1 /* $OpenBSD: x_pkey.c,v 1.15 2014/07/12 16:03:36 miod Exp $ */ 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 <string.h> 61 62 #include <openssl/asn1_mac.h> 63 #include <openssl/err.h> 64 #include <openssl/evp.h> 65 #include <openssl/objects.h> 66 #include <openssl/x509.h> 67 68 /* need to implement */ 69 int 70 i2d_X509_PKEY(X509_PKEY *a, unsigned char **pp) 71 { 72 return (0); 73 } 74 75 X509_PKEY * 76 d2i_X509_PKEY(X509_PKEY **a, const unsigned char **pp, long length) 77 { 78 int i; 79 M_ASN1_D2I_vars(a, X509_PKEY *, X509_PKEY_new); 80 81 M_ASN1_D2I_Init(); 82 M_ASN1_D2I_start_sequence(); 83 M_ASN1_D2I_get_x(X509_ALGOR, ret->enc_algor, d2i_X509_ALGOR); 84 M_ASN1_D2I_get_x(ASN1_OCTET_STRING, ret->enc_pkey, 85 d2i_ASN1_OCTET_STRING); 86 87 ret->cipher.cipher = EVP_get_cipherbyname( 88 OBJ_nid2ln(OBJ_obj2nid(ret->enc_algor->algorithm))); 89 if (ret->cipher.cipher == NULL) { 90 c.error = ASN1_R_UNSUPPORTED_CIPHER; 91 c.line = __LINE__; 92 goto err; 93 } 94 if (ret->enc_algor->parameter->type == V_ASN1_OCTET_STRING) { 95 i = ret->enc_algor->parameter->value.octet_string->length; 96 if (i > EVP_MAX_IV_LENGTH) { 97 c.error = ASN1_R_IV_TOO_LARGE; 98 c.line = __LINE__; 99 goto err; 100 } 101 memcpy(ret->cipher.iv, 102 ret->enc_algor->parameter->value.octet_string->data, i); 103 } else 104 memset(ret->cipher.iv, 0, EVP_MAX_IV_LENGTH); 105 M_ASN1_D2I_Finish(a, X509_PKEY_free, ASN1_F_D2I_X509_PKEY); 106 } 107 108 X509_PKEY * 109 X509_PKEY_new(void) 110 { 111 X509_PKEY *ret = NULL; 112 113 if ((ret = malloc(sizeof(X509_PKEY))) == NULL) { 114 ASN1_MAC_H_err(ASN1_F_X509_PKEY_NEW, ERR_R_MALLOC_FAILURE, 115 __LINE__); 116 return NULL; 117 } 118 ret->version = 0; 119 if ((ret->enc_algor = X509_ALGOR_new()) == NULL) { 120 free(ret); 121 return NULL; 122 } 123 if ((ret->enc_pkey = M_ASN1_OCTET_STRING_new()) == NULL) { 124 X509_ALGOR_free(ret->enc_algor); 125 free(ret); 126 return NULL; 127 } 128 ret->dec_pkey = NULL; 129 ret->key_length = 0; 130 ret->key_data = NULL; 131 ret->key_free = 0; 132 ret->cipher.cipher = NULL; 133 memset(ret->cipher.iv, 0, EVP_MAX_IV_LENGTH); 134 ret->references = 1; 135 return (ret); 136 } 137 138 void 139 X509_PKEY_free(X509_PKEY *x) 140 { 141 int i; 142 143 if (x == NULL) 144 return; 145 146 i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_X509_PKEY); 147 if (i > 0) 148 return; 149 150 if (x->enc_algor != NULL) 151 X509_ALGOR_free(x->enc_algor); 152 M_ASN1_OCTET_STRING_free(x->enc_pkey); 153 EVP_PKEY_free(x->dec_pkey); 154 if ((x->key_data != NULL) && (x->key_free)) 155 free(x->key_data); 156 free(x); 157 } 158