crypto/evp/evp.h

   1 /* crypto/evp/evp.h */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@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@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@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@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 #ifndef NO_BIO
  71 #include <openssl/bio.h>
  72 #endif
  73 #ifndef NO_MD2
  74 #include <openssl/md2.h>
  75 #endif
  76 #ifndef NO_MD4
  77 #include <openssl/md4.h>
  78 #endif
  79 #ifndef NO_MD5
  80 #include <openssl/md5.h>
  81 #endif
  82 #ifndef NO_SHA
  83 #include <openssl/sha.h>
  84 #endif
  85 #ifndef NO_RIPEMD
  86 #include <openssl/ripemd.h>
  87 #endif
  88 #ifndef NO_DES
  89 #include <openssl/des.h>
  90 #endif
  91 #ifndef NO_RC4
  92 #include <openssl/rc4.h>
  93 #endif
  94 #ifndef NO_RC2
  95 #include <openssl/rc2.h>
  96 #endif
  97 #ifndef NO_RC5
  98 #include <openssl/rc5.h>
  99 #endif
 100 #ifndef NO_BF
 101 #include <openssl/blowfish.h>
 102 #endif
 103 #ifndef NO_CAST
 104 #include <openssl/cast.h>
 105 #endif
 106 #ifndef NO_IDEA
 107 #include <openssl/idea.h>
 108 #endif
 109 #ifndef NO_MDC2
 110 #include <openssl/mdc2.h>
 111 #endif
 112
 113 #define EVP_RC2_KEY_SIZE                16
 114 #define EVP_RC4_KEY_SIZE                16
 115 #define EVP_BLOWFISH_KEY_SIZE           16
 116 #define EVP_CAST5_KEY_SIZE              16
 117 #define EVP_RC5_32_12_16_KEY_SIZE       16
 118 #define EVP_MAX_MD_SIZE                 (16+20) /* The SSLv3 md5+sha1 type */
 119 #define EVP_MAX_KEY_LENGTH              24
 120 #define EVP_MAX_IV_LENGTH               8
 121
 122 #define PKCS5_SALT_LEN                  8
 123 /* Default PKCS#5 iteration count */
 124 #define PKCS5_DEFAULT_ITER              2048
 125
 126 #ifndef NO_RSA
 127 #include <openssl/rsa.h>
 128 #endif
 129
 130 #ifndef NO_DSA
 131 #include <openssl/dsa.h>
 132 #endif
 133
 134 #ifndef NO_DH
 135 #include <openssl/dh.h>
 136 #endif
 137
 138 #include <openssl/objects.h>
 139
 140 #define EVP_PK_RSA      0x0001
 141 #define EVP_PK_DSA      0x0002
 142 #define EVP_PK_DH       0x0004
 143 #define EVP_PKT_SIGN    0x0010
 144 #define EVP_PKT_ENC     0x0020
 145 #define EVP_PKT_EXCH    0x0040
 146 #define EVP_PKS_RSA     0x0100
 147 #define EVP_PKS_DSA     0x0200
 148 #define EVP_PKT_EXP     0x1000 /* <= 512 bit key */
 149
 150 #define EVP_PKEY_NONE   NID_undef
 151 #define EVP_PKEY_RSA    NID_rsaEncryption
 152 #define EVP_PKEY_RSA2   NID_rsa
 153 #define EVP_PKEY_DSA    NID_dsa
 154 #define EVP_PKEY_DSA1   NID_dsa_2
 155 #define EVP_PKEY_DSA2   NID_dsaWithSHA
 156 #define EVP_PKEY_DSA3   NID_dsaWithSHA1
 157 #define EVP_PKEY_DSA4   NID_dsaWithSHA1_2
 158 #define EVP_PKEY_DH     NID_dhKeyAgreement
 159
 160 #ifdef  __cplusplus
 161 extern "C" {
 162 #endif
 163
 164 /* Type needs to be a bit field
 165  * Sub-type needs to be for variations on the method, as in, can it do
 166  * arbitrary encryption.... */
 167 typedef struct evp_pkey_st
 168         {
 169         int type;
 170         int save_type;
 171         int references;
 172         union   {
 173                 char *ptr;
 174 #ifndef NO_RSA
 175                 struct rsa_st *rsa;     /* RSA */
 176 #endif
 177 #ifndef NO_DSA
 178                 struct dsa_st *dsa;     /* DSA */
 179 #endif
 180 #ifndef NO_DH
 181                 struct dh_st *dh;       /* DH */
 182 #endif
 183                 } pkey;
 184         int save_parameters;
 185         STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
 186         } EVP_PKEY;
 187
 188 #define EVP_PKEY_MO_SIGN        0x0001
 189 #define EVP_PKEY_MO_VERIFY      0x0002
 190 #define EVP_PKEY_MO_ENCRYPT     0x0004
 191 #define EVP_PKEY_MO_DECRYPT     0x0008
 192
 193 #if 0
 194 /* This structure is required to tie the message digest and signing together.
 195  * The lookup can be done by md/pkey_method, oid, oid/pkey_method, or
 196  * oid, md and pkey.
 197  * This is required because for various smart-card perform the digest and
 198  * signing/verification on-board.  To handle this case, the specific
 199  * EVP_MD and EVP_PKEY_METHODs need to be closely associated.
 200  * When a PKEY is created, it will have a EVP_PKEY_METHOD associated with it.
 201  * This can either be software or a token to provide the required low level
 202  * routines.
 203  */
 204 typedef struct evp_pkey_md_st
 205         {
 206         int oid;
 207         EVP_MD *md;
 208         EVP_PKEY_METHOD *pkey;
 209         } EVP_PKEY_MD;
 210
 211 #define EVP_rsa_md2() \
 212                 EVP_PKEY_MD_add(NID_md2WithRSAEncryption,\
 213                         EVP_rsa_pkcs1(),EVP_md2())
 214 #define EVP_rsa_md5() \
 215                 EVP_PKEY_MD_add(NID_md5WithRSAEncryption,\
 216                         EVP_rsa_pkcs1(),EVP_md5())
 217 #define EVP_rsa_sha0() \
 218                 EVP_PKEY_MD_add(NID_shaWithRSAEncryption,\
 219                         EVP_rsa_pkcs1(),EVP_sha())
 220 #define EVP_rsa_sha1() \
 221                 EVP_PKEY_MD_add(NID_sha1WithRSAEncryption,\
 222                         EVP_rsa_pkcs1(),EVP_sha1())
 223 #define EVP_rsa_ripemd160() \
 224                 EVP_PKEY_MD_add(NID_ripemd160WithRSA,\
 225                         EVP_rsa_pkcs1(),EVP_ripemd160())
 226 #define EVP_rsa_mdc2() \
 227                 EVP_PKEY_MD_add(NID_mdc2WithRSA,\
 228                         EVP_rsa_octet_string(),EVP_mdc2())
 229 #define EVP_dsa_sha() \
 230                 EVP_PKEY_MD_add(NID_dsaWithSHA,\
 231                         EVP_dsa(),EVP_mdc2())
 232 #define EVP_dsa_sha1() \
 233                 EVP_PKEY_MD_add(NID_dsaWithSHA1,\
 234                         EVP_dsa(),EVP_sha1())
 235
 236 typedef struct evp_pkey_method_st
 237         {
 238         char *name;
 239         int flags;
 240         int type;               /* RSA, DSA, an SSLeay specific constant */
 241         int oid;                /* For the pub-key type */
 242         int encrypt_oid;        /* pub/priv key encryption */
 243
 244         int (*sign)();
 245         int (*verify)();
 246         struct  {
 247                 int
 248                 int (*set)();   /* get and/or set the underlying type */
 249                 int (*get)();
 250                 int (*encrypt)();
 251                 int (*decrypt)();
 252                 int (*i2d)();
 253                 int (*d2i)();
 254                 int (*dup)();
 255                 } pub,priv;
 256         int (*set_asn1_parameters)();
 257         int (*get_asn1_parameters)();
 258         } EVP_PKEY_METHOD;
 259 #endif
 260
 261 #ifndef EVP_MD
 262 typedef struct env_md_st
 263         {
 264         int type;
 265         int pkey_type;
 266         int md_size;
 267         void (*init)();
 268         void (*update)();
 269         void (*final)();
 270
 271         int (*sign)();
 272         int (*verify)();
 273         int required_pkey_type[5]; /*EVP_PKEY_xxx */
 274         int block_size;
 275         int ctx_size; /* how big does the ctx need to be */
 276         } EVP_MD;
 277
 278
 279
 280 #define EVP_PKEY_NULL_method    NULL,NULL,{0,0,0,0}
 281
 282 #ifndef NO_DSA
 283 #define EVP_PKEY_DSA_method     DSA_sign,DSA_verify, \
 284                                 {EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
 285                                         EVP_PKEY_DSA4,0}
 286 #else
 287 #define EVP_PKEY_DSA_method     EVP_PKEY_NULL_method
 288 #endif
 289
 290 #ifndef NO_RSA
 291 #define EVP_PKEY_RSA_method     RSA_sign,RSA_verify, \
 292                                 {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
 293 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
 294                                 RSA_sign_ASN1_OCTET_STRING, \
 295                                 RSA_verify_ASN1_OCTET_STRING, \
 296                                 {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
 297 #else
 298 #define EVP_PKEY_RSA_method     EVP_PKEY_NULL_method
 299 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
 300 #endif
 301
 302 #endif /* !EVP_MD */
 303
 304 typedef struct env_md_ctx_st
 305         {
 306         const EVP_MD *digest;
 307         union   {
 308                 unsigned char base[4];
 309 #ifndef NO_MD2
 310                 MD2_CTX md2;
 311 #endif
 312 #ifndef NO_MD5
 313                 MD5_CTX md5;
 314 #endif
 315 #ifndef NO_MD4
 316                 MD4_CTX md4;
 317 #endif
 318 #ifndef NO_RIPEMD
 319                 RIPEMD160_CTX ripemd160;
 320 #endif
 321 #ifndef NO_SHA
 322                 SHA_CTX sha;
 323 #endif
 324 #ifndef NO_MDC2
 325                 MDC2_CTX mdc2;
 326 #endif
 327                 } md;
 328         } EVP_MD_CTX;
 329
 330 typedef struct evp_cipher_st EVP_CIPHER;
 331 typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX;
 332
 333 struct evp_cipher_st
 334         {
 335         int nid;
 336         int block_size;
 337         int key_len;            /* Default value for variable length ciphers */
 338         int iv_len;
 339         unsigned long flags;    /* Various flags */
 340         int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 341                     const unsigned char *iv, int enc);  /* init key */
 342         int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
 343                          const unsigned char *in, unsigned int inl);/* encrypt/decrypt data */
 344         int (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */
 345         int ctx_size;           /* how big the ctx needs to be */
 346         int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */
 347         int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */
 348         int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */
 349         void *app_data;         /* Application data */
 350         };
 351
 352 /* Values for cipher flags */
 353
 354 /* Modes for ciphers */
 355
 356 #define         EVP_CIPH_STREAM_CIPHER          0x0
 357 #define         EVP_CIPH_ECB_MODE               0x1
 358 #define         EVP_CIPH_CBC_MODE               0x2
 359 #define         EVP_CIPH_CFB_MODE               0x3
 360 #define         EVP_CIPH_OFB_MODE               0x4
 361 #define         EVP_CIPH_MODE                   0x7
 362 /* Set if variable length cipher */
 363 #define         EVP_CIPH_VARIABLE_LENGTH        0x8
 364 /* Set if the iv handling should be done by the cipher itself */
 365 #define         EVP_CIPH_CUSTOM_IV              0x10
 366 /* Set if the cipher's init() function should be called if key is NULL */
 367 #define         EVP_CIPH_ALWAYS_CALL_INIT       0x20
 368 /* Call ctrl() to init cipher parameters */
 369 #define         EVP_CIPH_CTRL_INIT              0x40
 370 /* Don't use standard key length function */
 371 #define         EVP_CIPH_CUSTOM_KEY_LENGTH      0x80
 372
 373 /* ctrl() values */
 374
 375 #define         EVP_CTRL_INIT                   0x0
 376 #define         EVP_CTRL_SET_KEY_LENGTH         0x1
 377 #define         EVP_CTRL_GET_RC2_KEY_BITS       0x2
 378 #define         EVP_CTRL_SET_RC2_KEY_BITS       0x3
 379 #define         EVP_CTRL_GET_RC5_ROUNDS         0x4
 380 #define         EVP_CTRL_SET_RC5_ROUNDS         0x5
 381
 382 typedef struct evp_cipher_info_st
 383         {
 384         const EVP_CIPHER *cipher;
 385         unsigned char iv[EVP_MAX_IV_LENGTH];
 386         } EVP_CIPHER_INFO;
 387
 388 struct evp_cipher_ctx_st
 389         {
 390         const EVP_CIPHER *cipher;
 391         int encrypt;            /* encrypt or decrypt */
 392         int buf_len;            /* number we have left */
 393
 394         unsigned char  oiv[EVP_MAX_IV_LENGTH];  /* original iv */
 395         unsigned char  iv[EVP_MAX_IV_LENGTH];   /* working iv */
 396         unsigned char buf[EVP_MAX_IV_LENGTH];   /* saved partial block */
 397         int num;                                /* used by cfb/ofb mode */
 398
 399         void *app_data;         /* application stuff */
 400         int key_len;            /* May change for variable length cipher */
 401         union   {
 402 #ifndef NO_RC4
 403                 struct
 404                         {
 405                         unsigned char key[EVP_RC4_KEY_SIZE];
 406                         RC4_KEY ks;     /* working key */
 407                         } rc4;
 408 #endif
 409 #ifndef NO_DES
 410                 des_key_schedule des_ks;/* key schedule */
 411                 struct
 412                         {
 413                         des_key_schedule ks;/* key schedule */
 414                         des_cblock inw;
 415                         des_cblock outw;
 416                         } desx_cbc;
 417                 struct
 418                         {
 419                         des_key_schedule ks1;/* key schedule */
 420                         des_key_schedule ks2;/* key schedule (for ede) */
 421                         des_key_schedule ks3;/* key schedule (for ede3) */
 422                         } des_ede;
 423 #endif
 424 #ifndef NO_IDEA
 425                 IDEA_KEY_SCHEDULE idea_ks;/* key schedule */
 426 #endif
 427 #ifndef NO_RC2
 428                 struct {
 429                         int key_bits;   /* effective key bits */
 430                         RC2_KEY ks;/* key schedule */
 431                 } rc2;
 432 #endif
 433 #ifndef NO_RC5
 434                 struct {
 435                         int rounds;     /* number of rounds */
 436                         RC5_32_KEY ks;/* key schedule */
 437                 } rc5;
 438 #endif
 439 #ifndef NO_BF
 440                 BF_KEY bf_ks;/* key schedule */
 441 #endif
 442 #ifndef NO_CAST
 443                 CAST_KEY cast_ks;/* key schedule */
 444 #endif
 445                 } c;
 446         };
 447
 448 typedef struct evp_Encode_Ctx_st
 449         {
 450         int num;        /* number saved in a partial encode/decode */
 451         int length;     /* The length is either the output line length
 452                          * (in input bytes) or the shortest input line
 453                          * length that is ok.  Once decoding begins,
 454                          * the length is adjusted up each time a longer
 455                          * line is decoded */
 456         unsigned char enc_data[80];     /* data to encode */
 457         int line_num;   /* number read on current line */
 458         int expect_nl;
 459         } EVP_ENCODE_CTX;
 460
 461 /* Password based encryption function */
 462 typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 463                 ASN1_TYPE *param, EVP_CIPHER *cipher,
 464                 EVP_MD *md, int en_de);
 465
 466 #define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
 467                                         (char *)(rsa))
 468 #define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
 469                                         (char *)(dsa))
 470 #define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
 471                                         (char *)(dh))
 472
 473 /* Add some extra combinations */
 474 #define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
 475 #define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
 476 #define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
 477 #define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
 478
 479 #define EVP_MD_type(e)                  ((e)->type)
 480 #define EVP_MD_pkey_type(e)             ((e)->pkey_type)
 481 #define EVP_MD_size(e)                  ((e)->md_size)
 482 #define EVP_MD_block_size(e)            ((e)->block_size)
 483
 484 #define EVP_MD_CTX_md(e)                ((e)->digest)
 485 #define EVP_MD_CTX_size(e)              EVP_MD_size((e)->digest)
 486 #define EVP_MD_CTX_block_size(e)        EVP_MD_block_size((e)->digest)
 487 #define EVP_MD_CTX_type(e)              EVP_MD_type((e)->digest)
 488
 489 #define EVP_CIPHER_nid(e)               ((e)->nid)
 490 #define EVP_CIPHER_block_size(e)        ((e)->block_size)
 491 #define EVP_CIPHER_key_length(e)        ((e)->key_len)
 492 #define EVP_CIPHER_iv_length(e)         ((e)->iv_len)
 493 #define EVP_CIPHER_flags(e)             ((e)->flags)
 494 #define EVP_CIPHER_mode(e)              ((e)->flags) & EVP_CIPH_MODE)
 495
 496 #define EVP_CIPHER_CTX_cipher(e)        ((e)->cipher)
 497 #define EVP_CIPHER_CTX_nid(e)           ((e)->cipher->nid)
 498 #define EVP_CIPHER_CTX_block_size(e)    ((e)->cipher->block_size)
 499 #define EVP_CIPHER_CTX_key_length(e)    ((e)->key_len)
 500 #define EVP_CIPHER_CTX_iv_length(e)     ((e)->cipher->iv_len)
 501 #define EVP_CIPHER_CTX_get_app_data(e)  ((e)->app_data)
 502 #define EVP_CIPHER_CTX_set_app_data(e,d) ((e)->app_data=(char *)(d))
 503 #define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
 504 #define EVP_CIPHER_CTX_flags(e)         ((e)->cipher->flags)
 505 #define EVP_CIPHER_CTX_mode(e)          ((e)->cipher->flags & EVP_CIPH_MODE)
 506
 507 #define EVP_ENCODE_LENGTH(l)    (((l+2)/3*4)+(l/48+1)*2+80)
 508 #define EVP_DECODE_LENGTH(l)    ((l+3)/4*3+80)
 509
 510 #define EVP_SignInit(a,b)               EVP_DigestInit(a,b)
 511 #define EVP_SignUpdate(a,b,c)           EVP_DigestUpdate(a,b,c)
 512 #define EVP_VerifyInit(a,b)             EVP_DigestInit(a,b)
 513 #define EVP_VerifyUpdate(a,b,c)         EVP_DigestUpdate(a,b,c)
 514 #define EVP_OpenUpdate(a,b,c,d,e)       EVP_DecryptUpdate(a,b,c,d,e)
 515 #define EVP_SealUpdate(a,b,c,d,e)       EVP_EncryptUpdate(a,b,c,d,e)
 516
 517 #ifdef CONST_STRICT
 518 void BIO_set_md(BIO *,const EVP_MD *md);
 519 #else
 520 # define BIO_set_md(b,md)               BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
 521 #endif
 522 #define BIO_get_md(b,mdp)               BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
 523 #define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
 524 #define BIO_get_cipher_status(b)        BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
 525 #define BIO_get_cipher_ctx(b,c_pp)      BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
 526
 527 #define EVP_Cipher(c,o,i,l)     (c)->cipher->do_cipher((c),(o),(i),(l))
 528
 529 #define EVP_add_cipher_alias(n,alias) \
 530         OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
 531 #define EVP_add_digest_alias(n,alias) \
 532         OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
 533 #define EVP_delete_cipher_alias(alias) \
 534         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
 535 #define EVP_delete_digest_alias(alias) \
 536         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
 537
 538
 539 int     EVP_MD_CTX_copy(EVP_MD_CTX *out,EVP_MD_CTX *in);
 540 void    EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
 541 void    EVP_DigestUpdate(EVP_MD_CTX *ctx,const void *d,
 542                          unsigned int cnt);
 543 void    EVP_DigestFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
 544
 545 int     EVP_read_pw_string(char *buf,int length,const char *prompt,int verify);
 546 void    EVP_set_pw_prompt(char *prompt);
 547 char *  EVP_get_pw_prompt(void);
 548
 549 int     EVP_BytesToKey(const EVP_CIPHER *type,EVP_MD *md,unsigned char *salt,
 550                 unsigned char *data, int datal, int count,
 551                 unsigned char *key,unsigned char *iv);
 552
 553 int     EVP_EncryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
 554                 unsigned char *key, unsigned char *iv);
 555 int     EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
 556                 int *outl, unsigned char *in, int inl);
 557 int     EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
 558
 559 int     EVP_DecryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
 560                 unsigned char *key, unsigned char *iv);
 561 int     EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
 562                 int *outl, unsigned char *in, int inl);
 563 int     EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
 564
 565 int     EVP_CipherInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
 566                        unsigned char *key,unsigned char *iv,int enc);
 567 int     EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
 568                 int *outl, unsigned char *in, int inl);
 569 int     EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
 570
 571 int     EVP_SignFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s,
 572                 EVP_PKEY *pkey);
 573
 574 int     EVP_VerifyFinal(EVP_MD_CTX *ctx,unsigned char *sigbuf,
 575                 unsigned int siglen,EVP_PKEY *pkey);
 576
 577 int     EVP_OpenInit(EVP_CIPHER_CTX *ctx,EVP_CIPHER *type,unsigned char *ek,
 578                 int ekl,unsigned char *iv,EVP_PKEY *priv);
 579 int     EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
 580
 581 int     EVP_SealInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char **ek,
 582                 int *ekl, unsigned char *iv,EVP_PKEY **pubk, int npubk);
 583 void    EVP_SealFinal(EVP_CIPHER_CTX *ctx,unsigned char *out,int *outl);
 584
 585 void    EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
 586 void    EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,
 587                 int *outl,unsigned char *in,int inl);
 588 void    EVP_EncodeFinal(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl);
 589 int     EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
 590
 591 void    EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
 592 int     EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
 593                 unsigned char *in, int inl);
 594 int     EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
 595                 char *out, int *outl);
 596 int     EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
 597
 598 void    ERR_load_EVP_strings(void );
 599
 600 void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
 601 int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
 602 int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
 603 int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
 604
 605 #ifndef NO_BIO
 606 BIO_METHOD *BIO_f_md(void);
 607 BIO_METHOD *BIO_f_base64(void);
 608 BIO_METHOD *BIO_f_cipher(void);
 609 BIO_METHOD *BIO_f_reliable(void);
 610 void BIO_set_cipher(BIO *b,const EVP_CIPHER *c,unsigned char *k,
 611         unsigned char *i, int enc);
 612 #endif
 613
 614 EVP_MD *EVP_md_null(void);
 615 EVP_MD *EVP_md2(void);
 616 EVP_MD *EVP_md4(void);
 617 EVP_MD *EVP_md5(void);
 618 EVP_MD *EVP_sha(void);
 619 EVP_MD *EVP_sha1(void);
 620 EVP_MD *EVP_dss(void);
 621 EVP_MD *EVP_dss1(void);
 622 EVP_MD *EVP_mdc2(void);
 623 EVP_MD *EVP_ripemd160(void);
 624
 625 EVP_CIPHER *EVP_enc_null(void);         /* does nothing :-) */
 626 EVP_CIPHER *EVP_des_ecb(void);
 627 EVP_CIPHER *EVP_des_ede(void);
 628 EVP_CIPHER *EVP_des_ede3(void);
 629 EVP_CIPHER *EVP_des_cfb(void);
 630 EVP_CIPHER *EVP_des_ede_cfb(void);
 631 EVP_CIPHER *EVP_des_ede3_cfb(void);
 632 EVP_CIPHER *EVP_des_ofb(void);
 633 EVP_CIPHER *EVP_des_ede_ofb(void);
 634 EVP_CIPHER *EVP_des_ede3_ofb(void);
 635 EVP_CIPHER *EVP_des_cbc(void);
 636 EVP_CIPHER *EVP_des_ede_cbc(void);
 637 EVP_CIPHER *EVP_des_ede3_cbc(void);
 638 EVP_CIPHER *EVP_desx_cbc(void);
 639 EVP_CIPHER *EVP_rc4(void);
 640 EVP_CIPHER *EVP_rc4_40(void);
 641 EVP_CIPHER *EVP_idea_ecb(void);
 642 EVP_CIPHER *EVP_idea_cfb(void);
 643 EVP_CIPHER *EVP_idea_ofb(void);
 644 EVP_CIPHER *EVP_idea_cbc(void);
 645 EVP_CIPHER *EVP_rc2_ecb(void);
 646 EVP_CIPHER *EVP_rc2_cbc(void);
 647 EVP_CIPHER *EVP_rc2_40_cbc(void);
 648 EVP_CIPHER *EVP_rc2_64_cbc(void);
 649 EVP_CIPHER *EVP_rc2_cfb(void);
 650 EVP_CIPHER *EVP_rc2_ofb(void);
 651 EVP_CIPHER *EVP_bf_ecb(void);
 652 EVP_CIPHER *EVP_bf_cbc(void);
 653 EVP_CIPHER *EVP_bf_cfb(void);
 654 EVP_CIPHER *EVP_bf_ofb(void);
 655 EVP_CIPHER *EVP_cast5_ecb(void);
 656 EVP_CIPHER *EVP_cast5_cbc(void);
 657 EVP_CIPHER *EVP_cast5_cfb(void);
 658 EVP_CIPHER *EVP_cast5_ofb(void);
 659 EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
 660 EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
 661 EVP_CIPHER *EVP_rc5_32_12_16_cfb(void);
 662 EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
 663
 664 void OpenSSL_add_all_algorithms(void);
 665 void OpenSSL_add_all_ciphers(void);
 666 void OpenSSL_add_all_digests(void);
 667 #define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
 668 #define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
 669 #define SSLeay_add_all_digests() OpenSSL_add_all_digests()
 670
 671 int EVP_add_cipher(EVP_CIPHER *cipher);
 672 int EVP_add_digest(EVP_MD *digest);
 673
 674 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
 675 const EVP_MD *EVP_get_digestbyname(const char *name);
 676 void EVP_cleanup(void);
 677
 678 int             EVP_PKEY_decrypt(unsigned char *dec_key,unsigned char *enc_key,
 679                         int enc_key_len,EVP_PKEY *private_key);
 680 int             EVP_PKEY_encrypt(unsigned char *enc_key,
 681                         unsigned char *key,int key_len,EVP_PKEY *pub_key);
 682 int             EVP_PKEY_type(int type);
 683 int             EVP_PKEY_bits(EVP_PKEY *pkey);
 684 int             EVP_PKEY_size(EVP_PKEY *pkey);
 685 int             EVP_PKEY_assign(EVP_PKEY *pkey,int type,char *key);
 686 #ifndef NO_RSA
 687 int             EVP_PKEY_set1_RSA(EVP_PKEY *pkey,RSA *key);
 688 RSA *           EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
 689 #endif
 690 #ifndef NO_DSA
 691 int             EVP_PKEY_set1_DSA(EVP_PKEY *pkey,DSA *key);
 692 DSA *           EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
 693 #endif
 694 #ifndef NO_DH
 695 int             EVP_PKEY_set1_DH(EVP_PKEY *pkey,DH *key);
 696 DH *            EVP_PKEY_get1_DH(EVP_PKEY *pkey);
 697 #endif
 698 EVP_PKEY *      EVP_PKEY_new(void);
 699 void            EVP_PKEY_free(EVP_PKEY *pkey);
 700 EVP_PKEY *      d2i_PublicKey(int type,EVP_PKEY **a, unsigned char **pp,
 701                         long length);
 702 int             i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
 703
 704 EVP_PKEY *      d2i_PrivateKey(int type,EVP_PKEY **a, unsigned char **pp,
 705                         long length);
 706 EVP_PKEY *      d2i_AutoPrivateKey(EVP_PKEY **a, unsigned char **pp,
 707                         long length);
 708 int             i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
 709
 710 int EVP_PKEY_copy_parameters(EVP_PKEY *to,EVP_PKEY *from);
 711 int EVP_PKEY_missing_parameters(EVP_PKEY *pkey);
 712 int EVP_PKEY_save_parameters(EVP_PKEY *pkey,int mode);
 713 int EVP_PKEY_cmp_parameters(EVP_PKEY *a,EVP_PKEY *b);
 714
 715 int EVP_CIPHER_type(const EVP_CIPHER *ctx);
 716
 717 /* calls methods */
 718 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 719 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 720
 721 /* These are used by EVP_CIPHER methods */
 722 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
 723 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
 724
 725 /* PKCS5 password based encryption */
 726 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 727                          ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
 728                          int en_de);
 729 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
 730                            unsigned char *salt, int saltlen, int iter,
 731                            int keylen, unsigned char *out);
 732 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 733                          ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
 734                          int en_de);
 735
 736 void PKCS5_PBE_add(void);
 737
 738 int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
 739              ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
 740 int EVP_PBE_alg_add(int nid, EVP_CIPHER *cipher, EVP_MD *md,
 741                     EVP_PBE_KEYGEN *keygen);
 742 void EVP_PBE_cleanup(void);
 743
 744 /* BEGIN ERROR CODES */
 745 /* The following lines are auto generated by the script mkerr.pl. Any changes
 746  * made after this point may be overwritten when the script is next run.
 747  */
 748
 749 /* Error codes for the EVP functions. */
 750
 751 /* Function codes. */
 752 #define EVP_F_D2I_PKEY                                   100
 753 #define EVP_F_EVP_CIPHERINIT                             123
 754 #define EVP_F_EVP_CIPHER_CTX_CTRL                        124
 755 #define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH              122
 756 #define EVP_F_EVP_DECRYPTFINAL                           101
 757 #define EVP_F_EVP_MD_CTX_COPY                            110
 758 #define EVP_F_EVP_OPENINIT                               102
 759 #define EVP_F_EVP_PBE_ALG_ADD                            115
 760 #define EVP_F_EVP_PBE_CIPHERINIT                         116
 761 #define EVP_F_EVP_PKCS82PKEY                             111
 762 #define EVP_F_EVP_PKCS8_SET_BROKEN                       112
 763 #define EVP_F_EVP_PKEY2PKCS8                             113
 764 #define EVP_F_EVP_PKEY_COPY_PARAMETERS                   103
 765 #define EVP_F_EVP_PKEY_DECRYPT                           104
 766 #define EVP_F_EVP_PKEY_ENCRYPT                           105
 767 #define EVP_F_EVP_PKEY_GET1_DH                           119
 768 #define EVP_F_EVP_PKEY_GET1_DSA                          120
 769 #define EVP_F_EVP_PKEY_GET1_RSA                          121
 770 #define EVP_F_EVP_PKEY_NEW                               106
 771 #define EVP_F_EVP_SIGNFINAL                              107
 772 #define EVP_F_EVP_VERIFYFINAL                            108
 773 #define EVP_F_PKCS5_PBE_KEYIVGEN                         117
 774 #define EVP_F_PKCS5_V2_PBE_KEYIVGEN                      118
 775 #define EVP_F_RC2_MAGIC_TO_METH                          109
 776 #define EVP_F_RC5_CTRL                                   125
 777
 778 /* Reason codes. */
 779 #define EVP_R_BAD_DECRYPT                                100
 780 #define EVP_R_BN_DECODE_ERROR                            112
 781 #define EVP_R_BN_PUBKEY_ERROR                            113
 782 #define EVP_R_CIPHER_PARAMETER_ERROR                     122
 783 #define EVP_R_CTRL_NOT_IMPLEMENTED                       132
 784 #define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED             133
 785 #define EVP_R_DECODE_ERROR                               114
 786 #define EVP_R_DIFFERENT_KEY_TYPES                        101
 787 #define EVP_R_ENCODE_ERROR                               115
 788 #define EVP_R_EVP_PBE_CIPHERINIT_ERROR                   119
 789 #define EVP_R_EXPECTING_AN_RSA_KEY                       127
 790 #define EVP_R_EXPECTING_A_DH_KEY                         128
 791 #define EVP_R_EXPECTING_A_DSA_KEY                        129
 792 #define EVP_R_INITIALIZATION_ERROR                       134
 793 #define EVP_R_INPUT_NOT_INITIALIZED                      111
 794 #define EVP_R_INVALID_KEY_LENGTH                         130
 795 #define EVP_R_IV_TOO_LARGE                               102
 796 #define EVP_R_KEYGEN_FAILURE                             120
 797 #define EVP_R_MISSING_PARAMETERS                         103
 798 #define EVP_R_NO_CIPHER_SET                              131
 799 #define EVP_R_NO_DSA_PARAMETERS                          116
 800 #define EVP_R_NO_SIGN_FUNCTION_CONFIGURED                104
 801 #define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED              105
 802 #define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE                  117
 803 #define EVP_R_PUBLIC_KEY_NOT_RSA                         106
 804 #define EVP_R_UNKNOWN_PBE_ALGORITHM                      121
 805 #define EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS                135
 806 #define EVP_R_UNSUPPORTED_CIPHER                         107
 807 #define EVP_R_UNSUPPORTED_KEYLENGTH                      123
 808 #define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION        124
 809 #define EVP_R_UNSUPPORTED_KEY_SIZE                       108
 810 #define EVP_R_UNSUPPORTED_PRF                            125
 811 #define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM          118
 812 #define EVP_R_UNSUPPORTED_SALT_TYPE                      126
 813 #define EVP_R_WRONG_FINAL_BLOCK_LENGTH                   109
 814 #define EVP_R_WRONG_PUBLIC_KEY_TYPE                      110
 815
 816 #ifdef  __cplusplus
 817 }
 818 #endif
 819 #endif
 820