d2i_pu.c revision 109998
155682Smarkm/* crypto/asn1/d2i_pu.c */ 255682Smarkm/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355682Smarkm * All rights reserved. 455682Smarkm * 555682Smarkm * This package is an SSL implementation written 655682Smarkm * by Eric Young (eay@cryptsoft.com). 755682Smarkm * The implementation was written so as to conform with Netscapes SSL. 855682Smarkm * 955682Smarkm * This library is free for commercial and non-commercial use as long as 1055682Smarkm * the following conditions are aheared to. The following conditions 1155682Smarkm * apply to all code found in this distribution, be it the RC4, RSA, 1255682Smarkm * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355682Smarkm * included with this distribution is covered by the same copyright terms 1455682Smarkm * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555682Smarkm * 1655682Smarkm * Copyright remains Eric Young's, and as such any Copyright notices in 1755682Smarkm * the code are not to be removed. 1855682Smarkm * If this package is used in a product, Eric Young should be given attribution 1955682Smarkm * as the author of the parts of the library used. 2055682Smarkm * This can be in the form of a textual message at program startup or 2155682Smarkm * in documentation (online or textual) provided with the package. 2255682Smarkm * 2355682Smarkm * Redistribution and use in source and binary forms, with or without 2455682Smarkm * modification, are permitted provided that the following conditions 2555682Smarkm * are met: 2655682Smarkm * 1. Redistributions of source code must retain the copyright 2755682Smarkm * notice, this list of conditions and the following disclaimer. 2855682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 2955682Smarkm * notice, this list of conditions and the following disclaimer in the 3055682Smarkm * documentation and/or other materials provided with the distribution. 3155682Smarkm * 3. All advertising materials mentioning features or use of this software 3255682Smarkm * must display the following acknowledgement: 3355682Smarkm * "This product includes cryptographic software written by 3455682Smarkm * Eric Young (eay@cryptsoft.com)" 3555682Smarkm * The word 'cryptographic' can be left out if the rouines from the library 36178825Sdfr * being used are not cryptographic related :-). 3755682Smarkm * 4. If you include any Windows specific code (or a derivative thereof) from 3855682Smarkm * the apps directory (application code) you must include an acknowledgement: 3955682Smarkm * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055682Smarkm * 4155682Smarkm * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42178825Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48178825Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155682Smarkm * SUCH DAMAGE. 5255682Smarkm * 5355682Smarkm * The licence and distribution terms for any publically available version or 5455682Smarkm * derivative of this code cannot be changed. i.e. this code cannot simply be 5555682Smarkm * copied and put under another distribution licence 5655682Smarkm * [including the GNU Public Licence.] 5755682Smarkm */ 58 59#include <stdio.h> 60#include "cryptlib.h" 61#include <openssl/bn.h> 62#include <openssl/evp.h> 63#include <openssl/objects.h> 64#include <openssl/asn1.h> 65#ifndef OPENSSL_NO_RSA 66#include <openssl/rsa.h> 67#endif 68#ifndef OPENSSL_NO_DSA 69#include <openssl/dsa.h> 70#endif 71 72EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, unsigned char **pp, 73 long length) 74 { 75 EVP_PKEY *ret; 76 77 if ((a == NULL) || (*a == NULL)) 78 { 79 if ((ret=EVP_PKEY_new()) == NULL) 80 { 81 ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_EVP_LIB); 82 return(NULL); 83 } 84 } 85 else ret= *a; 86 87 ret->save_type=type; 88 ret->type=EVP_PKEY_type(type); 89 switch (ret->type) 90 { 91#ifndef OPENSSL_NO_RSA 92 case EVP_PKEY_RSA: 93 if ((ret->pkey.rsa=d2i_RSAPublicKey(NULL, 94 (const unsigned char **)pp,length)) == NULL) /* TMP UGLY CAST */ 95 { 96 ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_ASN1_LIB); 97 goto err; 98 } 99 break; 100#endif 101#ifndef OPENSSL_NO_DSA 102 case EVP_PKEY_DSA: 103 if ((ret->pkey.dsa=d2i_DSAPublicKey(NULL, 104 (const unsigned char **)pp,length)) == NULL) /* TMP UGLY CAST */ 105 { 106 ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_ASN1_LIB); 107 goto err; 108 } 109 break; 110#endif 111 default: 112 ASN1err(ASN1_F_D2I_PUBLICKEY,ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); 113 goto err; 114 /* break; */ 115 } 116 if (a != NULL) (*a)=ret; 117 return(ret); 118err: 119 if ((ret != NULL) && ((a == NULL) || (*a != ret))) EVP_PKEY_free(ret); 120 return(NULL); 121 } 122 123