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| author | cvs2svn <admin@example.com> | 2015-03-08 16:48:48 +0000 |
|---|---|---|
| committer | cvs2svn <admin@example.com> | 2015-03-08 16:48:48 +0000 |
| commit | da1a9ad3a4a867ba6569c05e6fca66d7f296c553 (patch) | |
| tree | 44872802e872bdfd60730fa9cf01d9d5751251c1 /src/lib/libcrypto/dsa/dsa_asn1.c | |
| parent | 973703db67a8e73d70e63afa8f2cde19da09144d (diff) | |
| download | openbsd-OPENBSD_5_7_BASE.tar.gz openbsd-OPENBSD_5_7_BASE.tar.bz2 openbsd-OPENBSD_5_7_BASE.zip | |
This commit was manufactured by cvs2git to create tag 'OPENBSD_5_7_BASE'.OPENBSD_5_7_BASE
Diffstat (limited to 'src/lib/libcrypto/dsa/dsa_asn1.c')
| -rw-r--r-- | src/lib/libcrypto/dsa/dsa_asn1.c | 439 |
1 files changed, 0 insertions, 439 deletions
diff --git a/src/lib/libcrypto/dsa/dsa_asn1.c b/src/lib/libcrypto/dsa/dsa_asn1.c deleted file mode 100644 index 8c5d93105c..0000000000 --- a/src/lib/libcrypto/dsa/dsa_asn1.c +++ /dev/null | |||
| @@ -1,439 +0,0 @@ | |||
| 1 | /* $OpenBSD: dsa_asn1.c,v 1.16 2015/02/14 15:06:55 jsing Exp $ */ | ||
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | ||
| 3 | * project 2000. | ||
| 4 | */ | ||
| 5 | /* ==================================================================== | ||
| 6 | * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. | ||
| 7 | * | ||
| 8 | * Redistribution and use in source and binary forms, with or without | ||
| 9 | * modification, are permitted provided that the following conditions | ||
| 10 | * are met: | ||
| 11 | * | ||
| 12 | * 1. Redistributions of source code must retain the above copyright | ||
| 13 | * notice, this list of conditions and the following disclaimer. | ||
| 14 | * | ||
| 15 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 16 | * notice, this list of conditions and the following disclaimer in | ||
| 17 | * the documentation and/or other materials provided with the | ||
| 18 | * distribution. | ||
| 19 | * | ||
| 20 | * 3. All advertising materials mentioning features or use of this | ||
| 21 | * software must display the following acknowledgment: | ||
| 22 | * "This product includes software developed by the OpenSSL Project | ||
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | ||
| 24 | * | ||
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 26 | * endorse or promote products derived from this software without | ||
| 27 | * prior written permission. For written permission, please contact | ||
| 28 | * licensing@OpenSSL.org. | ||
| 29 | * | ||
| 30 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 31 | * nor may "OpenSSL" appear in their names without prior written | ||
| 32 | * permission of the OpenSSL Project. | ||
| 33 | * | ||
| 34 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 35 | * acknowledgment: | ||
| 36 | * "This product includes software developed by the OpenSSL Project | ||
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | ||
| 38 | * | ||
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 51 | * ==================================================================== | ||
| 52 | * | ||
| 53 | * This product includes cryptographic software written by Eric Young | ||
| 54 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 55 | * Hudson (tjh@cryptsoft.com). | ||
| 56 | * | ||
| 57 | */ | ||
| 58 | |||
| 59 | #include <stdio.h> | ||
| 60 | #include <string.h> | ||
| 61 | |||
| 62 | #include <openssl/asn1.h> | ||
| 63 | #include <openssl/asn1t.h> | ||
| 64 | #include <openssl/dsa.h> | ||
| 65 | #include <openssl/err.h> | ||
| 66 | |||
| 67 | /* Override the default new methods */ | ||
| 68 | static int | ||
| 69 | sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg) | ||
| 70 | { | ||
| 71 | if (operation == ASN1_OP_NEW_PRE) { | ||
| 72 | DSA_SIG *sig; | ||
| 73 | |||
| 74 | sig = malloc(sizeof(DSA_SIG)); | ||
| 75 | if (!sig) { | ||
| 76 | DSAerr(DSA_F_SIG_CB, ERR_R_MALLOC_FAILURE); | ||
| 77 | return 0; | ||
| 78 | } | ||
| 79 | sig->r = NULL; | ||
| 80 | sig->s = NULL; | ||
| 81 | *pval = (ASN1_VALUE *)sig; | ||
| 82 | return 2; | ||
| 83 | } | ||
| 84 | return 1; | ||
| 85 | } | ||
| 86 | |||
| 87 | static const ASN1_AUX DSA_SIG_aux = { | ||
| 88 | .app_data = NULL, | ||
| 89 | .flags = 0, | ||
| 90 | .ref_offset = 0, | ||
| 91 | .ref_lock = 0, | ||
| 92 | .asn1_cb = sig_cb, | ||
| 93 | .enc_offset = 0, | ||
| 94 | }; | ||
| 95 | static const ASN1_TEMPLATE DSA_SIG_seq_tt[] = { | ||
| 96 | { | ||
| 97 | .flags = 0, | ||
| 98 | .tag = 0, | ||
| 99 | .offset = offsetof(DSA_SIG, r), | ||
| 100 | .field_name = "r", | ||
| 101 | .item = &CBIGNUM_it, | ||
| 102 | }, | ||
| 103 | { | ||
| 104 | .flags = 0, | ||
| 105 | .tag = 0, | ||
| 106 | .offset = offsetof(DSA_SIG, s), | ||
| 107 | .field_name = "s", | ||
| 108 | .item = &CBIGNUM_it, | ||
| 109 | }, | ||
| 110 | }; | ||
| 111 | |||
| 112 | const ASN1_ITEM DSA_SIG_it = { | ||
| 113 | .itype = ASN1_ITYPE_SEQUENCE, | ||
| 114 | .utype = V_ASN1_SEQUENCE, | ||
| 115 | .templates = DSA_SIG_seq_tt, | ||
| 116 | .tcount = sizeof(DSA_SIG_seq_tt) / sizeof(ASN1_TEMPLATE), | ||
| 117 | .funcs = &DSA_SIG_aux, | ||
| 118 | .size = sizeof(DSA_SIG), | ||
| 119 | .sname = "DSA_SIG", | ||
| 120 | }; | ||
| 121 | |||
| 122 | |||
| 123 | DSA_SIG * | ||
| 124 | d2i_DSA_SIG(DSA_SIG **a, const unsigned char **in, long len) | ||
| 125 | { | ||
| 126 | return (DSA_SIG *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, | ||
| 127 | &DSA_SIG_it); | ||
| 128 | } | ||
| 129 | |||
| 130 | int | ||
| 131 | i2d_DSA_SIG(const DSA_SIG *a, unsigned char **out) | ||
| 132 | { | ||
| 133 | return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSA_SIG_it); | ||
| 134 | } | ||
| 135 | |||
| 136 | /* Override the default free and new methods */ | ||
| 137 | static int | ||
| 138 | dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg) | ||
| 139 | { | ||
| 140 | if (operation == ASN1_OP_NEW_PRE) { | ||
| 141 | *pval = (ASN1_VALUE *)DSA_new(); | ||
| 142 | if (*pval) | ||
| 143 | return 2; | ||
| 144 | return 0; | ||
| 145 | } else if (operation == ASN1_OP_FREE_PRE) { | ||
| 146 | DSA_free((DSA *)*pval); | ||
| 147 | *pval = NULL; | ||
| 148 | return 2; | ||
| 149 | } | ||
| 150 | return 1; | ||
| 151 | } | ||
| 152 | |||
| 153 | static const ASN1_AUX DSAPrivateKey_aux = { | ||
| 154 | .app_data = NULL, | ||
| 155 | .flags = 0, | ||
| 156 | .ref_offset = 0, | ||
| 157 | .ref_lock = 0, | ||
| 158 | .asn1_cb = dsa_cb, | ||
| 159 | .enc_offset = 0, | ||
| 160 | }; | ||
| 161 | static const ASN1_TEMPLATE DSAPrivateKey_seq_tt[] = { | ||
| 162 | { | ||
| 163 | .flags = 0, | ||
| 164 | .tag = 0, | ||
| 165 | .offset = offsetof(DSA, version), | ||
| 166 | .field_name = "version", | ||
| 167 | .item = &LONG_it, | ||
| 168 | }, | ||
| 169 | { | ||
| 170 | .flags = 0, | ||
| 171 | .tag = 0, | ||
| 172 | .offset = offsetof(DSA, p), | ||
| 173 | .field_name = "p", | ||
| 174 | .item = &BIGNUM_it, | ||
| 175 | }, | ||
| 176 | { | ||
| 177 | .flags = 0, | ||
| 178 | .tag = 0, | ||
| 179 | .offset = offsetof(DSA, q), | ||
| 180 | .field_name = "q", | ||
| 181 | .item = &BIGNUM_it, | ||
| 182 | }, | ||
| 183 | { | ||
| 184 | .flags = 0, | ||
| 185 | .tag = 0, | ||
| 186 | .offset = offsetof(DSA, g), | ||
| 187 | .field_name = "g", | ||
| 188 | .item = &BIGNUM_it, | ||
| 189 | }, | ||
| 190 | { | ||
| 191 | .flags = 0, | ||
| 192 | .tag = 0, | ||
| 193 | .offset = offsetof(DSA, pub_key), | ||
| 194 | .field_name = "pub_key", | ||
| 195 | .item = &BIGNUM_it, | ||
| 196 | }, | ||
| 197 | { | ||
| 198 | .flags = 0, | ||
| 199 | .tag = 0, | ||
| 200 | .offset = offsetof(DSA, priv_key), | ||
| 201 | .field_name = "priv_key", | ||
| 202 | .item = &BIGNUM_it, | ||
| 203 | }, | ||
| 204 | }; | ||
| 205 | |||
| 206 | const ASN1_ITEM DSAPrivateKey_it = { | ||
| 207 | .itype = ASN1_ITYPE_SEQUENCE, | ||
| 208 | .utype = V_ASN1_SEQUENCE, | ||
| 209 | .templates = DSAPrivateKey_seq_tt, | ||
| 210 | .tcount = sizeof(DSAPrivateKey_seq_tt) / sizeof(ASN1_TEMPLATE), | ||
| 211 | .funcs = &DSAPrivateKey_aux, | ||
| 212 | .size = sizeof(DSA), | ||
| 213 | .sname = "DSA", | ||
| 214 | }; | ||
| 215 | |||
| 216 | |||
| 217 | DSA * | ||
| 218 | d2i_DSAPrivateKey(DSA **a, const unsigned char **in, long len) | ||
| 219 | { | ||
| 220 | return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, | ||
| 221 | &DSAPrivateKey_it); | ||
| 222 | } | ||
| 223 | |||
| 224 | int | ||
| 225 | i2d_DSAPrivateKey(const DSA *a, unsigned char **out) | ||
| 226 | { | ||
| 227 | return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSAPrivateKey_it); | ||
| 228 | } | ||
| 229 | |||
| 230 | static const ASN1_AUX DSAparams_aux = { | ||
| 231 | .app_data = NULL, | ||
| 232 | .flags = 0, | ||
| 233 | .ref_offset = 0, | ||
| 234 | .ref_lock = 0, | ||
| 235 | .asn1_cb = dsa_cb, | ||
| 236 | .enc_offset = 0, | ||
| 237 | }; | ||
| 238 | static const ASN1_TEMPLATE DSAparams_seq_tt[] = { | ||
| 239 | { | ||
| 240 | .flags = 0, | ||
| 241 | .tag = 0, | ||
| 242 | .offset = offsetof(DSA, p), | ||
| 243 | .field_name = "p", | ||
| 244 | .item = &BIGNUM_it, | ||
| 245 | }, | ||
| 246 | { | ||
| 247 | .flags = 0, | ||
| 248 | .tag = 0, | ||
| 249 | .offset = offsetof(DSA, q), | ||
| 250 | .field_name = "q", | ||
| 251 | .item = &BIGNUM_it, | ||
| 252 | }, | ||
| 253 | { | ||
| 254 | .flags = 0, | ||
| 255 | .tag = 0, | ||
| 256 | .offset = offsetof(DSA, g), | ||
| 257 | .field_name = "g", | ||
| 258 | .item = &BIGNUM_it, | ||
| 259 | }, | ||
| 260 | }; | ||
| 261 | |||
| 262 | const ASN1_ITEM DSAparams_it = { | ||
| 263 | .itype = ASN1_ITYPE_SEQUENCE, | ||
| 264 | .utype = V_ASN1_SEQUENCE, | ||
| 265 | .templates = DSAparams_seq_tt, | ||
| 266 | .tcount = sizeof(DSAparams_seq_tt) / sizeof(ASN1_TEMPLATE), | ||
| 267 | .funcs = &DSAparams_aux, | ||
| 268 | .size = sizeof(DSA), | ||
| 269 | .sname = "DSA", | ||
| 270 | }; | ||
| 271 | |||
| 272 | |||
| 273 | DSA * | ||
| 274 | d2i_DSAparams(DSA **a, const unsigned char **in, long len) | ||
| 275 | { | ||
| 276 | return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, | ||
| 277 | &DSAparams_it); | ||
| 278 | } | ||
| 279 | |||
| 280 | int | ||
| 281 | i2d_DSAparams(const DSA *a, unsigned char **out) | ||
| 282 | { | ||
| 283 | return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSAparams_it); | ||
| 284 | } | ||
| 285 | |||
| 286 | /* | ||
| 287 | * DSA public key is a bit trickier... its effectively a CHOICE type | ||
| 288 | * decided by a field called write_params which can either write out | ||
| 289 | * just the public key as an INTEGER or the parameters and public key | ||
| 290 | * in a SEQUENCE | ||
| 291 | */ | ||
| 292 | |||
| 293 | static const ASN1_TEMPLATE dsa_pub_internal_seq_tt[] = { | ||
| 294 | { | ||
| 295 | .flags = 0, | ||
| 296 | .tag = 0, | ||
| 297 | .offset = offsetof(DSA, pub_key), | ||
| 298 | .field_name = "pub_key", | ||
| 299 | .item = &BIGNUM_it, | ||
| 300 | }, | ||
| 301 | { | ||
| 302 | .flags = 0, | ||
| 303 | .tag = 0, | ||
| 304 | .offset = offsetof(DSA, p), | ||
| 305 | .field_name = "p", | ||
| 306 | .item = &BIGNUM_it, | ||
| 307 | }, | ||
| 308 | { | ||
| 309 | .flags = 0, | ||
| 310 | .tag = 0, | ||
| 311 | .offset = offsetof(DSA, q), | ||
| 312 | .field_name = "q", | ||
| 313 | .item = &BIGNUM_it, | ||
| 314 | }, | ||
| 315 | { | ||
| 316 | .flags = 0, | ||
| 317 | .tag = 0, | ||
| 318 | .offset = offsetof(DSA, g), | ||
| 319 | .field_name = "g", | ||
| 320 | .item = &BIGNUM_it, | ||
| 321 | }, | ||
| 322 | }; | ||
| 323 | |||
| 324 | const ASN1_ITEM dsa_pub_internal_it = { | ||
| 325 | .itype = ASN1_ITYPE_SEQUENCE, | ||
| 326 | .utype = V_ASN1_SEQUENCE, | ||
| 327 | .templates = dsa_pub_internal_seq_tt, | ||
| 328 | .tcount = sizeof(dsa_pub_internal_seq_tt) / sizeof(ASN1_TEMPLATE), | ||
| 329 | .funcs = NULL, | ||
| 330 | .size = sizeof(DSA), | ||
| 331 | .sname = "DSA", | ||
| 332 | }; | ||
| 333 | |||
| 334 | static const ASN1_AUX DSAPublicKey_aux = { | ||
| 335 | .app_data = NULL, | ||
| 336 | .flags = 0, | ||
| 337 | .ref_offset = 0, | ||
| 338 | .ref_lock = 0, | ||
| 339 | .asn1_cb = dsa_cb, | ||
| 340 | .enc_offset = 0, | ||
| 341 | }; | ||
| 342 | static const ASN1_TEMPLATE DSAPublicKey_ch_tt[] = { | ||
| 343 | { | ||
| 344 | .flags = 0, | ||
| 345 | .tag = 0, | ||
| 346 | .offset = offsetof(DSA, pub_key), | ||
| 347 | .field_name = "pub_key", | ||
| 348 | .item = &BIGNUM_it, | ||
| 349 | }, | ||
| 350 | { | ||
| 351 | .flags = 0 | ASN1_TFLG_COMBINE, | ||
| 352 | .tag = 0, | ||
| 353 | .offset = 0, | ||
| 354 | .field_name = NULL, | ||
| 355 | .item = &dsa_pub_internal_it, | ||
| 356 | }, | ||
| 357 | }; | ||
| 358 | |||
| 359 | const ASN1_ITEM DSAPublicKey_it = { | ||
| 360 | .itype = ASN1_ITYPE_CHOICE, | ||
| 361 | .utype = offsetof(DSA, write_params), | ||
| 362 | .templates = DSAPublicKey_ch_tt, | ||
| 363 | .tcount = sizeof(DSAPublicKey_ch_tt) / sizeof(ASN1_TEMPLATE), | ||
| 364 | .funcs = &DSAPublicKey_aux, | ||
| 365 | .size = sizeof(DSA), | ||
| 366 | .sname = "DSA", | ||
| 367 | }; | ||
| 368 | |||
| 369 | |||
| 370 | DSA * | ||
| 371 | d2i_DSAPublicKey(DSA **a, const unsigned char **in, long len) | ||
| 372 | { | ||
| 373 | return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, | ||
| 374 | &DSAPublicKey_it); | ||
| 375 | } | ||
| 376 | |||
| 377 | int | ||
| 378 | i2d_DSAPublicKey(const DSA *a, unsigned char **out) | ||
| 379 | { | ||
| 380 | return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSAPublicKey_it); | ||
| 381 | } | ||
| 382 | |||
| 383 | DSA * | ||
| 384 | DSAparams_dup(DSA *dsa) | ||
| 385 | { | ||
| 386 | return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), dsa); | ||
| 387 | } | ||
| 388 | |||
| 389 | int | ||
| 390 | DSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char *sig, | ||
| 391 | unsigned int *siglen, DSA *dsa) | ||
| 392 | { | ||
| 393 | DSA_SIG *s; | ||
| 394 | |||
| 395 | s = DSA_do_sign(dgst, dlen, dsa); | ||
| 396 | if (s == NULL) { | ||
| 397 | *siglen = 0; | ||
| 398 | return 0; | ||
| 399 | } | ||
| 400 | *siglen = i2d_DSA_SIG(s,&sig); | ||
| 401 | DSA_SIG_free(s); | ||
| 402 | return 1; | ||
| 403 | } | ||
| 404 | |||
| 405 | /* | ||
| 406 | * data has already been hashed (probably with SHA or SHA-1). | ||
| 407 | * returns | ||
| 408 | * 1: correct signature | ||
| 409 | * 0: incorrect signature | ||
| 410 | * -1: error | ||
| 411 | */ | ||
| 412 | int | ||
| 413 | DSA_verify(int type, const unsigned char *dgst, int dgst_len, | ||
| 414 | const unsigned char *sigbuf, int siglen, DSA *dsa) | ||
| 415 | { | ||
| 416 | DSA_SIG *s; | ||
| 417 | unsigned char *der = NULL; | ||
| 418 | const unsigned char *p = sigbuf; | ||
| 419 | int derlen = -1; | ||
| 420 | int ret = -1; | ||
| 421 | |||
| 422 | s = DSA_SIG_new(); | ||
| 423 | if (s == NULL) | ||
| 424 | return ret; | ||
| 425 | if (d2i_DSA_SIG(&s, &p, siglen) == NULL) | ||
| 426 | goto err; | ||
| 427 | /* Ensure signature uses DER and doesn't have trailing garbage */ | ||
| 428 | derlen = i2d_DSA_SIG(s, &der); | ||
| 429 | if (derlen != siglen || memcmp(sigbuf, der, derlen)) | ||
| 430 | goto err; | ||
| 431 | ret = DSA_do_verify(dgst, dgst_len, s, dsa); | ||
| 432 | err: | ||
| 433 | if (derlen > 0) { | ||
| 434 | explicit_bzero(der, derlen); | ||
| 435 | free(der); | ||
| 436 | } | ||
| 437 | DSA_SIG_free(s); | ||
| 438 | return ret; | ||
| 439 | } | ||
