diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/x_pubkey.c')
| -rw-r--r-- | src/lib/libcrypto/asn1/x_pubkey.c | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/x_pubkey.c b/src/lib/libcrypto/asn1/x_pubkey.c new file mode 100644 index 0000000000..d958540120 --- /dev/null +++ b/src/lib/libcrypto/asn1/x_pubkey.c | |||
| @@ -0,0 +1,334 @@ | |||
| 1 | /* crypto/asn1/x_pubkey.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 <openssl/asn1t.h> | ||
| 62 | #include <openssl/x509.h> | ||
| 63 | |||
| 64 | /* Minor tweak to operation: free up EVP_PKEY */ | ||
| 65 | static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) | ||
| 66 | { | ||
| 67 | if(operation == ASN1_OP_FREE_POST) { | ||
| 68 | X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; | ||
| 69 | EVP_PKEY_free(pubkey->pkey); | ||
| 70 | } | ||
| 71 | return 1; | ||
| 72 | } | ||
| 73 | |||
| 74 | ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = { | ||
| 75 | ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR), | ||
| 76 | ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING) | ||
| 77 | } ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY) | ||
| 78 | |||
| 79 | IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY) | ||
| 80 | |||
| 81 | int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) | ||
| 82 | { | ||
| 83 | int ok=0; | ||
| 84 | X509_PUBKEY *pk; | ||
| 85 | X509_ALGOR *a; | ||
| 86 | ASN1_OBJECT *o; | ||
| 87 | unsigned char *s,*p = NULL; | ||
| 88 | int i; | ||
| 89 | |||
| 90 | if (x == NULL) return(0); | ||
| 91 | |||
| 92 | if ((pk=X509_PUBKEY_new()) == NULL) goto err; | ||
| 93 | a=pk->algor; | ||
| 94 | |||
| 95 | /* set the algorithm id */ | ||
| 96 | if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err; | ||
| 97 | ASN1_OBJECT_free(a->algorithm); | ||
| 98 | a->algorithm=o; | ||
| 99 | |||
| 100 | /* Set the parameter list */ | ||
| 101 | if (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA)) | ||
| 102 | { | ||
| 103 | if ((a->parameter == NULL) || | ||
| 104 | (a->parameter->type != V_ASN1_NULL)) | ||
| 105 | { | ||
| 106 | ASN1_TYPE_free(a->parameter); | ||
| 107 | a->parameter=ASN1_TYPE_new(); | ||
| 108 | a->parameter->type=V_ASN1_NULL; | ||
| 109 | } | ||
| 110 | } | ||
| 111 | else | ||
| 112 | #ifndef OPENSSL_NO_DSA | ||
| 113 | if (pkey->type == EVP_PKEY_DSA) | ||
| 114 | { | ||
| 115 | unsigned char *pp; | ||
| 116 | DSA *dsa; | ||
| 117 | |||
| 118 | dsa=pkey->pkey.dsa; | ||
| 119 | dsa->write_params=0; | ||
| 120 | ASN1_TYPE_free(a->parameter); | ||
| 121 | i=i2d_DSAparams(dsa,NULL); | ||
| 122 | if ((p=(unsigned char *)OPENSSL_malloc(i)) == NULL) goto err; | ||
| 123 | pp=p; | ||
| 124 | i2d_DSAparams(dsa,&pp); | ||
| 125 | a->parameter=ASN1_TYPE_new(); | ||
| 126 | a->parameter->type=V_ASN1_SEQUENCE; | ||
| 127 | a->parameter->value.sequence=ASN1_STRING_new(); | ||
| 128 | ASN1_STRING_set(a->parameter->value.sequence,p,i); | ||
| 129 | OPENSSL_free(p); | ||
| 130 | } | ||
| 131 | else | ||
| 132 | #endif | ||
| 133 | { | ||
| 134 | X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM); | ||
| 135 | goto err; | ||
| 136 | } | ||
| 137 | |||
| 138 | if ((i=i2d_PublicKey(pkey,NULL)) <= 0) goto err; | ||
| 139 | if ((s=(unsigned char *)OPENSSL_malloc(i+1)) == NULL) | ||
| 140 | { | ||
| 141 | X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); | ||
| 142 | goto err; | ||
| 143 | } | ||
| 144 | p=s; | ||
| 145 | i2d_PublicKey(pkey,&p); | ||
| 146 | if (!M_ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err; | ||
| 147 | /* Set number of unused bits to zero */ | ||
| 148 | pk->public_key->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); | ||
| 149 | pk->public_key->flags|=ASN1_STRING_FLAG_BITS_LEFT; | ||
| 150 | |||
| 151 | OPENSSL_free(s); | ||
| 152 | |||
| 153 | #if 0 | ||
| 154 | CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); | ||
| 155 | pk->pkey=pkey; | ||
| 156 | #endif | ||
| 157 | |||
| 158 | if (*x != NULL) | ||
| 159 | X509_PUBKEY_free(*x); | ||
| 160 | |||
| 161 | *x=pk; | ||
| 162 | pk=NULL; | ||
| 163 | |||
| 164 | ok=1; | ||
| 165 | err: | ||
| 166 | if (pk != NULL) X509_PUBKEY_free(pk); | ||
| 167 | return(ok); | ||
| 168 | } | ||
| 169 | |||
| 170 | EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key) | ||
| 171 | { | ||
| 172 | EVP_PKEY *ret=NULL; | ||
| 173 | long j; | ||
| 174 | int type; | ||
| 175 | unsigned char *p; | ||
| 176 | #ifndef OPENSSL_NO_DSA | ||
| 177 | const unsigned char *cp; | ||
| 178 | X509_ALGOR *a; | ||
| 179 | #endif | ||
| 180 | |||
| 181 | if (key == NULL) goto err; | ||
| 182 | |||
| 183 | if (key->pkey != NULL) | ||
| 184 | { | ||
| 185 | CRYPTO_add(&key->pkey->references,1,CRYPTO_LOCK_EVP_PKEY); | ||
| 186 | return(key->pkey); | ||
| 187 | } | ||
| 188 | |||
| 189 | if (key->public_key == NULL) goto err; | ||
| 190 | |||
| 191 | type=OBJ_obj2nid(key->algor->algorithm); | ||
| 192 | p=key->public_key->data; | ||
| 193 | j=key->public_key->length; | ||
| 194 | if ((ret=d2i_PublicKey(type,NULL,&p,(long)j)) == NULL) | ||
| 195 | { | ||
| 196 | X509err(X509_F_X509_PUBKEY_GET,X509_R_ERR_ASN1_LIB); | ||
| 197 | goto err; | ||
| 198 | } | ||
| 199 | ret->save_parameters=0; | ||
| 200 | |||
| 201 | #ifndef OPENSSL_NO_DSA | ||
| 202 | a=key->algor; | ||
| 203 | if (ret->type == EVP_PKEY_DSA) | ||
| 204 | { | ||
| 205 | if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE)) | ||
| 206 | { | ||
| 207 | ret->pkey.dsa->write_params=0; | ||
| 208 | cp=p=a->parameter->value.sequence->data; | ||
| 209 | j=a->parameter->value.sequence->length; | ||
| 210 | if (!d2i_DSAparams(&ret->pkey.dsa,&cp,(long)j)) | ||
| 211 | goto err; | ||
| 212 | } | ||
| 213 | ret->save_parameters=1; | ||
| 214 | } | ||
| 215 | #endif | ||
| 216 | key->pkey=ret; | ||
| 217 | CRYPTO_add(&ret->references,1,CRYPTO_LOCK_EVP_PKEY); | ||
| 218 | return(ret); | ||
| 219 | err: | ||
| 220 | if (ret != NULL) | ||
| 221 | EVP_PKEY_free(ret); | ||
| 222 | return(NULL); | ||
| 223 | } | ||
| 224 | |||
| 225 | /* Now two pseudo ASN1 routines that take an EVP_PKEY structure | ||
| 226 | * and encode or decode as X509_PUBKEY | ||
| 227 | */ | ||
| 228 | |||
| 229 | EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, unsigned char **pp, | ||
| 230 | long length) | ||
| 231 | { | ||
| 232 | X509_PUBKEY *xpk; | ||
| 233 | EVP_PKEY *pktmp; | ||
| 234 | xpk = d2i_X509_PUBKEY(NULL, pp, length); | ||
| 235 | if(!xpk) return NULL; | ||
| 236 | pktmp = X509_PUBKEY_get(xpk); | ||
| 237 | X509_PUBKEY_free(xpk); | ||
| 238 | if(!pktmp) return NULL; | ||
| 239 | if(a) { | ||
| 240 | EVP_PKEY_free(*a); | ||
| 241 | *a = pktmp; | ||
| 242 | } | ||
| 243 | return pktmp; | ||
| 244 | } | ||
| 245 | |||
| 246 | int i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp) | ||
| 247 | { | ||
| 248 | X509_PUBKEY *xpk=NULL; | ||
| 249 | int ret; | ||
| 250 | if(!a) return 0; | ||
| 251 | if(!X509_PUBKEY_set(&xpk, a)) return 0; | ||
| 252 | ret = i2d_X509_PUBKEY(xpk, pp); | ||
| 253 | X509_PUBKEY_free(xpk); | ||
| 254 | return ret; | ||
| 255 | } | ||
| 256 | |||
| 257 | /* The following are equivalents but which return RSA and DSA | ||
| 258 | * keys | ||
| 259 | */ | ||
| 260 | #ifndef OPENSSL_NO_RSA | ||
| 261 | RSA *d2i_RSA_PUBKEY(RSA **a, unsigned char **pp, | ||
| 262 | long length) | ||
| 263 | { | ||
| 264 | EVP_PKEY *pkey; | ||
| 265 | RSA *key; | ||
| 266 | unsigned char *q; | ||
| 267 | q = *pp; | ||
| 268 | pkey = d2i_PUBKEY(NULL, &q, length); | ||
| 269 | if(!pkey) return NULL; | ||
| 270 | key = EVP_PKEY_get1_RSA(pkey); | ||
| 271 | EVP_PKEY_free(pkey); | ||
| 272 | if(!key) return NULL; | ||
| 273 | *pp = q; | ||
| 274 | if(a) { | ||
| 275 | RSA_free(*a); | ||
| 276 | *a = key; | ||
| 277 | } | ||
| 278 | return key; | ||
| 279 | } | ||
| 280 | |||
| 281 | int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp) | ||
| 282 | { | ||
| 283 | EVP_PKEY *pktmp; | ||
| 284 | int ret; | ||
| 285 | if(!a) return 0; | ||
| 286 | pktmp = EVP_PKEY_new(); | ||
| 287 | if(!pktmp) { | ||
| 288 | ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE); | ||
| 289 | return 0; | ||
| 290 | } | ||
| 291 | EVP_PKEY_set1_RSA(pktmp, a); | ||
| 292 | ret = i2d_PUBKEY(pktmp, pp); | ||
| 293 | EVP_PKEY_free(pktmp); | ||
| 294 | return ret; | ||
| 295 | } | ||
| 296 | #endif | ||
| 297 | |||
| 298 | #ifndef OPENSSL_NO_DSA | ||
| 299 | DSA *d2i_DSA_PUBKEY(DSA **a, unsigned char **pp, | ||
| 300 | long length) | ||
| 301 | { | ||
| 302 | EVP_PKEY *pkey; | ||
| 303 | DSA *key; | ||
| 304 | unsigned char *q; | ||
| 305 | q = *pp; | ||
| 306 | pkey = d2i_PUBKEY(NULL, &q, length); | ||
| 307 | if(!pkey) return NULL; | ||
| 308 | key = EVP_PKEY_get1_DSA(pkey); | ||
| 309 | EVP_PKEY_free(pkey); | ||
| 310 | if(!key) return NULL; | ||
| 311 | *pp = q; | ||
| 312 | if(a) { | ||
| 313 | DSA_free(*a); | ||
| 314 | *a = key; | ||
| 315 | } | ||
| 316 | return key; | ||
| 317 | } | ||
| 318 | |||
| 319 | int i2d_DSA_PUBKEY(DSA *a, unsigned char **pp) | ||
| 320 | { | ||
| 321 | EVP_PKEY *pktmp; | ||
| 322 | int ret; | ||
| 323 | if(!a) return 0; | ||
| 324 | pktmp = EVP_PKEY_new(); | ||
| 325 | if(!pktmp) { | ||
| 326 | ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE); | ||
| 327 | return 0; | ||
| 328 | } | ||
| 329 | EVP_PKEY_set1_DSA(pktmp, a); | ||
| 330 | ret = i2d_PUBKEY(pktmp, pp); | ||
| 331 | EVP_PKEY_free(pktmp); | ||
| 332 | return ret; | ||
| 333 | } | ||
| 334 | #endif | ||
