d2i_pu.c revision 55714
155714Skris/* crypto/asn1/d2i_pu.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include "cryptlib.h" 6155714Skris#include <openssl/bn.h> 6255714Skris#include <openssl/evp.h> 6355714Skris#include <openssl/objects.h> 6455714Skris#include <openssl/asn1.h> 6555714Skris 6655714SkrisEVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, unsigned char **pp, 6755714Skris long length) 6855714Skris { 6955714Skris EVP_PKEY *ret; 7055714Skris 7155714Skris if ((a == NULL) || (*a == NULL)) 7255714Skris { 7355714Skris if ((ret=EVP_PKEY_new()) == NULL) 7455714Skris { 7555714Skris ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_EVP_LIB); 7655714Skris return(NULL); 7755714Skris } 7855714Skris } 7955714Skris else ret= *a; 8055714Skris 8155714Skris ret->save_type=type; 8255714Skris ret->type=EVP_PKEY_type(type); 8355714Skris switch (ret->type) 8455714Skris { 8555714Skris#ifndef NO_RSA 8655714Skris case EVP_PKEY_RSA: 8755714Skris if ((ret->pkey.rsa=d2i_RSAPublicKey(NULL,pp,length)) == NULL) 8855714Skris { 8955714Skris ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_ASN1_LIB); 9055714Skris goto err; 9155714Skris } 9255714Skris break; 9355714Skris#endif 9455714Skris#ifndef NO_DSA 9555714Skris case EVP_PKEY_DSA: 9655714Skris if ((ret->pkey.dsa=d2i_DSAPublicKey(NULL,pp,length)) == NULL) 9755714Skris { 9855714Skris ASN1err(ASN1_F_D2I_PUBLICKEY,ERR_R_ASN1_LIB); 9955714Skris goto err; 10055714Skris } 10155714Skris break; 10255714Skris#endif 10355714Skris default: 10455714Skris ASN1err(ASN1_F_D2I_PUBLICKEY,ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); 10555714Skris goto err; 10655714Skris /* break; */ 10755714Skris } 10855714Skris if (a != NULL) (*a)=ret; 10955714Skris return(ret); 11055714Skriserr: 11155714Skris if ((ret != NULL) && ((a == NULL) || (*a != ret))) EVP_PKEY_free(ret); 11255714Skris return(NULL); 11355714Skris } 11455714Skris 115