mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-07 00:46:17 +08:00
111 lines
3.8 KiB
C
111 lines
3.8 KiB
C
/* ====================================================================
|
|
* Copyright (c) 2014 - 2018 The GmSSL Project. All rights reserved.
|
|
*
|
|
* 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 above 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 acknowledgment:
|
|
* "This product includes software developed by the GmSSL Project.
|
|
* (http://gmssl.org/)"
|
|
*
|
|
* 4. The name "GmSSL Project" must not be used to endorse or promote
|
|
* products derived from this software without prior written
|
|
* permission. For written permission, please contact
|
|
* guanzhi1980@gmail.com.
|
|
*
|
|
* 5. Products derived from this software may not be called "GmSSL"
|
|
* nor may "GmSSL" appear in their names without prior written
|
|
* permission of the GmSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the GmSSL Project
|
|
* (http://gmssl.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED 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 GmSSL PROJECT OR
|
|
* ITS 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.
|
|
* ====================================================================
|
|
*/
|
|
/*
|
|
* Alert:
|
|
* This is a only a demo of the FFX format-preserving encryption algorithm,
|
|
* the encryption key should not be read from command line argumnents, and
|
|
* the key and tweak should be binary (full 8-bit per char).
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <libgen.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/evp.h>
|
|
#include <openssl/ffx.h>
|
|
#include <openssl/is_gmssl.h>
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ret = -1;
|
|
char *prog = basename(argv[0]);
|
|
FFX_CTX *ctx = NULL;
|
|
unsigned char key[32] = {0};
|
|
char out[FFX_MAX_DIGITS + 1] = {0};
|
|
|
|
if (argc != 4) {
|
|
printf("usage: %s <digits> <key> <tweak>\n", prog);
|
|
return -1;
|
|
}
|
|
if (strlen(argv[1]) < FFX_MIN_DIGITS || strlen(argv[1]) > FFX_MAX_DIGITS) {
|
|
fprintf(stderr, "%s: invalid digits length, should be %d to %d\n",
|
|
prog, FFX_MIN_DIGITS, FFX_MAX_DIGITS);
|
|
return -1;
|
|
}
|
|
if (strlen(argv[2]) < FFX_MIN_TWEAKLEN || strlen(argv[2]) > FFX_MAX_TWEAKLEN) {
|
|
fprintf(stderr, "%s: invalid tweak length, should be %d to %d\n",
|
|
prog, FFX_MIN_TWEAKLEN, FFX_MAX_TWEAKLEN);
|
|
return -1;
|
|
}
|
|
strncpy((char *)key, argv[2], sizeof(key));
|
|
|
|
if (!(ctx = FFX_CTX_new())) {
|
|
ERR_print_errors_fp(stderr);
|
|
goto end;
|
|
}
|
|
|
|
if (!FFX_init(ctx, EVP_sms4_ecb(), key, 0)) {
|
|
ERR_print_errors_fp(stderr);
|
|
goto end;
|
|
}
|
|
if (!FFX_decrypt(ctx, argv[1], out, strlen(argv[1]),
|
|
(unsigned char *)argv[3], strlen(argv[3]))) {
|
|
ERR_print_errors_fp(stderr);
|
|
goto end;
|
|
}
|
|
printf("%s\n", out);
|
|
|
|
ret = 0;
|
|
|
|
end:
|
|
FFX_CTX_free(ctx);
|
|
return ret;
|
|
}
|