Files
GmSSL/tools/sm2sign.c
Zhi Guan bcad2eb8dd update
2021-09-10 11:29:16 +08:00

150 lines
3.2 KiB
C

<<<<<<< HEAD
/*
* Copyright (c) 2021 - 2021 The GmSSL Project. All rights reserved.
=======
/*
* Copyright 2014-2021 The GmSSL Project Authors. All Rights Reserved.
>>>>>>> 5fc13a8aefa3fb395f32927e35dda4210a3c1a23
*
* 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <gmssl/sm2.h>
#include <gmssl/pem.h>
#include <gmssl/pkcs8.h>
#include <gmssl/error.h>
#ifndef WIN32
#include <pwd.h>
#include <unistd.h>
#endif
// echo data | sm2sign -id "Alice" -keyfile sm2.pem
// echo data | sm2verify -id "Alice" -keyfile sm2pub.pem -certfile a -cacertfile b
int main(int argc, char **argv)
{
char *prog = argv[0];
char *keyfile = NULL;
char *pass = NULL;
char *id = SM2_DEFAULT_ID;
char *infile = NULL;
char *outfile = NULL;
FILE *keyfp = NULL;
FILE *infp = stdin;
FILE *outfp = stdout;
SM2_KEY key;
SM2_SIGN_CTX sign_ctx;
uint8_t buf[4096];
ssize_t len;
uint8_t sig[SM2_MAX_SIGNATURE_SIZE];
size_t siglen;
argc--;
argv++;
while (argc > 0) {
if (!strcmp(*argv, "-help")) {
help:
fprintf(stderr, "usage: %s -key pem [-pass password] [-id str] [-in file] [-out file]\n", prog);
return -1;
} else if (!strcmp(*argv, "-key")) {
if (--argc < 1) goto bad;
keyfile = *(++argv);
} else if (!strcmp(*argv, "-pass")) {
if (--argc < 1) goto bad;
pass = *(++argv);
} else if (!strcmp(*argv, "-id")) {
if (--argc < 1) goto bad;
id = *(++argv);
} else if (!strcmp(*argv, "-in")) {
if (--argc < 1) goto bad;
infile = *(++argv);
} else if (!strcmp(*argv, "-out")) {
if (--argc < 1) goto bad;
outfile = *(++argv);
} else {
fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
goto help;
}
argc--;
argv++;
}
if (!keyfile) {
error_print();
goto help;
}
if (!(keyfp = fopen(keyfile, "r"))) {
error_print();
return -1;
}
if (!pass) {
#ifndef WIN32
pass = getpass("Encryption Password : ");
#else
fprintf(stderr, "%s: '-pass' option required\n", prog);
#endif
}
if (infile) {
if (!(infp = fopen(infile, "rb"))) {
error_print();
return -1;
}
}
if (outfile) {
if (!(outfp = fopen(outfile, "wb"))) {
error_print();
return -1;
}
}
if (sm2_enced_private_key_info_from_pem(&key, pass, keyfp) != 1) {
error_puts("private key decryption failure");
return -1;
}
sm2_sign_init(&sign_ctx, &key, id);
while ((len = fread(buf, 1, sizeof(buf), infp)) > 0) {
sm2_sign_update(&sign_ctx, buf, len);
}
sm2_sign_finish(&sign_ctx, sig, &siglen);
fwrite(sig, 1, siglen, outfp);
memset(&key, 0, sizeof(SM2_KEY));
return 0;
bad:
fprintf(stderr, "%s: '%s' option value required\n", prog, *argv);
return -1;
}