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/*
* Copyright (c) 2013 William Pitcock <nenolod@dereferenced.org>.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#include "atheme.h"
#include "libathemecore.h"
#if defined HAVE_OPENSSL && defined HAVE_OPENSSL_EC_H
#include <openssl/ec.h>
#include <openssl/ecdsa.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
int main(int argc, const char **argv)
{
EC_KEY *pub;
char workbuf[BUFSIZE];
const unsigned char *workbuf_p;
size_t len, i;
if (argv[1] == NULL)
{
fprintf(stderr, "usage: %s [base64key]\n", argv[0]);
return EXIT_FAILURE;
}
memset(workbuf, '\0', sizeof workbuf);
pub = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
EC_KEY_set_conv_form(pub, POINT_CONVERSION_COMPRESSED);
len = base64_decode(argv[1], workbuf, BUFSIZE);
workbuf_p = (unsigned char *) workbuf;
o2i_ECPublicKey(&pub, &workbuf_p, len);
if (!EC_KEY_check_key(pub))
{
fprintf(stderr, "Key data provided on commandline is inconsistent.\n");
return EXIT_FAILURE;
}
printf("Public key (reassembled):\n");
EC_KEY_print_fp(stdout, pub, 4);
return EXIT_SUCCESS;
}
#else
int main(int argc, const char **argv)
{
printf("I'm sorry, you didn't compile Atheme with OpenSSL support.\n");
return EXIT_SUCCESS;
}
#endif
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