diff options
Diffstat (limited to 'src/lib/libcrypto/pem/pem_lib.c')
| -rw-r--r-- | src/lib/libcrypto/pem/pem_lib.c | 762 |
1 files changed, 762 insertions, 0 deletions
diff --git a/src/lib/libcrypto/pem/pem_lib.c b/src/lib/libcrypto/pem/pem_lib.c new file mode 100644 index 0000000000..7a2c0ad83b --- /dev/null +++ b/src/lib/libcrypto/pem/pem_lib.c | |||
| @@ -0,0 +1,762 @@ | |||
| 1 | /* crypto/pem/pem_lib.c */ | ||
| 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 | #include <stdio.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #include "buffer.h" | ||
| 62 | #include "objects.h" | ||
| 63 | #include "evp.h" | ||
| 64 | #include "rand.h" | ||
| 65 | #include "x509.h" | ||
| 66 | #include "pem.h" | ||
| 67 | #ifndef NO_DES | ||
| 68 | #include "des.h" | ||
| 69 | #endif | ||
| 70 | |||
| 71 | char *PEM_version="PEM part of SSLeay 0.9.0b 29-Jun-1998"; | ||
| 72 | |||
| 73 | #define MIN_LENGTH 4 | ||
| 74 | |||
| 75 | /* PEMerr(PEM_F_PEM_WRITE_BIO,ERR_R_MALLOC_FAILURE); | ||
| 76 | * PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
| 77 | */ | ||
| 78 | |||
| 79 | #ifndef NOPROTO | ||
| 80 | static int def_callback(char *buf, int num, int w); | ||
| 81 | static int load_iv(unsigned char **fromp,unsigned char *to, int num); | ||
| 82 | #else | ||
| 83 | static int def_callback(); | ||
| 84 | static int load_iv(); | ||
| 85 | #endif | ||
| 86 | |||
| 87 | static int def_callback(buf, num, w) | ||
| 88 | char *buf; | ||
| 89 | int num; | ||
| 90 | int w; | ||
| 91 | { | ||
| 92 | #ifdef NO_FP_API | ||
| 93 | /* We should not ever call the default callback routine from | ||
| 94 | * windows. */ | ||
| 95 | PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | ||
| 96 | return(-1); | ||
| 97 | #else | ||
| 98 | int i,j; | ||
| 99 | char *prompt; | ||
| 100 | |||
| 101 | prompt=EVP_get_pw_prompt(); | ||
| 102 | if (prompt == NULL) | ||
| 103 | prompt="Enter PEM pass phrase:"; | ||
| 104 | |||
| 105 | for (;;) | ||
| 106 | { | ||
| 107 | i=EVP_read_pw_string(buf,num,prompt,w); | ||
| 108 | if (i != 0) | ||
| 109 | { | ||
| 110 | PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD); | ||
| 111 | memset(buf,0,(unsigned int)num); | ||
| 112 | return(-1); | ||
| 113 | } | ||
| 114 | j=strlen(buf); | ||
| 115 | if (j < MIN_LENGTH) | ||
| 116 | { | ||
| 117 | fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH); | ||
| 118 | } | ||
| 119 | else | ||
| 120 | break; | ||
| 121 | } | ||
| 122 | return(j); | ||
| 123 | #endif | ||
| 124 | } | ||
| 125 | |||
| 126 | void PEM_proc_type(buf, type) | ||
| 127 | char *buf; | ||
| 128 | int type; | ||
| 129 | { | ||
| 130 | char *str; | ||
| 131 | |||
| 132 | if (type == PEM_TYPE_ENCRYPTED) | ||
| 133 | str="ENCRYPTED"; | ||
| 134 | else if (type == PEM_TYPE_MIC_CLEAR) | ||
| 135 | str="MIC-CLEAR"; | ||
| 136 | else if (type == PEM_TYPE_MIC_ONLY) | ||
| 137 | str="MIC-ONLY"; | ||
| 138 | else | ||
| 139 | str="BAD-TYPE"; | ||
| 140 | |||
| 141 | strcat(buf,"Proc-Type: 4,"); | ||
| 142 | strcat(buf,str); | ||
| 143 | strcat(buf,"\n"); | ||
| 144 | } | ||
| 145 | |||
| 146 | void PEM_dek_info(buf, type, len, str) | ||
| 147 | char *buf; | ||
| 148 | char *type; | ||
| 149 | int len; | ||
| 150 | char *str; | ||
| 151 | { | ||
| 152 | static unsigned char map[17]="0123456789ABCDEF"; | ||
| 153 | long i; | ||
| 154 | int j; | ||
| 155 | |||
| 156 | strcat(buf,"DEK-Info: "); | ||
| 157 | strcat(buf,type); | ||
| 158 | strcat(buf,","); | ||
| 159 | j=strlen(buf); | ||
| 160 | for (i=0; i<len; i++) | ||
| 161 | { | ||
| 162 | buf[j+i*2] =map[(str[i]>>4)&0x0f]; | ||
| 163 | buf[j+i*2+1]=map[(str[i] )&0x0f]; | ||
| 164 | } | ||
| 165 | buf[j+i*2]='\n'; | ||
| 166 | buf[j+i*2+1]='\0'; | ||
| 167 | } | ||
| 168 | |||
| 169 | #ifndef NO_FP_API | ||
| 170 | char *PEM_ASN1_read(d2i,name,fp, x, cb) | ||
| 171 | char *(*d2i)(); | ||
| 172 | char *name; | ||
| 173 | FILE *fp; | ||
| 174 | char **x; | ||
| 175 | int (*cb)(); | ||
| 176 | { | ||
| 177 | BIO *b; | ||
| 178 | char *ret; | ||
| 179 | |||
| 180 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
| 181 | { | ||
| 182 | PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB); | ||
| 183 | return(0); | ||
| 184 | } | ||
| 185 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
| 186 | ret=PEM_ASN1_read_bio(d2i,name,b,x,cb); | ||
| 187 | BIO_free(b); | ||
| 188 | return(ret); | ||
| 189 | } | ||
| 190 | #endif | ||
| 191 | |||
| 192 | char *PEM_ASN1_read_bio(d2i,name,bp, x, cb) | ||
| 193 | char *(*d2i)(); | ||
| 194 | char *name; | ||
| 195 | BIO *bp; | ||
| 196 | char **x; | ||
| 197 | int (*cb)(); | ||
| 198 | { | ||
| 199 | EVP_CIPHER_INFO cipher; | ||
| 200 | char *nm=NULL,*header=NULL; | ||
| 201 | unsigned char *p=NULL,*data=NULL; | ||
| 202 | long len; | ||
| 203 | char *ret=NULL; | ||
| 204 | |||
| 205 | for (;;) | ||
| 206 | { | ||
| 207 | if (!PEM_read_bio(bp,&nm,&header,&data,&len)) return(NULL); | ||
| 208 | if ( (strcmp(nm,name) == 0) || | ||
| 209 | ((strcmp(nm,PEM_STRING_RSA) == 0) && | ||
| 210 | (strcmp(name,PEM_STRING_EVP_PKEY) == 0)) || | ||
| 211 | ((strcmp(nm,PEM_STRING_DSA) == 0) && | ||
| 212 | (strcmp(name,PEM_STRING_EVP_PKEY) == 0)) || | ||
| 213 | ((strcmp(nm,PEM_STRING_X509_OLD) == 0) && | ||
| 214 | (strcmp(name,PEM_STRING_X509) == 0)) || | ||
| 215 | ((strcmp(nm,PEM_STRING_X509_REQ_OLD) == 0) && | ||
| 216 | (strcmp(name,PEM_STRING_X509_REQ) == 0)) | ||
| 217 | ) | ||
| 218 | break; | ||
| 219 | Free(nm); | ||
| 220 | Free(header); | ||
| 221 | Free(data); | ||
| 222 | } | ||
| 223 | if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err; | ||
| 224 | if (!PEM_do_header(&cipher,data,&len,cb)) goto err; | ||
| 225 | p=data; | ||
| 226 | if (strcmp(name,PEM_STRING_EVP_PKEY) == 0) | ||
| 227 | { | ||
| 228 | if (strcmp(nm,PEM_STRING_RSA) == 0) | ||
| 229 | ret=d2i(EVP_PKEY_RSA,x,&p,len); | ||
| 230 | else if (strcmp(nm,PEM_STRING_DSA) == 0) | ||
| 231 | ret=d2i(EVP_PKEY_DSA,x,&p,len); | ||
| 232 | } | ||
| 233 | else | ||
| 234 | ret=d2i(x,&p,len); | ||
| 235 | if (ret == NULL) | ||
| 236 | PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB); | ||
| 237 | err: | ||
| 238 | Free(nm); | ||
| 239 | Free(header); | ||
| 240 | Free(data); | ||
| 241 | return(ret); | ||
| 242 | } | ||
| 243 | |||
| 244 | #ifndef NO_FP_API | ||
| 245 | int PEM_ASN1_write(i2d,name,fp, x, enc, kstr, klen, callback) | ||
| 246 | int (*i2d)(); | ||
| 247 | char *name; | ||
| 248 | FILE *fp; | ||
| 249 | char *x; | ||
| 250 | EVP_CIPHER *enc; | ||
| 251 | unsigned char *kstr; | ||
| 252 | int klen; | ||
| 253 | int (*callback)(); | ||
| 254 | { | ||
| 255 | BIO *b; | ||
| 256 | int ret; | ||
| 257 | |||
| 258 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
| 259 | { | ||
| 260 | PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB); | ||
| 261 | return(0); | ||
| 262 | } | ||
| 263 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
| 264 | ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback); | ||
| 265 | BIO_free(b); | ||
| 266 | return(ret); | ||
| 267 | } | ||
| 268 | #endif | ||
| 269 | |||
| 270 | int PEM_ASN1_write_bio(i2d,name,bp, x, enc, kstr, klen, callback) | ||
| 271 | int (*i2d)(); | ||
| 272 | char *name; | ||
| 273 | BIO *bp; | ||
| 274 | char *x; | ||
| 275 | EVP_CIPHER *enc; | ||
| 276 | unsigned char *kstr; | ||
| 277 | int klen; | ||
| 278 | int (*callback)(); | ||
| 279 | { | ||
| 280 | EVP_CIPHER_CTX ctx; | ||
| 281 | int dsize=0,i,j,ret=0; | ||
| 282 | unsigned char *p,*data=NULL; | ||
| 283 | char *objstr=NULL; | ||
| 284 | #define PEM_BUFSIZE 1024 | ||
| 285 | char buf[PEM_BUFSIZE]; | ||
| 286 | unsigned char key[EVP_MAX_KEY_LENGTH]; | ||
| 287 | unsigned char iv[EVP_MAX_IV_LENGTH]; | ||
| 288 | |||
| 289 | if (enc != NULL) | ||
| 290 | { | ||
| 291 | objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc)); | ||
| 292 | if (objstr == NULL) | ||
| 293 | { | ||
| 294 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER); | ||
| 295 | goto err; | ||
| 296 | } | ||
| 297 | } | ||
| 298 | |||
| 299 | if ((dsize=i2d(x,NULL)) < 0) | ||
| 300 | { | ||
| 301 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE); | ||
| 302 | dsize=0; | ||
| 303 | goto err; | ||
| 304 | } | ||
| 305 | /* dzise + 8 bytes are needed */ | ||
| 306 | data=(unsigned char *)Malloc((unsigned int)dsize+20); | ||
| 307 | if (data == NULL) | ||
| 308 | { | ||
| 309 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE); | ||
| 310 | goto err; | ||
| 311 | } | ||
| 312 | p=data; | ||
| 313 | i=i2d(x,&p); | ||
| 314 | |||
| 315 | if (enc != NULL) | ||
| 316 | { | ||
| 317 | if (kstr == NULL) | ||
| 318 | { | ||
| 319 | if (callback == NULL) | ||
| 320 | klen=def_callback(buf,PEM_BUFSIZE,1); | ||
| 321 | else | ||
| 322 | klen=(*callback)(buf,PEM_BUFSIZE,1); | ||
| 323 | if (klen <= 0) | ||
| 324 | { | ||
| 325 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY); | ||
| 326 | goto err; | ||
| 327 | } | ||
| 328 | kstr=(unsigned char *)buf; | ||
| 329 | } | ||
| 330 | RAND_seed(data,i);/* put in the RSA key. */ | ||
| 331 | RAND_bytes(iv,8); /* Generate a salt */ | ||
| 332 | /* The 'iv' is used as the iv and as a salt. It is | ||
| 333 | * NOT taken from the BytesToKey function */ | ||
| 334 | EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL); | ||
| 335 | |||
| 336 | if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE); | ||
| 337 | |||
| 338 | buf[0]='\0'; | ||
| 339 | PEM_proc_type(buf,PEM_TYPE_ENCRYPTED); | ||
| 340 | PEM_dek_info(buf,objstr,8,(char *)iv); | ||
| 341 | /* k=strlen(buf); */ | ||
| 342 | |||
| 343 | EVP_EncryptInit(&ctx,enc,key,iv); | ||
| 344 | EVP_EncryptUpdate(&ctx,data,&j,data,i); | ||
| 345 | EVP_EncryptFinal(&ctx,&(data[j]),&i); | ||
| 346 | i+=j; | ||
| 347 | ret=1; | ||
| 348 | } | ||
| 349 | else | ||
| 350 | { | ||
| 351 | ret=1; | ||
| 352 | buf[0]='\0'; | ||
| 353 | } | ||
| 354 | i=PEM_write_bio(bp,name,buf,data,i); | ||
| 355 | if (i <= 0) ret=0; | ||
| 356 | err: | ||
| 357 | memset(key,0,sizeof(key)); | ||
| 358 | memset(iv,0,sizeof(iv)); | ||
| 359 | memset((char *)&ctx,0,sizeof(ctx)); | ||
| 360 | memset(buf,0,PEM_BUFSIZE); | ||
| 361 | memset(data,0,(unsigned int)dsize); | ||
| 362 | Free(data); | ||
| 363 | return(ret); | ||
| 364 | } | ||
| 365 | |||
| 366 | int PEM_do_header(cipher, data, plen, callback) | ||
| 367 | EVP_CIPHER_INFO *cipher; | ||
| 368 | unsigned char *data; | ||
| 369 | long *plen; | ||
| 370 | int (*callback)(); | ||
| 371 | { | ||
| 372 | int i,j,o,klen; | ||
| 373 | long len; | ||
| 374 | EVP_CIPHER_CTX ctx; | ||
| 375 | unsigned char key[EVP_MAX_KEY_LENGTH]; | ||
| 376 | char buf[PEM_BUFSIZE]; | ||
| 377 | |||
| 378 | len= *plen; | ||
| 379 | |||
| 380 | if (cipher->cipher == NULL) return(1); | ||
| 381 | if (callback == NULL) | ||
| 382 | klen=def_callback(buf,PEM_BUFSIZE,0); | ||
| 383 | else | ||
| 384 | klen=callback(buf,PEM_BUFSIZE,0); | ||
| 385 | if (klen <= 0) | ||
| 386 | { | ||
| 387 | PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ); | ||
| 388 | return(0); | ||
| 389 | } | ||
| 390 | EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]), | ||
| 391 | (unsigned char *)buf,klen,1,key,NULL); | ||
| 392 | |||
| 393 | j=(int)len; | ||
| 394 | EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0])); | ||
| 395 | EVP_DecryptUpdate(&ctx,data,&i,data,j); | ||
| 396 | o=EVP_DecryptFinal(&ctx,&(data[i]),&j); | ||
| 397 | EVP_CIPHER_CTX_cleanup(&ctx); | ||
| 398 | memset((char *)buf,0,sizeof(buf)); | ||
| 399 | memset((char *)key,0,sizeof(key)); | ||
| 400 | j+=i; | ||
| 401 | if (!o) | ||
| 402 | { | ||
| 403 | PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT); | ||
| 404 | return(0); | ||
| 405 | } | ||
| 406 | *plen=j; | ||
| 407 | return(1); | ||
| 408 | } | ||
| 409 | |||
| 410 | int PEM_get_EVP_CIPHER_INFO(header,cipher) | ||
| 411 | char *header; | ||
| 412 | EVP_CIPHER_INFO *cipher; | ||
| 413 | { | ||
| 414 | int o; | ||
| 415 | EVP_CIPHER *enc=NULL; | ||
| 416 | char *p,c; | ||
| 417 | |||
| 418 | cipher->cipher=NULL; | ||
| 419 | if ((header == NULL) || (*header == '\0') || (*header == '\n')) | ||
| 420 | return(1); | ||
| 421 | if (strncmp(header,"Proc-Type: ",11) != 0) | ||
| 422 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); } | ||
| 423 | header+=11; | ||
| 424 | if (*header != '4') return(0); header++; | ||
| 425 | if (*header != ',') return(0); header++; | ||
| 426 | if (strncmp(header,"ENCRYPTED",9) != 0) | ||
| 427 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); } | ||
| 428 | for (; (*header != '\n') && (*header != '\0'); header++) | ||
| 429 | ; | ||
| 430 | if (*header == '\0') | ||
| 431 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); } | ||
| 432 | header++; | ||
| 433 | if (strncmp(header,"DEK-Info: ",10) != 0) | ||
| 434 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); } | ||
| 435 | header+=10; | ||
| 436 | |||
| 437 | p=header; | ||
| 438 | for (;;) | ||
| 439 | { | ||
| 440 | c= *header; | ||
| 441 | if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') || | ||
| 442 | ((c >= '0') && (c <= '9')))) | ||
| 443 | break; | ||
| 444 | header++; | ||
| 445 | } | ||
| 446 | *header='\0'; | ||
| 447 | o=OBJ_sn2nid(p); | ||
| 448 | cipher->cipher=enc=EVP_get_cipherbyname(p); | ||
| 449 | *header=c; | ||
| 450 | header++; | ||
| 451 | |||
| 452 | if (enc == NULL) | ||
| 453 | { | ||
| 454 | PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION); | ||
| 455 | return(0); | ||
| 456 | } | ||
| 457 | if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0); | ||
| 458 | |||
| 459 | return(1); | ||
| 460 | } | ||
| 461 | |||
| 462 | static int load_iv(fromp,to,num) | ||
| 463 | unsigned char **fromp,*to; | ||
| 464 | int num; | ||
| 465 | { | ||
| 466 | int v,i; | ||
| 467 | unsigned char *from; | ||
| 468 | |||
| 469 | from= *fromp; | ||
| 470 | for (i=0; i<num; i++) to[i]=0; | ||
| 471 | num*=2; | ||
| 472 | for (i=0; i<num; i++) | ||
| 473 | { | ||
| 474 | if ((*from >= '0') && (*from <= '9')) | ||
| 475 | v= *from-'0'; | ||
| 476 | else if ((*from >= 'A') && (*from <= 'F')) | ||
| 477 | v= *from-'A'+10; | ||
| 478 | else if ((*from >= 'a') && (*from <= 'f')) | ||
| 479 | v= *from-'a'+10; | ||
| 480 | else | ||
| 481 | { | ||
| 482 | PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS); | ||
| 483 | return(0); | ||
| 484 | } | ||
| 485 | from++; | ||
| 486 | to[i/2]|=v<<(long)((!(i&1))*4); | ||
| 487 | } | ||
| 488 | |||
| 489 | *fromp=from; | ||
| 490 | return(1); | ||
| 491 | } | ||
| 492 | |||
| 493 | #ifndef NO_FP_API | ||
| 494 | int PEM_write(fp, name, header, data,len) | ||
| 495 | FILE *fp; | ||
| 496 | char *name; | ||
| 497 | char *header; | ||
| 498 | unsigned char *data; | ||
| 499 | long len; | ||
| 500 | { | ||
| 501 | BIO *b; | ||
| 502 | int ret; | ||
| 503 | |||
| 504 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
| 505 | { | ||
| 506 | PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB); | ||
| 507 | return(0); | ||
| 508 | } | ||
| 509 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
| 510 | ret=PEM_write_bio(b, name, header, data,len); | ||
| 511 | BIO_free(b); | ||
| 512 | return(ret); | ||
| 513 | } | ||
| 514 | #endif | ||
| 515 | |||
| 516 | int PEM_write_bio(bp, name, header, data,len) | ||
| 517 | BIO *bp; | ||
| 518 | char *name; | ||
| 519 | char *header; | ||
| 520 | unsigned char *data; | ||
| 521 | long len; | ||
| 522 | { | ||
| 523 | int nlen,n,i,j,outl; | ||
| 524 | unsigned char *buf; | ||
| 525 | EVP_ENCODE_CTX ctx; | ||
| 526 | int reason=ERR_R_BUF_LIB; | ||
| 527 | |||
| 528 | EVP_EncodeInit(&ctx); | ||
| 529 | nlen=strlen(name); | ||
| 530 | |||
| 531 | if ( (BIO_write(bp,"-----BEGIN ",11) != 11) || | ||
| 532 | (BIO_write(bp,name,nlen) != nlen) || | ||
| 533 | (BIO_write(bp,"-----\n",6) != 6)) | ||
| 534 | goto err; | ||
| 535 | |||
| 536 | i=strlen(header); | ||
| 537 | if (i > 0) | ||
| 538 | { | ||
| 539 | if ( (BIO_write(bp,header,i) != i) || | ||
| 540 | (BIO_write(bp,"\n",1) != 1)) | ||
| 541 | goto err; | ||
| 542 | } | ||
| 543 | |||
| 544 | buf=(unsigned char *)Malloc(PEM_BUFSIZE*8); | ||
| 545 | if (buf == NULL) | ||
| 546 | { | ||
| 547 | reason=ERR_R_MALLOC_FAILURE; | ||
| 548 | goto err; | ||
| 549 | } | ||
| 550 | |||
| 551 | i=j=0; | ||
| 552 | while (len > 0) | ||
| 553 | { | ||
| 554 | n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len); | ||
| 555 | EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n); | ||
| 556 | if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl)) | ||
| 557 | goto err; | ||
| 558 | i+=outl; | ||
| 559 | len-=n; | ||
| 560 | j+=n; | ||
| 561 | } | ||
| 562 | EVP_EncodeFinal(&ctx,buf,&outl); | ||
| 563 | if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err; | ||
| 564 | Free(buf); | ||
| 565 | if ( (BIO_write(bp,"-----END ",9) != 9) || | ||
| 566 | (BIO_write(bp,name,nlen) != nlen) || | ||
| 567 | (BIO_write(bp,"-----\n",6) != 6)) | ||
| 568 | goto err; | ||
| 569 | return(i+outl); | ||
| 570 | err: | ||
| 571 | PEMerr(PEM_F_PEM_WRITE_BIO,reason); | ||
| 572 | return(0); | ||
| 573 | } | ||
| 574 | |||
| 575 | #ifndef NO_FP_API | ||
| 576 | int PEM_read(fp, name, header, data,len) | ||
| 577 | FILE *fp; | ||
| 578 | char **name; | ||
| 579 | char **header; | ||
| 580 | unsigned char **data; | ||
| 581 | long *len; | ||
| 582 | { | ||
| 583 | BIO *b; | ||
| 584 | int ret; | ||
| 585 | |||
| 586 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
| 587 | { | ||
| 588 | PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB); | ||
| 589 | return(0); | ||
| 590 | } | ||
| 591 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
| 592 | ret=PEM_read_bio(b, name, header, data,len); | ||
| 593 | BIO_free(b); | ||
| 594 | return(ret); | ||
| 595 | } | ||
| 596 | #endif | ||
| 597 | |||
| 598 | int PEM_read_bio(bp, name, header, data, len) | ||
| 599 | BIO *bp; | ||
| 600 | char **name; | ||
| 601 | char **header; | ||
| 602 | unsigned char **data; | ||
| 603 | long *len; | ||
| 604 | { | ||
| 605 | EVP_ENCODE_CTX ctx; | ||
| 606 | int end=0,i,k,bl=0,hl=0,nohead=0; | ||
| 607 | char buf[256]; | ||
| 608 | BUF_MEM *nameB; | ||
| 609 | BUF_MEM *headerB; | ||
| 610 | BUF_MEM *dataB,*tmpB; | ||
| 611 | |||
| 612 | nameB=BUF_MEM_new(); | ||
| 613 | headerB=BUF_MEM_new(); | ||
| 614 | dataB=BUF_MEM_new(); | ||
| 615 | if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL)) | ||
| 616 | { | ||
| 617 | PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
| 618 | return(0); | ||
| 619 | } | ||
| 620 | |||
| 621 | buf[254]='\0'; | ||
| 622 | for (;;) | ||
| 623 | { | ||
| 624 | i=BIO_gets(bp,buf,254); | ||
| 625 | |||
| 626 | if (i <= 0) | ||
| 627 | { | ||
| 628 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE); | ||
| 629 | goto err; | ||
| 630 | } | ||
| 631 | |||
| 632 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
| 633 | buf[++i]='\n'; buf[++i]='\0'; | ||
| 634 | |||
| 635 | if (strncmp(buf,"-----BEGIN ",11) == 0) | ||
| 636 | { | ||
| 637 | i=strlen(&(buf[11])); | ||
| 638 | |||
| 639 | if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0) | ||
| 640 | continue; | ||
| 641 | if (!BUF_MEM_grow(nameB,i+9)) | ||
| 642 | { | ||
| 643 | PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
| 644 | goto err; | ||
| 645 | } | ||
| 646 | strncpy(nameB->data,&(buf[11]),(unsigned int)i-6); | ||
| 647 | nameB->data[i-6]='\0'; | ||
| 648 | break; | ||
| 649 | } | ||
| 650 | } | ||
| 651 | hl=0; | ||
| 652 | if (!BUF_MEM_grow(headerB,256)) | ||
| 653 | { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } | ||
| 654 | headerB->data[0]='\0'; | ||
| 655 | for (;;) | ||
| 656 | { | ||
| 657 | i=BIO_gets(bp,buf,254); | ||
| 658 | if (i <= 0) break; | ||
| 659 | |||
| 660 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
| 661 | buf[++i]='\n'; buf[++i]='\0'; | ||
| 662 | |||
| 663 | if (buf[0] == '\n') break; | ||
| 664 | if (!BUF_MEM_grow(headerB,hl+i+9)) | ||
| 665 | { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } | ||
| 666 | if (strncmp(buf,"-----END ",9) == 0) | ||
| 667 | { | ||
| 668 | nohead=1; | ||
| 669 | break; | ||
| 670 | } | ||
| 671 | strncpy(&(headerB->data[hl]),buf,(unsigned int)i); | ||
| 672 | headerB->data[hl+i]='\0'; | ||
| 673 | hl+=i; | ||
| 674 | } | ||
| 675 | |||
| 676 | bl=0; | ||
| 677 | if (!BUF_MEM_grow(dataB,1024)) | ||
| 678 | { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } | ||
| 679 | dataB->data[0]='\0'; | ||
| 680 | if (!nohead) | ||
| 681 | { | ||
| 682 | for (;;) | ||
| 683 | { | ||
| 684 | i=BIO_gets(bp,buf,254); | ||
| 685 | if (i <= 0) break; | ||
| 686 | |||
| 687 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
| 688 | buf[++i]='\n'; buf[++i]='\0'; | ||
| 689 | |||
| 690 | if (i != 65) end=1; | ||
| 691 | if (strncmp(buf,"-----END ",9) == 0) | ||
| 692 | break; | ||
| 693 | if (i > 65) break; | ||
| 694 | if (!BUF_MEM_grow(dataB,i+bl+9)) | ||
| 695 | { | ||
| 696 | PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
| 697 | goto err; | ||
| 698 | } | ||
| 699 | strncpy(&(dataB->data[bl]),buf,(unsigned int)i); | ||
| 700 | dataB->data[bl+i]='\0'; | ||
| 701 | bl+=i; | ||
| 702 | if (end) | ||
| 703 | { | ||
| 704 | buf[0]='\0'; | ||
| 705 | i=BIO_gets(bp,buf,254); | ||
| 706 | if (i <= 0) break; | ||
| 707 | |||
| 708 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
| 709 | buf[++i]='\n'; buf[++i]='\0'; | ||
| 710 | |||
| 711 | break; | ||
| 712 | } | ||
| 713 | } | ||
| 714 | } | ||
| 715 | else | ||
| 716 | { | ||
| 717 | tmpB=headerB; | ||
| 718 | headerB=dataB; | ||
| 719 | dataB=tmpB; | ||
| 720 | bl=hl; | ||
| 721 | } | ||
| 722 | i=strlen(nameB->data); | ||
| 723 | if ( (strncmp(buf,"-----END ",9) != 0) || | ||
| 724 | (strncmp(nameB->data,&(buf[9]),(unsigned int)i) != 0) || | ||
| 725 | (strncmp(&(buf[9+i]),"-----\n",6) != 0)) | ||
| 726 | { | ||
| 727 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE); | ||
| 728 | goto err; | ||
| 729 | } | ||
| 730 | |||
| 731 | EVP_DecodeInit(&ctx); | ||
| 732 | i=EVP_DecodeUpdate(&ctx, | ||
| 733 | (unsigned char *)dataB->data,&bl, | ||
| 734 | (unsigned char *)dataB->data,bl); | ||
| 735 | if (i < 0) | ||
| 736 | { | ||
| 737 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE); | ||
| 738 | goto err; | ||
| 739 | } | ||
| 740 | i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k); | ||
| 741 | if (i < 0) | ||
| 742 | { | ||
| 743 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE); | ||
| 744 | goto err; | ||
| 745 | } | ||
| 746 | bl+=k; | ||
| 747 | |||
| 748 | if (bl == 0) goto err; | ||
| 749 | *name=nameB->data; | ||
| 750 | *header=headerB->data; | ||
| 751 | *data=(unsigned char *)dataB->data; | ||
| 752 | *len=bl; | ||
| 753 | Free(nameB); | ||
| 754 | Free(headerB); | ||
| 755 | Free(dataB); | ||
| 756 | return(1); | ||
| 757 | err: | ||
| 758 | BUF_MEM_free(nameB); | ||
| 759 | BUF_MEM_free(headerB); | ||
| 760 | BUF_MEM_free(dataB); | ||
| 761 | return(0); | ||
| 762 | } | ||
