mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-06 16:36:16 +08:00
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
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* Copyright 2014-2025 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 <string.h>
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#include <stdlib.h>
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#include <gmssl/mem.h>
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#include <gmssl/error.h>
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#include <gmssl/kyber.h>
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static const char *usage = "-out file [-pubout file] [-verbose]\n";
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static const char *options =
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"Options\n"
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" -out file Output private key\n"
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" -pubout file Output public key\n"
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" -verbose Print public key\n"
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"\n";
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int kyberkeygen_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 *outfile = NULL;
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char *puboutfile = NULL;
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int verbose = 0;
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FILE *outfp = NULL;
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FILE *puboutfp = stdout;
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KYBER_KEY key;
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uint8_t out[KYBER_PRIVATE_KEY_SIZE];
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uint8_t pubout[KYBER_PUBLIC_KEY_SIZE];
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uint8_t *pout = out;
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uint8_t *ppubout = pubout;
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size_t outlen = 0, puboutlen = 0;
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memset(&key, 0, sizeof(key));
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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, usage);
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printf("%s\n", options);
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ret = 0;
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goto end;
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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, "%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 if (!strcmp(*argv, "-pubout")) {
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if (--argc < 1) goto bad;
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puboutfile = *(++argv);
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if (!(puboutfp = fopen(puboutfile, "wb"))) {
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fprintf(stderr, "%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 if (!strcmp(*argv, "-verbose")) {
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verbose = 1;
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} else {
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fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
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goto end;
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bad:
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fprintf(stderr, "%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 (!outfp) {
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fprintf(stderr, "%s: `-out` option required\n", prog);
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goto end;
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}
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if (kyber_key_generate_ex(&key, NULL) != 1) {
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error_print();
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return -1;
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}
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if (verbose) {
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kyber_public_key_print(stderr, 0, 0, "kyber_public_key", &key);
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kyber_private_key_print(stderr, 0, 0, "kyber_private_key", &key);
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}
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if (kyber_private_key_to_bytes(&key, &pout, &outlen) != 1) {
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error_print();
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goto end;
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}
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if (fwrite(out, 1, outlen, outfp) != outlen) {
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error_print();
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goto end;
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}
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if (kyber_public_key_to_bytes(&key, &ppubout, &puboutlen) != 1) {
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error_print();
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goto end;
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}
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if (fwrite(pubout, 1, puboutlen, puboutfp) != puboutlen) {
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error_print();
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goto end;
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}
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ret = 0;
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end:
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kyber_key_cleanup(&key);
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gmssl_secure_clear(out, outlen);
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if (outfile && outfp) fclose(outfp);
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if (puboutfile && puboutfp) fclose(puboutfp);
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return ret;
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}
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