137 lines
5.1 KiB
C
137 lines
5.1 KiB
C
/* crypto/asn1/d2i_pu.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/bn.h>
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#include <openssl/evp.h>
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#include <openssl/objects.h>
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#include <openssl/asn1.h>
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#ifndef OPENSSL_NO_RSA
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# include <openssl/rsa.h>
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#endif
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#ifndef OPENSSL_NO_DSA
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# include <openssl/dsa.h>
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#endif
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#ifndef OPENSSL_NO_EC
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# include <openssl/ec.h>
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#endif
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EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
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long length)
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{
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EVP_PKEY *ret;
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if ((a == NULL) || (*a == NULL)) {
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if ((ret = EVP_PKEY_new()) == NULL) {
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ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_EVP_LIB);
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return (NULL);
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}
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} else
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ret = *a;
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if (!EVP_PKEY_set_type(ret, type)) {
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ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_EVP_LIB);
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goto err;
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}
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switch (EVP_PKEY_id(ret)) {
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#ifndef OPENSSL_NO_RSA
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case EVP_PKEY_RSA:
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/* TMP UGLY CAST */
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if ((ret->pkey.rsa = d2i_RSAPublicKey(NULL,
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(const unsigned char **)pp,
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length)) == NULL) {
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ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB);
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goto err;
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}
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break;
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#endif
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#ifndef OPENSSL_NO_DSA
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case EVP_PKEY_DSA:
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/* TMP UGLY CAST */
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if (!d2i_DSAPublicKey(&(ret->pkey.dsa),
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(const unsigned char **)pp, length)) {
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ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB);
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goto err;
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}
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break;
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#endif
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#ifndef OPENSSL_NO_EC
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case EVP_PKEY_EC:
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if (!o2i_ECPublicKey(&(ret->pkey.ec),
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(const unsigned char **)pp, length)) {
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ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB);
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goto err;
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}
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break;
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#endif
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default:
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ASN1err(ASN1_F_D2I_PUBLICKEY, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE);
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goto err;
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/* break; */
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}
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if (a != NULL)
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(*a) = ret;
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return (ret);
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err:
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if ((ret != NULL) && ((a == NULL) || (*a != ret)))
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EVP_PKEY_free(ret);
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return (NULL);
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}
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