Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* evp_pkey.c */ |
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| 3 | * project 1999. |
| 4 | */ |
| 5 | /* ==================================================================== |
| 6 | * Copyright (c) 1999-2005 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 <stdlib.h> |
| 61 | #include "cryptlib.h" |
| 62 | #include <openssl/x509.h> |
| 63 | #include <openssl/rand.h> |
| 64 | #include "asn1_locl.h" |
| 65 | |
| 66 | /* Extract a private key from a PKCS8 structure */ |
| 67 | |
| 68 | EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8) |
| 69 | { |
| 70 | EVP_PKEY *pkey = NULL; |
| 71 | ASN1_OBJECT *algoid; |
| 72 | char obj_tmp[80]; |
| 73 | |
| 74 | if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8)) |
| 75 | return NULL; |
| 76 | |
| 77 | if (!(pkey = EVP_PKEY_new())) { |
| 78 | EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE); |
| 79 | return NULL; |
| 80 | } |
| 81 | |
| 82 | if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) |
| 83 | { |
| 84 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM); |
| 85 | i2t_ASN1_OBJECT(obj_tmp, 80, algoid); |
| 86 | ERR_add_error_data(2, "TYPE=", obj_tmp); |
| 87 | goto error; |
| 88 | } |
| 89 | |
| 90 | if (pkey->ameth->priv_decode) |
| 91 | { |
| 92 | if (!pkey->ameth->priv_decode(pkey, p8)) |
| 93 | { |
| 94 | EVPerr(EVP_F_EVP_PKCS82PKEY, |
| 95 | EVP_R_PRIVATE_KEY_DECODE_ERROR); |
| 96 | goto error; |
| 97 | } |
| 98 | } |
| 99 | else |
| 100 | { |
| 101 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED); |
| 102 | goto error; |
| 103 | } |
| 104 | |
| 105 | return pkey; |
| 106 | |
| 107 | error: |
| 108 | EVP_PKEY_free (pkey); |
| 109 | return NULL; |
| 110 | } |
| 111 | |
| 112 | PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey) |
| 113 | { |
| 114 | return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK); |
| 115 | } |
| 116 | |
| 117 | /* Turn a private key into a PKCS8 structure */ |
| 118 | |
| 119 | PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken) |
| 120 | { |
| 121 | PKCS8_PRIV_KEY_INFO *p8; |
| 122 | |
| 123 | if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) { |
| 124 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,ERR_R_MALLOC_FAILURE); |
| 125 | return NULL; |
| 126 | } |
| 127 | p8->broken = broken; |
| 128 | |
| 129 | if (pkey->ameth) |
| 130 | { |
| 131 | if (pkey->ameth->priv_encode) |
| 132 | { |
| 133 | if (!pkey->ameth->priv_encode(p8, pkey)) |
| 134 | { |
| 135 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, |
| 136 | EVP_R_PRIVATE_KEY_ENCODE_ERROR); |
| 137 | goto error; |
| 138 | } |
| 139 | } |
| 140 | else |
| 141 | { |
| 142 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, |
| 143 | EVP_R_METHOD_NOT_SUPPORTED); |
| 144 | goto error; |
| 145 | } |
| 146 | } |
| 147 | else |
| 148 | { |
| 149 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, |
| 150 | EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM); |
| 151 | goto error; |
| 152 | } |
| 153 | RAND_add(p8->pkey->value.octet_string->data, |
| 154 | p8->pkey->value.octet_string->length, 0.0); |
| 155 | return p8; |
| 156 | error: |
| 157 | PKCS8_PRIV_KEY_INFO_free(p8); |
| 158 | return NULL; |
| 159 | } |
| 160 | |
| 161 | PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken) |
| 162 | { |
| 163 | switch (broken) { |
| 164 | |
| 165 | case PKCS8_OK: |
| 166 | p8->broken = PKCS8_OK; |
| 167 | return p8; |
| 168 | break; |
| 169 | |
| 170 | case PKCS8_NO_OCTET: |
| 171 | p8->broken = PKCS8_NO_OCTET; |
| 172 | p8->pkey->type = V_ASN1_SEQUENCE; |
| 173 | return p8; |
| 174 | break; |
| 175 | |
| 176 | default: |
| 177 | EVPerr(EVP_F_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE); |
| 178 | return NULL; |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | /* EVP_PKEY attribute functions */ |
| 183 | |
| 184 | int EVP_PKEY_get_attr_count(const EVP_PKEY *key) |
| 185 | { |
| 186 | return X509at_get_attr_count(key->attributes); |
| 187 | } |
| 188 | |
| 189 | int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, |
| 190 | int lastpos) |
| 191 | { |
| 192 | return X509at_get_attr_by_NID(key->attributes, nid, lastpos); |
| 193 | } |
| 194 | |
| 195 | int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, ASN1_OBJECT *obj, |
| 196 | int lastpos) |
| 197 | { |
| 198 | return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos); |
| 199 | } |
| 200 | |
| 201 | X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc) |
| 202 | { |
| 203 | return X509at_get_attr(key->attributes, loc); |
| 204 | } |
| 205 | |
| 206 | X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc) |
| 207 | { |
| 208 | return X509at_delete_attr(key->attributes, loc); |
| 209 | } |
| 210 | |
| 211 | int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr) |
| 212 | { |
| 213 | if(X509at_add1_attr(&key->attributes, attr)) return 1; |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key, |
| 218 | const ASN1_OBJECT *obj, int type, |
| 219 | const unsigned char *bytes, int len) |
| 220 | { |
| 221 | if(X509at_add1_attr_by_OBJ(&key->attributes, obj, |
| 222 | type, bytes, len)) return 1; |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key, |
| 227 | int nid, int type, |
| 228 | const unsigned char *bytes, int len) |
| 229 | { |
| 230 | if(X509at_add1_attr_by_NID(&key->attributes, nid, |
| 231 | type, bytes, len)) return 1; |
| 232 | return 0; |
| 233 | } |
| 234 | |
| 235 | int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key, |
| 236 | const char *attrname, int type, |
| 237 | const unsigned char *bytes, int len) |
| 238 | { |
| 239 | if(X509at_add1_attr_by_txt(&key->attributes, attrname, |
| 240 | type, bytes, len)) return 1; |
| 241 | return 0; |
| 242 | } |