THUAI6/CAPI/cpp/grpc/include/openssl/evp.h

/*
 * Copyright 1995-2022 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 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_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 is 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_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

    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
#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_get_size(EVP_MD_CTX_get0_md(e))
#define EVP_MD_CTX_size EVP_MD_CTX_get_size
#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);
    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 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* md, size_t len);

    __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);

    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);
    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);

    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);

    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);
    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_TYPE_SIG \
    (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | 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_NOGEN \
    (EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT | EVP_PKEY_OP_DERIVE)

#define EVP_PKEY_OP_TYPE_GEN \
    (EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)

    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);

    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_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);

    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(EVP_PKEY_CTX* ctx, unsigned char* sig, size_t* siglen, const unsigned char* tbs, size_t tbslen);
    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(EVP_PKEY_CTX* ctx, const unsigned char* sig, size_t siglen, const unsigned char* tbs, size_t tbslen);
    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(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_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_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