2 * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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>
20 #define BUFSIZE 1024*8
22 typedef enum OPTION_choice {
23 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
24 OPT_MACOPT, OPT_BIN, OPT_IN, OPT_OUT,
28 const OPTIONS mac_options[] = {
29 {OPT_HELP_STR, 1, '-', "Usage: %s [options] mac_name\n"},
31 OPT_SECTION("General"),
32 {"help", OPT_HELP, '-', "Display this summary"},
33 {"macopt", OPT_MACOPT, 's', "MAC algorithm parameters in n:v form"},
34 {OPT_MORE_STR, 1, '-', "See 'PARAMETER NAMES' in the EVP_MAC_ docs"},
37 {"in", OPT_IN, '<', "Input file to MAC (default is stdin)"},
39 OPT_SECTION("Output"),
40 {"out", OPT_OUT, '>', "Output to filename rather than stdout"},
41 {"binary", OPT_BIN, '-',
42 "Output in binary format (default is hexadecimal)"},
47 {"mac_name", 0, 0, "MAC algorithm"},
51 int mac_main(int argc, char **argv)
57 EVP_MAC_CTX *ctx = NULL;
58 STACK_OF(OPENSSL_STRING) *opts = NULL;
59 unsigned char *buf = NULL;
62 BIO *in = NULL, *out = NULL;
63 const char *outfile = NULL;
64 const char *infile = NULL;
66 int inform = FORMAT_BINARY;
68 prog = opt_init(argc, argv, mac_options);
69 buf = app_malloc(BUFSIZE, "I/O buffer");
70 while ((o = opt_next()) != OPT_EOF) {
74 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
77 opt_help(mac_options);
91 opts = sk_OPENSSL_STRING_new_null();
92 if (opts == NULL || !sk_OPENSSL_STRING_push(opts, opt_arg()))
101 argc = opt_num_rest();
105 BIO_printf(bio_err, "Invalid number of extra arguments\n");
109 mac = EVP_MAC_fetch(NULL, argv[0], NULL);
111 BIO_printf(bio_err, "Invalid MAC name %s\n", argv[0]);
115 ctx = EVP_MAC_CTX_new(mac);
122 app_params_new_from_opts(opts, EVP_MAC_settable_ctx_params(mac));
127 if (!EVP_MAC_CTX_set_params(ctx, params)) {
128 BIO_printf(bio_err, "MAC parameter error\n");
129 ERR_print_errors(bio_err);
132 app_params_free(params);
137 /* Use text mode for stdin */
138 if (infile == NULL || strcmp(infile, "-") == 0)
139 inform = FORMAT_TEXT;
140 in = bio_open_default(infile, 'r', inform);
144 out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
148 if (!EVP_MAC_init(ctx)) {
149 BIO_printf(bio_err, "EVP_MAC_Init failed\n");
154 i = BIO_read(in, (char *)buf, BUFSIZE);
156 BIO_printf(bio_err, "Read Error in '%s'\n", infile);
161 if (!EVP_MAC_update(ctx, buf, i)) {
162 BIO_printf(bio_err, "EVP_MAC_update failed\n");
167 if (!EVP_MAC_final(ctx, NULL, &len, 0)) {
168 BIO_printf(bio_err, "EVP_MAC_final failed\n");
172 BIO_printf(bio_err, "output len is too large\n");
176 if (!EVP_MAC_final(ctx, buf, &len, BUFSIZE)) {
177 BIO_printf(bio_err, "EVP_MAC_final failed\n");
182 BIO_write(out, buf, len);
185 BIO_printf(out,"\n");
186 for (i = 0; i < (int)len; ++i)
187 BIO_printf(out, "%02X", buf[i]);
189 BIO_printf(out,"\n");
195 ERR_print_errors(bio_err);
196 OPENSSL_clear_free(buf, BUFSIZE);
197 sk_OPENSSL_STRING_free(opts);
200 EVP_MAC_CTX_free(ctx);