Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| 2 | * All rights reserved. |
| 3 | * |
| 4 | * This package is an SSL implementation written |
| 5 | * by Eric Young (eay@cryptsoft.com). |
| 6 | * The implementation was written so as to conform with Netscapes SSL. |
| 7 | * |
| 8 | * This library is free for commercial and non-commercial use as long as |
| 9 | * the following conditions are aheared to. The following conditions |
| 10 | * apply to all code found in this distribution, be it the RC4, RSA, |
| 11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| 12 | * included with this distribution is covered by the same copyright terms |
| 13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| 14 | * |
| 15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
| 16 | * the code are not to be removed. |
| 17 | * If this package is used in a product, Eric Young should be given attribution |
| 18 | * as the author of the parts of the library used. |
| 19 | * This can be in the form of a textual message at program startup or |
| 20 | * in documentation (online or textual) provided with the package. |
| 21 | * |
| 22 | * Redistribution and use in source and binary forms, with or without |
| 23 | * modification, are permitted provided that the following conditions |
| 24 | * are met: |
| 25 | * 1. Redistributions of source code must retain the copyright |
| 26 | * notice, this list of conditions and the following disclaimer. |
| 27 | * 2. Redistributions in binary form must reproduce the above copyright |
| 28 | * notice, this list of conditions and the following disclaimer in the |
| 29 | * documentation and/or other materials provided with the distribution. |
| 30 | * 3. All advertising materials mentioning features or use of this software |
| 31 | * must display the following acknowledgement: |
| 32 | * "This product includes cryptographic software written by |
| 33 | * Eric Young (eay@cryptsoft.com)" |
| 34 | * The word 'cryptographic' can be left out if the rouines from the library |
| 35 | * being used are not cryptographic related :-). |
| 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
| 37 | * the apps directory (application code) you must include an acknowledgement: |
| 38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| 39 | * |
| 40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| 41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 50 | * SUCH DAMAGE. |
| 51 | * |
| 52 | * The licence and distribution terms for any publically available version or |
| 53 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
| 54 | * copied and put under another distribution licence |
| 55 | * [including the GNU Public Licence.] */ |
| 56 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 57 | #include <openssl/ssl.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 58 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 59 | #include <limits.h> |
| 60 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 61 | #include <openssl/err.h> |
| 62 | #include <openssl/evp.h> |
| 63 | #include <openssl/mem.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 64 | #include <openssl/x509.h> |
| 65 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 66 | #include "internal.h" |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 67 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 68 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 69 | static int ssl_set_cert(CERT *c, X509 *x509); |
| 70 | static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey); |
| 71 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 72 | static int is_key_type_supported(int key_type) { |
| 73 | return key_type == EVP_PKEY_RSA || key_type == EVP_PKEY_EC; |
| 74 | } |
| 75 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 76 | int SSL_use_certificate(SSL *ssl, X509 *x) { |
| 77 | if (x == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 78 | OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 79 | return 0; |
| 80 | } |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 81 | return ssl_set_cert(ssl->cert, x); |
| 82 | } |
| 83 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 84 | int SSL_use_certificate_ASN1(SSL *ssl, const uint8_t *der, size_t der_len) { |
| 85 | if (der_len > LONG_MAX) { |
| 86 | OPENSSL_PUT_ERROR(SSL, ERR_R_OVERFLOW); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 87 | return 0; |
| 88 | } |
| 89 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 90 | const uint8_t *p = der; |
| 91 | X509 *x509 = d2i_X509(NULL, &p, (long)der_len); |
| 92 | if (x509 == NULL || p != der + der_len) { |
| 93 | OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB); |
| 94 | X509_free(x509); |
| 95 | return 0; |
| 96 | } |
| 97 | |
| 98 | int ret = SSL_use_certificate(ssl, x509); |
| 99 | X509_free(x509); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 100 | return ret; |
| 101 | } |
| 102 | |
| 103 | int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa) { |
| 104 | EVP_PKEY *pkey; |
| 105 | int ret; |
| 106 | |
| 107 | if (rsa == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 108 | OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 109 | return 0; |
| 110 | } |
| 111 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 112 | pkey = EVP_PKEY_new(); |
| 113 | if (pkey == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 114 | OPENSSL_PUT_ERROR(SSL, ERR_R_EVP_LIB); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | RSA_up_ref(rsa); |
| 119 | EVP_PKEY_assign_RSA(pkey, rsa); |
| 120 | |
| 121 | ret = ssl_set_pkey(ssl->cert, pkey); |
| 122 | EVP_PKEY_free(pkey); |
| 123 | |
| 124 | return ret; |
| 125 | } |
| 126 | |
| 127 | static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 128 | if (!is_key_type_supported(pkey->type)) { |
| 129 | OPENSSL_PUT_ERROR(SSL, SSL_R_UNKNOWN_CERTIFICATE_TYPE); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 130 | return 0; |
| 131 | } |
| 132 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 133 | if (c->x509 != NULL) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 134 | /* Sanity-check that the private key and the certificate match, unless the |
| 135 | * key is opaque (in case of, say, a smartcard). */ |
| 136 | if (!EVP_PKEY_is_opaque(pkey) && |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 137 | !X509_check_private_key(c->x509, pkey)) { |
| 138 | X509_free(c->x509); |
| 139 | c->x509 = NULL; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 140 | return 0; |
| 141 | } |
| 142 | } |
| 143 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 144 | EVP_PKEY_free(c->privatekey); |
| 145 | c->privatekey = EVP_PKEY_up_ref(pkey); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 146 | |
| 147 | return 1; |
| 148 | } |
| 149 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 150 | int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const uint8_t *der, size_t der_len) { |
| 151 | RSA *rsa = RSA_private_key_from_bytes(der, der_len); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 152 | if (rsa == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 153 | OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 154 | return 0; |
| 155 | } |
| 156 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 157 | int ret = SSL_use_RSAPrivateKey(ssl, rsa); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 158 | RSA_free(rsa); |
| 159 | return ret; |
| 160 | } |
| 161 | |
| 162 | int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey) { |
| 163 | int ret; |
| 164 | |
| 165 | if (pkey == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 166 | OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 167 | return 0; |
| 168 | } |
| 169 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 170 | ret = ssl_set_pkey(ssl->cert, pkey); |
| 171 | return ret; |
| 172 | } |
| 173 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 174 | int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const uint8_t *der, |
| 175 | size_t der_len) { |
| 176 | if (der_len > LONG_MAX) { |
| 177 | OPENSSL_PUT_ERROR(SSL, ERR_R_OVERFLOW); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 178 | return 0; |
| 179 | } |
| 180 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 181 | const uint8_t *p = der; |
| 182 | EVP_PKEY *pkey = d2i_PrivateKey(type, NULL, &p, (long)der_len); |
| 183 | if (pkey == NULL || p != der + der_len) { |
| 184 | OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB); |
| 185 | EVP_PKEY_free(pkey); |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | int ret = SSL_use_PrivateKey(ssl, pkey); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 190 | EVP_PKEY_free(pkey); |
| 191 | return ret; |
| 192 | } |
| 193 | |
| 194 | int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x) { |
| 195 | if (x == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 196 | OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 197 | return 0; |
| 198 | } |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 199 | |
| 200 | return ssl_set_cert(ctx->cert, x); |
| 201 | } |
| 202 | |
| 203 | static int ssl_set_cert(CERT *c, X509 *x) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 204 | EVP_PKEY *pkey = X509_get_pubkey(x); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 205 | if (pkey == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 206 | OPENSSL_PUT_ERROR(SSL, SSL_R_X509_LIB); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 207 | return 0; |
| 208 | } |
| 209 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 210 | if (!is_key_type_supported(pkey->type)) { |
| 211 | OPENSSL_PUT_ERROR(SSL, SSL_R_UNKNOWN_CERTIFICATE_TYPE); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 212 | EVP_PKEY_free(pkey); |
| 213 | return 0; |
| 214 | } |
| 215 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 216 | if (c->privatekey != NULL) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 217 | /* Sanity-check that the private key and the certificate match, unless the |
| 218 | * key is opaque (in case of, say, a smartcard). */ |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 219 | if (!EVP_PKEY_is_opaque(c->privatekey) && |
| 220 | !X509_check_private_key(x, c->privatekey)) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 221 | /* don't fail for a cert/key mismatch, just free current private key |
| 222 | * (when switching to a different cert & key, first this function should |
| 223 | * be used, then ssl_set_pkey */ |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 224 | EVP_PKEY_free(c->privatekey); |
| 225 | c->privatekey = NULL; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 226 | /* clear error queue */ |
| 227 | ERR_clear_error(); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | EVP_PKEY_free(pkey); |
| 232 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 233 | X509_free(c->x509); |
| 234 | c->x509 = X509_up_ref(x); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 235 | |
| 236 | return 1; |
| 237 | } |
| 238 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 239 | int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, size_t der_len, |
| 240 | const uint8_t *der) { |
| 241 | if (der_len > LONG_MAX) { |
| 242 | OPENSSL_PUT_ERROR(SSL, ERR_R_OVERFLOW); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 243 | return 0; |
| 244 | } |
| 245 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 246 | const uint8_t *p = der; |
| 247 | X509 *x509 = d2i_X509(NULL, &p, (long)der_len); |
| 248 | if (x509 == NULL || p != der + der_len) { |
| 249 | OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB); |
| 250 | X509_free(x509); |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | int ret = SSL_CTX_use_certificate(ctx, x509); |
| 255 | X509_free(x509); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 256 | return ret; |
| 257 | } |
| 258 | |
| 259 | int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa) { |
| 260 | int ret; |
| 261 | EVP_PKEY *pkey; |
| 262 | |
| 263 | if (rsa == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 264 | OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 265 | return 0; |
| 266 | } |
| 267 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 268 | pkey = EVP_PKEY_new(); |
| 269 | if (pkey == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 270 | OPENSSL_PUT_ERROR(SSL, ERR_R_EVP_LIB); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | RSA_up_ref(rsa); |
| 275 | EVP_PKEY_assign_RSA(pkey, rsa); |
| 276 | |
| 277 | ret = ssl_set_pkey(ctx->cert, pkey); |
| 278 | EVP_PKEY_free(pkey); |
| 279 | return ret; |
| 280 | } |
| 281 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 282 | int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const uint8_t *der, |
| 283 | size_t der_len) { |
| 284 | RSA *rsa = RSA_private_key_from_bytes(der, der_len); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 285 | if (rsa == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 286 | OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 287 | return 0; |
| 288 | } |
| 289 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 290 | int ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 291 | RSA_free(rsa); |
| 292 | return ret; |
| 293 | } |
| 294 | |
| 295 | int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey) { |
| 296 | if (pkey == NULL) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 297 | OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 298 | return 0; |
| 299 | } |
| 300 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 301 | return ssl_set_pkey(ctx->cert, pkey); |
| 302 | } |
| 303 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 304 | int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, const uint8_t *der, |
| 305 | size_t der_len) { |
| 306 | if (der_len > LONG_MAX) { |
| 307 | OPENSSL_PUT_ERROR(SSL, ERR_R_OVERFLOW); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 308 | return 0; |
| 309 | } |
| 310 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 311 | const uint8_t *p = der; |
| 312 | EVP_PKEY *pkey = d2i_PrivateKey(type, NULL, &p, (long)der_len); |
| 313 | if (pkey == NULL || p != der + der_len) { |
| 314 | OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB); |
| 315 | EVP_PKEY_free(pkey); |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | int ret = SSL_CTX_use_PrivateKey(ctx, pkey); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 320 | EVP_PKEY_free(pkey); |
| 321 | return ret; |
| 322 | } |
| 323 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 324 | void SSL_set_private_key_method(SSL *ssl, |
| 325 | const SSL_PRIVATE_KEY_METHOD *key_method) { |
| 326 | ssl->cert->key_method = key_method; |
| 327 | } |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 328 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 329 | int SSL_set_private_key_digest_prefs(SSL *ssl, const int *digest_nids, |
| 330 | size_t num_digests) { |
| 331 | OPENSSL_free(ssl->cert->digest_nids); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 332 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 333 | ssl->cert->num_digest_nids = 0; |
| 334 | ssl->cert->digest_nids = BUF_memdup(digest_nids, num_digests*sizeof(int)); |
| 335 | if (ssl->cert->digest_nids == NULL) { |
| 336 | OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); |
| 337 | return 0; |
| 338 | } |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 339 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 340 | ssl->cert->num_digest_nids = num_digests; |
| 341 | return 1; |
| 342 | } |
| 343 | |
| 344 | int ssl_has_private_key(SSL *ssl) { |
| 345 | return ssl->cert->privatekey != NULL || ssl->cert->key_method != NULL; |
| 346 | } |
| 347 | |
| 348 | int ssl_private_key_type(SSL *ssl) { |
| 349 | if (ssl->cert->key_method != NULL) { |
| 350 | return ssl->cert->key_method->type(ssl); |
| 351 | } |
| 352 | return EVP_PKEY_id(ssl->cert->privatekey); |
| 353 | } |
| 354 | |
| 355 | size_t ssl_private_key_max_signature_len(SSL *ssl) { |
| 356 | if (ssl->cert->key_method != NULL) { |
| 357 | return ssl->cert->key_method->max_signature_len(ssl); |
| 358 | } |
| 359 | return EVP_PKEY_size(ssl->cert->privatekey); |
| 360 | } |
| 361 | |
| 362 | enum ssl_private_key_result_t ssl_private_key_sign( |
| 363 | SSL *ssl, uint8_t *out, size_t *out_len, size_t max_out, const EVP_MD *md, |
| 364 | const uint8_t *in, size_t in_len) { |
| 365 | if (ssl->cert->key_method != NULL) { |
| 366 | return ssl->cert->key_method->sign(ssl, out, out_len, max_out, md, in, |
| 367 | in_len); |
| 368 | } |
| 369 | |
| 370 | enum ssl_private_key_result_t ret = ssl_private_key_failure; |
| 371 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(ssl->cert->privatekey, NULL); |
| 372 | if (ctx == NULL) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 373 | goto end; |
| 374 | } |
| 375 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 376 | size_t len = max_out; |
| 377 | if (!EVP_PKEY_sign_init(ctx) || |
| 378 | !EVP_PKEY_CTX_set_signature_md(ctx, md) || |
| 379 | !EVP_PKEY_sign(ctx, out, &len, in, in_len)) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 380 | goto end; |
| 381 | } |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 382 | *out_len = len; |
| 383 | ret = ssl_private_key_success; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 384 | |
| 385 | end: |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 386 | EVP_PKEY_CTX_free(ctx); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 387 | return ret; |
| 388 | } |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 389 | |
| 390 | enum ssl_private_key_result_t ssl_private_key_sign_complete( |
| 391 | SSL *ssl, uint8_t *out, size_t *out_len, size_t max_out) { |
| 392 | /* Only custom keys may be asynchronous. */ |
| 393 | return ssl->cert->key_method->sign_complete(ssl, out, out_len, max_out); |
| 394 | } |
Kenny Root | e99801b | 2015-11-06 15:31:15 -0800 | [diff] [blame] | 395 | |
| 396 | enum ssl_private_key_result_t ssl_private_key_decrypt( |
| 397 | SSL *ssl, uint8_t *out, size_t *out_len, size_t max_out, |
| 398 | const uint8_t *in, size_t in_len) { |
| 399 | if (ssl->cert->key_method != NULL) { |
| 400 | return ssl->cert->key_method->decrypt(ssl, out, out_len, max_out, in, |
| 401 | in_len); |
| 402 | } |
| 403 | |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 404 | RSA *rsa = EVP_PKEY_get0_RSA(ssl->cert->privatekey); |
| 405 | if (rsa == NULL) { |
Kenny Root | e99801b | 2015-11-06 15:31:15 -0800 | [diff] [blame] | 406 | /* Decrypt operations are only supported for RSA keys. */ |
| 407 | OPENSSL_PUT_ERROR(SSL, ERR_R_INTERNAL_ERROR); |
| 408 | return ssl_private_key_failure; |
| 409 | } |
| 410 | |
Kenny Root | e99801b | 2015-11-06 15:31:15 -0800 | [diff] [blame] | 411 | /* Decrypt with no padding. PKCS#1 padding will be removed as part |
| 412 | * of the timing-sensitive code by the caller. */ |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 413 | if (!RSA_decrypt(rsa, out_len, out, max_out, in, in_len, RSA_NO_PADDING)) { |
| 414 | return ssl_private_key_failure; |
Kenny Root | e99801b | 2015-11-06 15:31:15 -0800 | [diff] [blame] | 415 | } |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 416 | return ssl_private_key_success; |
Kenny Root | e99801b | 2015-11-06 15:31:15 -0800 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | enum ssl_private_key_result_t ssl_private_key_decrypt_complete( |
| 420 | SSL *ssl, uint8_t *out, size_t *out_len, size_t max_out) { |
| 421 | /* Only custom keys may be asynchronous. */ |
| 422 | return ssl->cert->key_method->decrypt_complete(ssl, out, out_len, max_out); |
| 423 | } |