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/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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
*/
#include <stdio.h>
#include "internal/cryptlib.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;
int ret = 0, i;
if (x == NULL)
return (0);
if (pkey == NULL)
pk = X509_get0_pubkey(x);
else
pk = pkey;
if (pk == NULL)
return (0);
switch (EVP_PKEY_id(pk)) {
case EVP_PKEY_RSA:
ret = EVP_PK_RSA | EVP_PKT_SIGN;
/* if (!sign only extension) */
ret |= 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_2001:
case NID_id_GostR3410_2012_256:
case NID_id_GostR3410_2012_512:
ret = EVP_PKT_EXCH | EVP_PKT_SIGN;
break;
default:
break;
}
i = X509_get_signature_nid(x);
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;
}
}
return (ret);
}
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