mirror of
https://github.com/guanzhi/GmSSL.git
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109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/*
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* Copyright 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 <string.h>
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#include <stdlib.h>
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#include <gmssl/sm9.h>
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#include <gmssl/error.h>
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static const char *options = "-pubmaster file -id str [-in file] [-out file]";
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int sm9encrypt_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 *mpkfile = NULL;
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char *id = NULL;
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char *infile = NULL;
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char *outfile = NULL;
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FILE *mpkfp = NULL;
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FILE *infp = stdin;
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FILE *outfp = stdout;
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SM9_ENC_MASTER_KEY mpk;
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uint8_t inbuf[SM9_MAX_PLAINTEXT_SIZE];
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uint8_t outbuf[SM9_MAX_CIPHERTEXT_SIZE];
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size_t inlen, outlen = sizeof(outbuf);
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argc--;
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argv++;
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if (argc < 1) {
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fprintf(stderr, "usage: %s %s\n", prog, options);
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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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fprintf(stdout, "usage: %s %s\n", prog, options);
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return 0;
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} else if (!strcmp(*argv, "-pubmaster")) {
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if (--argc < 1) goto bad;
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mpkfile = *(++argv);
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if (!(mpkfp = fopen(mpkfile, "r"))) {
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error_print();
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goto end;
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}
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} else if (!strcmp(*argv, "-id")) {
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if (--argc < 1) goto bad;
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id = *(++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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if (!(infp = fopen(outfile, "r"))) {
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error_print();
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goto end;
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}
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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, "w"))) {
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error_print();
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goto end;
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}
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} else {
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bad:
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fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
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return 1;
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}
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argc--;
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argv++;
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}
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if (!mpkfp || !id) {
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error_print();
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goto end;
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}
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if (sm9_enc_master_public_key_from_pem(&mpk, mpkfp) != 1) {
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error_print();
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return -1;
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}
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if ((inlen = fread(inbuf, 1, sizeof(inbuf), infp)) <= 0) {
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error_print();
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goto end;
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}
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if (sm9_encrypt(&mpk, id, strlen(id), inbuf, inlen, outbuf, &outlen) != 1) {
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error_print();
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goto end;
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}
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if (outlen != fwrite(outbuf, 1, outlen, outfp)) {
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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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if (infile && infp) fclose(infp);
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if (outfile && outfp) fclose(outfp);
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if (mpkfp) fclose(mpkfp);
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return ret;
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}
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