Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* crypto/asn1/x_pkey.c */ |
| 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 "cryptlib.h" |
| 61 | #include <openssl/evp.h> |
| 62 | #include <openssl/objects.h> |
| 63 | #include <openssl/asn1_mac.h> |
| 64 | #include <openssl/x509.h> |
| 65 | |
| 66 | /* need to implement */ |
| 67 | int i2d_X509_PKEY(X509_PKEY *a, unsigned char **pp) |
| 68 | { |
| 69 | return(0); |
| 70 | } |
| 71 | |
| 72 | X509_PKEY *d2i_X509_PKEY(X509_PKEY **a, const unsigned char **pp, long length) |
| 73 | { |
| 74 | int i; |
| 75 | M_ASN1_D2I_vars(a,X509_PKEY *,X509_PKEY_new); |
| 76 | |
| 77 | M_ASN1_D2I_Init(); |
| 78 | M_ASN1_D2I_start_sequence(); |
| 79 | M_ASN1_D2I_get_x(X509_ALGOR,ret->enc_algor,d2i_X509_ALGOR); |
| 80 | M_ASN1_D2I_get_x(ASN1_OCTET_STRING,ret->enc_pkey,d2i_ASN1_OCTET_STRING); |
| 81 | |
| 82 | ret->cipher.cipher=EVP_get_cipherbyname( |
| 83 | OBJ_nid2ln(OBJ_obj2nid(ret->enc_algor->algorithm))); |
| 84 | if (ret->cipher.cipher == NULL) |
| 85 | { |
| 86 | c.error=ASN1_R_UNSUPPORTED_CIPHER; |
| 87 | c.line=__LINE__; |
| 88 | goto err; |
| 89 | } |
| 90 | if (ret->enc_algor->parameter->type == V_ASN1_OCTET_STRING) |
| 91 | { |
| 92 | i=ret->enc_algor->parameter->value.octet_string->length; |
| 93 | if (i > EVP_MAX_IV_LENGTH) |
| 94 | { |
| 95 | c.error=ASN1_R_IV_TOO_LARGE; |
| 96 | c.line=__LINE__; |
| 97 | goto err; |
| 98 | } |
| 99 | memcpy(ret->cipher.iv, |
| 100 | ret->enc_algor->parameter->value.octet_string->data,i); |
| 101 | } |
| 102 | else |
| 103 | memset(ret->cipher.iv,0,EVP_MAX_IV_LENGTH); |
| 104 | M_ASN1_D2I_Finish(a,X509_PKEY_free,ASN1_F_D2I_X509_PKEY); |
| 105 | } |
| 106 | |
| 107 | X509_PKEY *X509_PKEY_new(void) |
| 108 | { |
| 109 | X509_PKEY *ret=NULL; |
| 110 | ASN1_CTX c; |
| 111 | |
| 112 | M_ASN1_New_Malloc(ret,X509_PKEY); |
| 113 | ret->version=0; |
| 114 | M_ASN1_New(ret->enc_algor,X509_ALGOR_new); |
| 115 | M_ASN1_New(ret->enc_pkey,M_ASN1_OCTET_STRING_new); |
| 116 | ret->dec_pkey=NULL; |
| 117 | ret->key_length=0; |
| 118 | ret->key_data=NULL; |
| 119 | ret->key_free=0; |
| 120 | ret->cipher.cipher=NULL; |
| 121 | memset(ret->cipher.iv,0,EVP_MAX_IV_LENGTH); |
| 122 | ret->references=1; |
| 123 | return(ret); |
| 124 | M_ASN1_New_Error(ASN1_F_X509_PKEY_NEW); |
| 125 | } |
| 126 | |
| 127 | void X509_PKEY_free(X509_PKEY *x) |
| 128 | { |
| 129 | int i; |
| 130 | |
| 131 | if (x == NULL) return; |
| 132 | |
| 133 | i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_X509_PKEY); |
| 134 | #ifdef REF_PRINT |
| 135 | REF_PRINT("X509_PKEY",x); |
| 136 | #endif |
| 137 | if (i > 0) return; |
| 138 | #ifdef REF_CHECK |
| 139 | if (i < 0) |
| 140 | { |
| 141 | fprintf(stderr,"X509_PKEY_free, bad reference count\n"); |
| 142 | abort(); |
| 143 | } |
| 144 | #endif |
| 145 | |
| 146 | if (x->enc_algor != NULL) X509_ALGOR_free(x->enc_algor); |
| 147 | if (x->enc_pkey != NULL) M_ASN1_OCTET_STRING_free(x->enc_pkey); |
| 148 | if (x->dec_pkey != NULL)EVP_PKEY_free(x->dec_pkey); |
| 149 | if ((x->key_data != NULL) && (x->key_free)) OPENSSL_free(x->key_data); |
| 150 | OPENSSL_free(x); |
| 151 | } |