Viewing file:  d2i_pu.c (2.54 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* DSA low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/bn.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/asn1.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/ec.h>
#include "crypto/evp.h"
EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
long length)
{
EVP_PKEY *ret;
EVP_PKEY *copy = NULL;
if ((a == NULL) || (*a == NULL)) {
if ((ret = EVP_PKEY_new()) == NULL) {
ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
return NULL;
}
} else {
ret = *a;
#ifndef OPENSSL_NO_EC
if (evp_pkey_is_provided(ret)
&& EVP_PKEY_get_base_id(ret) == EVP_PKEY_EC) {
if (!evp_pkey_copy_downgraded(©, ret))
goto err;
}
#endif
}
if ((type != EVP_PKEY_get_id(ret) || copy != NULL)
&& !EVP_PKEY_set_type(ret, type)) {
ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
goto err;
}
switch (EVP_PKEY_get_base_id(ret)) {
case EVP_PKEY_RSA:
if ((ret->pkey.rsa = d2i_RSAPublicKey(NULL, pp, length)) == NULL) {
ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB);
goto err;
}
break;
#ifndef OPENSSL_NO_DSA
case EVP_PKEY_DSA:
if (!d2i_DSAPublicKey(&ret->pkey.dsa, pp, length)) {
ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB);
goto err;
}
break;
#endif
#ifndef OPENSSL_NO_EC
case EVP_PKEY_EC:
if (copy != NULL) {
/* use downgraded parameters from copy */
ret->pkey.ec = copy->pkey.ec;
copy->pkey.ec = NULL;
}
if (!o2i_ECPublicKey(&ret->pkey.ec, pp, length)) {
ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB);
goto err;
}
break;
#endif
default:
ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE);
goto err;
}
if (a != NULL)
(*a) = ret;
EVP_PKEY_free(copy);
return ret;
err:
if (a == NULL || *a != ret)
EVP_PKEY_free(ret);
EVP_PKEY_free(copy);
return NULL;
}
|