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      1 /* crypto/evp/evp.h */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) cryptsoft.com).
      7  * The implementation was written so as to conform with Netscapes SSL.
      8  *
      9  * This library is free for commercial and non-commercial use as long as
     10  * the following conditions are aheared to.  The following conditions
     11  * apply to all code found in this distribution, be it the RC4, RSA,
     12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     13  * included with this distribution is covered by the same copyright terms
     14  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     15  *
     16  * Copyright remains Eric Young's, and as such any Copyright notices in
     17  * the code are not to be removed.
     18  * If this package is used in a product, Eric Young should be given attribution
     19  * as the author of the parts of the library used.
     20  * This can be in the form of a textual message at program startup or
     21  * in documentation (online or textual) provided with the package.
     22  *
     23  * Redistribution and use in source and binary forms, with or without
     24  * modification, are permitted provided that the following conditions
     25  * are met:
     26  * 1. Redistributions of source code must retain the copyright
     27  *    notice, this list of conditions and the following disclaimer.
     28  * 2. Redistributions in binary form must reproduce the above copyright
     29  *    notice, this list of conditions and the following disclaimer in the
     30  *    documentation and/or other materials provided with the distribution.
     31  * 3. All advertising materials mentioning features or use of this software
     32  *    must display the following acknowledgement:
     33  *    "This product includes cryptographic software written by
     34  *     Eric Young (eay (at) cryptsoft.com)"
     35  *    The word 'cryptographic' can be left out if the rouines from the library
     36  *    being used are not cryptographic related :-).
     37  * 4. If you include any Windows specific code (or a derivative thereof) from
     38  *    the apps directory (application code) you must include an acknowledgement:
     39  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     40  *
     41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     51  * SUCH DAMAGE.
     52  *
     53  * The licence and distribution terms for any publically available version or
     54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     55  * copied and put under another distribution licence
     56  * [including the GNU Public Licence.]
     57  */
     58 
     59 #ifndef HEADER_ENVELOPE_H
     60 # define HEADER_ENVELOPE_H
     61 
     62 # ifdef OPENSSL_ALGORITHM_DEFINES
     63 #  include <openssl/opensslconf.h>
     64 # else
     65 #  define OPENSSL_ALGORITHM_DEFINES
     66 #  include <openssl/opensslconf.h>
     67 #  undef OPENSSL_ALGORITHM_DEFINES
     68 # endif
     69 
     70 # include <openssl/ossl_typ.h>
     71 
     72 # include <openssl/symhacks.h>
     73 
     74 # ifndef OPENSSL_NO_BIO
     75 #  include <openssl/bio.h>
     76 # endif
     77 
     78 /*-
     79 #define EVP_RC2_KEY_SIZE                16
     80 #define EVP_RC4_KEY_SIZE                16
     81 #define EVP_BLOWFISH_KEY_SIZE           16
     82 #define EVP_CAST5_KEY_SIZE              16
     83 #define EVP_RC5_32_12_16_KEY_SIZE       16
     84 */
     85 # define EVP_MAX_MD_SIZE                 64/* longest known is SHA512 */
     86 # define EVP_MAX_KEY_LENGTH              64
     87 # define EVP_MAX_IV_LENGTH               16
     88 # define EVP_MAX_BLOCK_LENGTH            32
     89 
     90 # define PKCS5_SALT_LEN                  8
     91 /* Default PKCS#5 iteration count */
     92 # define PKCS5_DEFAULT_ITER              2048
     93 
     94 # include <openssl/objects.h>
     95 
     96 # define EVP_PK_RSA      0x0001
     97 # define EVP_PK_DSA      0x0002
     98 # define EVP_PK_DH       0x0004
     99 # define EVP_PK_EC       0x0008
    100 # define EVP_PKT_SIGN    0x0010
    101 # define EVP_PKT_ENC     0x0020
    102 # define EVP_PKT_EXCH    0x0040
    103 # define EVP_PKS_RSA     0x0100
    104 # define EVP_PKS_DSA     0x0200
    105 # define EVP_PKS_EC      0x0400
    106 
    107 # define EVP_PKEY_NONE   NID_undef
    108 # define EVP_PKEY_RSA    NID_rsaEncryption
    109 # define EVP_PKEY_RSA2   NID_rsa
    110 # define EVP_PKEY_DSA    NID_dsa
    111 # define EVP_PKEY_DSA1   NID_dsa_2
    112 # define EVP_PKEY_DSA2   NID_dsaWithSHA
    113 # define EVP_PKEY_DSA3   NID_dsaWithSHA1
    114 # define EVP_PKEY_DSA4   NID_dsaWithSHA1_2
    115 # define EVP_PKEY_DH     NID_dhKeyAgreement
    116 # define EVP_PKEY_DHX    NID_dhpublicnumber
    117 # define EVP_PKEY_EC     NID_X9_62_id_ecPublicKey
    118 # define EVP_PKEY_HMAC   NID_hmac
    119 # define EVP_PKEY_CMAC   NID_cmac
    120 
    121 #ifdef  __cplusplus
    122 extern "C" {
    123 #endif
    124 
    125 /*
    126  * Type needs to be a bit field Sub-type needs to be for variations on the
    127  * method, as in, can it do arbitrary encryption....
    128  */
    129 struct evp_pkey_st {
    130     int type;
    131     int save_type;
    132     int references;
    133     const EVP_PKEY_ASN1_METHOD *ameth;
    134     ENGINE *engine;
    135     union {
    136         char *ptr;
    137 # ifndef OPENSSL_NO_RSA
    138         struct rsa_st *rsa;     /* RSA */
    139 # endif
    140 # ifndef OPENSSL_NO_DSA
    141         struct dsa_st *dsa;     /* DSA */
    142 # endif
    143 # ifndef OPENSSL_NO_DH
    144         struct dh_st *dh;       /* DH */
    145 # endif
    146 # ifndef OPENSSL_NO_EC
    147         struct ec_key_st *ec;   /* ECC */
    148 # endif
    149     } pkey;
    150     int save_parameters;
    151     STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
    152 } /* EVP_PKEY */ ;
    153 
    154 # define EVP_PKEY_MO_SIGN        0x0001
    155 # define EVP_PKEY_MO_VERIFY      0x0002
    156 # define EVP_PKEY_MO_ENCRYPT     0x0004
    157 # define EVP_PKEY_MO_DECRYPT     0x0008
    158 
    159 # ifndef EVP_MD
    160 struct env_md_st {
    161     int type;
    162     int pkey_type;
    163     int md_size;
    164     unsigned long flags;
    165     int (*init) (EVP_MD_CTX *ctx);
    166     int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
    167     int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
    168     int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
    169     int (*cleanup) (EVP_MD_CTX *ctx);
    170     /* FIXME: prototype these some day */
    171     int (*sign) (int type, const unsigned char *m, unsigned int m_length,
    172                  unsigned char *sigret, unsigned int *siglen, void *key);
    173     int (*verify) (int type, const unsigned char *m, unsigned int m_length,
    174                    const unsigned char *sigbuf, unsigned int siglen,
    175                    void *key);
    176     int required_pkey_type[5];  /* EVP_PKEY_xxx */
    177     int block_size;
    178     int ctx_size;               /* how big does the ctx->md_data need to be */
    179     /* control function */
    180     int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
    181 } /* EVP_MD */ ;
    182 
    183 typedef int evp_sign_method(int type, const unsigned char *m,
    184                             unsigned int m_length, unsigned char *sigret,
    185                             unsigned int *siglen, void *key);
    186 typedef int evp_verify_method(int type, const unsigned char *m,
    187                               unsigned int m_length,
    188                               const unsigned char *sigbuf,
    189                               unsigned int siglen, void *key);
    190 
    191 /* digest can only handle a single block */
    192 #  define EVP_MD_FLAG_ONESHOT     0x0001
    193 
    194 /*
    195  * digest is a "clone" digest used
    196  * which is a copy of an existing
    197  * one for a specific public key type.
    198  * EVP_dss1() etc
    199  */
    200 #  define EVP_MD_FLAG_PKEY_DIGEST 0x0002
    201 
    202 /* Digest uses EVP_PKEY_METHOD for signing instead of MD specific signing */
    203 
    204 #  define EVP_MD_FLAG_PKEY_METHOD_SIGNATURE       0x0004
    205 
    206 /* DigestAlgorithmIdentifier flags... */
    207 
    208 #  define EVP_MD_FLAG_DIGALGID_MASK               0x0018
    209 
    210 /* NULL or absent parameter accepted. Use NULL */
    211 
    212 #  define EVP_MD_FLAG_DIGALGID_NULL               0x0000
    213 
    214 /* NULL or absent parameter accepted. Use NULL for PKCS#1 otherwise absent */
    215 
    216 #  define EVP_MD_FLAG_DIGALGID_ABSENT             0x0008
    217 
    218 /* Custom handling via ctrl */
    219 
    220 #  define EVP_MD_FLAG_DIGALGID_CUSTOM             0x0018
    221 
    222 /* Note if suitable for use in FIPS mode */
    223 #  define EVP_MD_FLAG_FIPS        0x0400
    224 
    225 /* Digest ctrls */
    226 
    227 #  define EVP_MD_CTRL_DIGALGID                    0x1
    228 #  define EVP_MD_CTRL_MICALG                      0x2
    229 
    230 /* Minimum Algorithm specific ctrl value */
    231 
    232 #  define EVP_MD_CTRL_ALG_CTRL                    0x1000
    233 
    234 #  define EVP_PKEY_NULL_method    NULL,NULL,{0,0,0,0}
    235 
    236 #  ifndef OPENSSL_NO_DSA
    237 #   define EVP_PKEY_DSA_method     (evp_sign_method *)DSA_sign, \
    238                                 (evp_verify_method *)DSA_verify, \
    239                                 {EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
    240                                         EVP_PKEY_DSA4,0}
    241 #  else
    242 #   define EVP_PKEY_DSA_method     EVP_PKEY_NULL_method
    243 #  endif
    244 
    245 #  ifndef OPENSSL_NO_ECDSA
    246 #   define EVP_PKEY_ECDSA_method   (evp_sign_method *)ECDSA_sign, \
    247                                 (evp_verify_method *)ECDSA_verify, \
    248                                  {EVP_PKEY_EC,0,0,0}
    249 #  else
    250 #   define EVP_PKEY_ECDSA_method   EVP_PKEY_NULL_method
    251 #  endif
    252 
    253 #  ifndef OPENSSL_NO_RSA
    254 #   define EVP_PKEY_RSA_method     (evp_sign_method *)RSA_sign, \
    255                                 (evp_verify_method *)RSA_verify, \
    256                                 {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
    257 #   define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
    258                                 (evp_sign_method *)RSA_sign_ASN1_OCTET_STRING, \
    259                                 (evp_verify_method *)RSA_verify_ASN1_OCTET_STRING, \
    260                                 {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
    261 #  else
    262 #   define EVP_PKEY_RSA_method     EVP_PKEY_NULL_method
    263 #   define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
    264 #  endif
    265 
    266 # endif                         /* !EVP_MD */
    267 
    268 struct env_md_ctx_st {
    269     const EVP_MD *digest;
    270     ENGINE *engine;             /* functional reference if 'digest' is
    271                                  * ENGINE-provided */
    272     unsigned long flags;
    273     void *md_data;
    274     /* Public key context for sign/verify */
    275     EVP_PKEY_CTX *pctx;
    276     /* Update function: usually copied from EVP_MD */
    277     int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
    278 } /* EVP_MD_CTX */ ;
    279 
    280 /* values for EVP_MD_CTX flags */
    281 
    282 # define EVP_MD_CTX_FLAG_ONESHOT         0x0001/* digest update will be
    283                                                 * called once only */
    284 # define EVP_MD_CTX_FLAG_CLEANED         0x0002/* context has already been
    285                                                 * cleaned */
    286 # define EVP_MD_CTX_FLAG_REUSE           0x0004/* Don't free up ctx->md_data
    287                                                 * in EVP_MD_CTX_cleanup */
    288 /*
    289  * FIPS and pad options are ignored in 1.0.0, definitions are here so we
    290  * don't accidentally reuse the values for other purposes.
    291  */
    292 
    293 # define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW  0x0008/* Allow use of non FIPS
    294                                                 * digest in FIPS mode */
    295 
    296 /*
    297  * The following PAD options are also currently ignored in 1.0.0, digest
    298  * parameters are handled through EVP_DigestSign*() and EVP_DigestVerify*()
    299  * instead.
    300  */
    301 # define EVP_MD_CTX_FLAG_PAD_MASK        0xF0/* RSA mode to use */
    302 # define EVP_MD_CTX_FLAG_PAD_PKCS1       0x00/* PKCS#1 v1.5 mode */
    303 # define EVP_MD_CTX_FLAG_PAD_X931        0x10/* X9.31 mode */
    304 # define EVP_MD_CTX_FLAG_PAD_PSS         0x20/* PSS mode */
    305 
    306 # define EVP_MD_CTX_FLAG_NO_INIT         0x0100/* Don't initialize md_data */
    307 
    308 struct evp_cipher_st {
    309     int nid;
    310     int block_size;
    311     /* Default value for variable length ciphers */
    312     int key_len;
    313     int iv_len;
    314     /* Various flags */
    315     unsigned long flags;
    316     /* init key */
    317     int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
    318                  const unsigned char *iv, int enc);
    319     /* encrypt/decrypt data */
    320     int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
    321                       const unsigned char *in, size_t inl);
    322     /* cleanup ctx */
    323     int (*cleanup) (EVP_CIPHER_CTX *);
    324     /* how big ctx->cipher_data needs to be */
    325     int ctx_size;
    326     /* Populate a ASN1_TYPE with parameters */
    327     int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
    328     /* Get parameters from a ASN1_TYPE */
    329     int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
    330     /* Miscellaneous operations */
    331     int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
    332     /* Application data */
    333     void *app_data;
    334 } /* EVP_CIPHER */ ;
    335 
    336 /* Values for cipher flags */
    337 
    338 /* Modes for ciphers */
    339 
    340 # define         EVP_CIPH_STREAM_CIPHER          0x0
    341 # define         EVP_CIPH_ECB_MODE               0x1
    342 # define         EVP_CIPH_CBC_MODE               0x2
    343 # define         EVP_CIPH_CFB_MODE               0x3
    344 # define         EVP_CIPH_OFB_MODE               0x4
    345 # define         EVP_CIPH_CTR_MODE               0x5
    346 # define         EVP_CIPH_GCM_MODE               0x6
    347 # define         EVP_CIPH_CCM_MODE               0x7
    348 # define         EVP_CIPH_XTS_MODE               0x10001
    349 # define         EVP_CIPH_WRAP_MODE              0x10002
    350 # define         EVP_CIPH_MODE                   0xF0007
    351 /* Set if variable length cipher */
    352 # define         EVP_CIPH_VARIABLE_LENGTH        0x8
    353 /* Set if the iv handling should be done by the cipher itself */
    354 # define         EVP_CIPH_CUSTOM_IV              0x10
    355 /* Set if the cipher's init() function should be called if key is NULL */
    356 # define         EVP_CIPH_ALWAYS_CALL_INIT       0x20
    357 /* Call ctrl() to init cipher parameters */
    358 # define         EVP_CIPH_CTRL_INIT              0x40
    359 /* Don't use standard key length function */
    360 # define         EVP_CIPH_CUSTOM_KEY_LENGTH      0x80
    361 /* Don't use standard block padding */
    362 # define         EVP_CIPH_NO_PADDING             0x100
    363 /* cipher handles random key generation */
    364 # define         EVP_CIPH_RAND_KEY               0x200
    365 /* cipher has its own additional copying logic */
    366 # define         EVP_CIPH_CUSTOM_COPY            0x400
    367 /* Allow use default ASN1 get/set iv */
    368 # define         EVP_CIPH_FLAG_DEFAULT_ASN1      0x1000
    369 /* Buffer length in bits not bytes: CFB1 mode only */
    370 # define         EVP_CIPH_FLAG_LENGTH_BITS       0x2000
    371 /* Note if suitable for use in FIPS mode */
    372 # define         EVP_CIPH_FLAG_FIPS              0x4000
    373 /* Allow non FIPS cipher in FIPS mode */
    374 # define         EVP_CIPH_FLAG_NON_FIPS_ALLOW    0x8000
    375 /*
    376  * Cipher handles any and all padding logic as well as finalisation.
    377  */
    378 # define         EVP_CIPH_FLAG_CUSTOM_CIPHER     0x100000
    379 # define         EVP_CIPH_FLAG_AEAD_CIPHER       0x200000
    380 # define         EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0x400000
    381 
    382 /*
    383  * Cipher context flag to indicate we can handle wrap mode: if allowed in
    384  * older applications it could overflow buffers.
    385  */
    386 
    387 # define         EVP_CIPHER_CTX_FLAG_WRAP_ALLOW  0x1
    388 
    389 /* ctrl() values */
    390 
    391 # define         EVP_CTRL_INIT                   0x0
    392 # define         EVP_CTRL_SET_KEY_LENGTH         0x1
    393 # define         EVP_CTRL_GET_RC2_KEY_BITS       0x2
    394 # define         EVP_CTRL_SET_RC2_KEY_BITS       0x3
    395 # define         EVP_CTRL_GET_RC5_ROUNDS         0x4
    396 # define         EVP_CTRL_SET_RC5_ROUNDS         0x5
    397 # define         EVP_CTRL_RAND_KEY               0x6
    398 # define         EVP_CTRL_PBE_PRF_NID            0x7
    399 # define         EVP_CTRL_COPY                   0x8
    400 # define         EVP_CTRL_GCM_SET_IVLEN          0x9
    401 # define         EVP_CTRL_GCM_GET_TAG            0x10
    402 # define         EVP_CTRL_GCM_SET_TAG            0x11
    403 # define         EVP_CTRL_GCM_SET_IV_FIXED       0x12
    404 # define         EVP_CTRL_GCM_IV_GEN             0x13
    405 # define         EVP_CTRL_CCM_SET_IVLEN          EVP_CTRL_GCM_SET_IVLEN
    406 # define         EVP_CTRL_CCM_GET_TAG            EVP_CTRL_GCM_GET_TAG
    407 # define         EVP_CTRL_CCM_SET_TAG            EVP_CTRL_GCM_SET_TAG
    408 # define         EVP_CTRL_CCM_SET_L              0x14
    409 # define         EVP_CTRL_CCM_SET_MSGLEN         0x15
    410 /*
    411  * AEAD cipher deduces payload length and returns number of bytes required to
    412  * store MAC and eventual padding. Subsequent call to EVP_Cipher even
    413  * appends/verifies MAC.
    414  */
    415 # define         EVP_CTRL_AEAD_TLS1_AAD          0x16
    416 /* Used by composite AEAD ciphers, no-op in GCM, CCM... */
    417 # define         EVP_CTRL_AEAD_SET_MAC_KEY       0x17
    418 /* Set the GCM invocation field, decrypt only */
    419 # define         EVP_CTRL_GCM_SET_IV_INV         0x18
    420 
    421 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_AAD  0x19
    422 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT      0x1a
    423 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT      0x1b
    424 # define         EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE  0x1c
    425 
    426 /* RFC 5246 defines additional data to be 13 bytes in length */
    427 # define         EVP_AEAD_TLS1_AAD_LEN           13
    428 
    429 typedef struct {
    430     unsigned char *out;
    431     const unsigned char *inp;
    432     size_t len;
    433     unsigned int interleave;
    434 } EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM;
    435 
    436 /* GCM TLS constants */
    437 /* Length of fixed part of IV derived from PRF */
    438 # define EVP_GCM_TLS_FIXED_IV_LEN                        4
    439 /* Length of explicit part of IV part of TLS records */
    440 # define EVP_GCM_TLS_EXPLICIT_IV_LEN                     8
    441 /* Length of tag for TLS */
    442 # define EVP_GCM_TLS_TAG_LEN                             16
    443 
    444 typedef struct evp_cipher_info_st {
    445     const EVP_CIPHER *cipher;
    446     unsigned char iv[EVP_MAX_IV_LENGTH];
    447 } EVP_CIPHER_INFO;
    448 
    449 struct evp_cipher_ctx_st {
    450     const EVP_CIPHER *cipher;
    451     ENGINE *engine;             /* functional reference if 'cipher' is
    452                                  * ENGINE-provided */
    453     int encrypt;                /* encrypt or decrypt */
    454     int buf_len;                /* number we have left */
    455     unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */
    456     unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */
    457     unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */
    458     int num;                    /* used by cfb/ofb/ctr mode */
    459     void *app_data;             /* application stuff */
    460     int key_len;                /* May change for variable length cipher */
    461     unsigned long flags;        /* Various flags */
    462     void *cipher_data;          /* per EVP data */
    463     int final_used;
    464     int block_mask;
    465     unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */
    466 } /* EVP_CIPHER_CTX */ ;
    467 
    468 typedef struct evp_Encode_Ctx_st {
    469     /* number saved in a partial encode/decode */
    470     int num;
    471     /*
    472      * The length is either the output line length (in input bytes) or the
    473      * shortest input line length that is ok.  Once decoding begins, the
    474      * length is adjusted up each time a longer line is decoded
    475      */
    476     int length;
    477     /* data to encode */
    478     unsigned char enc_data[80];
    479     /* number read on current line */
    480     int line_num;
    481     int expect_nl;
    482 } EVP_ENCODE_CTX;
    483 
    484 /* Password based encryption function */
    485 typedef int (EVP_PBE_KEYGEN) (EVP_CIPHER_CTX *ctx, const char *pass,
    486                               int passlen, ASN1_TYPE *param,
    487                               const EVP_CIPHER *cipher, const EVP_MD *md,
    488                               int en_de);
    489 
    490 # ifndef OPENSSL_NO_RSA
    491 #  define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
    492                                         (char *)(rsa))
    493 # endif
    494 
    495 # ifndef OPENSSL_NO_DSA
    496 #  define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
    497                                         (char *)(dsa))
    498 # endif
    499 
    500 # ifndef OPENSSL_NO_DH
    501 #  define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
    502                                         (char *)(dh))
    503 # endif
    504 
    505 # ifndef OPENSSL_NO_EC
    506 #  define EVP_PKEY_assign_EC_KEY(pkey,eckey) EVP_PKEY_assign((pkey),EVP_PKEY_EC,\
    507                                         (char *)(eckey))
    508 # endif
    509 
    510 /* Add some extra combinations */
    511 # define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
    512 # define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
    513 # define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
    514 # define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
    515 
    516 int EVP_MD_type(const EVP_MD *md);
    517 # define EVP_MD_nid(e)                   EVP_MD_type(e)
    518 # define EVP_MD_name(e)                  OBJ_nid2sn(EVP_MD_nid(e))
    519 int EVP_MD_pkey_type(const EVP_MD *md);
    520 int EVP_MD_size(const EVP_MD *md);
    521 int EVP_MD_block_size(const EVP_MD *md);
    522 unsigned long EVP_MD_flags(const EVP_MD *md);
    523 
    524 const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
    525 # define EVP_MD_CTX_size(e)              EVP_MD_size(EVP_MD_CTX_md(e))
    526 # define EVP_MD_CTX_block_size(e)        EVP_MD_block_size(EVP_MD_CTX_md(e))
    527 # define EVP_MD_CTX_type(e)              EVP_MD_type(EVP_MD_CTX_md(e))
    528 
    529 int EVP_CIPHER_nid(const EVP_CIPHER *cipher);
    530 # define EVP_CIPHER_name(e)              OBJ_nid2sn(EVP_CIPHER_nid(e))
    531 int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);
    532 int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);
    533 int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);
    534 unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);
    535 # define EVP_CIPHER_mode(e)              (EVP_CIPHER_flags(e) & EVP_CIPH_MODE)
    536 
    537 const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
    538 int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);
    539 int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);
    540 int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);
    541 int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);
    542 int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in);
    543 void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
    544 void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
    545 # define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
    546 unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx);
    547 # define EVP_CIPHER_CTX_mode(e)          (EVP_CIPHER_CTX_flags(e) & EVP_CIPH_MODE)
    548 
    549 # define EVP_ENCODE_LENGTH(l)    (((l+2)/3*4)+(l/48+1)*2+80)
    550 # define EVP_DECODE_LENGTH(l)    ((l+3)/4*3+80)
    551 
    552 # define EVP_SignInit_ex(a,b,c)          EVP_DigestInit_ex(a,b,c)
    553 # define EVP_SignInit(a,b)               EVP_DigestInit(a,b)
    554 # define EVP_SignUpdate(a,b,c)           EVP_DigestUpdate(a,b,c)
    555 # define EVP_VerifyInit_ex(a,b,c)        EVP_DigestInit_ex(a,b,c)
    556 # define EVP_VerifyInit(a,b)             EVP_DigestInit(a,b)
    557 # define EVP_VerifyUpdate(a,b,c)         EVP_DigestUpdate(a,b,c)
    558 # define EVP_OpenUpdate(a,b,c,d,e)       EVP_DecryptUpdate(a,b,c,d,e)
    559 # define EVP_SealUpdate(a,b,c,d,e)       EVP_EncryptUpdate(a,b,c,d,e)
    560 # define EVP_DigestSignUpdate(a,b,c)     EVP_DigestUpdate(a,b,c)
    561 # define EVP_DigestVerifyUpdate(a,b,c)   EVP_DigestUpdate(a,b,c)
    562 
    563 # ifdef CONST_STRICT
    564 void BIO_set_md(BIO *, const EVP_MD *md);
    565 # else
    566 #  define BIO_set_md(b,md)               BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
    567 # endif
    568 # define BIO_get_md(b,mdp)               BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
    569 # define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
    570 # define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(char *)mdcp)
    571 # define BIO_get_cipher_status(b)        BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
    572 # define BIO_get_cipher_ctx(b,c_pp)      BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
    573 
    574 int EVP_Cipher(EVP_CIPHER_CTX *c,
    575                unsigned char *out, const unsigned char *in, unsigned int inl);
    576 
    577 # define EVP_add_cipher_alias(n,alias) \
    578         OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
    579 # define EVP_add_digest_alias(n,alias) \
    580         OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
    581 # define EVP_delete_cipher_alias(alias) \
    582         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
    583 # define EVP_delete_digest_alias(alias) \
    584         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
    585 
    586 void EVP_MD_CTX_init(EVP_MD_CTX *ctx);
    587 int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);
    588 EVP_MD_CTX *EVP_MD_CTX_create(void);
    589 void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
    590 int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in);
    591 void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);
    592 void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags);
    593 int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags);
    594 int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
    595 int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, size_t cnt);
    596 int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);
    597 int EVP_Digest(const void *data, size_t count,
    598                unsigned char *md, unsigned int *size, const EVP_MD *type,
    599                ENGINE *impl);
    600 
    601 int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in);
    602 int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
    603 int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);
    604 
    605 int EVP_read_pw_string(char *buf, int length, const char *prompt, int verify);
    606 int EVP_read_pw_string_min(char *buf, int minlen, int maxlen,
    607                            const char *prompt, int verify);
    608 void EVP_set_pw_prompt(const char *prompt);
    609 char *EVP_get_pw_prompt(void);
    610 
    611 int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
    612                    const unsigned char *salt, const unsigned char *data,
    613                    int datal, int count, unsigned char *key,
    614                    unsigned char *iv);
    615 
    616 void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags);
    617 void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags);
    618 int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags);
    619 
    620 int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
    621                     const unsigned char *key, const unsigned char *iv);
    622 int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
    623                        ENGINE *impl, const unsigned char *key,
    624                        const unsigned char *iv);
    625 int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
    626                       const unsigned char *in, int inl);
    627 int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
    628 int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
    629 
    630 int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
    631                     const unsigned char *key, const unsigned char *iv);
    632 int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
    633                        ENGINE *impl, const unsigned char *key,
    634                        const unsigned char *iv);
    635 int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
    636                       const unsigned char *in, int inl);
    637 int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
    638 int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
    639 
    640 int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
    641                    const unsigned char *key, const unsigned char *iv,
    642                    int enc);
    643 int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
    644                       ENGINE *impl, const unsigned char *key,
    645                       const unsigned char *iv, int enc);
    646 int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
    647                      const unsigned char *in, int inl);
    648 int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
    649 int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
    650 
    651 int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s,
    652                   EVP_PKEY *pkey);
    653 
    654 int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
    655                     unsigned int siglen, EVP_PKEY *pkey);
    656 
    657 int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
    658                        const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
    659 int EVP_DigestSignFinal(EVP_MD_CTX *ctx,
    660                         unsigned char *sigret, size_t *siglen);
    661 
    662 int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
    663                          const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
    664 int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx,
    665                           const unsigned char *sig, size_t siglen);
    666 
    667 int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
    668                  const unsigned char *ek, int ekl, const unsigned char *iv,
    669                  EVP_PKEY *priv);
    670 int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
    671 
    672 int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
    673                  unsigned char **ek, int *ekl, unsigned char *iv,
    674                  EVP_PKEY **pubk, int npubk);
    675 int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
    676 
    677 void EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
    678 void EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
    679                       const unsigned char *in, int inl);
    680 void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl);
    681 int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
    682 
    683 void EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
    684 int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
    685                      const unsigned char *in, int inl);
    686 int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
    687                     char *out, int *outl);
    688 int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
    689 
    690 void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
    691 int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
    692 EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void);
    693 void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a);
    694 int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
    695 int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *c, int pad);
    696 int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
    697 int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);
    698 
    699 # ifndef OPENSSL_NO_BIO
    700 BIO_METHOD *BIO_f_md(void);
    701 BIO_METHOD *BIO_f_base64(void);
    702 BIO_METHOD *BIO_f_cipher(void);
    703 BIO_METHOD *BIO_f_reliable(void);
    704 void BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
    705                     const unsigned char *i, int enc);
    706 # endif
    707 
    708 const EVP_MD *EVP_md_null(void);
    709 # ifndef OPENSSL_NO_MD2
    710 const EVP_MD *EVP_md2(void);
    711 # endif
    712 # ifndef OPENSSL_NO_MD4
    713 const EVP_MD *EVP_md4(void);
    714 # endif
    715 # ifndef OPENSSL_NO_MD5
    716 const EVP_MD *EVP_md5(void);
    717 # endif
    718 # ifndef OPENSSL_NO_SHA
    719 const EVP_MD *EVP_sha(void);
    720 const EVP_MD *EVP_sha1(void);
    721 const EVP_MD *EVP_dss(void);
    722 const EVP_MD *EVP_dss1(void);
    723 const EVP_MD *EVP_ecdsa(void);
    724 # endif
    725 # ifndef OPENSSL_NO_SHA256
    726 const EVP_MD *EVP_sha224(void);
    727 const EVP_MD *EVP_sha256(void);
    728 # endif
    729 # ifndef OPENSSL_NO_SHA512
    730 const EVP_MD *EVP_sha384(void);
    731 const EVP_MD *EVP_sha512(void);
    732 # endif
    733 # ifndef OPENSSL_NO_MDC2
    734 const EVP_MD *EVP_mdc2(void);
    735 # endif
    736 # ifndef OPENSSL_NO_RIPEMD
    737 const EVP_MD *EVP_ripemd160(void);
    738 # endif
    739 # ifndef OPENSSL_NO_WHIRLPOOL
    740 const EVP_MD *EVP_whirlpool(void);
    741 # endif
    742 const EVP_CIPHER *EVP_enc_null(void); /* does nothing :-) */
    743 # ifndef OPENSSL_NO_DES
    744 const EVP_CIPHER *EVP_des_ecb(void);
    745 const EVP_CIPHER *EVP_des_ede(void);
    746 const EVP_CIPHER *EVP_des_ede3(void);
    747 const EVP_CIPHER *EVP_des_ede_ecb(void);
    748 const EVP_CIPHER *EVP_des_ede3_ecb(void);
    749 const EVP_CIPHER *EVP_des_cfb64(void);
    750 #  define EVP_des_cfb EVP_des_cfb64
    751 const EVP_CIPHER *EVP_des_cfb1(void);
    752 const EVP_CIPHER *EVP_des_cfb8(void);
    753 const EVP_CIPHER *EVP_des_ede_cfb64(void);
    754 #  define EVP_des_ede_cfb EVP_des_ede_cfb64
    755 #  if 0
    756 const EVP_CIPHER *EVP_des_ede_cfb1(void);
    757 const EVP_CIPHER *EVP_des_ede_cfb8(void);
    758 #  endif
    759 const EVP_CIPHER *EVP_des_ede3_cfb64(void);
    760 #  define EVP_des_ede3_cfb EVP_des_ede3_cfb64
    761 const EVP_CIPHER *EVP_des_ede3_cfb1(void);
    762 const EVP_CIPHER *EVP_des_ede3_cfb8(void);
    763 const EVP_CIPHER *EVP_des_ofb(void);
    764 const EVP_CIPHER *EVP_des_ede_ofb(void);
    765 const EVP_CIPHER *EVP_des_ede3_ofb(void);
    766 const EVP_CIPHER *EVP_des_cbc(void);
    767 const EVP_CIPHER *EVP_des_ede_cbc(void);
    768 const EVP_CIPHER *EVP_des_ede3_cbc(void);
    769 const EVP_CIPHER *EVP_desx_cbc(void);
    770 const EVP_CIPHER *EVP_des_ede3_wrap(void);
    771 /*
    772  * This should now be supported through the dev_crypto ENGINE. But also, why
    773  * are rc4 and md5 declarations made here inside a "NO_DES" precompiler
    774  * branch?
    775  */
    776 #  if 0
    777 #   ifdef OPENSSL_OPENBSD_DEV_CRYPTO
    778 const EVP_CIPHER *EVP_dev_crypto_des_ede3_cbc(void);
    779 const EVP_CIPHER *EVP_dev_crypto_rc4(void);
    780 const EVP_MD *EVP_dev_crypto_md5(void);
    781 #   endif
    782 #  endif
    783 # endif
    784 # ifndef OPENSSL_NO_RC4
    785 const EVP_CIPHER *EVP_rc4(void);
    786 const EVP_CIPHER *EVP_rc4_40(void);
    787 #  ifndef OPENSSL_NO_MD5
    788 const EVP_CIPHER *EVP_rc4_hmac_md5(void);
    789 #  endif
    790 # endif
    791 # ifndef OPENSSL_NO_IDEA
    792 const EVP_CIPHER *EVP_idea_ecb(void);
    793 const EVP_CIPHER *EVP_idea_cfb64(void);
    794 #  define EVP_idea_cfb EVP_idea_cfb64
    795 const EVP_CIPHER *EVP_idea_ofb(void);
    796 const EVP_CIPHER *EVP_idea_cbc(void);
    797 # endif
    798 # ifndef OPENSSL_NO_RC2
    799 const EVP_CIPHER *EVP_rc2_ecb(void);
    800 const EVP_CIPHER *EVP_rc2_cbc(void);
    801 const EVP_CIPHER *EVP_rc2_40_cbc(void);
    802 const EVP_CIPHER *EVP_rc2_64_cbc(void);
    803 const EVP_CIPHER *EVP_rc2_cfb64(void);
    804 #  define EVP_rc2_cfb EVP_rc2_cfb64
    805 const EVP_CIPHER *EVP_rc2_ofb(void);
    806 # endif
    807 # ifndef OPENSSL_NO_BF
    808 const EVP_CIPHER *EVP_bf_ecb(void);
    809 const EVP_CIPHER *EVP_bf_cbc(void);
    810 const EVP_CIPHER *EVP_bf_cfb64(void);
    811 #  define EVP_bf_cfb EVP_bf_cfb64
    812 const EVP_CIPHER *EVP_bf_ofb(void);
    813 # endif
    814 # ifndef OPENSSL_NO_CAST
    815 const EVP_CIPHER *EVP_cast5_ecb(void);
    816 const EVP_CIPHER *EVP_cast5_cbc(void);
    817 const EVP_CIPHER *EVP_cast5_cfb64(void);
    818 #  define EVP_cast5_cfb EVP_cast5_cfb64
    819 const EVP_CIPHER *EVP_cast5_ofb(void);
    820 # endif
    821 # ifndef OPENSSL_NO_RC5
    822 const EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
    823 const EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
    824 const EVP_CIPHER *EVP_rc5_32_12_16_cfb64(void);
    825 #  define EVP_rc5_32_12_16_cfb EVP_rc5_32_12_16_cfb64
    826 const EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
    827 # endif
    828 # ifndef OPENSSL_NO_AES
    829 const EVP_CIPHER *EVP_aes_128_ecb(void);
    830 const EVP_CIPHER *EVP_aes_128_cbc(void);
    831 const EVP_CIPHER *EVP_aes_128_cfb1(void);
    832 const EVP_CIPHER *EVP_aes_128_cfb8(void);
    833 const EVP_CIPHER *EVP_aes_128_cfb128(void);
    834 #  define EVP_aes_128_cfb EVP_aes_128_cfb128
    835 const EVP_CIPHER *EVP_aes_128_ofb(void);
    836 const EVP_CIPHER *EVP_aes_128_ctr(void);
    837 const EVP_CIPHER *EVP_aes_128_ccm(void);
    838 const EVP_CIPHER *EVP_aes_128_gcm(void);
    839 const EVP_CIPHER *EVP_aes_128_xts(void);
    840 const EVP_CIPHER *EVP_aes_128_wrap(void);
    841 const EVP_CIPHER *EVP_aes_192_ecb(void);
    842 const EVP_CIPHER *EVP_aes_192_cbc(void);
    843 const EVP_CIPHER *EVP_aes_192_cfb1(void);
    844 const EVP_CIPHER *EVP_aes_192_cfb8(void);
    845 const EVP_CIPHER *EVP_aes_192_cfb128(void);
    846 #  define EVP_aes_192_cfb EVP_aes_192_cfb128
    847 const EVP_CIPHER *EVP_aes_192_ofb(void);
    848 const EVP_CIPHER *EVP_aes_192_ctr(void);
    849 const EVP_CIPHER *EVP_aes_192_ccm(void);
    850 const EVP_CIPHER *EVP_aes_192_gcm(void);
    851 const EVP_CIPHER *EVP_aes_192_wrap(void);
    852 const EVP_CIPHER *EVP_aes_256_ecb(void);
    853 const EVP_CIPHER *EVP_aes_256_cbc(void);
    854 const EVP_CIPHER *EVP_aes_256_cfb1(void);
    855 const EVP_CIPHER *EVP_aes_256_cfb8(void);
    856 const EVP_CIPHER *EVP_aes_256_cfb128(void);
    857 #  define EVP_aes_256_cfb EVP_aes_256_cfb128
    858 const EVP_CIPHER *EVP_aes_256_ofb(void);
    859 const EVP_CIPHER *EVP_aes_256_ctr(void);
    860 const EVP_CIPHER *EVP_aes_256_ccm(void);
    861 const EVP_CIPHER *EVP_aes_256_gcm(void);
    862 const EVP_CIPHER *EVP_aes_256_xts(void);
    863 const EVP_CIPHER *EVP_aes_256_wrap(void);
    864 #  if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
    865 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void);
    866 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void);
    867 #  endif
    868 #  ifndef OPENSSL_NO_SHA256
    869 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void);
    870 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void);
    871 #  endif
    872 # endif
    873 # ifndef OPENSSL_NO_CAMELLIA
    874 const EVP_CIPHER *EVP_camellia_128_ecb(void);
    875 const EVP_CIPHER *EVP_camellia_128_cbc(void);
    876 const EVP_CIPHER *EVP_camellia_128_cfb1(void);
    877 const EVP_CIPHER *EVP_camellia_128_cfb8(void);
    878 const EVP_CIPHER *EVP_camellia_128_cfb128(void);
    879 #  define EVP_camellia_128_cfb EVP_camellia_128_cfb128
    880 const EVP_CIPHER *EVP_camellia_128_ofb(void);
    881 const EVP_CIPHER *EVP_camellia_192_ecb(void);
    882 const EVP_CIPHER *EVP_camellia_192_cbc(void);
    883 const EVP_CIPHER *EVP_camellia_192_cfb1(void);
    884 const EVP_CIPHER *EVP_camellia_192_cfb8(void);
    885 const EVP_CIPHER *EVP_camellia_192_cfb128(void);
    886 #  define EVP_camellia_192_cfb EVP_camellia_192_cfb128
    887 const EVP_CIPHER *EVP_camellia_192_ofb(void);
    888 const EVP_CIPHER *EVP_camellia_256_ecb(void);
    889 const EVP_CIPHER *EVP_camellia_256_cbc(void);
    890 const EVP_CIPHER *EVP_camellia_256_cfb1(void);
    891 const EVP_CIPHER *EVP_camellia_256_cfb8(void);
    892 const EVP_CIPHER *EVP_camellia_256_cfb128(void);
    893 #  define EVP_camellia_256_cfb EVP_camellia_256_cfb128
    894 const EVP_CIPHER *EVP_camellia_256_ofb(void);
    895 # endif
    896 
    897 # ifndef OPENSSL_NO_SEED
    898 const EVP_CIPHER *EVP_seed_ecb(void);
    899 const EVP_CIPHER *EVP_seed_cbc(void);
    900 const EVP_CIPHER *EVP_seed_cfb128(void);
    901 #  define EVP_seed_cfb EVP_seed_cfb128
    902 const EVP_CIPHER *EVP_seed_ofb(void);
    903 # endif
    904 
    905 void OPENSSL_add_all_algorithms_noconf(void);
    906 void OPENSSL_add_all_algorithms_conf(void);
    907 
    908 # ifdef OPENSSL_LOAD_CONF
    909 #  define OpenSSL_add_all_algorithms() \
    910                 OPENSSL_add_all_algorithms_conf()
    911 # else
    912 #  define OpenSSL_add_all_algorithms() \
    913                 OPENSSL_add_all_algorithms_noconf()
    914 # endif
    915 
    916 void OpenSSL_add_all_ciphers(void);
    917 void OpenSSL_add_all_digests(void);
    918 # define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
    919 # define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
    920 # define SSLeay_add_all_digests() OpenSSL_add_all_digests()
    921 
    922 int EVP_add_cipher(const EVP_CIPHER *cipher);
    923 int EVP_add_digest(const EVP_MD *digest);
    924 
    925 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
    926 const EVP_MD *EVP_get_digestbyname(const char *name);
    927 void EVP_cleanup(void);
    928 
    929 void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph,
    930                                    const char *from, const char *to, void *x),
    931                        void *arg);
    932 void EVP_CIPHER_do_all_sorted(void (*fn)
    933                                (const EVP_CIPHER *ciph, const char *from,
    934                                 const char *to, void *x), void *arg);
    935 
    936 void EVP_MD_do_all(void (*fn) (const EVP_MD *ciph,
    937                                const char *from, const char *to, void *x),
    938                    void *arg);
    939 void EVP_MD_do_all_sorted(void (*fn)
    940                            (const EVP_MD *ciph, const char *from,
    941                             const char *to, void *x), void *arg);
    942 
    943 int EVP_PKEY_decrypt_old(unsigned char *dec_key,
    944                          const unsigned char *enc_key, int enc_key_len,
    945                          EVP_PKEY *private_key);
    946 int EVP_PKEY_encrypt_old(unsigned char *enc_key,
    947                          const unsigned char *key, int key_len,
    948                          EVP_PKEY *pub_key);
    949 int EVP_PKEY_type(int type);
    950 int EVP_PKEY_id(const EVP_PKEY *pkey);
    951 int EVP_PKEY_base_id(const EVP_PKEY *pkey);
    952 int EVP_PKEY_bits(EVP_PKEY *pkey);
    953 int EVP_PKEY_size(EVP_PKEY *pkey);
    954 int EVP_PKEY_set_type(EVP_PKEY *pkey, int type);
    955 int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len);
    956 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key);
    957 void *EVP_PKEY_get0(EVP_PKEY *pkey);
    958 
    959 # ifndef OPENSSL_NO_RSA
    960 struct rsa_st;
    961 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key);
    962 struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
    963 # endif
    964 # ifndef OPENSSL_NO_DSA
    965 struct dsa_st;
    966 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, struct dsa_st *key);
    967 struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
    968 # endif
    969 # ifndef OPENSSL_NO_DH
    970 struct dh_st;
    971 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, struct dh_st *key);
    972 struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
    973 # endif
    974 # ifndef OPENSSL_NO_EC
    975 struct ec_key_st;
    976 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, struct ec_key_st *key);
    977 struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
    978 # endif
    979 
    980 EVP_PKEY *EVP_PKEY_new(void);
    981 void EVP_PKEY_free(EVP_PKEY *pkey);
    982 
    983 EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
    984                         long length);
    985 int i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
    986 
    987 EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
    988                          long length);
    989 EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
    990                              long length);
    991 int i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
    992 
    993 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
    994 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
    995 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode);
    996 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
    997 
    998 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
    999 
   1000 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
   1001                           int indent, ASN1_PCTX *pctx);
   1002 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
   1003                            int indent, ASN1_PCTX *pctx);
   1004 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
   1005                           int indent, ASN1_PCTX *pctx);
   1006 
   1007 int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);
   1008 
   1009 int EVP_CIPHER_type(const EVP_CIPHER *ctx);
   1010 
   1011 /* calls methods */
   1012 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
   1013 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
   1014 
   1015 /* These are used by EVP_CIPHER methods */
   1016 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
   1017 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
   1018 
   1019 /* PKCS5 password based encryption */
   1020 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
   1021                        ASN1_TYPE *param, const EVP_CIPHER *cipher,
   1022                        const EVP_MD *md, int en_de);
   1023 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
   1024                            const unsigned char *salt, int saltlen, int iter,
   1025                            int keylen, unsigned char *out);
   1026 int PKCS5_PBKDF2_HMAC(const char *pass, int passlen,
   1027                       const unsigned char *salt, int saltlen, int iter,
   1028                       const EVP_MD *digest, int keylen, unsigned char *out);
   1029 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
   1030                           ASN1_TYPE *param, const EVP_CIPHER *cipher,
   1031                           const EVP_MD *md, int en_de);
   1032 
   1033 void PKCS5_PBE_add(void);
   1034 
   1035 int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
   1036                        ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
   1037 
   1038 /* PBE type */
   1039 
   1040 /* Can appear as the outermost AlgorithmIdentifier */
   1041 # define EVP_PBE_TYPE_OUTER      0x0
   1042 /* Is an PRF type OID */
   1043 # define EVP_PBE_TYPE_PRF        0x1
   1044 
   1045 int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
   1046                          int md_nid, EVP_PBE_KEYGEN *keygen);
   1047 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
   1048                     EVP_PBE_KEYGEN *keygen);
   1049 int EVP_PBE_find(int type, int pbe_nid, int *pcnid, int *pmnid,
   1050                  EVP_PBE_KEYGEN **pkeygen);
   1051 void EVP_PBE_cleanup(void);
   1052 
   1053 # define ASN1_PKEY_ALIAS         0x1
   1054 # define ASN1_PKEY_DYNAMIC       0x2
   1055 # define ASN1_PKEY_SIGPARAM_NULL 0x4
   1056 
   1057 # define ASN1_PKEY_CTRL_PKCS7_SIGN       0x1
   1058 # define ASN1_PKEY_CTRL_PKCS7_ENCRYPT    0x2
   1059 # define ASN1_PKEY_CTRL_DEFAULT_MD_NID   0x3
   1060 # define ASN1_PKEY_CTRL_CMS_SIGN         0x5
   1061 # define ASN1_PKEY_CTRL_CMS_ENVELOPE     0x7
   1062 # define ASN1_PKEY_CTRL_CMS_RI_TYPE      0x8
   1063 
   1064 int EVP_PKEY_asn1_get_count(void);
   1065 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
   1066 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type);
   1067 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
   1068                                                    const char *str, int len);
   1069 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth);
   1070 int EVP_PKEY_asn1_add_alias(int to, int from);
   1071 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id,
   1072                             int *ppkey_flags, const char **pinfo,
   1073                             const char **ppem_str,
   1074                             const EVP_PKEY_ASN1_METHOD *ameth);
   1075 
   1076 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(EVP_PKEY *pkey);
   1077 EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
   1078                                         const char *pem_str,
   1079                                         const char *info);
   1080 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
   1081                         const EVP_PKEY_ASN1_METHOD *src);
   1082 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth);
   1083 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
   1084                               int (*pub_decode) (EVP_PKEY *pk,
   1085                                                  X509_PUBKEY *pub),
   1086                               int (*pub_encode) (X509_PUBKEY *pub,
   1087                                                  const EVP_PKEY *pk),
   1088                               int (*pub_cmp) (const EVP_PKEY *a,
   1089                                               const EVP_PKEY *b),
   1090                               int (*pub_print) (BIO *out,
   1091                                                 const EVP_PKEY *pkey,
   1092                                                 int indent, ASN1_PCTX *pctx),
   1093                               int (*pkey_size) (const EVP_PKEY *pk),
   1094                               int (*pkey_bits) (const EVP_PKEY *pk));
   1095 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
   1096                                int (*priv_decode) (EVP_PKEY *pk,
   1097                                                    PKCS8_PRIV_KEY_INFO
   1098                                                    *p8inf),
   1099                                int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8,
   1100                                                    const EVP_PKEY *pk),
   1101                                int (*priv_print) (BIO *out,
   1102                                                   const EVP_PKEY *pkey,
   1103                                                   int indent,
   1104                                                   ASN1_PCTX *pctx));
   1105 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
   1106                              int (*param_decode) (EVP_PKEY *pkey,
   1107                                                   const unsigned char **pder,
   1108                                                   int derlen),
   1109                              int (*param_encode) (const EVP_PKEY *pkey,
   1110                                                   unsigned char **pder),
   1111                              int (*param_missing) (const EVP_PKEY *pk),
   1112                              int (*param_copy) (EVP_PKEY *to,
   1113                                                 const EVP_PKEY *from),
   1114                              int (*param_cmp) (const EVP_PKEY *a,
   1115                                                const EVP_PKEY *b),
   1116                              int (*param_print) (BIO *out,
   1117                                                  const EVP_PKEY *pkey,
   1118                                                  int indent,
   1119                                                  ASN1_PCTX *pctx));
   1120 
   1121 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
   1122                             void (*pkey_free) (EVP_PKEY *pkey));
   1123 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
   1124                             int (*pkey_ctrl) (EVP_PKEY *pkey, int op,
   1125                                               long arg1, void *arg2));
   1126 void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
   1127                             int (*item_verify) (EVP_MD_CTX *ctx,
   1128                                                 const ASN1_ITEM *it,
   1129                                                 void *asn,
   1130                                                 X509_ALGOR *a,
   1131                                                 ASN1_BIT_STRING *sig,
   1132                                                 EVP_PKEY *pkey),
   1133                             int (*item_sign) (EVP_MD_CTX *ctx,
   1134                                               const ASN1_ITEM *it,
   1135                                               void *asn,
   1136                                               X509_ALGOR *alg1,
   1137                                               X509_ALGOR *alg2,
   1138                                               ASN1_BIT_STRING *sig));
   1139 
   1140 # define EVP_PKEY_OP_UNDEFINED           0
   1141 # define EVP_PKEY_OP_PARAMGEN            (1<<1)
   1142 # define EVP_PKEY_OP_KEYGEN              (1<<2)
   1143 # define EVP_PKEY_OP_SIGN                (1<<3)
   1144 # define EVP_PKEY_OP_VERIFY              (1<<4)
   1145 # define EVP_PKEY_OP_VERIFYRECOVER       (1<<5)
   1146 # define EVP_PKEY_OP_SIGNCTX             (1<<6)
   1147 # define EVP_PKEY_OP_VERIFYCTX           (1<<7)
   1148 # define EVP_PKEY_OP_ENCRYPT             (1<<8)
   1149 # define EVP_PKEY_OP_DECRYPT             (1<<9)
   1150 # define EVP_PKEY_OP_DERIVE              (1<<10)
   1151 
   1152 # define EVP_PKEY_OP_TYPE_SIG    \
   1153         (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER \
   1154                 | EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX)
   1155 
   1156 # define EVP_PKEY_OP_TYPE_CRYPT \
   1157         (EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
   1158 
   1159 # define EVP_PKEY_OP_TYPE_NOGEN \
   1160         (EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)
   1161 
   1162 # define EVP_PKEY_OP_TYPE_GEN \
   1163                 (EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)
   1164 
   1165 # define  EVP_PKEY_CTX_set_signature_md(ctx, md) \
   1166                 EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,  \
   1167                                         EVP_PKEY_CTRL_MD, 0, (void *)md)
   1168 
   1169 # define  EVP_PKEY_CTX_get_signature_md(ctx, pmd)        \
   1170                 EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,  \
   1171                                         EVP_PKEY_CTRL_GET_MD, 0, (void *)pmd)
   1172 
   1173 # define EVP_PKEY_CTRL_MD                1
   1174 # define EVP_PKEY_CTRL_PEER_KEY          2
   1175 
   1176 # define EVP_PKEY_CTRL_PKCS7_ENCRYPT     3
   1177 # define EVP_PKEY_CTRL_PKCS7_DECRYPT     4
   1178 
   1179 # define EVP_PKEY_CTRL_PKCS7_SIGN        5
   1180 
   1181 # define EVP_PKEY_CTRL_SET_MAC_KEY       6
   1182 
   1183 # define EVP_PKEY_CTRL_DIGESTINIT        7
   1184 
   1185 /* Used by GOST key encryption in TLS */
   1186 # define EVP_PKEY_CTRL_SET_IV            8
   1187 
   1188 # define EVP_PKEY_CTRL_CMS_ENCRYPT       9
   1189 # define EVP_PKEY_CTRL_CMS_DECRYPT       10
   1190 # define EVP_PKEY_CTRL_CMS_SIGN          11
   1191 
   1192 # define EVP_PKEY_CTRL_CIPHER            12
   1193 
   1194 # define EVP_PKEY_CTRL_GET_MD            13
   1195 
   1196 # define EVP_PKEY_ALG_CTRL               0x1000
   1197 
   1198 # define EVP_PKEY_FLAG_AUTOARGLEN        2
   1199 /*
   1200  * Method handles all operations: don't assume any digest related defaults.
   1201  */
   1202 # define EVP_PKEY_FLAG_SIGCTX_CUSTOM     4
   1203 
   1204 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
   1205 EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags);
   1206 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
   1207                              const EVP_PKEY_METHOD *meth);
   1208 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src);
   1209 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
   1210 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);
   1211 
   1212 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e);
   1213 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e);
   1214 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *ctx);
   1215 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);
   1216 
   1217 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
   1218                       int cmd, int p1, void *p2);
   1219 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
   1220                           const char *value);
   1221 
   1222 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx);
   1223 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen);
   1224 
   1225 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e,
   1226                                const unsigned char *key, int keylen);
   1227 
   1228 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data);
   1229 void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx);
   1230 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx);
   1231 
   1232 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx);
   1233 
   1234 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data);
   1235 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx);
   1236 
   1237 int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
   1238 int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
   1239                   unsigned char *sig, size_t *siglen,
   1240                   const unsigned char *tbs, size_t tbslen);
   1241 int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
   1242 int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
   1243                     const unsigned char *sig, size_t siglen,
   1244                     const unsigned char *tbs, size_t tbslen);
   1245 int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
   1246 int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
   1247                             unsigned char *rout, size_t *routlen,
   1248                             const unsigned char *sig, size_t siglen);
   1249 int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx);
   1250 int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
   1251                      unsigned char *out, size_t *outlen,
   1252                      const unsigned char *in, size_t inlen);
   1253 int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
   1254 int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
   1255                      unsigned char *out, size_t *outlen,
   1256                      const unsigned char *in, size_t inlen);
   1257 
   1258 int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx);
   1259 int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer);
   1260 int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
   1261 
   1262 typedef int EVP_PKEY_gen_cb (EVP_PKEY_CTX *ctx);
   1263 
   1264 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx);
   1265 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
   1266 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx);
   1267 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
   1268 
   1269 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb);
   1270 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx);
   1271 
   1272 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx);
   1273 
   1274 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
   1275                             int (*init) (EVP_PKEY_CTX *ctx));
   1276 
   1277 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
   1278                             int (*copy) (EVP_PKEY_CTX *dst,
   1279                                          EVP_PKEY_CTX *src));
   1280 
   1281 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
   1282                                void (*cleanup) (EVP_PKEY_CTX *ctx));
   1283 
   1284 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
   1285                                 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
   1286                                 int (*paramgen) (EVP_PKEY_CTX *ctx,
   1287                                                  EVP_PKEY *pkey));
   1288 
   1289 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
   1290                               int (*keygen_init) (EVP_PKEY_CTX *ctx),
   1291                               int (*keygen) (EVP_PKEY_CTX *ctx,
   1292                                              EVP_PKEY *pkey));
   1293 
   1294 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
   1295                             int (*sign_init) (EVP_PKEY_CTX *ctx),
   1296                             int (*sign) (EVP_PKEY_CTX *ctx,
   1297                                          unsigned char *sig, size_t *siglen,
   1298                                          const unsigned char *tbs,
   1299                                          size_t tbslen));
   1300 
   1301 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
   1302                               int (*verify_init) (EVP_PKEY_CTX *ctx),
   1303                               int (*verify) (EVP_PKEY_CTX *ctx,
   1304                                              const unsigned char *sig,
   1305                                              size_t siglen,
   1306                                              const unsigned char *tbs,
   1307                                              size_t tbslen));
   1308 
   1309 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
   1310                                       int (*verify_recover_init) (EVP_PKEY_CTX
   1311                                                                   *ctx),
   1312                                       int (*verify_recover) (EVP_PKEY_CTX
   1313                                                              *ctx,
   1314                                                              unsigned char
   1315                                                              *sig,
   1316                                                              size_t *siglen,
   1317                                                              const unsigned
   1318                                                              char *tbs,
   1319                                                              size_t tbslen));
   1320 
   1321 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
   1322                                int (*signctx_init) (EVP_PKEY_CTX *ctx,
   1323                                                     EVP_MD_CTX *mctx),
   1324                                int (*signctx) (EVP_PKEY_CTX *ctx,
   1325                                                unsigned char *sig,
   1326                                                size_t *siglen,
   1327                                                EVP_MD_CTX *mctx));
   1328 
   1329 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
   1330                                  int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
   1331                                                         EVP_MD_CTX *mctx),
   1332                                  int (*verifyctx) (EVP_PKEY_CTX *ctx,
   1333                                                    const unsigned char *sig,
   1334                                                    int siglen,
   1335                                                    EVP_MD_CTX *mctx));
   1336 
   1337 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
   1338                                int (*encrypt_init) (EVP_PKEY_CTX *ctx),
   1339                                int (*encryptfn) (EVP_PKEY_CTX *ctx,
   1340                                                  unsigned char *out,
   1341                                                  size_t *outlen,
   1342                                                  const unsigned char *in,
   1343                                                  size_t inlen));
   1344 
   1345 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
   1346                                int (*decrypt_init) (EVP_PKEY_CTX *ctx),
   1347                                int (*decrypt) (EVP_PKEY_CTX *ctx,
   1348                                                unsigned char *out,
   1349                                                size_t *outlen,
   1350                                                const unsigned char *in,
   1351                                                size_t inlen));
   1352 
   1353 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
   1354                               int (*derive_init) (EVP_PKEY_CTX *ctx),
   1355                               int (*derive) (EVP_PKEY_CTX *ctx,
   1356                                              unsigned char *key,
   1357                                              size_t *keylen));
   1358 
   1359 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
   1360                             int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
   1361                                          void *p2),
   1362                             int (*ctrl_str) (EVP_PKEY_CTX *ctx,
   1363                                              const char *type,
   1364                                              const char *value));
   1365 
   1366 void EVP_add_alg_module(void);
   1367 
   1368 /* BEGIN ERROR CODES */
   1369 /*
   1370  * The following lines are auto generated by the script mkerr.pl. Any changes
   1371  * made after this point may be overwritten when the script is next run.
   1372  */
   1373 
   1374 void ERR_load_EVP_strings(void);
   1375 
   1376 /* Error codes for the EVP functions. */
   1377 
   1378 /* Function codes. */
   1379 # define EVP_F_AESNI_INIT_KEY                             165
   1380 # define EVP_F_AESNI_XTS_CIPHER                           176
   1381 # define EVP_F_AES_INIT_KEY                               133
   1382 # define EVP_F_AES_T4_INIT_KEY                            178
   1383 # define EVP_F_AES_XTS                                    172
   1384 # define EVP_F_AES_XTS_CIPHER                             175
   1385 # define EVP_F_ALG_MODULE_INIT                            177
   1386 # define EVP_F_CAMELLIA_INIT_KEY                          159
   1387 # define EVP_F_CMAC_INIT                                  173
   1388 # define EVP_F_CMLL_T4_INIT_KEY                           179
   1389 # define EVP_F_D2I_PKEY                                   100
   1390 # define EVP_F_DO_SIGVER_INIT                             161
   1391 # define EVP_F_DSAPKEY2PKCS8                              134
   1392 # define EVP_F_DSA_PKEY2PKCS8                             135
   1393 # define EVP_F_ECDSA_PKEY2PKCS8                           129
   1394 # define EVP_F_ECKEY_PKEY2PKCS8                           132
   1395 # define EVP_F_EVP_CIPHERINIT_EX                          123
   1396 # define EVP_F_EVP_CIPHER_CTX_COPY                        163
   1397 # define EVP_F_EVP_CIPHER_CTX_CTRL                        124
   1398 # define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH              122
   1399 # define EVP_F_EVP_DECRYPTFINAL_EX                        101
   1400 # define EVP_F_EVP_DIGESTINIT_EX                          128
   1401 # define EVP_F_EVP_ENCRYPTFINAL_EX                        127
   1402 # define EVP_F_EVP_MD_CTX_COPY_EX                         110
   1403 # define EVP_F_EVP_MD_SIZE                                162
   1404 # define EVP_F_EVP_OPENINIT                               102
   1405 # define EVP_F_EVP_PBE_ALG_ADD                            115
   1406 # define EVP_F_EVP_PBE_ALG_ADD_TYPE                       160
   1407 # define EVP_F_EVP_PBE_CIPHERINIT                         116
   1408 # define EVP_F_EVP_PKCS82PKEY                             111
   1409 # define EVP_F_EVP_PKCS82PKEY_BROKEN                      136
   1410 # define EVP_F_EVP_PKEY2PKCS8_BROKEN                      113
   1411 # define EVP_F_EVP_PKEY_COPY_PARAMETERS                   103
   1412 # define EVP_F_EVP_PKEY_CTX_CTRL                          137
   1413 # define EVP_F_EVP_PKEY_CTX_CTRL_STR                      150
   1414 # define EVP_F_EVP_PKEY_CTX_DUP                           156
   1415 # define EVP_F_EVP_PKEY_DECRYPT                           104
   1416 # define EVP_F_EVP_PKEY_DECRYPT_INIT                      138
   1417 # define EVP_F_EVP_PKEY_DECRYPT_OLD                       151
   1418 # define EVP_F_EVP_PKEY_DERIVE                            153
   1419 # define EVP_F_EVP_PKEY_DERIVE_INIT                       154
   1420 # define EVP_F_EVP_PKEY_DERIVE_SET_PEER                   155
   1421 # define EVP_F_EVP_PKEY_ENCRYPT                           105
   1422 # define EVP_F_EVP_PKEY_ENCRYPT_INIT                      139
   1423 # define EVP_F_EVP_PKEY_ENCRYPT_OLD                       152
   1424 # define EVP_F_EVP_PKEY_GET1_DH                           119
   1425 # define EVP_F_EVP_PKEY_GET1_DSA                          120
   1426 # define EVP_F_EVP_PKEY_GET1_ECDSA                        130
   1427 # define EVP_F_EVP_PKEY_GET1_EC_KEY                       131
   1428 # define EVP_F_EVP_PKEY_GET1_RSA                          121
   1429 # define EVP_F_EVP_PKEY_KEYGEN                            146
   1430 # define EVP_F_EVP_PKEY_KEYGEN_INIT                       147
   1431 # define EVP_F_EVP_PKEY_NEW                               106
   1432 # define EVP_F_EVP_PKEY_PARAMGEN                          148
   1433 # define EVP_F_EVP_PKEY_PARAMGEN_INIT                     149
   1434 # define EVP_F_EVP_PKEY_SIGN                              140
   1435 # define EVP_F_EVP_PKEY_SIGN_INIT                         141
   1436 # define EVP_F_EVP_PKEY_VERIFY                            142
   1437 # define EVP_F_EVP_PKEY_VERIFY_INIT                       143
   1438 # define EVP_F_EVP_PKEY_VERIFY_RECOVER                    144
   1439 # define EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT               145
   1440 # define EVP_F_EVP_RIJNDAEL                               126
   1441 # define EVP_F_EVP_SIGNFINAL                              107
   1442 # define EVP_F_EVP_VERIFYFINAL                            108
   1443 # define EVP_F_FIPS_CIPHERINIT                            166
   1444 # define EVP_F_FIPS_CIPHER_CTX_COPY                       170
   1445 # define EVP_F_FIPS_CIPHER_CTX_CTRL                       167
   1446 # define EVP_F_FIPS_CIPHER_CTX_SET_KEY_LENGTH             171
   1447 # define EVP_F_FIPS_DIGESTINIT                            168
   1448 # define EVP_F_FIPS_MD_CTX_COPY                           169
   1449 # define EVP_F_HMAC_INIT_EX                               174
   1450 # define EVP_F_INT_CTX_NEW                                157
   1451 # define EVP_F_PKCS5_PBE_KEYIVGEN                         117
   1452 # define EVP_F_PKCS5_V2_PBE_KEYIVGEN                      118
   1453 # define EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN                   164
   1454 # define EVP_F_PKCS8_SET_BROKEN                           112
   1455 # define EVP_F_PKEY_SET_TYPE                              158
   1456 # define EVP_F_RC2_MAGIC_TO_METH                          109
   1457 # define EVP_F_RC5_CTRL                                   125
   1458 
   1459 /* Reason codes. */
   1460 # define EVP_R_AES_IV_SETUP_FAILED                        162
   1461 # define EVP_R_AES_KEY_SETUP_FAILED                       143
   1462 # define EVP_R_ASN1_LIB                                   140
   1463 # define EVP_R_BAD_BLOCK_LENGTH                           136
   1464 # define EVP_R_BAD_DECRYPT                                100
   1465 # define EVP_R_BAD_KEY_LENGTH                             137
   1466 # define EVP_R_BN_DECODE_ERROR                            112
   1467 # define EVP_R_BN_PUBKEY_ERROR                            113
   1468 # define EVP_R_BUFFER_TOO_SMALL                           155
   1469 # define EVP_R_CAMELLIA_KEY_SETUP_FAILED                  157
   1470 # define EVP_R_CIPHER_PARAMETER_ERROR                     122
   1471 # define EVP_R_COMMAND_NOT_SUPPORTED                      147
   1472 # define EVP_R_CTRL_NOT_IMPLEMENTED                       132
   1473 # define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED             133
   1474 # define EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH          138
   1475 # define EVP_R_DECODE_ERROR                               114
   1476 # define EVP_R_DIFFERENT_KEY_TYPES                        101
   1477 # define EVP_R_DIFFERENT_PARAMETERS                       153
   1478 # define EVP_R_DISABLED_FOR_FIPS                          163
   1479 # define EVP_R_ENCODE_ERROR                               115
   1480 # define EVP_R_ERROR_LOADING_SECTION                      165
   1481 # define EVP_R_ERROR_SETTING_FIPS_MODE                    166
   1482 # define EVP_R_EVP_PBE_CIPHERINIT_ERROR                   119
   1483 # define EVP_R_EXPECTING_AN_RSA_KEY                       127
   1484 # define EVP_R_EXPECTING_A_DH_KEY                         128
   1485 # define EVP_R_EXPECTING_A_DSA_KEY                        129
   1486 # define EVP_R_EXPECTING_A_ECDSA_KEY                      141
   1487 # define EVP_R_EXPECTING_A_EC_KEY                         142
   1488 # define EVP_R_FIPS_MODE_NOT_SUPPORTED                    167
   1489 # define EVP_R_INITIALIZATION_ERROR                       134
   1490 # define EVP_R_INPUT_NOT_INITIALIZED                      111
   1491 # define EVP_R_INVALID_DIGEST                             152
   1492 # define EVP_R_INVALID_FIPS_MODE                          168
   1493 # define EVP_R_INVALID_KEY                                171
   1494 # define EVP_R_INVALID_KEY_LENGTH                         130
   1495 # define EVP_R_INVALID_OPERATION                          148
   1496 # define EVP_R_IV_TOO_LARGE                               102
   1497 # define EVP_R_KEYGEN_FAILURE                             120
   1498 # define EVP_R_MESSAGE_DIGEST_IS_NULL                     159
   1499 # define EVP_R_METHOD_NOT_SUPPORTED                       144
   1500 # define EVP_R_MISSING_PARAMETERS                         103
   1501 # define EVP_R_NO_CIPHER_SET                              131
   1502 # define EVP_R_NO_DEFAULT_DIGEST                          158
   1503 # define EVP_R_NO_DIGEST_SET                              139
   1504 # define EVP_R_NO_DSA_PARAMETERS                          116
   1505 # define EVP_R_NO_KEY_SET                                 154
   1506 # define EVP_R_NO_OPERATION_SET                           149
   1507 # define EVP_R_NO_SIGN_FUNCTION_CONFIGURED                104
   1508 # define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED              105
   1509 # define EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE   150
   1510 # define EVP_R_OPERATON_NOT_INITIALIZED                   151
   1511 # define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE                  117
   1512 # define EVP_R_PRIVATE_KEY_DECODE_ERROR                   145
   1513 # define EVP_R_PRIVATE_KEY_ENCODE_ERROR                   146
   1514 # define EVP_R_PUBLIC_KEY_NOT_RSA                         106
   1515 # define EVP_R_TOO_LARGE                                  164
   1516 # define EVP_R_UNKNOWN_CIPHER                             160
   1517 # define EVP_R_UNKNOWN_DIGEST                             161
   1518 # define EVP_R_UNKNOWN_OPTION                             169
   1519 # define EVP_R_UNKNOWN_PBE_ALGORITHM                      121
   1520 # define EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS                135
   1521 # define EVP_R_UNSUPPORTED_ALGORITHM                      156
   1522 # define EVP_R_UNSUPPORTED_CIPHER                         107
   1523 # define EVP_R_UNSUPPORTED_KEYLENGTH                      123
   1524 # define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION        124
   1525 # define EVP_R_UNSUPPORTED_KEY_SIZE                       108
   1526 # define EVP_R_UNSUPPORTED_PRF                            125
   1527 # define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM          118
   1528 # define EVP_R_UNSUPPORTED_SALT_TYPE                      126
   1529 # define EVP_R_WRAP_MODE_NOT_ALLOWED                      170
   1530 # define EVP_R_WRONG_FINAL_BLOCK_LENGTH                   109
   1531 # define EVP_R_WRONG_PUBLIC_KEY_TYPE                      110
   1532 
   1533 # ifdef  __cplusplus
   1534 }
   1535 # endif
   1536 #endif
   1537