mirror of
https://github.com/guanzhi/GmSSL.git
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96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
/*
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* Copyright 2014-2021 The GmSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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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 <gmssl/sm3.h>
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#include <gmssl/hex.h>
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#include <gmssl/error.h>
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int main(int argc, char **argv)
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{
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int ret = -1;
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char *prog = argv[0];
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char *keyhex = NULL;
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char *infile = NULL;
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uint8_t key[32];
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size_t keylen;
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FILE *in = stdin;
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SM3_HMAC_CTX ctx;
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unsigned char dgst[32];
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unsigned char buf[4096];
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size_t len;
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argc--;
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argv++;
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while (argc > 0) {
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if (!strcmp(*argv, "-help")) {
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help:
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fprintf(stderr, "usage: %s -keyhex hex [-in file]\n", prog);
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return -1;
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} else if (!strcmp(*argv, "-keyhex")) {
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if (--argc < 1) goto bad;
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keyhex = *(++argv);
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} else if (!strcmp(*argv, "-in")) {
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if (--argc < 1) goto bad;
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infile = *(++argv);
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} else {
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fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
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goto help;
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}
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argc--;
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argv++;
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}
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if (!keyhex) {
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fprintf(stderr, "%s: option '-keyhex' required\n", prog);
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goto help;
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}
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if (strlen(keyhex) > sizeof(key) * 2) {
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error_print();
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return -1;
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}
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if (hex_to_bytes(keyhex, strlen(keyhex), key, &keylen) != 1) {
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error_print();
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return -1;
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}
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sm3_hmac_init(&ctx, key, keylen);
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while ((len = fread(buf, 1, sizeof(buf), stdin)) > 0) {
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sm3_hmac_update(&ctx, buf, len);
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}
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sm3_hmac_finish(&ctx, dgst);
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format_bytes(stdout, 0, 0, "", dgst, sizeof(dgst));
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memset(&ctx, 0, sizeof(ctx));
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memset(key, 0, sizeof(key));
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return 0;
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bad:
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fprintf(stderr, "%s: '%s' option value required\n", prog, *argv);
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return -1;
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}
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