1 /* p8_pkey.c */ 2 /* Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh (at) cryptsoft.com). 56 * 57 */ 58 59 #include <stdio.h> 60 #include "cryptlib.h" 61 #include <openssl/asn1t.h> 62 #include <openssl/x509.h> 63 64 /* Minor tweak to operation: zero private key data */ 65 static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 66 void *exarg) 67 { 68 /* Since the structure must still be valid use ASN1_OP_FREE_PRE */ 69 if(operation == ASN1_OP_FREE_PRE) { 70 PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval; 71 if (key->pkey->value.octet_string) 72 OPENSSL_cleanse(key->pkey->value.octet_string->data, 73 key->pkey->value.octet_string->length); 74 } 75 return 1; 76 } 77 78 ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = { 79 ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER), 80 ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR), 81 ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_ANY), 82 ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0) 83 } ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO) 84 85 IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO) 86 87 int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj, 88 int version, 89 int ptype, void *pval, 90 unsigned char *penc, int penclen) 91 { 92 unsigned char **ppenc = NULL; 93 if (version >= 0) 94 { 95 if (!ASN1_INTEGER_set(priv->version, version)) 96 return 0; 97 } 98 if (penc) 99 { 100 int pmtype; 101 ASN1_OCTET_STRING *oct; 102 oct = ASN1_OCTET_STRING_new(); 103 if (!oct) 104 return 0; 105 oct->data = penc; 106 ppenc = &oct->data; 107 oct->length = penclen; 108 if (priv->broken == PKCS8_NO_OCTET) 109 pmtype = V_ASN1_SEQUENCE; 110 else 111 pmtype = V_ASN1_OCTET_STRING; 112 ASN1_TYPE_set(priv->pkey, pmtype, oct); 113 } 114 if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval)) 115 { 116 /* If call fails do not swallow 'enc' */ 117 if (ppenc) 118 *ppenc = NULL; 119 return 0; 120 } 121 return 1; 122 } 123 124 int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg, 125 const unsigned char **pk, int *ppklen, 126 X509_ALGOR **pa, 127 PKCS8_PRIV_KEY_INFO *p8) 128 { 129 if (ppkalg) 130 *ppkalg = p8->pkeyalg->algorithm; 131 if(p8->pkey->type == V_ASN1_OCTET_STRING) 132 { 133 p8->broken = PKCS8_OK; 134 if (pk) 135 { 136 *pk = p8->pkey->value.octet_string->data; 137 *ppklen = p8->pkey->value.octet_string->length; 138 } 139 } 140 else if (p8->pkey->type == V_ASN1_SEQUENCE) 141 { 142 p8->broken = PKCS8_NO_OCTET; 143 if (pk) 144 { 145 *pk = p8->pkey->value.sequence->data; 146 *ppklen = p8->pkey->value.sequence->length; 147 } 148 } 149 else 150 return 0; 151 if (pa) 152 *pa = p8->pkeyalg; 153 return 1; 154 } 155 156
