1 /*
2 * Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the License); you may
5 * not use this file except in compliance with the License.
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 */
9
10
11 #include <stdio.h>
12 #include <string.h>
13 #include <stdlib.h>
14 #include <gmssl/sm9.h>
15 #include <gmssl/error.h>
16
17
18 static const char *options = "[-in file] -pubmaster file -id str -sig file";
19
sm9verify_main(int argc,char ** argv)20 int sm9verify_main(int argc, char **argv)
21 {
22 int ret = 1;
23 char *prog = argv[0];
24 char *infile = NULL;
25 char *mpkfile = NULL;
26 char *id = NULL;
27 char *sigfile = NULL;
28 FILE *infp = stdin;
29 FILE *mpkfp = NULL;
30 FILE *sigfp = NULL;
31 SM9_SIGN_MASTER_KEY mpk;
32 SM9_SIGN_CTX ctx;
33 uint8_t buf[4096];
34 ssize_t len;
35 uint8_t sig[SM9_SIGNATURE_SIZE];
36 ssize_t siglen;
37
38 argc--;
39 argv++;
40
41 if (argc < 1) {
42 fprintf(stderr, "usage: %s %s\n", prog, options);
43 return 1;
44 }
45
46 while (argc > 0) {
47 if (!strcmp(*argv, "-help")) {
48 fprintf(stdout, "usage: %s %s\n", prog, options);
49 return 0;
50 } else if (!strcmp(*argv, "-in")) {
51 if (--argc < 1) goto bad;
52 infile = *(++argv);
53 if (!(infp = fopen(infile, "r"))) {
54 error_print();
55 goto end;
56 }
57 } else if (!strcmp(*argv, "-pubmaster")) {
58 if (--argc < 1) goto bad;
59 mpkfile = *(++argv);
60 if (!(mpkfp = fopen(mpkfile, "r"))) {
61 error_print();
62 goto end;
63 }
64 } else if (!strcmp(*argv, "-id")) {
65 if (--argc < 1) goto bad;
66 id = *(++argv);
67 } else if (!strcmp(*argv, "-sig")) {
68 if (--argc < 1) goto bad;
69 sigfile = *(++argv);
70 if (!(sigfp = fopen(sigfile, "r"))) {
71 error_print();
72 goto end;
73 }
74 } else {
75 bad:
76 fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
77 return 1;
78 }
79
80 argc--;
81 argv++;
82 }
83
84 if (!mpkfile || !id || !sigfile) {
85 error_print();
86 goto end;
87 }
88
89 if (sm9_sign_master_public_key_from_pem(&mpk, mpkfp) != 1) {
90 error_print();
91 goto end;
92 }
93
94 if ((siglen = fread(sig, 1, sizeof(sig), sigfp)) <= 0) {
95 error_print();
96 goto end;
97 }
98
99 if (sm9_verify_init(&ctx) != 1) {
100 error_print();
101 goto end;
102 }
103 while ((len = fread(buf, 1, sizeof(buf), infp)) > 0) {
104 if (sm9_verify_update(&ctx, buf, len) != 1) {
105 error_print();
106 goto end;
107 }
108 }
109 if ((ret = sm9_verify_finish(&ctx, sig, siglen, &mpk, id, strlen(id))) != 1) {
110 error_print();
111 goto end;
112 }
113 printf("%s %s\n", prog, ret ? "success" : "failure");
114
115 end:
116 if (infile && infp) fclose(infp);
117 if (mpkfile && mpkfp) fclose(mpkfp);
118 if (sigfile && sigfp) fclose(sigfp);
119 return ret;
120 }
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