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/* $OpenBSD: x509type.c,v 1.13 2018/05/30 15:59:33 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
int
X509_certificate_type(const X509 *x, const EVP_PKEY *pkey)
{
const EVP_PKEY *pk = pkey;
int ret = 0, i;
if (x == NULL)
return (0);
if (pk == NULL) {
if ((pk = X509_get0_pubkey(x)) == NULL)
return (0);
}
switch (pk->type) {
case EVP_PKEY_RSA:
ret = EVP_PK_RSA|EVP_PKT_SIGN|EVP_PKT_ENC;
break;
case EVP_PKEY_DSA:
ret = EVP_PK_DSA|EVP_PKT_SIGN;
break;
case EVP_PKEY_EC:
ret = EVP_PK_EC|EVP_PKT_SIGN|EVP_PKT_EXCH;
break;
case EVP_PKEY_DH:
ret = EVP_PK_DH|EVP_PKT_EXCH;
break;
case NID_id_GostR3410_94:
case NID_id_GostR3410_2001:
ret = EVP_PKT_EXCH|EVP_PKT_SIGN;
break;
default:
break;
}
i = OBJ_obj2nid(x->sig_alg->algorithm);
if (i && OBJ_find_sigid_algs(i, NULL, &i)) {
switch (i) {
case NID_rsaEncryption:
case NID_rsa:
ret |= EVP_PKS_RSA;
break;
case NID_dsa:
case NID_dsa_2:
ret |= EVP_PKS_DSA;
break;
case NID_X9_62_id_ecPublicKey:
ret |= EVP_PKS_EC;
break;
default:
break;
}
}
/* /8 because it's 1024 bits we look for, not bytes */
if (EVP_PKEY_size(pk) <= 1024 / 8)
ret |= EVP_PKT_EXP;
return (ret);
}
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