d2i_pu.c revision 238405
1123123Simp/* crypto/asn1/d2i_pu.c */ 2123123Simp/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3123123Simp * All rights reserved. 4123123Simp * 5123123Simp * This package is an SSL implementation written 6123123Simp * by Eric Young (eay@cryptsoft.com). 7155064Srik * The implementation was written so as to conform with Netscapes SSL. 8123123Simp * 9123123Simp * This library is free for commercial and non-commercial use as long as 10123123Simp * the following conditions are aheared to. The following conditions 11123123Simp * apply to all code found in this distribution, be it the RC4, RSA, 12123123Simp * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13123123Simp * included with this distribution is covered by the same copyright terms 14123123Simp * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15123123Simp * 16123123Simp * Copyright remains Eric Young's, and as such any Copyright notices in 17155064Srik * the code are not to be removed. 18123123Simp * If this package is used in a product, Eric Young should be given attribution 19162253Scharnier * as the author of the parts of the library used. 20162253Scharnier * This can be in the form of a textual message at program startup or 21162253Scharnier * in documentation (online or textual) provided with the package. 22162253Scharnier * 23123123Simp * Redistribution and use in source and binary forms, with or without 24123123Simp * modification, are permitted provided that the following conditions 25123123Simp * are met: 26123123Simp * 1. Redistributions of source code must retain the copyright 27123123Simp * notice, this list of conditions and the following disclaimer. 28123123Simp * 2. Redistributions in binary form must reproduce the above copyright 29123123Simp * notice, this list of conditions and the following disclaimer in the 30123123Simp * documentation and/or other materials provided with the distribution. 31123123Simp * 3. All advertising materials mentioning features or use of this software 32123123Simp * must display the following acknowledgement: 33123123Simp * "This product includes cryptographic software written by 34123123Simp * Eric Young (eay@cryptsoft.com)" 35123123Simp * The word 'cryptographic' can be left out if the rouines from the library 36123123Simp * being used are not cryptographic related :-). 37123123Simp * 4. If you include any Windows specific code (or a derivative thereof) from 38123123Simp * the apps directory (application code) you must include an acknowledgement: 39123123Simp * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40123123Simp * 41155064Srik * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42155064Srik * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43123123Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44123123Simp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45123123Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46123123Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47123123Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48123123Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49123123Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50155064Srik * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51123123Simp * SUCH DAMAGE. 52123123Simp * 53123123Simp * The licence and distribution terms for any publically available version or 54123123Simp * derivative of this code cannot be changed. i.e. this code cannot simply be 55123123Simp * copied and put under another distribution licence 56123123Simp * [including the GNU Public Licence.] 57123123Simp */ 58123123Simp 59123123Simp#include <stdio.h> 60123123Simp#include "cryptlib.h" 61123123Simp#include <openssl/bn.h> 62123123Simp#include <openssl/evp.h> 63123123Simp#include <openssl/objects.h> 64123123Simp#include <openssl/asn1.h> 65123123Simp#ifndef OPENSSL_NO_RSA 66123123Simp#include <openssl/rsa.h> 67123123Simp#endif 68123123Simp#ifndef OPENSSL_NO_DSA 69123123Simp#include <openssl/dsa.h> 70123123Simp#endif 71123123Simp#ifndef OPENSSL_NO_EC 72123123Simp#include <openssl/ec.h> 73123123Simp#endif 74123123Simp 75123123SimpEVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp, 76123123Simp long length) 77123123Simp { 78123123Simp EVP_PKEY *ret; 79123123Simp 80123123Simp if ((a == NULL) || (*a == NULL)) 81123123Simp { 82123123Simp if ((ret=EVP_PKEY_new()) == NULL) 83123123Simp { 84123123Simp ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_EVP_LIB); 85123123Simp return(NULL); 86123123Simp } 87123123Simp } 88123123Simp else ret= *a; 89123123Simp 90123123Simp if (!EVP_PKEY_set_type(ret, type)) 91123123Simp { 92123123Simp ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_EVP_LIB); 93123123Simp goto err; 94123123Simp } 95123123Simp 96123123Simp switch (EVP_PKEY_id(ret)) 97123123Simp { 98123123Simp#ifndef OPENSSL_NO_RSA 99123123Simp case EVP_PKEY_RSA: 100123123Simp if ((ret->pkey.rsa=d2i_RSAPublicKey(NULL, 101123123Simp (const unsigned char **)pp,length)) == NULL) /* TMP UGLY CAST */ 102123123Simp { 103123123Simp ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_ASN1_LIB); 104123123Simp goto err; 105123123Simp } 106155064Srik break; 107155064Srik#endif 108155064Srik#ifndef OPENSSL_NO_DSA 109155064Srik case EVP_PKEY_DSA: 110123123Simp if (!d2i_DSAPublicKey(&(ret->pkey.dsa), 111123123Simp (const unsigned char **)pp,length)) /* TMP UGLY CAST */ 112123123Simp { 113123123Simp ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_ASN1_LIB); 114155064Srik goto err; 115123123Simp } 116123123Simp break; 117123123Simp#endif 118123123Simp#ifndef OPENSSL_NO_EC 119123123Simp case EVP_PKEY_EC: 120123123Simp if (!o2i_ECPublicKey(&(ret->pkey.ec), 121123123Simp (const unsigned char **)pp, length)) 122123123Simp { 123123123Simp ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB); 124123123Simp goto err; 125123123Simp } 126123123Simp break; 127123123Simp#endif 128123123Simp default: 129123123Simp ASN1err(ASN1_F_D2I_PUBLICKEY,ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); 130123123Simp goto err; 131123123Simp /* break; */ 132123123Simp } 133123123Simp if (a != NULL) (*a)=ret; 134123123Simp return(ret); 135123123Simperr: 136123123Simp if ((ret != NULL) && ((a == NULL) || (*a != ret))) EVP_PKEY_free(ret); 137123123Simp return(NULL); 138123123Simp } 139123123Simp 140123123Simp