1 /*- 2 * Copyright (c) 2003 Poul-Henning Kamp 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 * 28 * This test checks for inplace decryption working. This is the case 29 * where the same buffer is passed as input and output to 30 * rijndael_blockDecrypt(). 31 */ 32 33 #include <stdio.h> 34 #include <sys/param.h> 35 #include <sys/types.h> 36 37 #include <crypto/rijndael/rijndael-api-fst.h> 38 39 #define LL 32 40 int 41 main(int argc, char **argv) 42 { 43 keyInstance ki; 44 cipherInstance ci; 45 uint8_t key[16]; 46 uint8_t in[LL]; 47 uint8_t out[LL]; 48 int i, j; 49 50 rijndael_cipherInit(&ci, MODE_CBC, NULL); 51 for (i = 0; i < 16; i++) 52 key[i] = i; 53 rijndael_makeKey(&ki, DIR_DECRYPT, 128, key); 54 for (i = 0; i < LL; i++) 55 in[i] = i; 56 rijndael_blockDecrypt(&ci, &ki, in, LL * 8, out); 57 for (i = 0; i < LL; i++) 58 printf("%02x", out[i]); 59 putchar('\n'); 60 rijndael_blockDecrypt(&ci, &ki, in, LL * 8, in); 61 j = 0; 62 for (i = 0; i < LL; i++) { 63 printf("%02x", in[i]); 64 if (in[i] != out[i]) 65 j++; 66 } 67 putchar('\n'); 68 if (j != 0) { 69 fprintf(stderr, 70 "Error: inplace decryption fails in %d places\n", j); 71 return (1); 72 } else { 73 return (0); 74 } 75 } 76