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 /*
  * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */
 
 #ifndef OPENSSL_EVP_H
 # define OPENSSL_EVP_H
 # pragma once
 
 # include <openssl/macros.h>
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define HEADER_ENVELOPE_H
 # endif
 
 # include <stdarg.h>
 
 # ifndef OPENSSL_NO_STDIO
 #  include <stdio.h>
 # endif
 
 # include <openssl/opensslconf.h>
 # include <openssl/types.h>
 # include <openssl/core.h>
 # include <openssl/core_dispatch.h>
 # include <openssl/symhacks.h>
 # include <openssl/bio.h>
 # include <openssl/evperr.h>
 # include <openssl/params.h>
 
 # define EVP_MAX_MD_SIZE                 64/* longest known is SHA512 */
 # define EVP_MAX_KEY_LENGTH              64
 # define EVP_MAX_IV_LENGTH               16
 # define EVP_MAX_BLOCK_LENGTH            32
 # define EVP_MAX_AEAD_TAG_LENGTH         16
 
 # define PKCS5_SALT_LEN                  8
 /* Default PKCS#5 iteration count */
 # define PKCS5_DEFAULT_ITER              2048
 
 # include <openssl/objects.h>
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define EVP_PK_RSA      0x0001
 #  define EVP_PK_DSA      0x0002
 #  define EVP_PK_DH       0x0004
 #  define EVP_PK_EC       0x0008
 #  define EVP_PKT_SIGN    0x0010
 #  define EVP_PKT_ENC     0x0020
 #  define EVP_PKT_EXCH    0x0040
 #  define EVP_PKS_RSA     0x0100
 #  define EVP_PKS_DSA     0x0200
 #  define EVP_PKS_EC      0x0400
 # endif
 
 # define EVP_PKEY_NONE   NID_undef
 # define EVP_PKEY_RSA    NID_rsaEncryption
 # define EVP_PKEY_RSA2   NID_rsa
 # define EVP_PKEY_RSA_PSS NID_rsassaPss
 # define EVP_PKEY_DSA    NID_dsa
 # define EVP_PKEY_DSA1   NID_dsa_2
 # define EVP_PKEY_DSA2   NID_dsaWithSHA
 # define EVP_PKEY_DSA3   NID_dsaWithSHA1
 # define EVP_PKEY_DSA4   NID_dsaWithSHA1_2
 # define EVP_PKEY_DH     NID_dhKeyAgreement
 # define EVP_PKEY_DHX    NID_dhpublicnumber
 # define EVP_PKEY_EC     NID_X9_62_id_ecPublicKey
 # define EVP_PKEY_SM2    NID_sm2
 # define EVP_PKEY_HMAC   NID_hmac
 # define EVP_PKEY_CMAC   NID_cmac
 # define EVP_PKEY_SCRYPT NID_id_scrypt
 # define EVP_PKEY_TLS1_PRF NID_tls1_prf
 # define EVP_PKEY_HKDF   NID_hkdf
 # define EVP_PKEY_POLY1305 NID_poly1305
 # define EVP_PKEY_SIPHASH NID_siphash
 # define EVP_PKEY_X25519 NID_X25519
 # define EVP_PKEY_ED25519 NID_ED25519
 # define EVP_PKEY_X448 NID_X448
 # define EVP_PKEY_ED448 NID_ED448
 /* Special indicator that the object is uniquely provider side */
 # define EVP_PKEY_KEYMGMT -1
 
 /* Easy to use macros for EVP_PKEY related selections */
 # define EVP_PKEY_KEY_PARAMETERS                                            \
     ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS )
 # define EVP_PKEY_PRIVATE_KEY                                               \
     ( EVP_PKEY_KEY_PARAMETERS | OSSL_KEYMGMT_SELECT_PRIVATE_KEY )
 # define EVP_PKEY_PUBLIC_KEY                                                \
     ( EVP_PKEY_KEY_PARAMETERS | OSSL_KEYMGMT_SELECT_PUBLIC_KEY )
 # define EVP_PKEY_KEYPAIR                                                   \
     ( EVP_PKEY_PUBLIC_KEY | OSSL_KEYMGMT_SELECT_PRIVATE_KEY )
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
 int EVP_set_default_properties(OSSL_LIB_CTX *libctx, const char *propq);
 int EVP_default_properties_is_fips_enabled(OSSL_LIB_CTX *libctx);
 int EVP_default_properties_enable_fips(OSSL_LIB_CTX *libctx, int enable);
 
 # define EVP_PKEY_MO_SIGN        0x0001
 # define EVP_PKEY_MO_VERIFY      0x0002
 # define EVP_PKEY_MO_ENCRYPT     0x0004
 # define EVP_PKEY_MO_DECRYPT     0x0008
 
 # ifndef EVP_MD
 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type);
 OSSL_DEPRECATEDIN_3_0 EVP_MD *EVP_MD_meth_dup(const EVP_MD *md);
 OSSL_DEPRECATEDIN_3_0 void EVP_MD_meth_free(EVP_MD *md);
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize);
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize);
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize);
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags);
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx));
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx,
                                                      const void *data,
                                                      size_t count));
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx,
                                                    unsigned char *md));
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to,
                                                  const EVP_MD_CTX *from));
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx));
 OSSL_DEPRECATEDIN_3_0
 int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd,
                                                  int p1, void *p2));
 OSSL_DEPRECATEDIN_3_0 int EVP_MD_meth_get_input_blocksize(const EVP_MD *md);
 OSSL_DEPRECATEDIN_3_0 int EVP_MD_meth_get_result_size(const EVP_MD *md);
 OSSL_DEPRECATEDIN_3_0 int EVP_MD_meth_get_app_datasize(const EVP_MD *md);
 OSSL_DEPRECATEDIN_3_0 unsigned long EVP_MD_meth_get_flags(const EVP_MD *md);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
                                                 const void *data, size_t count);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
                                                unsigned char *md);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
                                               const EVP_MD_CTX *from);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
                                               int p1, void *p2);
 #  endif
 /* digest can only handle a single block */
 #  define EVP_MD_FLAG_ONESHOT     0x0001
 
 /* digest is extensible-output function, XOF */
 #  define EVP_MD_FLAG_XOF         0x0002
 
 /* DigestAlgorithmIdentifier flags... */
 
 #  define EVP_MD_FLAG_DIGALGID_MASK               0x0018
 
 /* NULL or absent parameter accepted. Use NULL */
 
 #  define EVP_MD_FLAG_DIGALGID_NULL               0x0000
 
 /* NULL or absent parameter accepted. Use NULL for PKCS#1 otherwise absent */
 
 #  define EVP_MD_FLAG_DIGALGID_ABSENT             0x0008
 
 /* Custom handling via ctrl */
 
 #  define EVP_MD_FLAG_DIGALGID_CUSTOM             0x0018
 
 /* Note if suitable for use in FIPS mode */
 #  define EVP_MD_FLAG_FIPS        0x0400
 
 /* Digest ctrls */
 
 #  define EVP_MD_CTRL_DIGALGID                    0x1
 #  define EVP_MD_CTRL_MICALG                      0x2
 #  define EVP_MD_CTRL_XOF_LEN                     0x3
 #  define EVP_MD_CTRL_TLSTREE                     0x4
 
 /* Minimum Algorithm specific ctrl value */
 
 #  define EVP_MD_CTRL_ALG_CTRL                    0x1000
 
 # endif                         /* !EVP_MD */
 
 /* values for EVP_MD_CTX flags */
 
 # define EVP_MD_CTX_FLAG_ONESHOT         0x0001/* digest update will be
                                                 * called once only */
 # define EVP_MD_CTX_FLAG_CLEANED         0x0002/* context has already been
                                                 * cleaned */
 # define EVP_MD_CTX_FLAG_REUSE           0x0004/* Don't free up ctx->md_data
                                                 * in EVP_MD_CTX_reset */
 /*
  * FIPS and pad options are ignored in 1.0.0, definitions are here so we
  * don't accidentally reuse the values for other purposes.
  */
 
 /* This flag has no effect from openssl-3.0 onwards */
 # define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW  0x0008
 
 /*
  * The following PAD options are also currently ignored in 1.0.0, digest
  * parameters are handled through EVP_DigestSign*() and EVP_DigestVerify*()
  * instead.
  */
 # define EVP_MD_CTX_FLAG_PAD_MASK        0xF0/* RSA mode to use */
 # define EVP_MD_CTX_FLAG_PAD_PKCS1       0x00/* PKCS#1 v1.5 mode */
 # define EVP_MD_CTX_FLAG_PAD_X931        0x10/* X9.31 mode */
 # define EVP_MD_CTX_FLAG_PAD_PSS         0x20/* PSS mode */
 
 # define EVP_MD_CTX_FLAG_NO_INIT         0x0100/* Don't initialize md_data */
 /*
  * Some functions such as EVP_DigestSign only finalise copies of internal
  * contexts so additional data can be included after the finalisation call.
  * This is inefficient if this functionality is not required: it is disabled
  * if the following flag is set.
  */
 # define EVP_MD_CTX_FLAG_FINALISE        0x0200
 /* NOTE: 0x0400 and 0x0800 are reserved for internal usage */
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 EVP_CIPHER *EVP_CIPHER_meth_new(int cipher_type, int block_size, int key_len);
 OSSL_DEPRECATEDIN_3_0
 EVP_CIPHER *EVP_CIPHER_meth_dup(const EVP_CIPHER *cipher);
 OSSL_DEPRECATEDIN_3_0
 void EVP_CIPHER_meth_free(EVP_CIPHER *cipher);
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_iv_length(EVP_CIPHER *cipher, int iv_len);
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_flags(EVP_CIPHER *cipher, unsigned long flags);
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER *cipher, int ctx_size);
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_init(EVP_CIPHER *cipher,
                              int (*init) (EVP_CIPHER_CTX *ctx,
                                           const unsigned char *key,
                                           const unsigned char *iv,
                                           int enc));
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_do_cipher(EVP_CIPHER *cipher,
                                   int (*do_cipher) (EVP_CIPHER_CTX *ctx,
                                                     unsigned char *out,
                                                     const unsigned char *in,
                                                     size_t inl));
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_cleanup(EVP_CIPHER *cipher,
                                 int (*cleanup) (EVP_CIPHER_CTX *));
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_set_asn1_params(EVP_CIPHER *cipher,
                                         int (*set_asn1_parameters) (EVP_CIPHER_CTX *,
                                                                     ASN1_TYPE *));
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_get_asn1_params(EVP_CIPHER *cipher,
                                         int (*get_asn1_parameters) (EVP_CIPHER_CTX *,
                                                                     ASN1_TYPE *));
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_meth_set_ctrl(EVP_CIPHER *cipher,
                              int (*ctrl) (EVP_CIPHER_CTX *, int type,
                                           int arg, void *ptr));
 OSSL_DEPRECATEDIN_3_0 int
 (*EVP_CIPHER_meth_get_init(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx,
                                                       const unsigned char *key,
                                                       const unsigned char *iv,
                                                       int enc);
 OSSL_DEPRECATEDIN_3_0 int
 (*EVP_CIPHER_meth_get_do_cipher(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx,
                                                            unsigned char *out,
                                                            const unsigned char *in,
                                                            size_t inl);
 OSSL_DEPRECATEDIN_3_0 int
 (*EVP_CIPHER_meth_get_cleanup(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *);
 OSSL_DEPRECATEDIN_3_0 int
 (*EVP_CIPHER_meth_get_set_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
                                                                  ASN1_TYPE *);
 OSSL_DEPRECATEDIN_3_0 int
 (*EVP_CIPHER_meth_get_get_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
                                                                  ASN1_TYPE *);
 OSSL_DEPRECATEDIN_3_0 int
 (*EVP_CIPHER_meth_get_ctrl(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *, int type,
                                                       int arg, void *ptr);
 # endif
 
 /* Values for cipher flags */
 
 /* Modes for ciphers */
 
 # define         EVP_CIPH_STREAM_CIPHER          0x0
 # define         EVP_CIPH_ECB_MODE               0x1
 # define         EVP_CIPH_CBC_MODE               0x2
 # define         EVP_CIPH_CFB_MODE               0x3
 # define         EVP_CIPH_OFB_MODE               0x4
 # define         EVP_CIPH_CTR_MODE               0x5
 # define         EVP_CIPH_GCM_MODE               0x6
 # define         EVP_CIPH_CCM_MODE               0x7
 # define         EVP_CIPH_XTS_MODE               0x10001
 # define         EVP_CIPH_WRAP_MODE              0x10002
 # define         EVP_CIPH_OCB_MODE               0x10003
 # define         EVP_CIPH_SIV_MODE               0x10004
 # define         EVP_CIPH_GCM_SIV_MODE           0x10005
 # define         EVP_CIPH_MODE                   0xF0007
 /* Set if variable length cipher */
 # define         EVP_CIPH_VARIABLE_LENGTH        0x8
 /* Set if the iv handling should be done by the cipher itself */
 # define         EVP_CIPH_CUSTOM_IV              0x10
 /* Set if the cipher's init() function should be called if key is NULL */
 # define         EVP_CIPH_ALWAYS_CALL_INIT       0x20
 /* Call ctrl() to init cipher parameters */
 # define         EVP_CIPH_CTRL_INIT              0x40
 /* Don't use standard key length function */
 # define         EVP_CIPH_CUSTOM_KEY_LENGTH      0x80
 /* Don't use standard block padding */
 # define         EVP_CIPH_NO_PADDING             0x100
 /* cipher handles random key generation */
 # define         EVP_CIPH_RAND_KEY               0x200
 /* cipher has its own additional copying logic */
 # define         EVP_CIPH_CUSTOM_COPY            0x400
 /* Don't use standard iv length function */
 # define         EVP_CIPH_CUSTOM_IV_LENGTH       0x800
 /* Legacy and no longer relevant: Allow use default ASN1 get/set iv */
 # define         EVP_CIPH_FLAG_DEFAULT_ASN1      0
 /* Free:                                         0x1000 */
 /* Buffer length in bits not bytes: CFB1 mode only */
 # define         EVP_CIPH_FLAG_LENGTH_BITS       0x2000
 /* Deprecated FIPS flag: was 0x4000 */
 # define         EVP_CIPH_FLAG_FIPS              0
 /* Deprecated FIPS flag: was 0x8000 */
 # define         EVP_CIPH_FLAG_NON_FIPS_ALLOW    0
 
 /*
  * Cipher handles any and all padding logic as well as finalisation.
  */
 # define         EVP_CIPH_FLAG_CTS               0x4000
 # define         EVP_CIPH_FLAG_CUSTOM_CIPHER     0x100000
 # define         EVP_CIPH_FLAG_AEAD_CIPHER       0x200000
 # define         EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0x400000
 /* Cipher can handle pipeline operations */
 # define         EVP_CIPH_FLAG_PIPELINE          0X800000
 /* For provider implementations that handle  ASN1 get/set param themselves */
 # define         EVP_CIPH_FLAG_CUSTOM_ASN1       0x1000000
 /* For ciphers generating unprotected CMS attributes */
 # define         EVP_CIPH_FLAG_CIPHER_WITH_MAC   0x2000000
 /* For supplementary wrap cipher support */
 # define         EVP_CIPH_FLAG_GET_WRAP_CIPHER   0x4000000
 # define         EVP_CIPH_FLAG_INVERSE_CIPHER    0x8000000
 
 /*
  * Cipher context flag to indicate we can handle wrap mode: if allowed in
  * older applications it could overflow buffers.
  */
 
 # define         EVP_CIPHER_CTX_FLAG_WRAP_ALLOW  0x1
 
 /* ctrl() values */
 
 # define         EVP_CTRL_INIT                   0x0
 # define         EVP_CTRL_SET_KEY_LENGTH         0x1
 # define         EVP_CTRL_GET_RC2_KEY_BITS       0x2
 # define         EVP_CTRL_SET_RC2_KEY_BITS       0x3
 # define         EVP_CTRL_GET_RC5_ROUNDS         0x4
 # define         EVP_CTRL_SET_RC5_ROUNDS         0x5
 # define         EVP_CTRL_RAND_KEY               0x6
 # define         EVP_CTRL_PBE_PRF_NID            0x7
 # define         EVP_CTRL_COPY                   0x8
 # define         EVP_CTRL_AEAD_SET_IVLEN         0x9
 # define         EVP_CTRL_AEAD_GET_TAG           0x10
 # define         EVP_CTRL_AEAD_SET_TAG           0x11
 # define         EVP_CTRL_AEAD_SET_IV_FIXED      0x12
 # define         EVP_CTRL_GCM_SET_IVLEN          EVP_CTRL_AEAD_SET_IVLEN
 # define         EVP_CTRL_GCM_GET_TAG            EVP_CTRL_AEAD_GET_TAG
 # define         EVP_CTRL_GCM_SET_TAG            EVP_CTRL_AEAD_SET_TAG
 # define         EVP_CTRL_GCM_SET_IV_FIXED       EVP_CTRL_AEAD_SET_IV_FIXED
 # define         EVP_CTRL_GCM_IV_GEN             0x13
 # define         EVP_CTRL_CCM_SET_IVLEN          EVP_CTRL_AEAD_SET_IVLEN
 # define         EVP_CTRL_CCM_GET_TAG            EVP_CTRL_AEAD_GET_TAG
 # define         EVP_CTRL_CCM_SET_TAG            EVP_CTRL_AEAD_SET_TAG
 # define         EVP_CTRL_CCM_SET_IV_FIXED       EVP_CTRL_AEAD_SET_IV_FIXED
 # define         EVP_CTRL_CCM_SET_L              0x14
 # define         EVP_CTRL_CCM_SET_MSGLEN         0x15
 /*
  * AEAD cipher deduces payload length and returns number of bytes required to
  * store MAC and eventual padding. Subsequent call to EVP_Cipher even
  * appends/verifies MAC.
  */
 # define         EVP_CTRL_AEAD_TLS1_AAD          0x16
 /* Used by composite AEAD ciphers, no-op in GCM, CCM... */
 # define         EVP_CTRL_AEAD_SET_MAC_KEY       0x17
 /* Set the GCM invocation field, decrypt only */
 # define         EVP_CTRL_GCM_SET_IV_INV         0x18
 
 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_AAD  0x19
 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT      0x1a
 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT      0x1b
 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE  0x1c
 
 # define         EVP_CTRL_SSL3_MASTER_SECRET             0x1d
 
 /* EVP_CTRL_SET_SBOX takes the char * specifying S-boxes */
 # define         EVP_CTRL_SET_SBOX                       0x1e
 /*
  * EVP_CTRL_SBOX_USED takes a 'size_t' and 'char *', pointing at a
  * pre-allocated buffer with specified size
  */
 # define         EVP_CTRL_SBOX_USED                      0x1f
 /* EVP_CTRL_KEY_MESH takes 'size_t' number of bytes to mesh the key after,
  * 0 switches meshing off
  */
 # define         EVP_CTRL_KEY_MESH                       0x20
 /* EVP_CTRL_BLOCK_PADDING_MODE takes the padding mode */
 # define         EVP_CTRL_BLOCK_PADDING_MODE             0x21
 
 /* Set the output buffers to use for a pipelined operation */
 # define         EVP_CTRL_SET_PIPELINE_OUTPUT_BUFS       0x22
 /* Set the input buffers to use for a pipelined operation */
 # define         EVP_CTRL_SET_PIPELINE_INPUT_BUFS        0x23
 /* Set the input buffer lengths to use for a pipelined operation */
 # define         EVP_CTRL_SET_PIPELINE_INPUT_LENS        0x24
 /* Get the IV length used by the cipher */
 # define         EVP_CTRL_GET_IVLEN                      0x25
 /* 0x26 is unused */
 /* Tell the cipher it's doing a speed test (SIV disallows multiple ops) */
 # define         EVP_CTRL_SET_SPEED                      0x27
 /* Get the unprotectedAttrs from cipher ctx */
 # define         EVP_CTRL_PROCESS_UNPROTECTED            0x28
 /* Get the supplementary wrap cipher */
 #define          EVP_CTRL_GET_WRAP_CIPHER                0x29
 /* TLSTREE key diversification */
 #define          EVP_CTRL_TLSTREE                        0x2A
 
 /* Padding modes */
 #define EVP_PADDING_PKCS7       1
 #define EVP_PADDING_ISO7816_4   2
 #define EVP_PADDING_ANSI923     3
 #define EVP_PADDING_ISO10126    4
 #define EVP_PADDING_ZERO        5
 
 /* RFC 5246 defines additional data to be 13 bytes in length */
 # define         EVP_AEAD_TLS1_AAD_LEN           13
 
 typedef struct {
     unsigned char *out;
     const unsigned char *inp;
     size_t len;
     unsigned int interleave;
 } EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM;
 
 /* GCM TLS constants */
 /* Length of fixed part of IV derived from PRF */
 # define EVP_GCM_TLS_FIXED_IV_LEN                        4
 /* Length of explicit part of IV part of TLS records */
 # define EVP_GCM_TLS_EXPLICIT_IV_LEN                     8
 /* Length of tag for TLS */
 # define EVP_GCM_TLS_TAG_LEN                             16
 
 /* CCM TLS constants */
 /* Length of fixed part of IV derived from PRF */
 # define EVP_CCM_TLS_FIXED_IV_LEN                        4
 /* Length of explicit part of IV part of TLS records */
 # define EVP_CCM_TLS_EXPLICIT_IV_LEN                     8
 /* Total length of CCM IV length for TLS */
 # define EVP_CCM_TLS_IV_LEN                              12
 /* Length of tag for TLS */
 # define EVP_CCM_TLS_TAG_LEN                             16
 /* Length of CCM8 tag for TLS */
 # define EVP_CCM8_TLS_TAG_LEN                            8
 
 /* Length of tag for TLS */
 # define EVP_CHACHAPOLY_TLS_TAG_LEN                      16
 
 typedef struct evp_cipher_info_st {
     const EVP_CIPHER *cipher;
     unsigned char iv[EVP_MAX_IV_LENGTH];
 } EVP_CIPHER_INFO;
 
 
 /* Password based encryption function */
 typedef int (EVP_PBE_KEYGEN) (EVP_CIPHER_CTX *ctx, const char *pass,
                               int passlen, ASN1_TYPE *param,
                               const EVP_CIPHER *cipher, const EVP_MD *md,
                               int en_de);
 
 typedef int (EVP_PBE_KEYGEN_EX) (EVP_CIPHER_CTX *ctx, const char *pass,
                                  int passlen, ASN1_TYPE *param,
                                  const EVP_CIPHER *cipher, const EVP_MD *md,
                                  int en_de, OSSL_LIB_CTX *libctx, const char *propq);
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
                                                          (rsa))
 # endif
 
 # ifndef OPENSSL_NO_DSA
 #  define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
                                         (dsa))
 # endif
 
 # if !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_DEPRECATED_3_0)
 #  define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,(dh))
 # endif
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  ifndef OPENSSL_NO_EC
 #   define EVP_PKEY_assign_EC_KEY(pkey,eckey) \
         EVP_PKEY_assign((pkey), EVP_PKEY_EC, (eckey))
 #  endif
 # endif
 # ifndef OPENSSL_NO_SIPHASH
 #  define EVP_PKEY_assign_SIPHASH(pkey,shkey) EVP_PKEY_assign((pkey),\
                                         EVP_PKEY_SIPHASH,(shkey))
 # endif
 
 # ifndef OPENSSL_NO_POLY1305
 #  define EVP_PKEY_assign_POLY1305(pkey,polykey) EVP_PKEY_assign((pkey),\
                                         EVP_PKEY_POLY1305,(polykey))
 # endif
 
 /* Add some extra combinations */
 # define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
 # define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
 # define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
 # define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
 
 int EVP_MD_get_type(const EVP_MD *md);
 # define EVP_MD_type EVP_MD_get_type
 # define EVP_MD_nid EVP_MD_get_type
 const char *EVP_MD_get0_name(const EVP_MD *md);
 # define EVP_MD_name EVP_MD_get0_name
 const char *EVP_MD_get0_description(const EVP_MD *md);
 int EVP_MD_is_a(const EVP_MD *md, const char *name);
 int EVP_MD_names_do_all(const EVP_MD *md,
                         void (*fn)(const char *name, void *data),
                         void *data);
 const OSSL_PROVIDER *EVP_MD_get0_provider(const EVP_MD *md);
 int EVP_MD_get_pkey_type(const EVP_MD *md);
 # define EVP_MD_pkey_type EVP_MD_get_pkey_type
 int EVP_MD_get_size(const EVP_MD *md);
 # define EVP_MD_size EVP_MD_get_size
 int EVP_MD_get_block_size(const EVP_MD *md);
 # define EVP_MD_block_size EVP_MD_get_block_size
 unsigned long EVP_MD_get_flags(const EVP_MD *md);
 # define EVP_MD_flags EVP_MD_get_flags
 int EVP_MD_xof(const EVP_MD *md);
 
 const EVP_MD *EVP_MD_CTX_get0_md(const EVP_MD_CTX *ctx);
 EVP_MD *EVP_MD_CTX_get1_md(EVP_MD_CTX *ctx);
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0
 int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
                                              const void *data, size_t count);
 OSSL_DEPRECATEDIN_3_0
 void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
                               int (*update) (EVP_MD_CTX *ctx,
                                              const void *data, size_t count));
 # endif
 int EVP_MD_CTX_get_size_ex(const EVP_MD_CTX *ctx);
 
 # define EVP_MD_CTX_get0_name(e)       EVP_MD_get0_name(EVP_MD_CTX_get0_md(e))
 # define EVP_MD_CTX_get_size(e)        EVP_MD_CTX_get_size_ex(e)
 # define EVP_MD_CTX_size               EVP_MD_CTX_get_size_ex
 # define EVP_MD_CTX_get_block_size(e)  EVP_MD_get_block_size(EVP_MD_CTX_get0_md(e))
 # define EVP_MD_CTX_block_size EVP_MD_CTX_get_block_size
 # define EVP_MD_CTX_get_type(e)            EVP_MD_get_type(EVP_MD_CTX_get0_md(e))
 # define EVP_MD_CTX_type EVP_MD_CTX_get_type
 EVP_PKEY_CTX *EVP_MD_CTX_get_pkey_ctx(const EVP_MD_CTX *ctx);
 # define EVP_MD_CTX_pkey_ctx EVP_MD_CTX_get_pkey_ctx
 void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx);
 void *EVP_MD_CTX_get0_md_data(const EVP_MD_CTX *ctx);
 # define EVP_MD_CTX_md_data EVP_MD_CTX_get0_md_data
 
 int EVP_CIPHER_get_nid(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_nid EVP_CIPHER_get_nid
 const char *EVP_CIPHER_get0_name(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_name EVP_CIPHER_get0_name
 const char *EVP_CIPHER_get0_description(const EVP_CIPHER *cipher);
 int EVP_CIPHER_is_a(const EVP_CIPHER *cipher, const char *name);
 int EVP_CIPHER_names_do_all(const EVP_CIPHER *cipher,
                             void (*fn)(const char *name, void *data),
                             void *data);
 const OSSL_PROVIDER *EVP_CIPHER_get0_provider(const EVP_CIPHER *cipher);
 int EVP_CIPHER_get_block_size(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_block_size EVP_CIPHER_get_block_size
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *cipher);
 # endif
 int EVP_CIPHER_get_key_length(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_key_length EVP_CIPHER_get_key_length
 int EVP_CIPHER_get_iv_length(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_iv_length EVP_CIPHER_get_iv_length
 unsigned long EVP_CIPHER_get_flags(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_flags EVP_CIPHER_get_flags
 int EVP_CIPHER_get_mode(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_mode EVP_CIPHER_get_mode
 int EVP_CIPHER_get_type(const EVP_CIPHER *cipher);
 # define EVP_CIPHER_type EVP_CIPHER_get_type
 EVP_CIPHER *EVP_CIPHER_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                              const char *properties);
 int EVP_CIPHER_up_ref(EVP_CIPHER *cipher);
 void EVP_CIPHER_free(EVP_CIPHER *cipher);
 
 const EVP_CIPHER *EVP_CIPHER_CTX_get0_cipher(const EVP_CIPHER_CTX *ctx);
 EVP_CIPHER *EVP_CIPHER_CTX_get1_cipher(EVP_CIPHER_CTX *ctx);
 int EVP_CIPHER_CTX_is_encrypting(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_encrypting EVP_CIPHER_CTX_is_encrypting
 int EVP_CIPHER_CTX_get_nid(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_nid EVP_CIPHER_CTX_get_nid
 int EVP_CIPHER_CTX_get_block_size(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_block_size EVP_CIPHER_CTX_get_block_size
 int EVP_CIPHER_CTX_get_key_length(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_key_length EVP_CIPHER_CTX_get_key_length
 int EVP_CIPHER_CTX_get_iv_length(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_iv_length EVP_CIPHER_CTX_get_iv_length
 int EVP_CIPHER_CTX_get_tag_length(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_tag_length EVP_CIPHER_CTX_get_tag_length
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0 const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0 const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0 unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx);
 # endif
 int EVP_CIPHER_CTX_get_updated_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len);
 int EVP_CIPHER_CTX_get_original_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len);
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx);
 # endif
 int EVP_CIPHER_CTX_get_num(const EVP_CIPHER_CTX *ctx);
 # define EVP_CIPHER_CTX_num EVP_CIPHER_CTX_get_num
 int EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num);
 EVP_CIPHER_CTX *EVP_CIPHER_CTX_dup(const EVP_CIPHER_CTX *in);
 int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in);
 void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
 void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
 void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx);
 void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data);
 # define EVP_CIPHER_CTX_get0_name(c) EVP_CIPHER_get0_name(EVP_CIPHER_CTX_get0_cipher(c))
 # define EVP_CIPHER_CTX_get_type(c)  EVP_CIPHER_get_type(EVP_CIPHER_CTX_get0_cipher(c))
 # define EVP_CIPHER_CTX_type         EVP_CIPHER_CTX_get_type
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define EVP_CIPHER_CTX_flags(c)    EVP_CIPHER_get_flags(EVP_CIPHER_CTX_get0_cipher(c))
 # endif
 # define EVP_CIPHER_CTX_get_mode(c)  EVP_CIPHER_get_mode(EVP_CIPHER_CTX_get0_cipher(c))
 # define EVP_CIPHER_CTX_mode         EVP_CIPHER_CTX_get_mode
 
 # define EVP_ENCODE_LENGTH(l)    ((((l)+2)/3*4)+((l)/48+1)*2+80)
 # define EVP_DECODE_LENGTH(l)    (((l)+3)/4*3+80)
 
 # define EVP_SignInit_ex(a,b,c)          EVP_DigestInit_ex(a,b,c)
 # define EVP_SignInit(a,b)               EVP_DigestInit(a,b)
 # define EVP_SignUpdate(a,b,c)           EVP_DigestUpdate(a,b,c)
 # define EVP_VerifyInit_ex(a,b,c)        EVP_DigestInit_ex(a,b,c)
 # define EVP_VerifyInit(a,b)             EVP_DigestInit(a,b)
 # define EVP_VerifyUpdate(a,b,c)         EVP_DigestUpdate(a,b,c)
 # define EVP_OpenUpdate(a,b,c,d,e)       EVP_DecryptUpdate(a,b,c,d,e)
 # define EVP_SealUpdate(a,b,c,d,e)       EVP_EncryptUpdate(a,b,c,d,e)
 
 # ifdef CONST_STRICT
 void BIO_set_md(BIO *, const EVP_MD *md);
 # else
 #  define BIO_set_md(b,md)          BIO_ctrl(b,BIO_C_SET_MD,0,(void *)(md))
 # endif
 # define BIO_get_md(b,mdp)          BIO_ctrl(b,BIO_C_GET_MD,0,(mdp))
 # define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(mdcp))
 # define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(mdcp))
 # define BIO_get_cipher_status(b)   BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
 # define BIO_get_cipher_ctx(b,c_pp) BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(c_pp))
 
 __owur int EVP_Cipher(EVP_CIPHER_CTX *c,
                           unsigned char *out,
                           const unsigned char *in, unsigned int inl);
 
 # define EVP_add_cipher_alias(n,alias) \
         OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
 # define EVP_add_digest_alias(n,alias) \
         OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
 # define EVP_delete_cipher_alias(alias) \
         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
 # define EVP_delete_digest_alias(alias) \
         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
 
 int EVP_MD_get_params(const EVP_MD *digest, OSSL_PARAM params[]);
 int EVP_MD_CTX_set_params(EVP_MD_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_MD_CTX_get_params(EVP_MD_CTX *ctx, OSSL_PARAM params[]);
 const OSSL_PARAM *EVP_MD_gettable_params(const EVP_MD *digest);
 const OSSL_PARAM *EVP_MD_settable_ctx_params(const EVP_MD *md);
 const OSSL_PARAM *EVP_MD_gettable_ctx_params(const EVP_MD *md);
 const OSSL_PARAM *EVP_MD_CTX_settable_params(EVP_MD_CTX *ctx);
 const OSSL_PARAM *EVP_MD_CTX_gettable_params(EVP_MD_CTX *ctx);
 int EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
 EVP_MD_CTX *EVP_MD_CTX_new(void);
 int EVP_MD_CTX_reset(EVP_MD_CTX *ctx);
 void EVP_MD_CTX_free(EVP_MD_CTX *ctx);
 # define EVP_MD_CTX_create()     EVP_MD_CTX_new()
 # define EVP_MD_CTX_init(ctx)    EVP_MD_CTX_reset((ctx))
 # define EVP_MD_CTX_destroy(ctx) EVP_MD_CTX_free((ctx))
 __owur EVP_MD_CTX *EVP_MD_CTX_dup(const EVP_MD_CTX *in);
 __owur int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in);
 void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);
 void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags);
 int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags);
 __owur int EVP_DigestInit_ex2(EVP_MD_CTX *ctx, const EVP_MD *type,
                               const OSSL_PARAM params[]);
 __owur int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type,
                                  ENGINE *impl);
 __owur int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d,
                                 size_t cnt);
 __owur int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md,
                                   unsigned int *s);
 __owur int EVP_Digest(const void *data, size_t count,
                           unsigned char *md, unsigned int *size,
                           const EVP_MD *type, ENGINE *impl);
 __owur int EVP_Q_digest(OSSL_LIB_CTX *libctx, const char *name,
                         const char *propq, const void *data, size_t datalen,
                         unsigned char *md, size_t *mdlen);
 
 __owur int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in);
 __owur int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
 __owur int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md,
                            unsigned int *s);
 __owur int EVP_DigestFinalXOF(EVP_MD_CTX *ctx, unsigned char *out,
                               size_t outlen);
 __owur int EVP_DigestSqueeze(EVP_MD_CTX *ctx, unsigned char *out,
                              size_t outlen);
 
 __owur EVP_MD *EVP_MD_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                             const char *properties);
 
 int EVP_MD_up_ref(EVP_MD *md);
 void EVP_MD_free(EVP_MD *md);
 
 int EVP_read_pw_string(char *buf, int length, const char *prompt, int verify);
 int EVP_read_pw_string_min(char *buf, int minlen, int maxlen,
                            const char *prompt, int verify);
 void EVP_set_pw_prompt(const char *prompt);
 char *EVP_get_pw_prompt(void);
 
 __owur int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
                           const unsigned char *salt,
                           const unsigned char *data, int datal, int count,
                           unsigned char *key, unsigned char *iv);
 
 void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags);
 void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags);
 int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags);
 
 __owur int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
                            const unsigned char *key, const unsigned char *iv);
 __owur int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,
                                   const EVP_CIPHER *cipher, ENGINE *impl,
                                   const unsigned char *key,
                                   const unsigned char *iv);
 __owur int EVP_EncryptInit_ex2(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
                                const unsigned char *key,
                                const unsigned char *iv,
                                const OSSL_PARAM params[]);
 __owur int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                  int *outl, const unsigned char *in, int inl);
 __owur int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                    int *outl);
 __owur int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                 int *outl);
 
 __owur int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
                            const unsigned char *key, const unsigned char *iv);
 __owur int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx,
                                   const EVP_CIPHER *cipher, ENGINE *impl,
                                   const unsigned char *key,
                                   const unsigned char *iv);
 __owur int EVP_DecryptInit_ex2(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
                                const unsigned char *key,
                                const unsigned char *iv,
                                const OSSL_PARAM params[]);
 __owur int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                  int *outl, const unsigned char *in, int inl);
 __owur int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm,
                             int *outl);
 __owur int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm,
                                    int *outl);
 
 __owur int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
                           const unsigned char *key, const unsigned char *iv,
                           int enc);
 __owur int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx,
                                  const EVP_CIPHER *cipher, ENGINE *impl,
                                  const unsigned char *key,
                                  const unsigned char *iv, int enc);
 __owur int EVP_CipherInit_ex2(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
                               const unsigned char *key, const unsigned char *iv,
                               int enc, const OSSL_PARAM params[]);
 __owur int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
                             int *outl, const unsigned char *in, int inl);
 __owur int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm,
                            int *outl);
 __owur int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm,
                               int *outl);
 
 __owur int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s,
                          EVP_PKEY *pkey);
 __owur int EVP_SignFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s,
                             EVP_PKEY *pkey, OSSL_LIB_CTX *libctx,
                             const char *propq);
 
 __owur int EVP_DigestSign(EVP_MD_CTX *ctx, unsigned char *sigret,
                           size_t *siglen, const unsigned char *tbs,
                           size_t tbslen);
 
 __owur int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
                            unsigned int siglen, EVP_PKEY *pkey);
 __owur int EVP_VerifyFinal_ex(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
                               unsigned int siglen, EVP_PKEY *pkey,
                               OSSL_LIB_CTX *libctx, const char *propq);
 
 __owur int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret,
                             size_t siglen, const unsigned char *tbs,
                             size_t tbslen);
 
 __owur int EVP_DigestSignInit_ex(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
                           const char *mdname, OSSL_LIB_CTX *libctx,
                           const char *props, EVP_PKEY *pkey,
                           const OSSL_PARAM params[]);
 __owur int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
                                   const EVP_MD *type, ENGINE *e,
                                   EVP_PKEY *pkey);
 __owur int EVP_DigestSignUpdate(EVP_MD_CTX *ctx, const void *data, size_t dsize);
 __owur int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
                                size_t *siglen);
 
 __owur int EVP_DigestVerifyInit_ex(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
                             const char *mdname, OSSL_LIB_CTX *libctx,
                             const char *props, EVP_PKEY *pkey,
                             const OSSL_PARAM params[]);
 __owur int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
                                 const EVP_MD *type, ENGINE *e,
                                 EVP_PKEY *pkey);
 int EVP_DigestVerifyUpdate(EVP_MD_CTX *ctx, const void *data, size_t dsize);
 __owur int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
                                  size_t siglen);
 
 __owur int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
                         const unsigned char *ek, int ekl,
                         const unsigned char *iv, EVP_PKEY *priv);
 __owur int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
 
 __owur int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
                         unsigned char **ek, int *ekl, unsigned char *iv,
                         EVP_PKEY **pubk, int npubk);
 __owur int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
 
 EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void);
 void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx);
 int EVP_ENCODE_CTX_copy(EVP_ENCODE_CTX *dctx, const EVP_ENCODE_CTX *sctx);
 int EVP_ENCODE_CTX_num(EVP_ENCODE_CTX *ctx);
 void EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
 int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
                      const unsigned char *in, int inl);
 void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl);
 int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
 
 void EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
 int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
                      const unsigned char *in, int inl);
 int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
                     char *out, int *outl);
 int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define EVP_CIPHER_CTX_init(c)      EVP_CIPHER_CTX_reset(c)
 #  define EVP_CIPHER_CTX_cleanup(c)   EVP_CIPHER_CTX_reset(c)
 # endif
 EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void);
 int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *c);
 void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *c);
 int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
 int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *c, int pad);
 int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
 int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);
 int EVP_CIPHER_get_params(EVP_CIPHER *cipher, OSSL_PARAM params[]);
 int EVP_CIPHER_CTX_set_params(EVP_CIPHER_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_CIPHER_CTX_get_params(EVP_CIPHER_CTX *ctx, OSSL_PARAM params[]);
 const OSSL_PARAM *EVP_CIPHER_gettable_params(const EVP_CIPHER *cipher);
 const OSSL_PARAM *EVP_CIPHER_settable_ctx_params(const EVP_CIPHER *cipher);
 const OSSL_PARAM *EVP_CIPHER_gettable_ctx_params(const EVP_CIPHER *cipher);
 const OSSL_PARAM *EVP_CIPHER_CTX_settable_params(EVP_CIPHER_CTX *ctx);
 const OSSL_PARAM *EVP_CIPHER_CTX_gettable_params(EVP_CIPHER_CTX *ctx);
 
 int EVP_CIPHER_CTX_set_algor_params(EVP_CIPHER_CTX *ctx, const X509_ALGOR *alg);
 int EVP_CIPHER_CTX_get_algor_params(EVP_CIPHER_CTX *ctx, X509_ALGOR *alg);
 int EVP_CIPHER_CTX_get_algor(EVP_CIPHER_CTX *ctx, X509_ALGOR **alg);
 
 const BIO_METHOD *BIO_f_md(void);
 const BIO_METHOD *BIO_f_base64(void);
 const BIO_METHOD *BIO_f_cipher(void);
 const BIO_METHOD *BIO_f_reliable(void);
 __owur int BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
                           const unsigned char *i, int enc);
 
 const EVP_MD *EVP_md_null(void);
 # ifndef OPENSSL_NO_MD2
 const EVP_MD *EVP_md2(void);
 # endif
 # ifndef OPENSSL_NO_MD4
 const EVP_MD *EVP_md4(void);
 # endif
 # ifndef OPENSSL_NO_MD5
 const EVP_MD *EVP_md5(void);
 const EVP_MD *EVP_md5_sha1(void);
 # endif
 # ifndef OPENSSL_NO_BLAKE2
 const EVP_MD *EVP_blake2b512(void);
 const EVP_MD *EVP_blake2s256(void);
 # endif
 const EVP_MD *EVP_sha1(void);
 const EVP_MD *EVP_sha224(void);
 const EVP_MD *EVP_sha256(void);
 const EVP_MD *EVP_sha384(void);
 const EVP_MD *EVP_sha512(void);
 const EVP_MD *EVP_sha512_224(void);
 const EVP_MD *EVP_sha512_256(void);
 const EVP_MD *EVP_sha3_224(void);
 const EVP_MD *EVP_sha3_256(void);
 const EVP_MD *EVP_sha3_384(void);
 const EVP_MD *EVP_sha3_512(void);
 const EVP_MD *EVP_shake128(void);
 const EVP_MD *EVP_shake256(void);
 
 # ifndef OPENSSL_NO_MDC2
 const EVP_MD *EVP_mdc2(void);
 # endif
 # ifndef OPENSSL_NO_RMD160
 const EVP_MD *EVP_ripemd160(void);
 # endif
 # ifndef OPENSSL_NO_WHIRLPOOL
 const EVP_MD *EVP_whirlpool(void);
 # endif
 # ifndef OPENSSL_NO_SM3
 const EVP_MD *EVP_sm3(void);
 # endif
 const EVP_CIPHER *EVP_enc_null(void); /* does nothing :-) */
 # ifndef OPENSSL_NO_DES
 const EVP_CIPHER *EVP_des_ecb(void);
 const EVP_CIPHER *EVP_des_ede(void);
 const EVP_CIPHER *EVP_des_ede3(void);
 const EVP_CIPHER *EVP_des_ede_ecb(void);
 const EVP_CIPHER *EVP_des_ede3_ecb(void);
 const EVP_CIPHER *EVP_des_cfb64(void);
 #  define EVP_des_cfb EVP_des_cfb64
 const EVP_CIPHER *EVP_des_cfb1(void);
 const EVP_CIPHER *EVP_des_cfb8(void);
 const EVP_CIPHER *EVP_des_ede_cfb64(void);
 #  define EVP_des_ede_cfb EVP_des_ede_cfb64
 const EVP_CIPHER *EVP_des_ede3_cfb64(void);
 #  define EVP_des_ede3_cfb EVP_des_ede3_cfb64
 const EVP_CIPHER *EVP_des_ede3_cfb1(void);
 const EVP_CIPHER *EVP_des_ede3_cfb8(void);
 const EVP_CIPHER *EVP_des_ofb(void);
 const EVP_CIPHER *EVP_des_ede_ofb(void);
 const EVP_CIPHER *EVP_des_ede3_ofb(void);
 const EVP_CIPHER *EVP_des_cbc(void);
 const EVP_CIPHER *EVP_des_ede_cbc(void);
 const EVP_CIPHER *EVP_des_ede3_cbc(void);
 const EVP_CIPHER *EVP_desx_cbc(void);
 const EVP_CIPHER *EVP_des_ede3_wrap(void);
 /*
  * This should now be supported through the dev_crypto ENGINE. But also, why
  * are rc4 and md5 declarations made here inside a "NO_DES" precompiler
  * branch?
  */
 # endif
 # ifndef OPENSSL_NO_RC4
 const EVP_CIPHER *EVP_rc4(void);
 const EVP_CIPHER *EVP_rc4_40(void);
 #  ifndef OPENSSL_NO_MD5
 const EVP_CIPHER *EVP_rc4_hmac_md5(void);
 #  endif
 # endif
 # ifndef OPENSSL_NO_IDEA
 const EVP_CIPHER *EVP_idea_ecb(void);
 const EVP_CIPHER *EVP_idea_cfb64(void);
 #  define EVP_idea_cfb EVP_idea_cfb64
 const EVP_CIPHER *EVP_idea_ofb(void);
 const EVP_CIPHER *EVP_idea_cbc(void);
 # endif
 # ifndef OPENSSL_NO_RC2
 const EVP_CIPHER *EVP_rc2_ecb(void);
 const EVP_CIPHER *EVP_rc2_cbc(void);
 const EVP_CIPHER *EVP_rc2_40_cbc(void);
 const EVP_CIPHER *EVP_rc2_64_cbc(void);
 const EVP_CIPHER *EVP_rc2_cfb64(void);
 #  define EVP_rc2_cfb EVP_rc2_cfb64
 const EVP_CIPHER *EVP_rc2_ofb(void);
 # endif
 # ifndef OPENSSL_NO_BF
 const EVP_CIPHER *EVP_bf_ecb(void);
 const EVP_CIPHER *EVP_bf_cbc(void);
 const EVP_CIPHER *EVP_bf_cfb64(void);
 #  define EVP_bf_cfb EVP_bf_cfb64
 const EVP_CIPHER *EVP_bf_ofb(void);
 # endif
 # ifndef OPENSSL_NO_CAST
 const EVP_CIPHER *EVP_cast5_ecb(void);
 const EVP_CIPHER *EVP_cast5_cbc(void);
 const EVP_CIPHER *EVP_cast5_cfb64(void);
 #  define EVP_cast5_cfb EVP_cast5_cfb64
 const EVP_CIPHER *EVP_cast5_ofb(void);
 # endif
 # ifndef OPENSSL_NO_RC5
 const EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
 const EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
 const EVP_CIPHER *EVP_rc5_32_12_16_cfb64(void);
 #  define EVP_rc5_32_12_16_cfb EVP_rc5_32_12_16_cfb64
 const EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
 # endif
 const EVP_CIPHER *EVP_aes_128_ecb(void);
 const EVP_CIPHER *EVP_aes_128_cbc(void);
 const EVP_CIPHER *EVP_aes_128_cfb1(void);
 const EVP_CIPHER *EVP_aes_128_cfb8(void);
 const EVP_CIPHER *EVP_aes_128_cfb128(void);
 # define EVP_aes_128_cfb EVP_aes_128_cfb128
 const EVP_CIPHER *EVP_aes_128_ofb(void);
 const EVP_CIPHER *EVP_aes_128_ctr(void);
 const EVP_CIPHER *EVP_aes_128_ccm(void);
 const EVP_CIPHER *EVP_aes_128_gcm(void);
 const EVP_CIPHER *EVP_aes_128_xts(void);
 const EVP_CIPHER *EVP_aes_128_wrap(void);
 const EVP_CIPHER *EVP_aes_128_wrap_pad(void);
 # ifndef OPENSSL_NO_OCB
 const EVP_CIPHER *EVP_aes_128_ocb(void);
 # endif
 const EVP_CIPHER *EVP_aes_192_ecb(void);
 const EVP_CIPHER *EVP_aes_192_cbc(void);
 const EVP_CIPHER *EVP_aes_192_cfb1(void);
 const EVP_CIPHER *EVP_aes_192_cfb8(void);
 const EVP_CIPHER *EVP_aes_192_cfb128(void);
 # define EVP_aes_192_cfb EVP_aes_192_cfb128
 const EVP_CIPHER *EVP_aes_192_ofb(void);
 const EVP_CIPHER *EVP_aes_192_ctr(void);
 const EVP_CIPHER *EVP_aes_192_ccm(void);
 const EVP_CIPHER *EVP_aes_192_gcm(void);
 const EVP_CIPHER *EVP_aes_192_wrap(void);
 const EVP_CIPHER *EVP_aes_192_wrap_pad(void);
 # ifndef OPENSSL_NO_OCB
 const EVP_CIPHER *EVP_aes_192_ocb(void);
 # endif
 const EVP_CIPHER *EVP_aes_256_ecb(void);
 const EVP_CIPHER *EVP_aes_256_cbc(void);
 const EVP_CIPHER *EVP_aes_256_cfb1(void);
 const EVP_CIPHER *EVP_aes_256_cfb8(void);
 const EVP_CIPHER *EVP_aes_256_cfb128(void);
 # define EVP_aes_256_cfb EVP_aes_256_cfb128
 const EVP_CIPHER *EVP_aes_256_ofb(void);
 const EVP_CIPHER *EVP_aes_256_ctr(void);
 const EVP_CIPHER *EVP_aes_256_ccm(void);
 const EVP_CIPHER *EVP_aes_256_gcm(void);
 const EVP_CIPHER *EVP_aes_256_xts(void);
 const EVP_CIPHER *EVP_aes_256_wrap(void);
 const EVP_CIPHER *EVP_aes_256_wrap_pad(void);
 # ifndef OPENSSL_NO_OCB
 const EVP_CIPHER *EVP_aes_256_ocb(void);
 # endif
 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void);
 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void);
 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void);
 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void);
 # ifndef OPENSSL_NO_ARIA
 const EVP_CIPHER *EVP_aria_128_ecb(void);
 const EVP_CIPHER *EVP_aria_128_cbc(void);
 const EVP_CIPHER *EVP_aria_128_cfb1(void);
 const EVP_CIPHER *EVP_aria_128_cfb8(void);
 const EVP_CIPHER *EVP_aria_128_cfb128(void);
 #  define EVP_aria_128_cfb EVP_aria_128_cfb128
 const EVP_CIPHER *EVP_aria_128_ctr(void);
 const EVP_CIPHER *EVP_aria_128_ofb(void);
 const EVP_CIPHER *EVP_aria_128_gcm(void);
 const EVP_CIPHER *EVP_aria_128_ccm(void);
 const EVP_CIPHER *EVP_aria_192_ecb(void);
 const EVP_CIPHER *EVP_aria_192_cbc(void);
 const EVP_CIPHER *EVP_aria_192_cfb1(void);
 const EVP_CIPHER *EVP_aria_192_cfb8(void);
 const EVP_CIPHER *EVP_aria_192_cfb128(void);
 #  define EVP_aria_192_cfb EVP_aria_192_cfb128
 const EVP_CIPHER *EVP_aria_192_ctr(void);
 const EVP_CIPHER *EVP_aria_192_ofb(void);
 const EVP_CIPHER *EVP_aria_192_gcm(void);
 const EVP_CIPHER *EVP_aria_192_ccm(void);
 const EVP_CIPHER *EVP_aria_256_ecb(void);
 const EVP_CIPHER *EVP_aria_256_cbc(void);
 const EVP_CIPHER *EVP_aria_256_cfb1(void);
 const EVP_CIPHER *EVP_aria_256_cfb8(void);
 const EVP_CIPHER *EVP_aria_256_cfb128(void);
 #  define EVP_aria_256_cfb EVP_aria_256_cfb128
 const EVP_CIPHER *EVP_aria_256_ctr(void);
 const EVP_CIPHER *EVP_aria_256_ofb(void);
 const EVP_CIPHER *EVP_aria_256_gcm(void);
 const EVP_CIPHER *EVP_aria_256_ccm(void);
 # endif
 # ifndef OPENSSL_NO_CAMELLIA
 const EVP_CIPHER *EVP_camellia_128_ecb(void);
 const EVP_CIPHER *EVP_camellia_128_cbc(void);
 const EVP_CIPHER *EVP_camellia_128_cfb1(void);
 const EVP_CIPHER *EVP_camellia_128_cfb8(void);
 const EVP_CIPHER *EVP_camellia_128_cfb128(void);
 #  define EVP_camellia_128_cfb EVP_camellia_128_cfb128
 const EVP_CIPHER *EVP_camellia_128_ofb(void);
 const EVP_CIPHER *EVP_camellia_128_ctr(void);
 const EVP_CIPHER *EVP_camellia_192_ecb(void);
 const EVP_CIPHER *EVP_camellia_192_cbc(void);
 const EVP_CIPHER *EVP_camellia_192_cfb1(void);
 const EVP_CIPHER *EVP_camellia_192_cfb8(void);
 const EVP_CIPHER *EVP_camellia_192_cfb128(void);
 #  define EVP_camellia_192_cfb EVP_camellia_192_cfb128
 const EVP_CIPHER *EVP_camellia_192_ofb(void);
 const EVP_CIPHER *EVP_camellia_192_ctr(void);
 const EVP_CIPHER *EVP_camellia_256_ecb(void);
 const EVP_CIPHER *EVP_camellia_256_cbc(void);
 const EVP_CIPHER *EVP_camellia_256_cfb1(void);
 const EVP_CIPHER *EVP_camellia_256_cfb8(void);
 const EVP_CIPHER *EVP_camellia_256_cfb128(void);
 #  define EVP_camellia_256_cfb EVP_camellia_256_cfb128
 const EVP_CIPHER *EVP_camellia_256_ofb(void);
 const EVP_CIPHER *EVP_camellia_256_ctr(void);
 # endif
 # ifndef OPENSSL_NO_CHACHA
 const EVP_CIPHER *EVP_chacha20(void);
 #  ifndef OPENSSL_NO_POLY1305
 const EVP_CIPHER *EVP_chacha20_poly1305(void);
 #  endif
 # endif
 
 # ifndef OPENSSL_NO_SEED
 const EVP_CIPHER *EVP_seed_ecb(void);
 const EVP_CIPHER *EVP_seed_cbc(void);
 const EVP_CIPHER *EVP_seed_cfb128(void);
 #  define EVP_seed_cfb EVP_seed_cfb128
 const EVP_CIPHER *EVP_seed_ofb(void);
 # endif
 
 # ifndef OPENSSL_NO_SM4
 const EVP_CIPHER *EVP_sm4_ecb(void);
 const EVP_CIPHER *EVP_sm4_cbc(void);
 const EVP_CIPHER *EVP_sm4_cfb128(void);
 #  define EVP_sm4_cfb EVP_sm4_cfb128
 const EVP_CIPHER *EVP_sm4_ofb(void);
 const EVP_CIPHER *EVP_sm4_ctr(void);
 # endif
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define OPENSSL_add_all_algorithms_conf() \
     OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS \
                         | OPENSSL_INIT_ADD_ALL_DIGESTS \
                         | OPENSSL_INIT_LOAD_CONFIG, NULL)
 #  define OPENSSL_add_all_algorithms_noconf() \
     OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS \
                         | OPENSSL_INIT_ADD_ALL_DIGESTS, NULL)
 
 #  ifdef OPENSSL_LOAD_CONF
 #   define OpenSSL_add_all_algorithms() OPENSSL_add_all_algorithms_conf()
 #  else
 #   define OpenSSL_add_all_algorithms() OPENSSL_add_all_algorithms_noconf()
 #  endif
 
 #  define OpenSSL_add_all_ciphers() \
     OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL)
 #  define OpenSSL_add_all_digests() \
     OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL)
 
 #  define EVP_cleanup() while(0) continue
 # endif
 
 int EVP_add_cipher(const EVP_CIPHER *cipher);
 int EVP_add_digest(const EVP_MD *digest);
 
 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
 const EVP_MD *EVP_get_digestbyname(const char *name);
 
 void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph,
                                    const char *from, const char *to, void *x),
                        void *arg);
 void EVP_CIPHER_do_all_sorted(void (*fn)
                                (const EVP_CIPHER *ciph, const char *from,
                                 const char *to, void *x), void *arg);
 void EVP_CIPHER_do_all_provided(OSSL_LIB_CTX *libctx,
                                 void (*fn)(EVP_CIPHER *cipher, void *arg),
                                 void *arg);
 
 void EVP_MD_do_all(void (*fn) (const EVP_MD *ciph,
                                const char *from, const char *to, void *x),
                    void *arg);
 void EVP_MD_do_all_sorted(void (*fn)
                            (const EVP_MD *ciph, const char *from,
                             const char *to, void *x), void *arg);
 void EVP_MD_do_all_provided(OSSL_LIB_CTX *libctx,
                             void (*fn)(EVP_MD *md, void *arg),
                             void *arg);
 
 /* MAC stuff */
 
 EVP_MAC *EVP_MAC_fetch(OSSL_LIB_CTX *libctx, const char *algorithm,
                        const char *properties);
 int EVP_MAC_up_ref(EVP_MAC *mac);
 void EVP_MAC_free(EVP_MAC *mac);
 const char *EVP_MAC_get0_name(const EVP_MAC *mac);
 const char *EVP_MAC_get0_description(const EVP_MAC *mac);
 int EVP_MAC_is_a(const EVP_MAC *mac, const char *name);
 const OSSL_PROVIDER *EVP_MAC_get0_provider(const EVP_MAC *mac);
 int EVP_MAC_get_params(EVP_MAC *mac, OSSL_PARAM params[]);
 
 EVP_MAC_CTX *EVP_MAC_CTX_new(EVP_MAC *mac);
 void EVP_MAC_CTX_free(EVP_MAC_CTX *ctx);
 EVP_MAC_CTX *EVP_MAC_CTX_dup(const EVP_MAC_CTX *src);
 EVP_MAC *EVP_MAC_CTX_get0_mac(EVP_MAC_CTX *ctx);
 int EVP_MAC_CTX_get_params(EVP_MAC_CTX *ctx, OSSL_PARAM params[]);
 int EVP_MAC_CTX_set_params(EVP_MAC_CTX *ctx, const OSSL_PARAM params[]);
 
 size_t EVP_MAC_CTX_get_mac_size(EVP_MAC_CTX *ctx);
 size_t EVP_MAC_CTX_get_block_size(EVP_MAC_CTX *ctx);
 unsigned char *EVP_Q_mac(OSSL_LIB_CTX *libctx, const char *name, const char *propq,
                          const char *subalg, const OSSL_PARAM *params,
                          const void *key, size_t keylen,
                          const unsigned char *data, size_t datalen,
                          unsigned char *out, size_t outsize, size_t *outlen);
 int EVP_MAC_init(EVP_MAC_CTX *ctx, const unsigned char *key, size_t keylen,
                  const OSSL_PARAM params[]);
 int EVP_MAC_update(EVP_MAC_CTX *ctx, const unsigned char *data, size_t datalen);
 int EVP_MAC_final(EVP_MAC_CTX *ctx,
                   unsigned char *out, size_t *outl, size_t outsize);
 int EVP_MAC_finalXOF(EVP_MAC_CTX *ctx, unsigned char *out, size_t outsize);
 const OSSL_PARAM *EVP_MAC_gettable_params(const EVP_MAC *mac);
 const OSSL_PARAM *EVP_MAC_gettable_ctx_params(const EVP_MAC *mac);
 const OSSL_PARAM *EVP_MAC_settable_ctx_params(const EVP_MAC *mac);
 const OSSL_PARAM *EVP_MAC_CTX_gettable_params(EVP_MAC_CTX *ctx);
 const OSSL_PARAM *EVP_MAC_CTX_settable_params(EVP_MAC_CTX *ctx);
 
 void EVP_MAC_do_all_provided(OSSL_LIB_CTX *libctx,
                              void (*fn)(EVP_MAC *mac, void *arg),
                              void *arg);
 int EVP_MAC_names_do_all(const EVP_MAC *mac,
                          void (*fn)(const char *name, void *data),
                          void *data);
 
 /* RAND stuff */
 EVP_RAND *EVP_RAND_fetch(OSSL_LIB_CTX *libctx, const char *algorithm,
                          const char *properties);
 int EVP_RAND_up_ref(EVP_RAND *rand);
 void EVP_RAND_free(EVP_RAND *rand);
 const char *EVP_RAND_get0_name(const EVP_RAND *rand);
 const char *EVP_RAND_get0_description(const EVP_RAND *md);
 int EVP_RAND_is_a(const EVP_RAND *rand, const char *name);
 const OSSL_PROVIDER *EVP_RAND_get0_provider(const EVP_RAND *rand);
 int EVP_RAND_get_params(EVP_RAND *rand, OSSL_PARAM params[]);
 
 EVP_RAND_CTX *EVP_RAND_CTX_new(EVP_RAND *rand, EVP_RAND_CTX *parent);
 int EVP_RAND_CTX_up_ref(EVP_RAND_CTX *ctx);
 void EVP_RAND_CTX_free(EVP_RAND_CTX *ctx);
 EVP_RAND *EVP_RAND_CTX_get0_rand(EVP_RAND_CTX *ctx);
 int EVP_RAND_CTX_get_params(EVP_RAND_CTX *ctx, OSSL_PARAM params[]);
 int EVP_RAND_CTX_set_params(EVP_RAND_CTX *ctx, const OSSL_PARAM params[]);
 const OSSL_PARAM *EVP_RAND_gettable_params(const EVP_RAND *rand);
 const OSSL_PARAM *EVP_RAND_gettable_ctx_params(const EVP_RAND *rand);
 const OSSL_PARAM *EVP_RAND_settable_ctx_params(const EVP_RAND *rand);
 const OSSL_PARAM *EVP_RAND_CTX_gettable_params(EVP_RAND_CTX *ctx);
 const OSSL_PARAM *EVP_RAND_CTX_settable_params(EVP_RAND_CTX *ctx);
 
 void EVP_RAND_do_all_provided(OSSL_LIB_CTX *libctx,
                               void (*fn)(EVP_RAND *rand, void *arg),
                               void *arg);
 int EVP_RAND_names_do_all(const EVP_RAND *rand,
                           void (*fn)(const char *name, void *data),
                           void *data);
 
 __owur int EVP_RAND_instantiate(EVP_RAND_CTX *ctx, unsigned int strength,
                                 int prediction_resistance,
                                 const unsigned char *pstr, size_t pstr_len,
                                 const OSSL_PARAM params[]);
 int EVP_RAND_uninstantiate(EVP_RAND_CTX *ctx);
 __owur int EVP_RAND_generate(EVP_RAND_CTX *ctx, unsigned char *out,
                              size_t outlen, unsigned int strength,
                              int prediction_resistance,
                              const unsigned char *addin, size_t addin_len);
 int EVP_RAND_reseed(EVP_RAND_CTX *ctx, int prediction_resistance,
                     const unsigned char *ent, size_t ent_len,
                     const unsigned char *addin, size_t addin_len);
 __owur int EVP_RAND_nonce(EVP_RAND_CTX *ctx, unsigned char *out, size_t outlen);
 __owur int EVP_RAND_enable_locking(EVP_RAND_CTX *ctx);
 
 int EVP_RAND_verify_zeroization(EVP_RAND_CTX *ctx);
 unsigned int EVP_RAND_get_strength(EVP_RAND_CTX *ctx);
 int EVP_RAND_get_state(EVP_RAND_CTX *ctx);
 
 # define EVP_RAND_STATE_UNINITIALISED    0
 # define EVP_RAND_STATE_READY            1
 # define EVP_RAND_STATE_ERROR            2
 
 /* PKEY stuff */
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 int EVP_PKEY_decrypt_old(unsigned char *dec_key,
                                           const unsigned char *enc_key,
                                           int enc_key_len,
                                           EVP_PKEY *private_key);
 OSSL_DEPRECATEDIN_3_0 int EVP_PKEY_encrypt_old(unsigned char *enc_key,
                                           const unsigned char *key,
                                           int key_len, EVP_PKEY *pub_key);
 # endif
 int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name);
 int EVP_PKEY_type_names_do_all(const EVP_PKEY *pkey,
                                void (*fn)(const char *name, void *data),
                                void *data);
 int EVP_PKEY_type(int type);
 int EVP_PKEY_get_id(const EVP_PKEY *pkey);
 # define EVP_PKEY_id EVP_PKEY_get_id
 int EVP_PKEY_get_base_id(const EVP_PKEY *pkey);
 # define EVP_PKEY_base_id EVP_PKEY_get_base_id
 int EVP_PKEY_get_bits(const EVP_PKEY *pkey);
 # define EVP_PKEY_bits EVP_PKEY_get_bits
 int EVP_PKEY_get_security_bits(const EVP_PKEY *pkey);
 # define EVP_PKEY_security_bits EVP_PKEY_get_security_bits
 int EVP_PKEY_get_size(const EVP_PKEY *pkey);
 # define EVP_PKEY_size EVP_PKEY_get_size
 int EVP_PKEY_can_sign(const EVP_PKEY *pkey);
 int EVP_PKEY_set_type(EVP_PKEY *pkey, int type);
 int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len);
 int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt);
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  ifndef OPENSSL_NO_ENGINE
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e);
 OSSL_DEPRECATEDIN_3_0
 ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey);
 #  endif
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key);
 OSSL_DEPRECATEDIN_3_0
 void *EVP_PKEY_get0(const EVP_PKEY *pkey);
 OSSL_DEPRECATEDIN_3_0
 const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len);
 #  ifndef OPENSSL_NO_POLY1305
 OSSL_DEPRECATEDIN_3_0
 const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len);
 #  endif
 #  ifndef OPENSSL_NO_SIPHASH
 OSSL_DEPRECATEDIN_3_0
 const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len);
 #  endif
 
 struct rsa_st;
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key);
 OSSL_DEPRECATEDIN_3_0
 const struct rsa_st *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey);
 OSSL_DEPRECATEDIN_3_0
 struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
 
 #  ifndef OPENSSL_NO_DSA
 struct dsa_st;
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, struct dsa_st *key);
 OSSL_DEPRECATEDIN_3_0
 const struct dsa_st *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey);
 OSSL_DEPRECATEDIN_3_0
 struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
 #  endif
 
 #  ifndef OPENSSL_NO_DH
 struct dh_st;
 OSSL_DEPRECATEDIN_3_0 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, struct dh_st *key);
 OSSL_DEPRECATEDIN_3_0 const struct dh_st *EVP_PKEY_get0_DH(const EVP_PKEY *pkey);
 OSSL_DEPRECATEDIN_3_0 struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
 #  endif
 
 #  ifndef OPENSSL_NO_EC
 struct ec_key_st;
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, struct ec_key_st *key);
 OSSL_DEPRECATEDIN_3_0
 const struct ec_key_st *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey);
 OSSL_DEPRECATEDIN_3_0
 struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
 #  endif
 # endif /* OPENSSL_NO_DEPRECATED_3_0 */
 
 EVP_PKEY *EVP_PKEY_new(void);
 int EVP_PKEY_up_ref(EVP_PKEY *pkey);
 EVP_PKEY *EVP_PKEY_dup(EVP_PKEY *pkey);
 void EVP_PKEY_free(EVP_PKEY *pkey);
 const char *EVP_PKEY_get0_description(const EVP_PKEY *pkey);
 const OSSL_PROVIDER *EVP_PKEY_get0_provider(const EVP_PKEY *key);
 
 EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
                         long length);
 int i2d_PublicKey(const EVP_PKEY *a, unsigned char **pp);
 
 
 EVP_PKEY *d2i_PrivateKey_ex(int type, EVP_PKEY **a, const unsigned char **pp,
                             long length, OSSL_LIB_CTX *libctx,
                             const char *propq);
 EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
                          long length);
 EVP_PKEY *d2i_AutoPrivateKey_ex(EVP_PKEY **a, const unsigned char **pp,
                                 long length, OSSL_LIB_CTX *libctx,
                                 const char *propq);
 EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
                              long length);
 int i2d_PrivateKey(const EVP_PKEY *a, unsigned char **pp);
 
 int i2d_KeyParams(const EVP_PKEY *a, unsigned char **pp);
 EVP_PKEY *d2i_KeyParams(int type, EVP_PKEY **a, const unsigned char **pp,
                         long length);
 int i2d_KeyParams_bio(BIO *bp, const EVP_PKEY *pkey);
 EVP_PKEY *d2i_KeyParams_bio(int type, EVP_PKEY **a, BIO *in);
 
 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode);
 int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b);
 int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b);
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
 OSSL_DEPRECATEDIN_3_0
 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
 # endif
 
 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
                           int indent, ASN1_PCTX *pctx);
 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
                            int indent, ASN1_PCTX *pctx);
 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
                           int indent, ASN1_PCTX *pctx);
 # ifndef OPENSSL_NO_STDIO
 int EVP_PKEY_print_public_fp(FILE *fp, const EVP_PKEY *pkey,
                              int indent, ASN1_PCTX *pctx);
 int EVP_PKEY_print_private_fp(FILE *fp, const EVP_PKEY *pkey,
                               int indent, ASN1_PCTX *pctx);
 int EVP_PKEY_print_params_fp(FILE *fp, const EVP_PKEY *pkey,
                              int indent, ASN1_PCTX *pctx);
 # endif
 
 int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);
 int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey,
                                      char *mdname, size_t mdname_sz);
 int EVP_PKEY_digestsign_supports_digest(EVP_PKEY *pkey, OSSL_LIB_CTX *libctx,
                                         const char *name, const char *propq);
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 /*
  * For backwards compatibility. Use EVP_PKEY_set1_encoded_public_key in
  * preference
  */
 #  define EVP_PKEY_set1_tls_encodedpoint(pkey, pt, ptlen) \
           EVP_PKEY_set1_encoded_public_key((pkey), (pt), (ptlen))
 # endif
 
 int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey,
                                      const unsigned char *pub, size_t publen);
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 /*
  * For backwards compatibility. Use EVP_PKEY_get1_encoded_public_key in
  * preference
  */
 #  define EVP_PKEY_get1_tls_encodedpoint(pkey, ppt) \
           EVP_PKEY_get1_encoded_public_key((pkey), (ppt))
 # endif
 
 size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY *pkey, unsigned char **ppub);
 
 /* calls methods */
 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 
 /* These are used by EVP_CIPHER methods */
 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 
 /* PKCS5 password based encryption */
 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
                        ASN1_TYPE *param, const EVP_CIPHER *cipher,
                        const EVP_MD *md, int en_de);
 int PKCS5_PBE_keyivgen_ex(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
                           ASN1_TYPE *param, const EVP_CIPHER *cipher,
                           const EVP_MD *md, int en_de, OSSL_LIB_CTX *libctx,
                           const char *propq);
 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
                            const unsigned char *salt, int saltlen, int iter,
                            int keylen, unsigned char *out);
 int PKCS5_PBKDF2_HMAC(const char *pass, int passlen,
                       const unsigned char *salt, int saltlen, int iter,
                       const EVP_MD *digest, int keylen, unsigned char *out);
 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
                           ASN1_TYPE *param, const EVP_CIPHER *cipher,
                           const EVP_MD *md, int en_de);
 int PKCS5_v2_PBE_keyivgen_ex(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
                              ASN1_TYPE *param, const EVP_CIPHER *cipher,
                              const EVP_MD *md, int en_de,
                              OSSL_LIB_CTX *libctx, const char *propq);
 
 #ifndef OPENSSL_NO_SCRYPT
 int EVP_PBE_scrypt(const char *pass, size_t passlen,
                    const unsigned char *salt, size_t saltlen,
                    uint64_t N, uint64_t r, uint64_t p, uint64_t maxmem,
                    unsigned char *key, size_t keylen);
 int EVP_PBE_scrypt_ex(const char *pass, size_t passlen,
                       const unsigned char *salt, size_t saltlen,
                       uint64_t N, uint64_t r, uint64_t p, uint64_t maxmem,
                       unsigned char *key, size_t keylen,
                       OSSL_LIB_CTX *ctx, const char *propq);
 
 int PKCS5_v2_scrypt_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass,
                              int passlen, ASN1_TYPE *param,
                              const EVP_CIPHER *c, const EVP_MD *md, int en_de);
 int PKCS5_v2_scrypt_keyivgen_ex(EVP_CIPHER_CTX *ctx, const char *pass,
                                 int passlen, ASN1_TYPE *param,
                                 const EVP_CIPHER *c, const EVP_MD *md, int en_de,
                                 OSSL_LIB_CTX *libctx, const char *propq);
 #endif
 
 void PKCS5_PBE_add(void);
 
 int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
                        ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
 
 int EVP_PBE_CipherInit_ex(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
                           ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de,
                           OSSL_LIB_CTX *libctx, const char *propq);
 
 /* PBE type */
 
 /* Can appear as the outermost AlgorithmIdentifier */
 # define EVP_PBE_TYPE_OUTER      0x0
 /* Is an PRF type OID */
 # define EVP_PBE_TYPE_PRF        0x1
 /* Is a PKCS#5 v2.0 KDF */
 # define EVP_PBE_TYPE_KDF        0x2
 
 int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
                          int md_nid, EVP_PBE_KEYGEN *keygen);
 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
                     EVP_PBE_KEYGEN *keygen);
 int EVP_PBE_find(int type, int pbe_nid, int *pcnid, int *pmnid,
                  EVP_PBE_KEYGEN **pkeygen);
 int EVP_PBE_find_ex(int type, int pbe_nid, int *pcnid, int *pmnid,
                     EVP_PBE_KEYGEN **pkeygen, EVP_PBE_KEYGEN_EX **pkeygen_ex);
 void EVP_PBE_cleanup(void);
 int EVP_PBE_get(int *ptype, int *ppbe_nid, size_t num);
 
 # define ASN1_PKEY_ALIAS         0x1
 # define ASN1_PKEY_DYNAMIC       0x2
 # define ASN1_PKEY_SIGPARAM_NULL 0x4
 
 # define ASN1_PKEY_CTRL_PKCS7_SIGN       0x1
 # define ASN1_PKEY_CTRL_PKCS7_ENCRYPT    0x2
 # define ASN1_PKEY_CTRL_DEFAULT_MD_NID   0x3
 # define ASN1_PKEY_CTRL_CMS_SIGN         0x5
 # define ASN1_PKEY_CTRL_CMS_ENVELOPE     0x7
 # define ASN1_PKEY_CTRL_CMS_RI_TYPE      0x8
 
 # define ASN1_PKEY_CTRL_SET1_TLS_ENCPT   0x9
 # define ASN1_PKEY_CTRL_GET1_TLS_ENCPT   0xa
 # define ASN1_PKEY_CTRL_CMS_IS_RI_TYPE_SUPPORTED 0xb
 
 int EVP_PKEY_asn1_get_count(void);
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type);
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
                                                    const char *str, int len);
 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth);
 int EVP_PKEY_asn1_add_alias(int to, int from);
 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id,
                             int *ppkey_flags, const char **pinfo,
                             const char **ppem_str,
                             const EVP_PKEY_ASN1_METHOD *ameth);
 
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(const EVP_PKEY *pkey);
 EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
                                         const char *pem_str,
                                         const char *info);
 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
                         const EVP_PKEY_ASN1_METHOD *src);
 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth);
 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
                               int (*pub_decode) (EVP_PKEY *pk,
                                                  const X509_PUBKEY *pub),
                               int (*pub_encode) (X509_PUBKEY *pub,
                                                  const EVP_PKEY *pk),
                               int (*pub_cmp) (const EVP_PKEY *a,
                                               const EVP_PKEY *b),
                               int (*pub_print) (BIO *out,
                                                 const EVP_PKEY *pkey,
                                                 int indent, ASN1_PCTX *pctx),
                               int (*pkey_size) (const EVP_PKEY *pk),
                               int (*pkey_bits) (const EVP_PKEY *pk));
 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
                                int (*priv_decode) (EVP_PKEY *pk,
                                                    const PKCS8_PRIV_KEY_INFO
                                                    *p8inf),
                                int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8,
                                                    const EVP_PKEY *pk),
                                int (*priv_print) (BIO *out,
                                                   const EVP_PKEY *pkey,
                                                   int indent,
                                                   ASN1_PCTX *pctx));
 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
                              int (*param_decode) (EVP_PKEY *pkey,
                                                   const unsigned char **pder,
                                                   int derlen),
                              int (*param_encode) (const EVP_PKEY *pkey,
                                                   unsigned char **pder),
                              int (*param_missing) (const EVP_PKEY *pk),
                              int (*param_copy) (EVP_PKEY *to,
                                                 const EVP_PKEY *from),
                              int (*param_cmp) (const EVP_PKEY *a,
                                                const EVP_PKEY *b),
                              int (*param_print) (BIO *out,
                                                  const EVP_PKEY *pkey,
                                                  int indent,
                                                  ASN1_PCTX *pctx));
 
 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
                             void (*pkey_free) (EVP_PKEY *pkey));
 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
                             int (*pkey_ctrl) (EVP_PKEY *pkey, int op,
                                               long arg1, void *arg2));
 void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
                             int (*item_verify) (EVP_MD_CTX *ctx,
                                                 const ASN1_ITEM *it,
                                                 const void *data,
                                                 const X509_ALGOR *a,
                                                 const ASN1_BIT_STRING *sig,
                                                 EVP_PKEY *pkey),
                             int (*item_sign) (EVP_MD_CTX *ctx,
                                               const ASN1_ITEM *it,
                                               const void *data,
                                               X509_ALGOR *alg1,
                                               X509_ALGOR *alg2,
                                               ASN1_BIT_STRING *sig));
 
 void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
                               int (*siginf_set) (X509_SIG_INFO *siginf,
                                                  const X509_ALGOR *alg,
                                                  const ASN1_STRING *sig));
 
 void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
                              int (*pkey_check) (const EVP_PKEY *pk));
 
 void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
                                     int (*pkey_pub_check) (const EVP_PKEY *pk));
 
 void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*pkey_param_check) (const EVP_PKEY *pk));
 
 void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
                                     int (*set_priv_key) (EVP_PKEY *pk,
                                                          const unsigned char
                                                             *priv,
                                                          size_t len));
 void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*set_pub_key) (EVP_PKEY *pk,
                                                        const unsigned char *pub,
                                                        size_t len));
 void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
                                     int (*get_priv_key) (const EVP_PKEY *pk,
                                                          unsigned char *priv,
                                                          size_t *len));
 void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*get_pub_key) (const EVP_PKEY *pk,
                                                        unsigned char *pub,
                                                        size_t *len));
 
 void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
                                      int (*pkey_security_bits) (const EVP_PKEY
                                                                 *pk));
 
 int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
 
 int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len);
 int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id);
 int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len);
 
 int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op);
 
 const char *EVP_PKEY_get0_type_name(const EVP_PKEY *key);
 
 # define EVP_PKEY_OP_UNDEFINED           0
 # define EVP_PKEY_OP_PARAMGEN            (1 << 1)
 # define EVP_PKEY_OP_KEYGEN              (1 << 2)
 # define EVP_PKEY_OP_FROMDATA            (1 << 3)
 # define EVP_PKEY_OP_SIGN                (1 << 4)
 # define EVP_PKEY_OP_VERIFY              (1 << 5)
 # define EVP_PKEY_OP_VERIFYRECOVER       (1 << 6)
 # define EVP_PKEY_OP_SIGNCTX             (1 << 7)
 # define EVP_PKEY_OP_VERIFYCTX           (1 << 8)
 # define EVP_PKEY_OP_ENCRYPT             (1 << 9)
 # define EVP_PKEY_OP_DECRYPT             (1 << 10)
 # define EVP_PKEY_OP_DERIVE              (1 << 11)
 # define EVP_PKEY_OP_ENCAPSULATE         (1 << 12)
 # define EVP_PKEY_OP_DECAPSULATE         (1 << 13)
 # define EVP_PKEY_OP_SIGNMSG             (1 << 14)
 # define EVP_PKEY_OP_VERIFYMSG           (1 << 15)
 /* Update the following when adding new EVP_PKEY_OPs */
 # define EVP_PKEY_OP_ALL                ((1 << 16) - 1)
 
 # define EVP_PKEY_OP_TYPE_SIG                                           \
     (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_SIGNMSG                             \
      | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYMSG                       \
      | EVP_PKEY_OP_VERIFYRECOVER                                        \
      | EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX)
 
 # define EVP_PKEY_OP_TYPE_CRYPT                                         \
     (EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
 
 # define EVP_PKEY_OP_TYPE_DERIVE                                        \
     (EVP_PKEY_OP_DERIVE)
 
 # define EVP_PKEY_OP_TYPE_DATA                                          \
     (EVP_PKEY_OP_FROMDATA)
 
 # define EVP_PKEY_OP_TYPE_KEM                                           \
     (EVP_PKEY_OP_ENCAPSULATE | EVP_PKEY_OP_DECAPSULATE)
 
 # define EVP_PKEY_OP_TYPE_GEN                                           \
     (EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)
 
 # define EVP_PKEY_OP_TYPE_NOGEN                                         \
     (EVP_PKEY_OP_ALL & ~EVP_PKEY_OP_TYPE_GEN)
 
 int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
                              int keylen);
 
 # define EVP_PKEY_CTRL_MD                1
 # define EVP_PKEY_CTRL_PEER_KEY          2
 # define EVP_PKEY_CTRL_SET_MAC_KEY       6
 # define EVP_PKEY_CTRL_DIGESTINIT        7
 /* Used by GOST key encryption in TLS */
 # define EVP_PKEY_CTRL_SET_IV            8
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define EVP_PKEY_CTRL_PKCS7_ENCRYPT     3
 #  define EVP_PKEY_CTRL_PKCS7_DECRYPT     4
 #  define EVP_PKEY_CTRL_PKCS7_SIGN        5
 #  define EVP_PKEY_CTRL_CMS_ENCRYPT       9
 #  define EVP_PKEY_CTRL_CMS_DECRYPT       10
 #  define EVP_PKEY_CTRL_CMS_SIGN          11
 # endif
 # define EVP_PKEY_CTRL_CIPHER            12
 # define EVP_PKEY_CTRL_GET_MD            13
 # define EVP_PKEY_CTRL_SET_DIGEST_SIZE   14
 # define EVP_PKEY_CTRL_SET1_ID           15
 # define EVP_PKEY_CTRL_GET1_ID           16
 # define EVP_PKEY_CTRL_GET1_ID_LEN       17
 
 # define EVP_PKEY_ALG_CTRL               0x1000
 
 # define EVP_PKEY_FLAG_AUTOARGLEN        2
 /*
  * Method handles all operations: don't assume any digest related defaults.
  */
 # define EVP_PKEY_FLAG_SIGCTX_CUSTOM     4
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
 OSSL_DEPRECATEDIN_3_0 EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags);
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
                                               const EVP_PKEY_METHOD *meth);
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst,
                                          const EVP_PKEY_METHOD *src);
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
 OSSL_DEPRECATEDIN_3_0 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);
 OSSL_DEPRECATEDIN_3_0 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth);
 OSSL_DEPRECATEDIN_3_0 size_t EVP_PKEY_meth_get_count(void);
 OSSL_DEPRECATEDIN_3_0 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx);
 # endif
 
 EVP_KEYMGMT *EVP_KEYMGMT_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                                const char *properties);
 int EVP_KEYMGMT_up_ref(EVP_KEYMGMT *keymgmt);
 void EVP_KEYMGMT_free(EVP_KEYMGMT *keymgmt);
 const OSSL_PROVIDER *EVP_KEYMGMT_get0_provider(const EVP_KEYMGMT *keymgmt);
 const char *EVP_KEYMGMT_get0_name(const EVP_KEYMGMT *keymgmt);
 const char *EVP_KEYMGMT_get0_description(const EVP_KEYMGMT *keymgmt);
 int EVP_KEYMGMT_is_a(const EVP_KEYMGMT *keymgmt, const char *name);
 void EVP_KEYMGMT_do_all_provided(OSSL_LIB_CTX *libctx,
                                  void (*fn)(EVP_KEYMGMT *keymgmt, void *arg),
                                  void *arg);
 int EVP_KEYMGMT_names_do_all(const EVP_KEYMGMT *keymgmt,
                              void (*fn)(const char *name, void *data),
                              void *data);
 const OSSL_PARAM *EVP_KEYMGMT_gettable_params(const EVP_KEYMGMT *keymgmt);
 const OSSL_PARAM *EVP_KEYMGMT_settable_params(const EVP_KEYMGMT *keymgmt);
 const OSSL_PARAM *EVP_KEYMGMT_gen_settable_params(const EVP_KEYMGMT *keymgmt);
 const OSSL_PARAM *EVP_KEYMGMT_gen_gettable_params(const EVP_KEYMGMT *keymgmt);
 
 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e);
 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e);
 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
                                          const char *name,
                                          const char *propquery);
 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx,
                                          EVP_PKEY *pkey, const char *propquery);
 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *ctx);
 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype);
 
 int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
 const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx);
 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params);
 const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx);
 
 int EVP_PKEY_CTX_set_algor_params(EVP_PKEY_CTX *ctx, const X509_ALGOR *alg);
 int EVP_PKEY_CTX_get_algor_params(EVP_PKEY_CTX *ctx, X509_ALGOR *alg);
 int EVP_PKEY_CTX_get_algor(EVP_PKEY_CTX *ctx, X509_ALGOR **alg);
 
 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
                       int cmd, int p1, void *p2);
 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
                           const char *value);
 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
                              int cmd, uint64_t value);
 
 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str);
 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex);
 
 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md);
 
 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx);
 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen);
 
 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e,
                                const unsigned char *key, int keylen);
 EVP_PKEY *EVP_PKEY_new_raw_private_key_ex(OSSL_LIB_CTX *libctx,
                                           const char *keytype,
                                           const char *propq,
                                           const unsigned char *priv, size_t len);
 EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e,
                                        const unsigned char *priv,
                                        size_t len);
 EVP_PKEY *EVP_PKEY_new_raw_public_key_ex(OSSL_LIB_CTX *libctx,
                                          const char *keytype, const char *propq,
                                          const unsigned char *pub, size_t len);
 EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e,
                                       const unsigned char *pub,
                                       size_t len);
 int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv,
                                  size_t *len);
 int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub,
                                 size_t *len);
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv,
                                 size_t len, const EVP_CIPHER *cipher);
 # endif
 
 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data);
 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx);
 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx);
 
 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx);
 
 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data);
 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx);
 
 int EVP_PKEY_CTX_set_signature(EVP_PKEY_CTX *pctx,
                                const unsigned char *sig, size_t siglen);
 
 void EVP_SIGNATURE_free(EVP_SIGNATURE *signature);
 int EVP_SIGNATURE_up_ref(EVP_SIGNATURE *signature);
 OSSL_PROVIDER *EVP_SIGNATURE_get0_provider(const EVP_SIGNATURE *signature);
 EVP_SIGNATURE *EVP_SIGNATURE_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                                    const char *properties);
 int EVP_SIGNATURE_is_a(const EVP_SIGNATURE *signature, const char *name);
 const char *EVP_SIGNATURE_get0_name(const EVP_SIGNATURE *signature);
 const char *EVP_SIGNATURE_get0_description(const EVP_SIGNATURE *signature);
 void EVP_SIGNATURE_do_all_provided(OSSL_LIB_CTX *libctx,
                                    void (*fn)(EVP_SIGNATURE *signature,
                                               void *data),
                                    void *data);
 int EVP_SIGNATURE_names_do_all(const EVP_SIGNATURE *signature,
                                void (*fn)(const char *name, void *data),
                                void *data);
 const OSSL_PARAM *EVP_SIGNATURE_gettable_ctx_params(const EVP_SIGNATURE *sig);
 const OSSL_PARAM *EVP_SIGNATURE_settable_ctx_params(const EVP_SIGNATURE *sig);
 
 void EVP_ASYM_CIPHER_free(EVP_ASYM_CIPHER *cipher);
 int EVP_ASYM_CIPHER_up_ref(EVP_ASYM_CIPHER *cipher);
 OSSL_PROVIDER *EVP_ASYM_CIPHER_get0_provider(const EVP_ASYM_CIPHER *cipher);
 EVP_ASYM_CIPHER *EVP_ASYM_CIPHER_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                                        const char *properties);
 int EVP_ASYM_CIPHER_is_a(const EVP_ASYM_CIPHER *cipher, const char *name);
 const char *EVP_ASYM_CIPHER_get0_name(const EVP_ASYM_CIPHER *cipher);
 const char *EVP_ASYM_CIPHER_get0_description(const EVP_ASYM_CIPHER *cipher);
 void EVP_ASYM_CIPHER_do_all_provided(OSSL_LIB_CTX *libctx,
                                      void (*fn)(EVP_ASYM_CIPHER *cipher,
                                                 void *arg),
                                      void *arg);
 int EVP_ASYM_CIPHER_names_do_all(const EVP_ASYM_CIPHER *cipher,
                                  void (*fn)(const char *name, void *data),
                                  void *data);
 const OSSL_PARAM *EVP_ASYM_CIPHER_gettable_ctx_params(const EVP_ASYM_CIPHER *ciph);
 const OSSL_PARAM *EVP_ASYM_CIPHER_settable_ctx_params(const EVP_ASYM_CIPHER *ciph);
 
 void EVP_KEM_free(EVP_KEM *wrap);
 int EVP_KEM_up_ref(EVP_KEM *wrap);
 OSSL_PROVIDER *EVP_KEM_get0_provider(const EVP_KEM *wrap);
 EVP_KEM *EVP_KEM_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                        const char *properties);
 int EVP_KEM_is_a(const EVP_KEM *wrap, const char *name);
 const char *EVP_KEM_get0_name(const EVP_KEM *wrap);
 const char *EVP_KEM_get0_description(const EVP_KEM *wrap);
 void EVP_KEM_do_all_provided(OSSL_LIB_CTX *libctx,
                              void (*fn)(EVP_KEM *wrap, void *arg), void *arg);
 int EVP_KEM_names_do_all(const EVP_KEM *wrap,
                          void (*fn)(const char *name, void *data), void *data);
 const OSSL_PARAM *EVP_KEM_gettable_ctx_params(const EVP_KEM *kem);
 const OSSL_PARAM *EVP_KEM_settable_ctx_params(const EVP_KEM *kem);
 
 int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_sign_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_sign_init_ex2(EVP_PKEY_CTX *ctx,
                            EVP_SIGNATURE *algo, const OSSL_PARAM params[]);
 int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
                   unsigned char *sig, size_t *siglen,
                   const unsigned char *tbs, size_t tbslen);
 int EVP_PKEY_sign_message_init(EVP_PKEY_CTX *ctx,
                                EVP_SIGNATURE *algo, const OSSL_PARAM params[]);
 int EVP_PKEY_sign_message_update(EVP_PKEY_CTX *ctx,
                                  const unsigned char *in, size_t inlen);
 int EVP_PKEY_sign_message_final(EVP_PKEY_CTX *ctx,
                                 unsigned char *sig, size_t *siglen);
 int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_verify_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_verify_init_ex2(EVP_PKEY_CTX *ctx,
                              EVP_SIGNATURE *algo, const OSSL_PARAM params[]);
 int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
                     const unsigned char *sig, size_t siglen,
                     const unsigned char *tbs, size_t tbslen);
 int EVP_PKEY_verify_message_init(EVP_PKEY_CTX *ctx,
                                  EVP_SIGNATURE *algo, const OSSL_PARAM params[]);
 int EVP_PKEY_verify_message_update(EVP_PKEY_CTX *ctx,
                                    const unsigned char *in, size_t inlen);
 int EVP_PKEY_verify_message_final(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_verify_recover_init_ex(EVP_PKEY_CTX *ctx,
                                     const OSSL_PARAM params[]);
 int EVP_PKEY_verify_recover_init_ex2(EVP_PKEY_CTX *ctx,
                                      EVP_SIGNATURE *algo,
                                      const OSSL_PARAM params[]);
 int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
                             unsigned char *rout, size_t *routlen,
                             const unsigned char *sig, size_t siglen);
 int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_encrypt_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
                      unsigned char *out, size_t *outlen,
                      const unsigned char *in, size_t inlen);
 int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_decrypt_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
                      unsigned char *out, size_t *outlen,
                      const unsigned char *in, size_t inlen);
 
 int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_derive_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_derive_set_peer_ex(EVP_PKEY_CTX *ctx, EVP_PKEY *peer,
                                 int validate_peer);
 int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer);
 int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
 
 int EVP_PKEY_encapsulate_init(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_auth_encapsulate_init(EVP_PKEY_CTX *ctx, EVP_PKEY *authpriv,
                                    const OSSL_PARAM params[]);
 int EVP_PKEY_encapsulate(EVP_PKEY_CTX *ctx,
                          unsigned char *wrappedkey, size_t *wrappedkeylen,
                          unsigned char *genkey, size_t *genkeylen);
 int EVP_PKEY_decapsulate_init(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
 int EVP_PKEY_auth_decapsulate_init(EVP_PKEY_CTX *ctx, EVP_PKEY *authpub,
                                    const OSSL_PARAM params[]);
 int EVP_PKEY_decapsulate(EVP_PKEY_CTX *ctx,
                          unsigned char *unwrapped, size_t *unwrappedlen,
                          const unsigned char *wrapped, size_t wrappedlen);
 typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);
 
 int EVP_PKEY_fromdata_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_fromdata(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey, int selection,
                       OSSL_PARAM param[]);
 const OSSL_PARAM *EVP_PKEY_fromdata_settable(EVP_PKEY_CTX *ctx, int selection);
 
 int EVP_PKEY_todata(const EVP_PKEY *pkey, int selection, OSSL_PARAM **params);
 int EVP_PKEY_export(const EVP_PKEY *pkey, int selection,
                     OSSL_CALLBACK *export_cb, void *export_cbarg);
 
 const OSSL_PARAM *EVP_PKEY_gettable_params(const EVP_PKEY *pkey);
 int EVP_PKEY_get_params(const EVP_PKEY *pkey, OSSL_PARAM params[]);
 int EVP_PKEY_get_int_param(const EVP_PKEY *pkey, const char *key_name,
                            int *out);
 int EVP_PKEY_get_size_t_param(const EVP_PKEY *pkey, const char *key_name,
                               size_t *out);
 int EVP_PKEY_get_bn_param(const EVP_PKEY *pkey, const char *key_name,
                           BIGNUM **bn);
 int EVP_PKEY_get_utf8_string_param(const EVP_PKEY *pkey, const char *key_name,
                                     char *str, size_t max_buf_sz, size_t *out_sz);
 int EVP_PKEY_get_octet_string_param(const EVP_PKEY *pkey, const char *key_name,
                                     unsigned char *buf, size_t max_buf_sz,
                                     size_t *out_sz);
 
 const OSSL_PARAM *EVP_PKEY_settable_params(const EVP_PKEY *pkey);
 int EVP_PKEY_set_params(EVP_PKEY *pkey, OSSL_PARAM params[]);
 int EVP_PKEY_set_int_param(EVP_PKEY *pkey, const char *key_name, int in);
 int EVP_PKEY_set_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t in);
 int EVP_PKEY_set_bn_param(EVP_PKEY *pkey, const char *key_name,
                           const BIGNUM *bn);
 int EVP_PKEY_set_utf8_string_param(EVP_PKEY *pkey, const char *key_name,
                                    const char *str);
 int EVP_PKEY_set_octet_string_param(EVP_PKEY *pkey, const char *key_name,
                                     const unsigned char *buf, size_t bsize);
 
 int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY *pkey);
 int EVP_PKEY_get_field_type(const EVP_PKEY *pkey);
 
 EVP_PKEY *EVP_PKEY_Q_keygen(OSSL_LIB_CTX *libctx, const char *propq,
                             const char *type, ...);
 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
 int EVP_PKEY_generate(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
 int EVP_PKEY_check(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_public_check(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_public_check_quick(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_param_check(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_param_check_quick(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_private_check(EVP_PKEY_CTX *ctx);
 int EVP_PKEY_pairwise_check(EVP_PKEY_CTX *ctx);
 
 # define EVP_PKEY_get_ex_new_index(l, p, newf, dupf, freef) \
     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EVP_PKEY, l, p, newf, dupf, freef)
 int EVP_PKEY_set_ex_data(EVP_PKEY *key, int idx, void *arg);
 void *EVP_PKEY_get_ex_data(const EVP_PKEY *key, int idx);
 
 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb);
 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx);
 
 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx);
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
                                              int (*init) (EVP_PKEY_CTX *ctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_copy
     (EVP_PKEY_METHOD *pmeth, int (*copy) (EVP_PKEY_CTX *dst,
                                           const EVP_PKEY_CTX *src));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_cleanup
     (EVP_PKEY_METHOD *pmeth, void (*cleanup) (EVP_PKEY_CTX *ctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_paramgen
     (EVP_PKEY_METHOD *pmeth, int (*paramgen_init) (EVP_PKEY_CTX *ctx),
      int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_keygen
     (EVP_PKEY_METHOD *pmeth, int (*keygen_init) (EVP_PKEY_CTX *ctx),
      int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_sign
     (EVP_PKEY_METHOD *pmeth, int (*sign_init) (EVP_PKEY_CTX *ctx),
      int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
                   const unsigned char *tbs, size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_verify
     (EVP_PKEY_METHOD *pmeth, int (*verify_init) (EVP_PKEY_CTX *ctx),
      int (*verify) (EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
                     const unsigned char *tbs, size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_verify_recover
     (EVP_PKEY_METHOD *pmeth, int (*verify_recover_init) (EVP_PKEY_CTX *ctx),
      int (*verify_recover) (EVP_PKEY_CTX *ctx, unsigned char *sig,
                             size_t *siglen, const unsigned char *tbs,
                             size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_signctx
     (EVP_PKEY_METHOD *pmeth, int (*signctx_init) (EVP_PKEY_CTX *ctx,
                                                   EVP_MD_CTX *mctx),
      int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
                      EVP_MD_CTX *mctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_verifyctx
     (EVP_PKEY_METHOD *pmeth, int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
                                                     EVP_MD_CTX *mctx),
      int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
                        EVP_MD_CTX *mctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_encrypt
     (EVP_PKEY_METHOD *pmeth, int (*encrypt_init) (EVP_PKEY_CTX *ctx),
      int (*encryptfn) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
                        const unsigned char *in, size_t inlen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_decrypt
     (EVP_PKEY_METHOD *pmeth, int (*decrypt_init) (EVP_PKEY_CTX *ctx),
      int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
                      const unsigned char *in, size_t inlen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_derive
     (EVP_PKEY_METHOD *pmeth, int (*derive_init) (EVP_PKEY_CTX *ctx),
      int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_ctrl
     (EVP_PKEY_METHOD *pmeth, int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
                                           void *p2),
      int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_digestsign
     (EVP_PKEY_METHOD *pmeth,
      int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
                         const unsigned char *tbs, size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_digestverify
     (EVP_PKEY_METHOD *pmeth,
      int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
                           size_t siglen, const unsigned char *tbs,
                           size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_check
     (EVP_PKEY_METHOD *pmeth, int (*check) (EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_public_check
     (EVP_PKEY_METHOD *pmeth, int (*check) (EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_param_check
     (EVP_PKEY_METHOD *pmeth, int (*check) (EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_digest_custom
     (EVP_PKEY_METHOD *pmeth, int (*digest_custom) (EVP_PKEY_CTX *ctx,
                                                    EVP_MD_CTX *mctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_init
     (const EVP_PKEY_METHOD *pmeth, int (**pinit) (EVP_PKEY_CTX *ctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_copy
     (const EVP_PKEY_METHOD *pmeth, int (**pcopy) (EVP_PKEY_CTX *dst,
                                                   const EVP_PKEY_CTX *src));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_cleanup
     (const EVP_PKEY_METHOD *pmeth, void (**pcleanup) (EVP_PKEY_CTX *ctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_paramgen
     (const EVP_PKEY_METHOD *pmeth, int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
      int (**pparamgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_keygen
     (const EVP_PKEY_METHOD *pmeth, int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
      int (**pkeygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_sign
     (const EVP_PKEY_METHOD *pmeth, int (**psign_init) (EVP_PKEY_CTX *ctx),
      int (**psign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
                     const unsigned char *tbs, size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_verify
     (const EVP_PKEY_METHOD *pmeth, int (**pverify_init) (EVP_PKEY_CTX *ctx),
      int (**pverify) (EVP_PKEY_CTX *ctx, const unsigned char *sig,
                       size_t siglen, const unsigned char *tbs, size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_verify_recover
     (const EVP_PKEY_METHOD *pmeth,
      int (**pverify_recover_init) (EVP_PKEY_CTX *ctx),
      int (**pverify_recover) (EVP_PKEY_CTX *ctx, unsigned char *sig,
                               size_t *siglen, const unsigned char *tbs,
                               size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_signctx
     (const EVP_PKEY_METHOD *pmeth,
      int (**psignctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
      int (**psignctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
                        EVP_MD_CTX *mctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_verifyctx
     (const EVP_PKEY_METHOD *pmeth,
      int (**pverifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
      int (**pverifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig,
                           int siglen, EVP_MD_CTX *mctx));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_encrypt
     (const EVP_PKEY_METHOD *pmeth, int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
      int (**pencryptfn) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
                          const unsigned char *in, size_t inlen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_decrypt
     (const EVP_PKEY_METHOD *pmeth, int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
      int (**pdecrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
                        const unsigned char *in, size_t inlen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_derive
     (const EVP_PKEY_METHOD *pmeth, int (**pderive_init) (EVP_PKEY_CTX *ctx),
      int (**pderive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_ctrl
     (const EVP_PKEY_METHOD *pmeth,
      int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2),
      int (**pctrl_str) (EVP_PKEY_CTX *ctx, const char *type,
                         const char *value));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_digestsign
     (const EVP_PKEY_METHOD *pmeth,
      int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
                          const unsigned char *tbs, size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_digestverify
     (const EVP_PKEY_METHOD *pmeth,
      int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
                            size_t siglen, const unsigned char *tbs,
                            size_t tbslen));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_check
     (const EVP_PKEY_METHOD *pmeth, int (**pcheck) (EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_public_check
     (const EVP_PKEY_METHOD *pmeth, int (**pcheck) (EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_param_check
     (const EVP_PKEY_METHOD *pmeth, int (**pcheck) (EVP_PKEY *pkey));
 OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_get_digest_custom
     (const EVP_PKEY_METHOD *pmeth,
      int (**pdigest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx));
 # endif
 
 void EVP_KEYEXCH_free(EVP_KEYEXCH *exchange);
 int EVP_KEYEXCH_up_ref(EVP_KEYEXCH *exchange);
 EVP_KEYEXCH *EVP_KEYEXCH_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
                                const char *properties);
 OSSL_PROVIDER *EVP_KEYEXCH_get0_provider(const EVP_KEYEXCH *exchange);
 int EVP_KEYEXCH_is_a(const EVP_KEYEXCH *keyexch, const char *name);
 const char *EVP_KEYEXCH_get0_name(const EVP_KEYEXCH *keyexch);
 const char *EVP_KEYEXCH_get0_description(const EVP_KEYEXCH *keyexch);
 void EVP_KEYEXCH_do_all_provided(OSSL_LIB_CTX *libctx,
                                  void (*fn)(EVP_KEYEXCH *keyexch, void *data),
                                  void *data);
 int EVP_KEYEXCH_names_do_all(const EVP_KEYEXCH *keyexch,
                              void (*fn)(const char *name, void *data),
                              void *data);
 const OSSL_PARAM *EVP_KEYEXCH_gettable_ctx_params(const EVP_KEYEXCH *keyexch);
 const OSSL_PARAM *EVP_KEYEXCH_settable_ctx_params(const EVP_KEYEXCH *keyexch);
 
 void EVP_add_alg_module(void);
 
 int EVP_PKEY_CTX_set_group_name(EVP_PKEY_CTX *ctx, const char *name);
 int EVP_PKEY_CTX_get_group_name(EVP_PKEY_CTX *ctx, char *name, size_t namelen);
 int EVP_PKEY_get_group_name(const EVP_PKEY *pkey, char *name, size_t name_sz,
                             size_t *gname_len);
 
 OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx);
 const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx);
 const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx);
 
 # ifdef  __cplusplus
 }
 # endif
 #endif