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h_aesctr2.c revision 1.2 
      1 /* $NetBSD: h_aesctr2.c,v 1.2 2014/01/17 14:16:08 pgoyette Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <err.h>
     30 #include <fcntl.h>
     31 #include <stdio.h>
     32 #include <string.h>
     33 
     34 #include <sys/ioctl.h>
     35 #include <sys/time.h>
     36 
     37 #include <crypto/cryptodev.h>
     38 
     39 unsigned char key[20] = {0xae, 0x68, 0x52, 0xf8, 0x12, 0x10, 0x67, 0xcc,
     40 			 0x4b, 0xf7, 0xa5, 0x76, 0x55, 0x77, 0xf3, 0x9e,
     41 	0x00, 0x00, 0x00, 0x30};
     42 unsigned char iv[8] = {0};
     43 char plaintx[16] = "Single block msg";
     44 const unsigned char ciphertx[16] = {
     45 	0xe4, 0x09, 0x5d, 0x4f, 0xb7, 0xa7, 0xb3, 0x79,
     46 	0x2d, 0x61, 0x75, 0xa3, 0x26, 0x13, 0x11, 0xb8
     47 };
     48 
     49 int
     50 main(void)
     51 {
     52 	int fd, res;
     53 	struct session_op cs;
     54 	struct crypt_op co;
     55 	unsigned char ibuf[24];
     56 	unsigned char obuf[24];
     57 
     58 	fd = open("/dev/crypto", O_RDWR, 0);
     59 	if (fd < 0)
     60 		err(1, "open");
     61 	memset(&cs, 0, sizeof(cs));
     62 	cs.cipher = CRYPTO_AES_CTR;
     63 	cs.keylen = 20;
     64 	cs.key = key;
     65 	res = ioctl(fd, CIOCGSESSION, &cs);
     66 	if (res < 0)
     67 		err(1, "CIOCGSESSION");
     68 
     69 	memcpy(ibuf, iv, 8);
     70 	memcpy(ibuf + 8, plaintx, 16);
     71 	memset(&co, 0, sizeof(co));
     72 	co.ses = cs.ses;
     73 	co.op = COP_ENCRYPT;
     74 	co.len = sizeof(ibuf);
     75 	co.src = ibuf;
     76 	co.dst = obuf;
     77 	co.dst_len = sizeof(obuf);
     78 	res = ioctl(fd, CIOCCRYPT, &co);
     79 	if (res < 0)
     80 		err(1, "CIOCCRYPT");
     81 	memset(ibuf, 0, sizeof(ibuf));
     82 	memset(&co, 0, sizeof(co));
     83 	co.ses = cs.ses;
     84 	co.op = COP_DECRYPT;
     85 	co.len = sizeof(obuf);
     86 	co.src = obuf;
     87 	co.dst = ibuf;
     88 	co.dst_len = sizeof(ibuf);
     89 	res = ioctl(fd, CIOCCRYPT, &co);
     90 	if (res < 0)
     91 		err(1, "CIOCCRYPT");
     92 
     93 	if (memcmp((char *)co.dst + 8, plaintx, sizeof(plaintx)))
     94 		warnx("verification failed");
     95 
     96 	return 0;
     97 }
     98