OVMS3-idf/components/openssl/library/ssl_pkey.c
2016-09-22 10:28:08 +08:00

110 lines
2.5 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "ssl_lib.h"
#include "ssl_pkey.h"
#include "ssl_methods.h"
#include "ssl_dbg.h"
#include "ssl_port.h"
/*
* EVP_PKEY_new - create a private key object
*
* @param none
*
* @return private key object point or NULL if failed
*/
EVP_PKEY* EVP_PKEY_new(void)
{
int ret;
EVP_PKEY *pkey;
pkey = ssl_malloc(sizeof(EVP_PKEY));
if (!pkey)
SSL_RET(failed1, "ssl_malloc\n");
pkey->method = EVP_PKEY_method();
ret = EVP_PKEY_METHOD_CALL(new, pkey);
if (ret)
SSL_RET(failed2, "pkey_new\n");
return pkey;
failed2:
ssl_free(pkey);
failed1:
return NULL;
}
/*
* EVP_PKEY_free - free a private key object
*
* @param pkey - private key object point
*
* @return none
*/
void EVP_PKEY_free(EVP_PKEY *pkey)
{
EVP_PKEY_METHOD_CALL(free, pkey);
ssl_free(pkey);
}
/*
* d2i_PrivateKey - load a character key context into system context. If '*a' is pointed to the
* private key, then load key into it. Or create a new private key object
*
* @param type - private key type
* @param a - a point pointed to a private key point
* @param pp - a point pointed to the key context memory point
* @param length - key bytes
*
* @return private key object point or NULL if failed
*/
EVP_PKEY *d2i_PrivateKey(int type,
EVP_PKEY **a,
const unsigned char **pp,
long length)
{
int ret;
EVP_PKEY *pkey;
SSL_ASSERT(pp);
SSL_ASSERT(*pp);
SSL_ASSERT(length);
if (a && *a) {
pkey = *a;
} else {
pkey = EVP_PKEY_new();;
if (!pkey)
SSL_RET(failed1, "ssl_malloc\n");
}
ret = EVP_PKEY_METHOD_CALL(load, pkey, *pp, length);
if (ret)
SSL_RET(failed2, "pkey_pm_load_crt\n");
if (a)
*a = pkey;
return pkey;
failed2:
EVP_PKEY_free(pkey);
failed1:
return NULL;
}