mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-07 00:46:17 +08:00
Remove warnings
This commit is contained in:
Zhi Guan
165
tools/sm3_pbkdf2.c
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165
tools/sm3_pbkdf2.c
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@@ -0,0 +1,165 @@
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/*
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* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gmssl/mem.h>
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#include <gmssl/hex.h>
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#include <gmssl/sm3.h>
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static const char *usage = "-pass str -salt hex -iter num -outlen num [-bin|-hex] [-out file]";
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static const char *options =
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"\n"
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"Options\n"
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"\n"
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" -pass str Password to be converted into key\n"
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" -salt hex Salt value, 8 to 64 bytes\n"
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" -iter num Iteration count, larger iter make it more secure but slower\n"
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" -outlen num Generate key bytes\n"
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" -bin Output binary key\n"
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" -hex Output key in hex digits\n"
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" -out file | stdout Output data\n"
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"\n"
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"Examples\n"
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"\n"
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" $ SALT=`gmssl rand -outlen 8 -hex`\n"
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" $ gmssl sm3_pbkdf2 -pass P@ssw0rd -salt $SALT -iter 10000 -outlen 16 -hex\n"
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"\n";
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int sm3_pbkdf2_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 *pass = NULL;
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char *salthex = NULL;
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uint8_t salt[SM3_PBKDF2_MAX_SALT_SIZE];
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size_t saltlen;
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int iter = 0;
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int outlen = 0;
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int bin = 0;
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char *outfile = NULL;
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uint8_t outbuf[64];
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FILE *outfp = stdout;
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int i;
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argc--;
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argv++;
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if (argc < 1) {
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fprintf(stderr, "usage: gmssl %s %s\n", prog, usage);
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return 1;
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}
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while (argc > 0) {
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if (!strcmp(*argv, "-help")) {
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printf("usage: gmssl %s %s\n", prog, options);
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ret = 0;
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goto end;
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} else if (!strcmp(*argv, "-pass")) {
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if (--argc < 1) goto bad;
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pass = *(++argv);
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} else if (!strcmp(*argv, "-salt")) {
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if (--argc < 1) goto bad;
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salthex = *(++argv);
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if (strlen(salthex) > sizeof(salt) * 2) {
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fprintf(stderr, "gmssl %s: invalid salt length\n", prog);
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goto end;
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}
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if (hex_to_bytes(salthex, strlen(salthex), salt, &saltlen) != 1) {
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fprintf(stderr, "gmssl %s: invalid HEX digits\n", prog);
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goto end;
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}
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if (saltlen < 1 || saltlen > SM3_PBKDF2_MAX_SALT_SIZE) {
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fprintf(stderr, "gmssl %s: invalid salt length\n", prog);
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goto end;
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}
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} else if (!strcmp(*argv, "-iter")) {
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if (--argc < 1) goto bad;
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iter = atoi(*(++argv));
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if (iter < SM3_PBKDF2_MIN_ITER || iter > SM3_PBKDF2_MAX_ITER) {
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fprintf(stderr, "gmssl %s: invalid '-iter' value\n", prog);
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goto end;
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}
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} else if (!strcmp(*argv, "-outlen")) {
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if (--argc < 1) goto bad;
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outlen = atoi(*(++argv));
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if (outlen < 1 || outlen > sizeof(outbuf)) {
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fprintf(stderr, "gmssl %s: invalid outlen\n", prog);
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goto end;
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}
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} else if (!strcmp(*argv, "-hex")) {
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bin = 0;
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} else if (!strcmp(*argv, "-bin")) {
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bin = 1;
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} else if (!strcmp(*argv, "-out")) {
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if (--argc < 1) goto bad;
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outfile = *(++argv);
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if (!(outfp = fopen(outfile, "wb"))) {
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fprintf(stderr, "gmssl %s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
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goto end;
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}
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} else {
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fprintf(stderr, "gmssl %s: illegal option '%s'\n", prog, *argv);
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goto end;
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bad:
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fprintf(stderr, "gmssl %s: '%s' option value missing\n", prog, *argv);
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goto end;
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}
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argc--;
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argv++;
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}
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if (!pass) {
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fprintf(stderr, "gmssl %s: option '-pass' required\n", prog);
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goto end;
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}
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if (!salthex) {
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fprintf(stderr, "gmssl %s: option '-salt' required\n", prog);
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goto end;
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}
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if (!iter) {
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fprintf(stderr, "gmssl %s: option '-iter' required\n", prog);
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goto end;
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}
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if (!outlen) {
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fprintf(stderr, "gmssl %s: option '-outlen' required\n", prog);
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goto end;
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}
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if (sm3_pbkdf2(pass, strlen(pass), salt, saltlen, iter, outlen, outbuf) != 1) {
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fprintf(stderr, "gmssl %s: inner error\n", prog);
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goto end;
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}
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if (bin) {
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if (fwrite(outbuf, 1, outlen, outfp) != outlen) {
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fprintf(stderr, "gmssl %s: output failure : %s\n", prog, strerror(errno));
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goto end;
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}
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} else {
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for (i = 0; i < outlen; i++) {
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fprintf(outfp, "%02x", outbuf[i]);
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}
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fprintf(outfp, "\n");
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}
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ret = 0;
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end:
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gmssl_secure_clear(outbuf, sizeof(outbuf));
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gmssl_secure_clear(salt, sizeof(salt));
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if (outfile && outfp) fclose(outfp);
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return ret;
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}
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