132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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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 are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <getopt.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/conf.h>
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#include <openssl/evp.h>
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#include <openssl/pem.h>
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#include "cert.h"
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#include "debug.h"
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#include "key.h"
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#include "platform_oid.h"
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#include "sha.h"
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#define MAX_FILENAME_LEN 1024
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/*
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* Create a new key
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*/
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int key_new(key_t *key)
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{
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RSA *rsa = NULL;
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EVP_PKEY *k = NULL;
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/* Create key pair container */
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k = EVP_PKEY_new();
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if (k == NULL) {
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return 0;
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}
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/* Generate a new RSA key */
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rsa = RSA_generate_key(RSA_KEY_BITS, RSA_F4, NULL, NULL);
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if (EVP_PKEY_assign_RSA(k, rsa)) {
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key->key = k;
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return 1;
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} else {
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printf("Cannot assign RSA key\n");
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}
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if (k)
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EVP_PKEY_free(k);
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return 0;
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}
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int key_load(key_t *key)
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{
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FILE *fp = NULL;
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EVP_PKEY *k = NULL;
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/* Create key pair container */
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k = EVP_PKEY_new();
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if (k == NULL) {
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return 0;
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}
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if (key->fn) {
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/* Load key from file */
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fp = fopen(key->fn, "r");
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if (fp) {
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k = PEM_read_PrivateKey(fp, &k, NULL, NULL);
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fclose(fp);
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if (k) {
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key->key = k;
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return 1;
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} else {
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ERROR("Cannot read key from %s\n", key->fn);
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}
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} else {
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ERROR("Cannot open file %s\n", key->fn);
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}
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} else {
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ERROR("Key filename not specified\n");
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}
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if (k)
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EVP_PKEY_free(k);
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return 0;
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}
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int key_store(key_t *key)
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{
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FILE *fp = NULL;
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if (key->fn) {
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fp = fopen(key->fn, "w");
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if (fp) {
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PEM_write_PrivateKey(fp, key->key,
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NULL, NULL, 0, NULL, NULL);
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fclose(fp);
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return 1;
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} else {
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ERROR("Cannot create file %s\n", key->fn);
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}
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} else {
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ERROR("Key filename not specified\n");
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}
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return 0;
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}
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