1 /* $OpenBSD: rsa_asn1.c,v 1.13 2016/12/30 15:47:07 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 61 #include <openssl/asn1t.h> 62 #include <openssl/bn.h> 63 #include <openssl/rsa.h> 64 #include <openssl/x509.h> 65 66 /* Override the default free and new methods */ 67 static int 68 rsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg) 69 { 70 if (operation == ASN1_OP_NEW_PRE) { 71 *pval = (ASN1_VALUE *)RSA_new(); 72 if (*pval) 73 return 2; 74 return 0; 75 } else if (operation == ASN1_OP_FREE_PRE) { 76 RSA_free((RSA *)*pval); 77 *pval = NULL; 78 return 2; 79 } 80 return 1; 81 } 82 83 static const ASN1_AUX RSAPrivateKey_aux = { 84 .app_data = NULL, 85 .flags = 0, 86 .ref_offset = 0, 87 .ref_lock = 0, 88 .asn1_cb = rsa_cb, 89 .enc_offset = 0, 90 }; 91 static const ASN1_TEMPLATE RSAPrivateKey_seq_tt[] = { 92 { 93 .flags = 0, 94 .tag = 0, 95 .offset = offsetof(RSA, version), 96 .field_name = "version", 97 .item = &LONG_it, 98 }, 99 { 100 .flags = 0, 101 .tag = 0, 102 .offset = offsetof(RSA, n), 103 .field_name = "n", 104 .item = &BIGNUM_it, 105 }, 106 { 107 .flags = 0, 108 .tag = 0, 109 .offset = offsetof(RSA, e), 110 .field_name = "e", 111 .item = &BIGNUM_it, 112 }, 113 { 114 .flags = 0, 115 .tag = 0, 116 .offset = offsetof(RSA, d), 117 .field_name = "d", 118 .item = &BIGNUM_it, 119 }, 120 { 121 .flags = 0, 122 .tag = 0, 123 .offset = offsetof(RSA, p), 124 .field_name = "p", 125 .item = &BIGNUM_it, 126 }, 127 { 128 .flags = 0, 129 .tag = 0, 130 .offset = offsetof(RSA, q), 131 .field_name = "q", 132 .item = &BIGNUM_it, 133 }, 134 { 135 .flags = 0, 136 .tag = 0, 137 .offset = offsetof(RSA, dmp1), 138 .field_name = "dmp1", 139 .item = &BIGNUM_it, 140 }, 141 { 142 .flags = 0, 143 .tag = 0, 144 .offset = offsetof(RSA, dmq1), 145 .field_name = "dmq1", 146 .item = &BIGNUM_it, 147 }, 148 { 149 .flags = 0, 150 .tag = 0, 151 .offset = offsetof(RSA, iqmp), 152 .field_name = "iqmp", 153 .item = &BIGNUM_it, 154 }, 155 }; 156 157 const ASN1_ITEM RSAPrivateKey_it = { 158 .itype = ASN1_ITYPE_SEQUENCE, 159 .utype = V_ASN1_SEQUENCE, 160 .templates = RSAPrivateKey_seq_tt, 161 .tcount = sizeof(RSAPrivateKey_seq_tt) / sizeof(ASN1_TEMPLATE), 162 .funcs = &RSAPrivateKey_aux, 163 .size = sizeof(RSA), 164 .sname = "RSA", 165 }; 166 167 168 static const ASN1_AUX RSAPublicKey_aux = { 169 .app_data = NULL, 170 .flags = 0, 171 .ref_offset = 0, 172 .ref_lock = 0, 173 .asn1_cb = rsa_cb, 174 .enc_offset = 0, 175 }; 176 static const ASN1_TEMPLATE RSAPublicKey_seq_tt[] = { 177 { 178 .flags = 0, 179 .tag = 0, 180 .offset = offsetof(RSA, n), 181 .field_name = "n", 182 .item = &BIGNUM_it, 183 }, 184 { 185 .flags = 0, 186 .tag = 0, 187 .offset = offsetof(RSA, e), 188 .field_name = "e", 189 .item = &BIGNUM_it, 190 }, 191 }; 192 193 const ASN1_ITEM RSAPublicKey_it = { 194 .itype = ASN1_ITYPE_SEQUENCE, 195 .utype = V_ASN1_SEQUENCE, 196 .templates = RSAPublicKey_seq_tt, 197 .tcount = sizeof(RSAPublicKey_seq_tt) / sizeof(ASN1_TEMPLATE), 198 .funcs = &RSAPublicKey_aux, 199 .size = sizeof(RSA), 200 .sname = "RSA", 201 }; 202 203 static const ASN1_TEMPLATE RSA_PSS_PARAMS_seq_tt[] = { 204 { 205 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL, 206 .tag = 0, 207 .offset = offsetof(RSA_PSS_PARAMS, hashAlgorithm), 208 .field_name = "hashAlgorithm", 209 .item = &X509_ALGOR_it, 210 }, 211 { 212 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL, 213 .tag = 1, 214 .offset = offsetof(RSA_PSS_PARAMS, maskGenAlgorithm), 215 .field_name = "maskGenAlgorithm", 216 .item = &X509_ALGOR_it, 217 }, 218 { 219 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL, 220 .tag = 2, 221 .offset = offsetof(RSA_PSS_PARAMS, saltLength), 222 .field_name = "saltLength", 223 .item = &ASN1_INTEGER_it, 224 }, 225 { 226 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL, 227 .tag = 3, 228 .offset = offsetof(RSA_PSS_PARAMS, trailerField), 229 .field_name = "trailerField", 230 .item = &ASN1_INTEGER_it, 231 }, 232 }; 233 234 const ASN1_ITEM RSA_PSS_PARAMS_it = { 235 .itype = ASN1_ITYPE_SEQUENCE, 236 .utype = V_ASN1_SEQUENCE, 237 .templates = RSA_PSS_PARAMS_seq_tt, 238 .tcount = sizeof(RSA_PSS_PARAMS_seq_tt) / sizeof(ASN1_TEMPLATE), 239 .funcs = NULL, 240 .size = sizeof(RSA_PSS_PARAMS), 241 .sname = "RSA_PSS_PARAMS", 242 }; 243 244 245 RSA_PSS_PARAMS * 246 d2i_RSA_PSS_PARAMS(RSA_PSS_PARAMS **a, const unsigned char **in, long len) 247 { 248 return (RSA_PSS_PARAMS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 249 &RSA_PSS_PARAMS_it); 250 } 251 252 int 253 i2d_RSA_PSS_PARAMS(RSA_PSS_PARAMS *a, unsigned char **out) 254 { 255 return ASN1_item_i2d((ASN1_VALUE *)a, out, &RSA_PSS_PARAMS_it); 256 } 257 258 RSA_PSS_PARAMS * 259 RSA_PSS_PARAMS_new(void) 260 { 261 return (RSA_PSS_PARAMS *)ASN1_item_new(&RSA_PSS_PARAMS_it); 262 } 263 264 void 265 RSA_PSS_PARAMS_free(RSA_PSS_PARAMS *a) 266 { 267 ASN1_item_free((ASN1_VALUE *)a, &RSA_PSS_PARAMS_it); 268 } 269 270 271 RSA * 272 d2i_RSAPrivateKey(RSA **a, const unsigned char **in, long len) 273 { 274 return (RSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 275 &RSAPrivateKey_it); 276 } 277 278 int 279 i2d_RSAPrivateKey(const RSA *a, unsigned char **out) 280 { 281 return ASN1_item_i2d((ASN1_VALUE *)a, out, &RSAPrivateKey_it); 282 } 283 284 285 RSA * 286 d2i_RSAPublicKey(RSA **a, const unsigned char **in, long len) 287 { 288 return (RSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 289 &RSAPublicKey_it); 290 } 291 292 int 293 i2d_RSAPublicKey(const RSA *a, unsigned char **out) 294 { 295 return ASN1_item_i2d((ASN1_VALUE *)a, out, &RSAPublicKey_it); 296 } 297 298 RSA * 299 RSAPublicKey_dup(RSA *rsa) 300 { 301 return ASN1_item_dup(&RSAPublicKey_it, rsa); 302 } 303 304 RSA * 305 RSAPrivateKey_dup(RSA *rsa) 306 { 307 return ASN1_item_dup(&RSAPrivateKey_it, rsa); 308 } 309