]> WPIA git - cassiopeia.git/blobdiff - lib/openssl/include/openssl/evp.h
upd: openssl to 1.1.0
[cassiopeia.git] / lib / openssl / include / openssl / evp.h
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+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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 HEADER_ENVELOPE_H
+# define HEADER_ENVELOPE_H
+
+# include <openssl/opensslconf.h>
+# include <openssl/ossl_typ.h>
+# include <openssl/symhacks.h>
+# include <openssl/bio.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>
+
+# 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
+
+# define EVP_PKEY_NONE   NID_undef
+# define EVP_PKEY_RSA    NID_rsaEncryption
+# define EVP_PKEY_RSA2   NID_rsa
+# 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_HMAC   NID_hmac
+# define EVP_PKEY_CMAC   NID_cmac
+# define EVP_PKEY_TLS1_PRF NID_tls1_prf
+# define EVP_PKEY_HKDF   NID_hkdf
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+# 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
+EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type);
+EVP_MD *EVP_MD_meth_dup(const EVP_MD *md);
+void EVP_MD_meth_free(EVP_MD *md);
+
+int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize);
+int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize);
+int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize);
+int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags);
+int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx));
+int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx,
+                                                     const void *data,
+                                                     size_t count));
+int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx,
+                                                   unsigned char *md));
+int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to,
+                                                 const EVP_MD_CTX *from));
+int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx));
+int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd,
+                                                 int p1, void *p2));
+
+int EVP_MD_meth_get_input_blocksize(const EVP_MD *md);
+int EVP_MD_meth_get_result_size(const EVP_MD *md);
+int EVP_MD_meth_get_app_datasize(const EVP_MD *md);
+unsigned long EVP_MD_meth_get_flags(const EVP_MD *md);
+int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx);
+int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
+                                                const void *data,
+                                                size_t count);
+int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
+                                               unsigned char *md);
+int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
+                                              const EVP_MD_CTX *from);
+int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx);
+int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
+                                              int p1, void *p2);
+
+/* digest can only handle a single block */
+#  define EVP_MD_FLAG_ONESHOT     0x0001
+
+/* 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
+
+/* 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.
+ */
+
+# define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW  0x0008/* Allow use of non FIPS
+                                                * digest in FIPS mode */
+
+/*
+ * 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
+
+EVP_CIPHER *EVP_CIPHER_meth_new(int cipher_type, int block_size, int key_len);
+EVP_CIPHER *EVP_CIPHER_meth_dup(const EVP_CIPHER *cipher);
+void EVP_CIPHER_meth_free(EVP_CIPHER *cipher);
+
+int EVP_CIPHER_meth_set_iv_length(EVP_CIPHER *cipher, int iv_len);
+int EVP_CIPHER_meth_set_flags(EVP_CIPHER *cipher, unsigned long flags);
+int EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER *cipher, int ctx_size);
+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));
+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));
+int EVP_CIPHER_meth_set_cleanup(EVP_CIPHER *cipher,
+                                int (*cleanup) (EVP_CIPHER_CTX *));
+int EVP_CIPHER_meth_set_set_asn1_params(EVP_CIPHER *cipher,
+                                        int (*set_asn1_parameters) (EVP_CIPHER_CTX *,
+                                                                    ASN1_TYPE *));
+int EVP_CIPHER_meth_set_get_asn1_params(EVP_CIPHER *cipher,
+                                        int (*get_asn1_parameters) (EVP_CIPHER_CTX *,
+                                                                    ASN1_TYPE *));
+int EVP_CIPHER_meth_set_ctrl(EVP_CIPHER *cipher,
+                             int (*ctrl) (EVP_CIPHER_CTX *, int type,
+                                          int arg, void *ptr));
+
+int (*EVP_CIPHER_meth_get_init(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx,
+                                                          const unsigned char *key,
+                                                          const unsigned char *iv,
+                                                          int enc);
+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);
+int (*EVP_CIPHER_meth_get_cleanup(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *);
+int (*EVP_CIPHER_meth_get_set_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
+                                                                     ASN1_TYPE *);
+int (*EVP_CIPHER_meth_get_get_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
+                                                               ASN1_TYPE *);
+int (*EVP_CIPHER_meth_get_ctrl(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
+                                                          int type, int arg,
+                                                          void *ptr);
+
+/* 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_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
+/* Allow use default ASN1 get/set iv */
+# define         EVP_CIPH_FLAG_DEFAULT_ASN1      0x1000
+/* Buffer length in bits not bytes: CFB1 mode only */
+# define         EVP_CIPH_FLAG_LENGTH_BITS       0x2000
+/* Note if suitable for use in FIPS mode */
+# define         EVP_CIPH_FLAG_FIPS              0x4000
+/* Allow non FIPS cipher in FIPS mode */
+# define         EVP_CIPH_FLAG_NON_FIPS_ALLOW    0x8000
+/*
+ * Cipher handles any and all padding logic as well as finalisation.
+ */
+# 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
+
+/*
+ * 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
+
+/* 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
+
+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);
+
+# ifndef OPENSSL_NO_RSA
+#  define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
+                                        (char *)(rsa))
+# endif
+
+# ifndef OPENSSL_NO_DSA
+#  define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
+                                        (char *)(dsa))
+# endif
+
+# ifndef OPENSSL_NO_DH
+#  define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
+                                        (char *)(dh))
+# endif
+
+# ifndef OPENSSL_NO_EC
+#  define EVP_PKEY_assign_EC_KEY(pkey,eckey) EVP_PKEY_assign((pkey),EVP_PKEY_EC,\
+                                        (char *)(eckey))
+# 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_type(const EVP_MD *md);
+# define EVP_MD_nid(e)                   EVP_MD_type(e)
+# define EVP_MD_name(e)                  OBJ_nid2sn(EVP_MD_nid(e))
+int EVP_MD_pkey_type(const EVP_MD *md);
+int EVP_MD_size(const EVP_MD *md);
+int EVP_MD_block_size(const EVP_MD *md);
+unsigned long EVP_MD_flags(const EVP_MD *md);
+
+const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
+int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
+                                             const void *data, size_t count);
+void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
+                              int (*update) (EVP_MD_CTX *ctx,
+                                             const void *data, size_t count));
+# define EVP_MD_CTX_size(e)              EVP_MD_size(EVP_MD_CTX_md(e))
+# define EVP_MD_CTX_block_size(e)        EVP_MD_block_size(EVP_MD_CTX_md(e))
+# define EVP_MD_CTX_type(e)              EVP_MD_type(EVP_MD_CTX_md(e))
+EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx);
+void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx);
+
+int EVP_CIPHER_nid(const EVP_CIPHER *cipher);
+# define EVP_CIPHER_name(e)              OBJ_nid2sn(EVP_CIPHER_nid(e))
+int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);
+int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *cipher);
+int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);
+int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);
+unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);
+# define EVP_CIPHER_mode(e)              (EVP_CIPHER_flags(e) & EVP_CIPH_MODE)
+
+const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
+int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx);
+int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);
+int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);
+int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);
+int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);
+const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx);
+const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx);
+unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx);
+unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx);
+int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx);
+void 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_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
+# if OPENSSL_API_COMPAT < 0x10100000L
+#  define EVP_CIPHER_CTX_flags(c)       EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(c))
+# endif
+# define EVP_CIPHER_CTX_mode(c)         EVP_CIPHER_mode(EVP_CIPHER_CTX_cipher(c))
+
+# 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)
+# define EVP_DigestSignUpdate(a,b,c)     EVP_DigestUpdate(a,b,c)
+# define EVP_DigestVerifyUpdate(a,b,c)   EVP_DigestUpdate(a,b,c)
+
+# 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,(char *)md)
+# endif
+# define BIO_get_md(b,mdp)               BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
+# define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
+# define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(char *)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,(char *)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_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_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_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);
+
+#ifndef OPENSSL_NO_UI
+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);
+#endif
+
+__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_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_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_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_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
+                           unsigned int siglen, EVP_PKEY *pkey);
+
+/*__owur*/ int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                                  const EVP_MD *type, ENGINE *e,
+                                  EVP_PKEY *pkey);
+__owur int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
+                               size_t *siglen);
+
+__owur int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                                const EVP_MD *type, ENGINE *e,
+                                EVP_PKEY *pkey);
+__owur int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
+                                 size_t siglen);
+
+# ifndef OPENSSL_NO_RSA
+__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);
+# endif
+
+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, 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);
+
+# if OPENSSL_API_COMPAT < 0x10100000L
+#  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);
+
+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);
+# 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
+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_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
+
+# if OPENSSL_API_COMPAT < 0x10100000L
+#  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_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS \
+                        | OPENSSL_INIT_ADD_ALL_DIGESTS \
+                        | OPENSSL_INIT_LOAD_CONFIG, NULL)
+#  else
+#   define OpenSSL_add_all_algorithms() \
+    OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS \
+                        | OPENSSL_INIT_ADD_ALL_DIGESTS, NULL)
+#  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_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);
+
+int EVP_PKEY_decrypt_old(unsigned char *dec_key,
+                         const unsigned char *enc_key, int enc_key_len,
+                         EVP_PKEY *private_key);
+int EVP_PKEY_encrypt_old(unsigned char *enc_key,
+                         const unsigned char *key, int key_len,
+                         EVP_PKEY *pub_key);
+int EVP_PKEY_type(int type);
+int EVP_PKEY_id(const EVP_PKEY *pkey);
+int EVP_PKEY_base_id(const EVP_PKEY *pkey);
+int EVP_PKEY_bits(const EVP_PKEY *pkey);
+int EVP_PKEY_security_bits(const EVP_PKEY *pkey);
+int EVP_PKEY_size(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_assign(EVP_PKEY *pkey, int type, void *key);
+void *EVP_PKEY_get0(const EVP_PKEY *pkey);
+const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len);
+
+# ifndef OPENSSL_NO_RSA
+struct rsa_st;
+int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key);
+struct rsa_st *EVP_PKEY_get0_RSA(EVP_PKEY *pkey);
+struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
+# endif
+# ifndef OPENSSL_NO_DSA
+struct dsa_st;
+int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, struct dsa_st *key);
+struct dsa_st *EVP_PKEY_get0_DSA(EVP_PKEY *pkey);
+struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
+# endif
+# ifndef OPENSSL_NO_DH
+struct dh_st;
+int EVP_PKEY_set1_DH(EVP_PKEY *pkey, struct dh_st *key);
+struct dh_st *EVP_PKEY_get0_DH(EVP_PKEY *pkey);
+struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
+# endif
+# ifndef OPENSSL_NO_EC
+struct ec_key_st;
+int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, struct ec_key_st *key);
+struct ec_key_st *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey);
+struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
+# endif
+
+EVP_PKEY *EVP_PKEY_new(void);
+int EVP_PKEY_up_ref(EVP_PKEY *pkey);
+void EVP_PKEY_free(EVP_PKEY *pkey);
+
+EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
+                        long length);
+int i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
+
+EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
+                         long length);
+EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
+                             long length);
+int i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
+
+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_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
+
+int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
+
+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);
+
+int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);
+
+int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey,
+                                   const unsigned char *pt, size_t ptlen);
+size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt);
+
+int EVP_CIPHER_type(const EVP_CIPHER *ctx);
+
+/* 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_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);
+
+#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 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);
+#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);
+
+/* 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);
+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
+
+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,
+                                                 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,
+                                                void *asn,
+                                                X509_ALGOR *a,
+                                                ASN1_BIT_STRING *sig,
+                                                EVP_PKEY *pkey),
+                            int (*item_sign) (EVP_MD_CTX *ctx,
+                                              const ASN1_ITEM *it,
+                                              void *asn,
+                                              X509_ALGOR *alg1,
+                                              X509_ALGOR *alg2,
+                                              ASN1_BIT_STRING *sig));
+
+void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
+                                     int (*pkey_security_bits) (const EVP_PKEY
+                                                                *pk));
+
+# define EVP_PKEY_OP_UNDEFINED           0
+# define EVP_PKEY_OP_PARAMGEN            (1<<1)
+# define EVP_PKEY_OP_KEYGEN              (1<<2)
+# define EVP_PKEY_OP_SIGN                (1<<3)
+# define EVP_PKEY_OP_VERIFY              (1<<4)
+# define EVP_PKEY_OP_VERIFYRECOVER       (1<<5)
+# define EVP_PKEY_OP_SIGNCTX             (1<<6)
+# define EVP_PKEY_OP_VERIFYCTX           (1<<7)
+# define EVP_PKEY_OP_ENCRYPT             (1<<8)
+# define EVP_PKEY_OP_DECRYPT             (1<<9)
+# define EVP_PKEY_OP_DERIVE              (1<<10)
+
+# 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)
+
+# define  EVP_PKEY_CTX_set_signature_md(ctx, md) \
+                EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,  \
+                                        EVP_PKEY_CTRL_MD, 0, (void *)md)
+
+# define  EVP_PKEY_CTX_get_signature_md(ctx, pmd)        \
+                EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,  \
+                                        EVP_PKEY_CTRL_GET_MD, 0, (void *)pmd)
+
+# define  EVP_PKEY_CTX_set_mac_key(ctx, key, len)        \
+                EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_KEYGEN,  \
+                                  EVP_PKEY_CTRL_SET_MAC_KEY, len, (void *)key)
+
+# define EVP_PKEY_CTRL_MD                1
+# define EVP_PKEY_CTRL_PEER_KEY          2
+
+# 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_SET_MAC_KEY       6
+
+# define EVP_PKEY_CTRL_DIGESTINIT        7
+
+/* Used by GOST key encryption in TLS */
+# define EVP_PKEY_CTRL_SET_IV            8
+
+# define EVP_PKEY_CTRL_CMS_ENCRYPT       9
+# define EVP_PKEY_CTRL_CMS_DECRYPT       10
+# define EVP_PKEY_CTRL_CMS_SIGN          11
+
+# define EVP_PKEY_CTRL_CIPHER            12
+
+# define EVP_PKEY_CTRL_GET_MD            13
+
+# 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
+
+const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
+EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags);
+void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
+                             const EVP_PKEY_METHOD *meth);
+void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src);
+void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
+int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);
+
+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_dup(EVP_PKEY_CTX *ctx);
+void EVP_PKEY_CTX_free(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_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_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);
+
+void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data);
+void *EVP_PKEY_CTX_get_data(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_sign_init(EVP_PKEY_CTX *ctx);
+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(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(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(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(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_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer);
+int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
+
+typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);
+
+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);
+
+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);
+
+void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
+                            int (*init) (EVP_PKEY_CTX *ctx));
+
+void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
+                            int (*copy) (EVP_PKEY_CTX *dst,
+                                         EVP_PKEY_CTX *src));
+
+void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
+                               void (*cleanup) (EVP_PKEY_CTX *ctx));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+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));
+
+void EVP_PKEY_meth_get_init(EVP_PKEY_METHOD *pmeth,
+                            int (**pinit) (EVP_PKEY_CTX *ctx));
+
+void EVP_PKEY_meth_get_copy(EVP_PKEY_METHOD *pmeth,
+                            int (**pcopy) (EVP_PKEY_CTX *dst,
+                                           EVP_PKEY_CTX *src));
+
+void EVP_PKEY_meth_get_cleanup(EVP_PKEY_METHOD *pmeth,
+                               void (**pcleanup) (EVP_PKEY_CTX *ctx));
+
+void EVP_PKEY_meth_get_paramgen(EVP_PKEY_METHOD *pmeth,
+                                int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
+                                int (**pparamgen) (EVP_PKEY_CTX *ctx,
+                                                   EVP_PKEY *pkey));
+
+void EVP_PKEY_meth_get_keygen(EVP_PKEY_METHOD *pmeth,
+                              int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
+                              int (**pkeygen) (EVP_PKEY_CTX *ctx,
+                                               EVP_PKEY *pkey));
+
+void EVP_PKEY_meth_get_sign(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));
+
+void EVP_PKEY_meth_get_verify(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));
+
+void EVP_PKEY_meth_get_verify_recover(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));
+
+void EVP_PKEY_meth_get_signctx(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));
+
+void EVP_PKEY_meth_get_verifyctx(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));
+
+void EVP_PKEY_meth_get_encrypt(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));
+
+void EVP_PKEY_meth_get_decrypt(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));
+
+void EVP_PKEY_meth_get_derive(EVP_PKEY_METHOD *pmeth,
+                              int (**pderive_init) (EVP_PKEY_CTX *ctx),
+                              int (**pderive) (EVP_PKEY_CTX *ctx,
+                                               unsigned char *key,
+                                               size_t *keylen));
+
+void EVP_PKEY_meth_get_ctrl(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));
+
+void EVP_add_alg_module(void);
+
+/* BEGIN ERROR CODES */
+/*
+ * The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+
+int ERR_load_EVP_strings(void);
+
+/* Error codes for the EVP functions. */
+
+/* Function codes. */
+# define EVP_F_AESNI_INIT_KEY                             165
+# define EVP_F_AES_INIT_KEY                               133
+# define EVP_F_AES_T4_INIT_KEY                            178
+# define EVP_F_ALG_MODULE_INIT                            177
+# define EVP_F_CAMELLIA_INIT_KEY                          159
+# define EVP_F_CHACHA20_POLY1305_CTRL                     182
+# define EVP_F_CMLL_T4_INIT_KEY                           179
+# define EVP_F_DO_SIGVER_INIT                             161
+# define EVP_F_EVP_CIPHERINIT_EX                          123
+# define EVP_F_EVP_CIPHER_CTX_COPY                        163
+# define EVP_F_EVP_CIPHER_CTX_CTRL                        124
+# define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH              122
+# define EVP_F_EVP_DECRYPTFINAL_EX                        101
+# define EVP_F_EVP_DECRYPTUPDATE                          166
+# define EVP_F_EVP_DIGESTINIT_EX                          128
+# define EVP_F_EVP_ENCRYPTFINAL_EX                        127
+# define EVP_F_EVP_ENCRYPTUPDATE                          167
+# define EVP_F_EVP_MD_CTX_COPY_EX                         110
+# define EVP_F_EVP_MD_SIZE                                162
+# define EVP_F_EVP_OPENINIT                               102
+# define EVP_F_EVP_PBE_ALG_ADD                            115
+# define EVP_F_EVP_PBE_ALG_ADD_TYPE                       160
+# define EVP_F_EVP_PBE_CIPHERINIT                         116
+# define EVP_F_EVP_PBE_SCRYPT                             181
+# define EVP_F_EVP_PKCS82PKEY                             111
+# define EVP_F_EVP_PKEY2PKCS8                             113
+# define EVP_F_EVP_PKEY_COPY_PARAMETERS                   103
+# define EVP_F_EVP_PKEY_CTX_CTRL                          137
+# define EVP_F_EVP_PKEY_CTX_CTRL_STR                      150
+# define EVP_F_EVP_PKEY_CTX_DUP                           156
+# define EVP_F_EVP_PKEY_DECRYPT                           104
+# define EVP_F_EVP_PKEY_DECRYPT_INIT                      138
+# define EVP_F_EVP_PKEY_DECRYPT_OLD                       151
+# define EVP_F_EVP_PKEY_DERIVE                            153
+# define EVP_F_EVP_PKEY_DERIVE_INIT                       154
+# define EVP_F_EVP_PKEY_DERIVE_SET_PEER                   155
+# define EVP_F_EVP_PKEY_ENCRYPT                           105
+# define EVP_F_EVP_PKEY_ENCRYPT_INIT                      139
+# define EVP_F_EVP_PKEY_ENCRYPT_OLD                       152
+# define EVP_F_EVP_PKEY_GET0_DH                           119
+# define EVP_F_EVP_PKEY_GET0_DSA                          120
+# define EVP_F_EVP_PKEY_GET0_EC_KEY                       131
+# define EVP_F_EVP_PKEY_GET0_HMAC                         183
+# define EVP_F_EVP_PKEY_GET0_RSA                          121
+# define EVP_F_EVP_PKEY_KEYGEN                            146
+# define EVP_F_EVP_PKEY_KEYGEN_INIT                       147
+# define EVP_F_EVP_PKEY_NEW                               106
+# define EVP_F_EVP_PKEY_PARAMGEN                          148
+# define EVP_F_EVP_PKEY_PARAMGEN_INIT                     149
+# define EVP_F_EVP_PKEY_SIGN                              140
+# define EVP_F_EVP_PKEY_SIGN_INIT                         141
+# define EVP_F_EVP_PKEY_VERIFY                            142
+# define EVP_F_EVP_PKEY_VERIFY_INIT                       143
+# define EVP_F_EVP_PKEY_VERIFY_RECOVER                    144
+# define EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT               145
+# define EVP_F_EVP_SIGNFINAL                              107
+# define EVP_F_EVP_VERIFYFINAL                            108
+# define EVP_F_INT_CTX_NEW                                157
+# define EVP_F_PKCS5_PBE_KEYIVGEN                         117
+# define EVP_F_PKCS5_V2_PBE_KEYIVGEN                      118
+# define EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN                   164
+# define EVP_F_PKCS5_V2_SCRYPT_KEYIVGEN                   180
+# define EVP_F_PKEY_SET_TYPE                              158
+# define EVP_F_RC2_MAGIC_TO_METH                          109
+# define EVP_F_RC5_CTRL                                   125
+
+/* Reason codes. */
+# define EVP_R_AES_KEY_SETUP_FAILED                       143
+# define EVP_R_BAD_DECRYPT                                100
+# define EVP_R_BUFFER_TOO_SMALL                           155
+# define EVP_R_CAMELLIA_KEY_SETUP_FAILED                  157
+# define EVP_R_CIPHER_PARAMETER_ERROR                     122
+# define EVP_R_COMMAND_NOT_SUPPORTED                      147
+# define EVP_R_COPY_ERROR                                 173
+# define EVP_R_CTRL_NOT_IMPLEMENTED                       132
+# define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED             133
+# define EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH          138
+# define EVP_R_DECODE_ERROR                               114
+# define EVP_R_DIFFERENT_KEY_TYPES                        101
+# define EVP_R_DIFFERENT_PARAMETERS                       153
+# define EVP_R_ERROR_LOADING_SECTION                      165
+# define EVP_R_ERROR_SETTING_FIPS_MODE                    166
+# define EVP_R_EXPECTING_AN_HMAC_KEY                      174
+# define EVP_R_EXPECTING_AN_RSA_KEY                       127
+# define EVP_R_EXPECTING_A_DH_KEY                         128
+# define EVP_R_EXPECTING_A_DSA_KEY                        129
+# define EVP_R_EXPECTING_A_EC_KEY                         142
+# define EVP_R_FIPS_MODE_NOT_SUPPORTED                    167
+# define EVP_R_ILLEGAL_SCRYPT_PARAMETERS                  171
+# define EVP_R_INITIALIZATION_ERROR                       134
+# define EVP_R_INPUT_NOT_INITIALIZED                      111
+# define EVP_R_INVALID_DIGEST                             152
+# define EVP_R_INVALID_FIPS_MODE                          168
+# define EVP_R_INVALID_KEY_LENGTH                         130
+# define EVP_R_INVALID_OPERATION                          148
+# define EVP_R_KEYGEN_FAILURE                             120
+# define EVP_R_MEMORY_LIMIT_EXCEEDED                      172
+# define EVP_R_MESSAGE_DIGEST_IS_NULL                     159
+# define EVP_R_METHOD_NOT_SUPPORTED                       144
+# define EVP_R_MISSING_PARAMETERS                         103
+# define EVP_R_NO_CIPHER_SET                              131
+# define EVP_R_NO_DEFAULT_DIGEST                          158
+# define EVP_R_NO_DIGEST_SET                              139
+# define EVP_R_NO_KEY_SET                                 154
+# define EVP_R_NO_OPERATION_SET                           149
+# define EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE   150
+# define EVP_R_OPERATON_NOT_INITIALIZED                   151
+# define EVP_R_PARTIALLY_OVERLAPPING                      162
+# define EVP_R_PRIVATE_KEY_DECODE_ERROR                   145
+# define EVP_R_PRIVATE_KEY_ENCODE_ERROR                   146
+# define EVP_R_PUBLIC_KEY_NOT_RSA                         106
+# define EVP_R_UNKNOWN_CIPHER                             160
+# define EVP_R_UNKNOWN_DIGEST                             161
+# define EVP_R_UNKNOWN_OPTION                             169
+# define EVP_R_UNKNOWN_PBE_ALGORITHM                      121
+# define EVP_R_UNSUPPORTED_NUMBER_OF_ROUNDS               135
+# define EVP_R_UNSUPPORTED_ALGORITHM                      156
+# define EVP_R_UNSUPPORTED_CIPHER                         107
+# define EVP_R_UNSUPPORTED_KEYLENGTH                      123
+# define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION        124
+# define EVP_R_UNSUPPORTED_KEY_SIZE                       108
+# define EVP_R_UNSUPPORTED_PRF                            125
+# define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM          118
+# define EVP_R_UNSUPPORTED_SALT_TYPE                      126
+# define EVP_R_WRAP_MODE_NOT_ALLOWED                      170
+# define EVP_R_WRONG_FINAL_BLOCK_LENGTH                   109
+
+# ifdef  __cplusplus
+}
+# endif
+#endif