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 #ifndef NO_MD2
  63 #include <openssl/md2.h>
  64 #endif
  65 #ifndef NO_MD5
  66 #include <openssl/md5.h>
  67 #endif
  68 #ifndef NO_SHA
  69 #include <openssl/sha.h>
  70 #endif
  71 #ifndef NO_RIPEMD
  72 #include <openssl/ripemd.h>
  73 #endif
  74 #ifndef NO_DES
  75 #include <openssl/des.h>
  76 #endif
  77 #ifndef NO_RC4
  78 #include <openssl/rc4.h>
  79 #endif
  80 #ifndef NO_RC2
  81 #include <openssl/rc2.h>
  82 #endif
  83 #ifndef NO_RC5
  84 #include <openssl/rc5.h>
  85 #endif
  86 #ifndef NO_BF
  87 #include <openssl/blowfish.h>
  88 #endif
  89 #ifndef NO_CAST
  90 #include <openssl/cast.h>
  91 #endif
  92 #ifndef NO_IDEA
  93 #include <openssl/idea.h>
  94 #endif
  95 #ifndef NO_MDC2
  96 #include <openssl/mdc2.h>
  97 #endif
  98
  99 #define EVP_RC2_KEY_SIZE                16
 100 #define EVP_RC4_KEY_SIZE                16
 101 #define EVP_BLOWFISH_KEY_SIZE           16
 102 #define EVP_CAST5_KEY_SIZE              16
 103 #define EVP_RC5_32_12_16_KEY_SIZE       16
 104 #define EVP_MAX_MD_SIZE                 (16+20) /* The SSLv3 md5+sha1 type */
 105 #define EVP_MAX_KEY_LENGTH              24
 106 #define EVP_MAX_IV_LENGTH               8
 107
 108 #define PKCS5_SALT_LEN                  8
 109 /* Default PKCS#5 iteration count */
 110 #define PKCS5_DEFAULT_ITER              2048
 111
 112 #ifndef NO_RSA
 113 #include <openssl/rsa.h>
 114 #endif
 115
 116 #ifndef NO_DSA
 117 #include <openssl/dsa.h>
 118 #endif
 119
 120 #ifndef NO_DH
 121 #include <openssl/dh.h>
 122 #endif
 123
 124 #include <openssl/objects.h>
 125
 126 #define EVP_PK_RSA      0x0001
 127 #define EVP_PK_DSA      0x0002
 128 #define EVP_PK_DH       0x0004
 129 #define EVP_PKT_SIGN    0x0010
 130 #define EVP_PKT_ENC     0x0020
 131 #define EVP_PKT_EXCH    0x0040
 132 #define EVP_PKS_RSA     0x0100
 133 #define EVP_PKS_DSA     0x0200
 134 #define EVP_PKT_EXP     0x1000 /* <= 512 bit key */
 135
 136 #define EVP_PKEY_NONE   NID_undef
 137 #define EVP_PKEY_RSA    NID_rsaEncryption
 138 #define EVP_PKEY_RSA2   NID_rsa
 139 #define EVP_PKEY_DSA    NID_dsa
 140 #define EVP_PKEY_DSA1   NID_dsa_2
 141 #define EVP_PKEY_DSA2   NID_dsaWithSHA
 142 #define EVP_PKEY_DSA3   NID_dsaWithSHA1
 143 #define EVP_PKEY_DSA4   NID_dsaWithSHA1_2
 144 #define EVP_PKEY_DH     NID_dhKeyAgreement
 145
 146 #ifdef  __cplusplus
 147 extern "C" {
 148 #endif
 149
 150 /* Type needs to be a bit field
 151  * Sub-type needs to be for variations on the method, as in, can it do
 152  * arbitrary encryption.... */
 153 typedef struct evp_pkey_st
 154         {
 155         int type;
 156         int save_type;
 157         int references;
 158         union   {
 159                 char *ptr;
 160 #ifndef NO_RSA
 161                 struct rsa_st *rsa;     /* RSA */
 162 #endif
 163 #ifndef NO_DSA
 164                 struct dsa_st *dsa;     /* DSA */
 165 #endif
 166 #ifndef NO_DH
 167                 struct dh_st *dh;       /* DH */
 168 #endif
 169                 } pkey;
 170         int save_parameters;
 171         STACK /*X509_ATTRIBUTE*/ *attributes; /* [ 0 ] */
 172         } EVP_PKEY;
 173
 174 #define EVP_PKEY_MO_SIGN        0x0001
 175 #define EVP_PKEY_MO_VERIFY      0x0002
 176 #define EVP_PKEY_MO_ENCRYPT     0x0004
 177 #define EVP_PKEY_MO_DECRYPT     0x0008
 178
 179 #if 0
 180 /* This structure is required to tie the message digest and signing together.
 181  * The lookup can be done by md/pkey_method, oid, oid/pkey_method, or
 182  * oid, md and pkey.
 183  * This is required because for various smart-card perform the digest and
 184  * signing/verification on-board.  To handle this case, the specific
 185  * EVP_MD and EVP_PKEY_METHODs need to be closely associated.
 186  * When a PKEY is created, it will have a EVP_PKEY_METHOD associated with it.
 187  * This can either be software or a token to provide the required low level
 188  * routines.
 189  */
 190 typedef struct evp_pkey_md_st
 191         {
 192         int oid;
 193         EVP_MD *md;
 194         EVP_PKEY_METHOD *pkey;
 195         } EVP_PKEY_MD;
 196
 197 #define EVP_rsa_md2() \
 198                 EVP_PKEY_MD_add(NID_md2WithRSAEncryption,\
 199                         EVP_rsa_pkcs1(),EVP_md2())
 200 #define EVP_rsa_md5() \
 201                 EVP_PKEY_MD_add(NID_md5WithRSAEncryption,\
 202                         EVP_rsa_pkcs1(),EVP_md5())
 203 #define EVP_rsa_sha0() \
 204                 EVP_PKEY_MD_add(NID_shaWithRSAEncryption,\
 205                         EVP_rsa_pkcs1(),EVP_sha())
 206 #define EVP_rsa_sha1() \
 207                 EVP_PKEY_MD_add(NID_sha1WithRSAEncryption,\
 208                         EVP_rsa_pkcs1(),EVP_sha1())
 209 #define EVP_rsa_ripemd160() \
 210                 EVP_PKEY_MD_add(NID_ripemd160WithRSA,\
 211                         EVP_rsa_pkcs1(),EVP_ripemd160())
 212 #define EVP_rsa_mdc2() \
 213                 EVP_PKEY_MD_add(NID_mdc2WithRSA,\
 214                         EVP_rsa_octet_string(),EVP_mdc2())
 215 #define EVP_dsa_sha() \
 216                 EVP_PKEY_MD_add(NID_dsaWithSHA,\
 217                         EVP_dsa(),EVP_mdc2())
 218 #define EVP_dsa_sha1() \
 219                 EVP_PKEY_MD_add(NID_dsaWithSHA1,\
 220                         EVP_dsa(),EVP_sha1())
 221
 222 typedef struct evp_pkey_method_st
 223         {
 224         char *name;
 225         int flags;
 226         int type;               /* RSA, DSA, an SSLeay specific constant */
 227         int oid;                /* For the pub-key type */
 228         int encrypt_oid;        /* pub/priv key encryption */
 229
 230         int (*sign)();
 231         int (*verify)();
 232         struct  {
 233                 int
 234                 int (*set)();   /* get and/or set the underlying type */
 235                 int (*get)();
 236                 int (*encrypt)();
 237                 int (*decrypt)();
 238                 int (*i2d)();
 239                 int (*d2i)();
 240                 int (*dup)();
 241                 } pub,priv;
 242         int (*set_asn1_parameters)();
 243         int (*get_asn1_parameters)();
 244         } EVP_PKEY_METHOD;
 245 #endif
 246
 247 #ifndef EVP_MD
 248 typedef struct env_md_st
 249         {
 250         int type;
 251         int pkey_type;
 252         int md_size;
 253         void (*init)();
 254         void (*update)();
 255         void (*final)();
 256
 257         int (*sign)();
 258         int (*verify)();
 259         int required_pkey_type[5]; /*EVP_PKEY_xxx */
 260         int block_size;
 261         int ctx_size; /* how big does the ctx need to be */
 262         } EVP_MD;
 263
 264
 265
 266 #define EVP_PKEY_NULL_method    NULL,NULL,{0,0,0,0}
 267
 268 #ifndef NO_DSA
 269 #define EVP_PKEY_DSA_method     DSA_sign,DSA_verify, \
 270                                 {EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
 271                                         EVP_PKEY_DSA4,0}
 272 #else
 273 #define EVP_PKEY_DSA_method     EVP_PKEY_NULL_method
 274 #endif
 275
 276 #ifndef NO_RSA
 277 #define EVP_PKEY_RSA_method     RSA_sign,RSA_verify, \
 278                                 {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
 279 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
 280                                 RSA_sign_ASN1_OCTET_STRING, \
 281                                 RSA_verify_ASN1_OCTET_STRING, \
 282                                 {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
 283 #else
 284 #define EVP_PKEY_RSA_method     EVP_PKEY_NULL_method
 285 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
 286 #endif
 287
 288 #endif /* !EVP_MD */
 289
 290 typedef struct env_md_ctx_st
 291         {
 292         const EVP_MD *digest;
 293         union   {
 294                 unsigned char base[4];
 295 #ifndef NO_MD2
 296                 MD2_CTX md2;
 297 #endif
 298 #ifndef NO_MD5
 299                 MD5_CTX md5;
 300 #endif
 301 #ifndef NO_RIPEMD
 302                 RIPEMD160_CTX ripemd160;
 303 #endif
 304 #ifndef NO_SHA
 305                 SHA_CTX sha;
 306 #endif
 307 #ifndef NO_MDC2
 308                 MDC2_CTX mdc2;
 309 #endif
 310                 } md;
 311         } EVP_MD_CTX;
 312
 313 typedef struct evp_cipher_st
 314         {
 315         int nid;
 316         int block_size;
 317         int key_len;
 318         int iv_len;
 319         void (*init)();         /* init for encryption */
 320         void (*do_cipher)();    /* encrypt data */
 321         void (*cleanup)();      /* used by cipher method */
 322         int ctx_size;           /* how big the ctx needs to be */
 323         /* int set_asn1_parameters(EVP_CIPHER_CTX,ASN1_TYPE *); */
 324         int (*set_asn1_parameters)(); /* Populate a ASN1_TYPE with parameters */
 325         /* int get_asn1_parameters(EVP_CIPHER_CTX,ASN1_TYPE *); */
 326         int (*get_asn1_parameters)(); /* Get parameters from a ASN1_TYPE */
 327         } EVP_CIPHER;
 328
 329 typedef struct evp_cipher_info_st
 330         {
 331         const EVP_CIPHER *cipher;
 332         unsigned char iv[EVP_MAX_IV_LENGTH];
 333         } EVP_CIPHER_INFO;
 334
 335 typedef struct evp_cipher_ctx_st
 336         {
 337         const EVP_CIPHER *cipher;
 338         int encrypt;            /* encrypt or decrypt */
 339         int buf_len;            /* number we have left */
 340
 341         unsigned char  oiv[EVP_MAX_IV_LENGTH];  /* original iv */
 342         unsigned char  iv[EVP_MAX_IV_LENGTH];   /* working iv */
 343         unsigned char buf[EVP_MAX_IV_LENGTH];   /* saved partial block */
 344         int num;                                /* used by cfb/ofb mode */
 345
 346         char *app_data;         /* application stuff */
 347         union   {
 348 #ifndef NO_RC4
 349                 struct
 350                         {
 351                         unsigned char key[EVP_RC4_KEY_SIZE];
 352                         RC4_KEY ks;     /* working key */
 353                         } rc4;
 354 #endif
 355 #ifndef NO_DES
 356                 des_key_schedule des_ks;/* key schedule */
 357                 struct
 358                         {
 359                         des_key_schedule ks;/* key schedule */
 360                         des_cblock inw;
 361                         des_cblock outw;
 362                         } desx_cbc;
 363                 struct
 364                         {
 365                         des_key_schedule ks1;/* key schedule */
 366                         des_key_schedule ks2;/* key schedule (for ede) */
 367                         des_key_schedule ks3;/* key schedule (for ede3) */
 368                         } des_ede;
 369 #endif
 370 #ifndef NO_IDEA
 371                 IDEA_KEY_SCHEDULE idea_ks;/* key schedule */
 372 #endif
 373 #ifndef NO_RC2
 374                 RC2_KEY rc2_ks;/* key schedule */
 375 #endif
 376 #ifndef NO_RC5
 377                 RC5_32_KEY rc5_ks;/* key schedule */
 378 #endif
 379 #ifndef NO_BF
 380                 BF_KEY bf_ks;/* key schedule */
 381 #endif
 382 #ifndef NO_CAST
 383                 CAST_KEY cast_ks;/* key schedule */
 384 #endif
 385                 } c;
 386         } EVP_CIPHER_CTX;
 387
 388 typedef struct evp_Encode_Ctx_st
 389         {
 390         int num;        /* number saved in a partial encode/decode */
 391         int length;     /* The length is either the output line length
 392                          * (in input bytes) or the shortest input line
 393                          * length that is ok.  Once decoding begins,
 394                          * the length is adjusted up each time a longer
 395                          * line is decoded */
 396         unsigned char enc_data[80];     /* data to encode */
 397         int line_num;   /* number read on current line */
 398         int expect_nl;
 399         } EVP_ENCODE_CTX;
 400
 401 /* Password based encryption function */
 402 typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 403                 ASN1_TYPE *param, EVP_CIPHER *cipher,
 404                 EVP_MD *md, int en_de);
 405
 406 #define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
 407                                         (char *)(rsa))
 408 #define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
 409                                         (char *)(dsa))
 410 #define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
 411                                         (char *)(dh))
 412
 413 /* Add some extra combinations */
 414 #define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
 415 #define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
 416 #define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
 417 #define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
 418
 419 #define EVP_MD_type(e)                  ((e)->type)
 420 #define EVP_MD_pkey_type(e)             ((e)->pkey_type)
 421 #define EVP_MD_size(e)                  ((e)->md_size)
 422 #define EVP_MD_block_size(e)            ((e)->block_size)
 423
 424 #define EVP_MD_CTX_md(e)                ((e)->digest)
 425 #define EVP_MD_CTX_size(e)              EVP_MD_size((e)->digest)
 426 #define EVP_MD_CTX_block_size(e)        EVP_MD_block_size((e)->digest)
 427 #define EVP_MD_CTX_type(e)              EVP_MD_type((e)->digest)
 428
 429 #define EVP_CIPHER_nid(e)               ((e)->nid)
 430 #define EVP_CIPHER_block_size(e)        ((e)->block_size)
 431 #define EVP_CIPHER_key_length(e)        ((e)->key_len)
 432 #define EVP_CIPHER_iv_length(e)         ((e)->iv_len)
 433
 434 #define EVP_CIPHER_CTX_cipher(e)        ((e)->cipher)
 435 #define EVP_CIPHER_CTX_nid(e)           ((e)->cipher->nid)
 436 #define EVP_CIPHER_CTX_block_size(e)    ((e)->cipher->block_size)
 437 #define EVP_CIPHER_CTX_key_length(e)    ((e)->cipher->key_len)
 438 #define EVP_CIPHER_CTX_iv_length(e)     ((e)->cipher->iv_len)
 439 #define EVP_CIPHER_CTX_get_app_data(e)  ((e)->app_data)
 440 #define EVP_CIPHER_CTX_set_app_data(e,d) ((e)->app_data=(char *)(d))
 441 #define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
 442
 443 #define EVP_ENCODE_LENGTH(l)    (((l+2)/3*4)+(l/48+1)*2+80)
 444 #define EVP_DECODE_LENGTH(l)    ((l+3)/4*3+80)
 445
 446 #define EVP_SignInit(a,b)               EVP_DigestInit(a,b)
 447 #define EVP_SignUpdate(a,b,c)           EVP_DigestUpdate(a,b,c)
 448 #define EVP_VerifyInit(a,b)             EVP_DigestInit(a,b)
 449 #define EVP_VerifyUpdate(a,b,c)         EVP_DigestUpdate(a,b,c)
 450 #define EVP_OpenUpdate(a,b,c,d,e)       EVP_DecryptUpdate(a,b,c,d,e)
 451 #define EVP_SealUpdate(a,b,c,d,e)       EVP_EncryptUpdate(a,b,c,d,e)
 452
 453 #ifdef CONST_STRICT
 454 void BIO_set_md(BIO *,const EVP_MD *md);
 455 #else
 456 # define BIO_set_md(b,md)               BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
 457 #endif
 458 #define BIO_get_md(b,mdp)               BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
 459 #define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
 460 #define BIO_get_cipher_status(b)        BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
 461 #define BIO_get_cipher_ctx(b,c_pp)      BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
 462
 463 #define EVP_Cipher(c,o,i,l)     (c)->cipher->do_cipher((c),(o),(i),(l))
 464
 465 #define EVP_add_cipher_alias(n,alias) \
 466         OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
 467 #define EVP_add_digest_alias(n,alias) \
 468         OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
 469 #define EVP_delete_cipher_alias(alias) \
 470         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
 471 #define EVP_delete_digest_alias(alias) \
 472         OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
 473
 474
 475 int     EVP_MD_CTX_copy(EVP_MD_CTX *out,EVP_MD_CTX *in);
 476 void    EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
 477 void    EVP_DigestUpdate(EVP_MD_CTX *ctx,const void *d,
 478                          unsigned int cnt);
 479 void    EVP_DigestFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
 480
 481 int     EVP_read_pw_string(char *buf,int length,const char *prompt,int verify);
 482 void    EVP_set_pw_prompt(char *prompt);
 483 char *  EVP_get_pw_prompt(void);
 484
 485 int     EVP_BytesToKey(const EVP_CIPHER *type,EVP_MD *md,unsigned char *salt,
 486                 unsigned char *data, int datal, int count,
 487                 unsigned char *key,unsigned char *iv);
 488
 489 void    EVP_EncryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
 490                 unsigned char *key, unsigned char *iv);
 491 void    EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
 492                 int *outl, unsigned char *in, int inl);
 493 void    EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
 494
 495 void    EVP_DecryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
 496                 unsigned char *key, unsigned char *iv);
 497 void    EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
 498                 int *outl, unsigned char *in, int inl);
 499 int     EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
 500
 501 void    EVP_CipherInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
 502                        unsigned char *key,unsigned char *iv,int enc);
 503 void    EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
 504                 int *outl, unsigned char *in, int inl);
 505 int     EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
 506
 507 int     EVP_SignFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s,
 508                 EVP_PKEY *pkey);
 509
 510 int     EVP_VerifyFinal(EVP_MD_CTX *ctx,unsigned char *sigbuf,
 511                 unsigned int siglen,EVP_PKEY *pkey);
 512
 513 int     EVP_OpenInit(EVP_CIPHER_CTX *ctx,EVP_CIPHER *type,unsigned char *ek,
 514                 int ekl,unsigned char *iv,EVP_PKEY *priv);
 515 int     EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
 516
 517 int     EVP_SealInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char **ek,
 518                 int *ekl, unsigned char *iv,EVP_PKEY **pubk, int npubk);
 519 void    EVP_SealFinal(EVP_CIPHER_CTX *ctx,unsigned char *out,int *outl);
 520
 521 void    EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
 522 void    EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,
 523                 int *outl,unsigned char *in,int inl);
 524 void    EVP_EncodeFinal(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl);
 525 int     EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
 526
 527 void    EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
 528 int     EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
 529                 unsigned char *in, int inl);
 530 int     EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
 531                 char *out, int *outl);
 532 int     EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
 533
 534 void    ERR_load_EVP_strings(void );
 535
 536 void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
 537 void EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
 538
 539 #ifdef HEADER_BIO_H
 540 BIO_METHOD *BIO_f_md(void);
 541 BIO_METHOD *BIO_f_base64(void);
 542 BIO_METHOD *BIO_f_cipher(void);
 543 BIO_METHOD *BIO_f_reliable(void);
 544 void BIO_set_cipher(BIO *b,const EVP_CIPHER *c,unsigned char *k,
 545         unsigned char *i, int enc);
 546 #endif
 547
 548 EVP_MD *EVP_md_null(void);
 549 EVP_MD *EVP_md2(void);
 550 EVP_MD *EVP_md5(void);
 551 EVP_MD *EVP_sha(void);
 552 EVP_MD *EVP_sha1(void);
 553 EVP_MD *EVP_dss(void);
 554 EVP_MD *EVP_dss1(void);
 555 EVP_MD *EVP_mdc2(void);
 556 EVP_MD *EVP_ripemd160(void);
 557
 558 EVP_CIPHER *EVP_enc_null(void);         /* does nothing :-) */
 559 EVP_CIPHER *EVP_des_ecb(void);
 560 EVP_CIPHER *EVP_des_ede(void);
 561 EVP_CIPHER *EVP_des_ede3(void);
 562 EVP_CIPHER *EVP_des_cfb(void);
 563 EVP_CIPHER *EVP_des_ede_cfb(void);
 564 EVP_CIPHER *EVP_des_ede3_cfb(void);
 565 EVP_CIPHER *EVP_des_ofb(void);
 566 EVP_CIPHER *EVP_des_ede_ofb(void);
 567 EVP_CIPHER *EVP_des_ede3_ofb(void);
 568 EVP_CIPHER *EVP_des_cbc(void);
 569 EVP_CIPHER *EVP_des_ede_cbc(void);
 570 EVP_CIPHER *EVP_des_ede3_cbc(void);
 571 EVP_CIPHER *EVP_desx_cbc(void);
 572 EVP_CIPHER *EVP_rc4(void);
 573 EVP_CIPHER *EVP_rc4_40(void);
 574 EVP_CIPHER *EVP_idea_ecb(void);
 575 EVP_CIPHER *EVP_idea_cfb(void);
 576 EVP_CIPHER *EVP_idea_ofb(void);
 577 EVP_CIPHER *EVP_idea_cbc(void);
 578 EVP_CIPHER *EVP_rc2_ecb(void);
 579 EVP_CIPHER *EVP_rc2_cbc(void);
 580 EVP_CIPHER *EVP_rc2_40_cbc(void);
 581 EVP_CIPHER *EVP_rc2_64_cbc(void);
 582 EVP_CIPHER *EVP_rc2_cfb(void);
 583 EVP_CIPHER *EVP_rc2_ofb(void);
 584 EVP_CIPHER *EVP_bf_ecb(void);
 585 EVP_CIPHER *EVP_bf_cbc(void);
 586 EVP_CIPHER *EVP_bf_cfb(void);
 587 EVP_CIPHER *EVP_bf_ofb(void);
 588 EVP_CIPHER *EVP_cast5_ecb(void);
 589 EVP_CIPHER *EVP_cast5_cbc(void);
 590 EVP_CIPHER *EVP_cast5_cfb(void);
 591 EVP_CIPHER *EVP_cast5_ofb(void);
 592 EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
 593 EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
 594 EVP_CIPHER *EVP_rc5_32_12_16_cfb(void);
 595 EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
 596
 597 void OpenSSL_add_all_algorithms(void);
 598 void OpenSSL_add_all_ciphers(void);
 599 void OpenSSL_add_all_digests(void);
 600 #define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
 601 #define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
 602 #define SSLeay_add_all_digests() OpenSSL_add_all_digests()
 603
 604 int EVP_add_cipher(EVP_CIPHER *cipher);
 605 int EVP_add_digest(EVP_MD *digest);
 606
 607 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
 608 const EVP_MD *EVP_get_digestbyname(const char *name);
 609 void EVP_cleanup(void);
 610
 611 int             EVP_PKEY_decrypt(unsigned char *dec_key,unsigned char *enc_key,
 612                         int enc_key_len,EVP_PKEY *private_key);
 613 int             EVP_PKEY_encrypt(unsigned char *enc_key,
 614                         unsigned char *key,int key_len,EVP_PKEY *pub_key);
 615 int             EVP_PKEY_type(int type);
 616 int             EVP_PKEY_bits(EVP_PKEY *pkey);
 617 int             EVP_PKEY_size(EVP_PKEY *pkey);
 618 int             EVP_PKEY_assign(EVP_PKEY *pkey,int type,char *key);
 619 #ifndef NO_RSA
 620 int             EVP_PKEY_set1_RSA(EVP_PKEY *pkey,RSA *key);
 621 RSA *           EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
 622 #endif
 623 #ifndef NO_DSA
 624 int             EVP_PKEY_set1_DSA(EVP_PKEY *pkey,DSA *key);
 625 DSA *           EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
 626 #endif
 627 #ifndef NO_DH
 628 int             EVP_PKEY_set1_DH(EVP_PKEY *pkey,DH *key);
 629 DH *            EVP_PKEY_get1_DH(EVP_PKEY *pkey);
 630 #endif
 631 EVP_PKEY *      EVP_PKEY_new(void);
 632 void            EVP_PKEY_free(EVP_PKEY *pkey);
 633 EVP_PKEY *      d2i_PublicKey(int type,EVP_PKEY **a, unsigned char **pp,
 634                         long length);
 635 int             i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
 636
 637 EVP_PKEY *      d2i_PrivateKey(int type,EVP_PKEY **a, unsigned char **pp,
 638                         long length);
 639 EVP_PKEY *      d2i_AutoPrivateKey(EVP_PKEY **a, unsigned char **pp,
 640                         long length);
 641 int             i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
 642
 643 int EVP_PKEY_copy_parameters(EVP_PKEY *to,EVP_PKEY *from);
 644 int EVP_PKEY_missing_parameters(EVP_PKEY *pkey);
 645 int EVP_PKEY_save_parameters(EVP_PKEY *pkey,int mode);
 646 int EVP_PKEY_cmp_parameters(EVP_PKEY *a,EVP_PKEY *b);
 647
 648 int EVP_CIPHER_type(const EVP_CIPHER *ctx);
 649
 650 /* calls methods */
 651 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 652 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
 653
 654 /* These are used by EVP_CIPHER methods */
 655 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
 656 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
 657
 658 /* PKCS5 password based encryption */
 659 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 660                          ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
 661                          int en_de);
 662 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
 663                            unsigned char *salt, int saltlen, int iter,
 664                            int keylen, unsigned char *out);
 665 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 666                          ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
 667                          int en_de);
 668
 669 void PKCS5_PBE_add(void);
 670
 671 int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
 672              ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
 673 int EVP_PBE_alg_add(int nid, EVP_CIPHER *cipher, EVP_MD *md,
 674                     EVP_PBE_KEYGEN *keygen);
 675 void EVP_PBE_cleanup(void);
 676
 677 /* BEGIN ERROR CODES */
 678 /* The following lines are auto generated by the script mkerr.pl. Any changes
 679  * made after this point may be overwritten when the script is next run.
 680  */
 681
 682 /* Error codes for the EVP functions. */
 683
 684 /* Function codes. */
 685 #define EVP_F_D2I_PKEY                                   100
 686 #define EVP_F_EVP_DECRYPTFINAL                           101
 687 #define EVP_F_EVP_MD_CTX_COPY                            110
 688 #define EVP_F_EVP_OPENINIT                               102
 689 #define EVP_F_EVP_PBE_ALG_ADD                            115
 690 #define EVP_F_EVP_PBE_CIPHERINIT                         116
 691 #define EVP_F_EVP_PKCS82PKEY                             111
 692 #define EVP_F_EVP_PKCS8_SET_BROKEN                       112
 693 #define EVP_F_EVP_PKEY2PKCS8                             113
 694 #define EVP_F_EVP_PKEY_COPY_PARAMETERS                   103
 695 #define EVP_F_EVP_PKEY_DECRYPT                           104
 696 #define EVP_F_EVP_PKEY_ENCRYPT                           105
 697 #define EVP_F_EVP_PKEY_GET1_DH                           119
 698 #define EVP_F_EVP_PKEY_GET1_DSA                          120
 699 #define EVP_F_EVP_PKEY_GET1_RSA                          121
 700 #define EVP_F_EVP_PKEY_NEW                               106
 701 #define EVP_F_EVP_SIGNFINAL                              107
 702 #define EVP_F_EVP_VERIFYFINAL                            108
 703 #define EVP_F_PKCS5_PBE_KEYIVGEN                         117
 704 #define EVP_F_PKCS5_V2_PBE_KEYIVGEN                      118
 705 #define EVP_F_RC2_MAGIC_TO_METH                          109
 706
 707 /* Reason codes. */
 708 #define EVP_R_BAD_DECRYPT                                100
 709 #define EVP_R_BN_DECODE_ERROR                            112
 710 #define EVP_R_BN_PUBKEY_ERROR                            113
 711 #define EVP_R_CIPHER_PARAMETER_ERROR                     122
 712 #define EVP_R_DECODE_ERROR                               114
 713 #define EVP_R_DIFFERENT_KEY_TYPES                        101
 714 #define EVP_R_ENCODE_ERROR                               115
 715 #define EVP_R_EVP_PBE_CIPHERINIT_ERROR                   119
 716 #define EVP_R_EXPECTING_AN_RSA_KEY                       127
 717 #define EVP_R_EXPECTING_A_DH_KEY                         128
 718 #define EVP_R_EXPECTING_A_DSA_KEY                        129
 719 #define EVP_R_INPUT_NOT_INITIALIZED                      111
 720 #define EVP_R_IV_TOO_LARGE                               102
 721 #define EVP_R_KEYGEN_FAILURE                             120
 722 #define EVP_R_MISSING_PARAMETERS                         103
 723 #define EVP_R_NO_DSA_PARAMETERS                          116
 724 #define EVP_R_NO_SIGN_FUNCTION_CONFIGURED                104
 725 #define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED              105
 726 #define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE                  117
 727 #define EVP_R_PUBLIC_KEY_NOT_RSA                         106
 728 #define EVP_R_UNKNOWN_PBE_ALGORITHM                      121
 729 #define EVP_R_UNSUPPORTED_CIPHER                         107
 730 #define EVP_R_UNSUPPORTED_KEYLENGTH                      123
 731 #define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION        124
 732 #define EVP_R_UNSUPPORTED_KEY_SIZE                       108
 733 #define EVP_R_UNSUPPORTED_PRF                            125
 734 #define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM          118
 735 #define EVP_R_UNSUPPORTED_SALT_TYPE                      126
 736 #define EVP_R_WRONG_FINAL_BLOCK_LENGTH                   109
 737 #define EVP_R_WRONG_PUBLIC_KEY_TYPE                      110
 738
 739 #ifdef  __cplusplus
 740 }
 741 #endif
 742 #endif
 743