2 * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
14 #include <openssl/bio.h>
15 #include <openssl/err.h>
16 #include <openssl/evp.h>
17 #include <openssl/params.h>
18 #include <openssl/core_names.h>
21 #define BUFSIZE 1024*8
23 typedef enum OPTION_choice {
25 OPT_MACOPT, OPT_BIN, OPT_IN, OPT_OUT,
26 OPT_CIPHER, OPT_DIGEST,
30 const OPTIONS mac_options[] = {
31 {OPT_HELP_STR, 1, '-', "Usage: %s [options] mac_name\n"},
33 OPT_SECTION("General"),
34 {"help", OPT_HELP, '-', "Display this summary"},
35 {"macopt", OPT_MACOPT, 's', "MAC algorithm parameters in n:v form"},
36 {"cipher", OPT_CIPHER, 's', "Cipher"},
37 {"digest", OPT_DIGEST, 's', "Digest"},
38 {OPT_MORE_STR, 1, '-', "See 'PARAMETER NAMES' in the EVP_MAC_ docs"},
41 {"in", OPT_IN, '<', "Input file to MAC (default is stdin)"},
43 OPT_SECTION("Output"),
44 {"out", OPT_OUT, '>', "Output to filename rather than stdout"},
45 {"binary", OPT_BIN, '-',
46 "Output in binary format (default is hexadecimal)"},
51 {"mac_name", 0, 0, "MAC algorithm"},
55 static char *alloc_mac_algorithm_name(STACK_OF(OPENSSL_STRING) **optp,
56 const char *name, const char *arg)
58 size_t len = strlen(name) + strlen(arg) + 2;
62 *optp = sk_OPENSSL_STRING_new_null();
66 res = app_malloc(len, "algorithm name");
67 BIO_snprintf(res, len, "%s:%s", name, arg);
68 if (sk_OPENSSL_STRING_push(*optp, res))
74 int mac_main(int argc, char **argv)
80 EVP_MAC_CTX *ctx = NULL;
81 STACK_OF(OPENSSL_STRING) *opts = NULL;
82 unsigned char *buf = NULL;
85 BIO *in = NULL, *out = NULL;
86 const char *outfile = NULL;
87 const char *infile = NULL;
89 int inform = FORMAT_BINARY;
90 char *digest = NULL, *cipher = NULL;
91 OSSL_PARAM *params = NULL;
93 prog = opt_init(argc, argv, mac_options);
94 buf = app_malloc(BUFSIZE, "I/O buffer");
95 while ((o = opt_next()) != OPT_EOF) {
99 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
102 opt_help(mac_options);
116 opts = sk_OPENSSL_STRING_new_null();
117 if (opts == NULL || !sk_OPENSSL_STRING_push(opts, opt_arg()))
121 OPENSSL_free(cipher);
122 cipher = alloc_mac_algorithm_name(&opts, "cipher", opt_arg());
127 OPENSSL_free(digest);
128 digest = alloc_mac_algorithm_name(&opts, "digest", opt_arg());
133 if (!opt_provider(o))
139 /* One argument, the MAC name. */
140 if (!opt_check_rest_arg("MAC name"))
144 mac = EVP_MAC_fetch(app_get0_libctx(), argv[0], app_get0_propq());
146 BIO_printf(bio_err, "Invalid MAC name %s\n", argv[0]);
150 ctx = EVP_MAC_CTX_new(mac);
157 params = app_params_new_from_opts(opts,
158 EVP_MAC_settable_ctx_params(mac));
162 if (!EVP_MAC_CTX_set_params(ctx, params)) {
163 BIO_printf(bio_err, "MAC parameter error\n");
164 ERR_print_errors(bio_err);
167 app_params_free(params);
172 in = bio_open_default(infile, 'r', inform);
176 out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
180 if (!EVP_MAC_init(ctx, NULL, 0, NULL)) {
181 BIO_printf(bio_err, "EVP_MAC_Init failed\n");
185 while (BIO_pending(in) || !BIO_eof(in)) {
186 i = BIO_read(in, (char *)buf, BUFSIZE);
188 BIO_printf(bio_err, "Read Error in '%s'\n", infile);
189 ERR_print_errors(bio_err);
194 if (!EVP_MAC_update(ctx, buf, i)) {
195 BIO_printf(bio_err, "EVP_MAC_update failed\n");
200 if (!EVP_MAC_final(ctx, NULL, &len, 0)) {
201 BIO_printf(bio_err, "EVP_MAC_final failed\n");
205 BIO_printf(bio_err, "output len is too large\n");
209 if (!EVP_MAC_final(ctx, buf, &len, BUFSIZE)) {
210 BIO_printf(bio_err, "EVP_MAC_final failed\n");
215 BIO_write(out, buf, len);
217 for (i = 0; i < (int)len; ++i)
218 BIO_printf(out, "%02X", buf[i]);
220 BIO_printf(out, "\n");
226 ERR_print_errors(bio_err);
227 OPENSSL_clear_free(buf, BUFSIZE);
228 OPENSSL_free(cipher);
229 OPENSSL_free(digest);
230 sk_OPENSSL_STRING_free(opts);
233 EVP_MAC_CTX_free(ctx);