lib/libcrypto/rsa/rsa_asn1.c

   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 }