2 * Copyright (c) 2008 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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37 #include <krb5-types.h> /* should really be stdint.h */
38 #include <hcrypto/evp.h>
39 #include <hcrypto/evp-pkcs11.h>
41 #include <hcrypto/evp-cc.h>
44 #include <hcrypto/evp-w32.h>
50 /* key and initial vector */
52 "\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4"
53 "\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4";
54 static char ivec[16] =
55 "\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4"
56 "\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4";
59 usage(int exit_code) __attribute__((noreturn));
64 printf("usage: %s in out [pkcs11 | cc | w32]\n", getprogname());
70 main(int argc, char **argv)
73 const char *ifn = NULL, *ofn = NULL;
77 size_t block_size = 0;
78 const EVP_CIPHER *c = EVP_aes_128_cbc();
85 if (strcmp(argv[1], "--version") == 0) {
89 if (strcmp(argv[1], "--help") == 0)
92 } else if (argc == 4 || argc == 5) {
93 block_size = atoi(argv[1]);
95 errx(1, "invalid blocksize %s", argv[1]);
99 if (strcmp(argv[4], "pkcs11") == 0)
100 c = hc_EVP_pkcs11_aes_128_cbc();
102 else if (strcmp(argv[4], "cc") == 0)
103 c = hc_EVP_cc_aes_128_cbc();
106 else if (strcmp(argv[4], "w32") == 0)
107 c = hc_EVP_w32crypto_aes_128_cbc();
115 in = fopen(ifn, "r");
117 errx(1, "failed to open input file");
118 out = fopen(ofn, "w+");
120 errx(1, "failed to open output file");
122 /* Check that key and ivec are long enough */
123 assert(EVP_CIPHER_key_length(c) <= sizeof(key));
124 assert(EVP_CIPHER_iv_length(c) <= sizeof(ivec));
127 * Allocate buffer, the output buffer is at least
128 * EVP_CIPHER_block_size() longer
130 ibuf = malloc(block_size);
131 obuf = malloc(block_size + EVP_CIPHER_block_size(c));
134 * Init the memory used for EVP_CIPHER_CTX and set the key and
137 EVP_CIPHER_CTX_init(&ctx);
138 EVP_CipherInit_ex(&ctx, c, NULL, key, ivec, encryptp);
141 while ((ilen = fread(ibuf, 1, block_size, in)) > 0) {
142 /* encrypto/decrypt */
143 ret = EVP_CipherUpdate(&ctx, obuf, &olen, ibuf, ilen);
145 EVP_CIPHER_CTX_cleanup(&ctx);
146 errx(1, "EVP_CipherUpdate failed");
148 /* write out to output file */
149 fwrite(obuf, 1, olen, out);
154 /* clear up any last bytes left in the output buffer */
155 ret = EVP_CipherFinal_ex(&ctx, obuf, &olen);
156 EVP_CIPHER_CTX_cleanup(&ctx);
158 errx(1, "EVP_CipherFinal_ex failed");
160 /* write the last bytes out and close */
161 fwrite(obuf, 1, olen, out);