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 * This test checks for inplace decryption working. This is the case 27 * where the same buffer is passed as input and output to 28 * rijndael_blockDecrypt(). 29 */ 30 31 #include <stdio.h> 32 #include <sys/param.h> 33 #include <sys/types.h> 34 35 #include <crypto/rijndael/rijndael-api-fst.h> 36 37 #define LL 32 38 int 39 main(int argc, char **argv) 40 { 41 keyInstance ki; 42 cipherInstance ci; 43 uint8_t key[16]; 44 uint8_t in[LL]; 45 uint8_t out[LL]; 46 int i, j; 47 48 rijndael_cipherInit(&ci, MODE_CBC, NULL); 49 for (i = 0; i < 16; i++) 50 key[i] = i; 51 rijndael_makeKey(&ki, DIR_DECRYPT, 128, key); 52 for (i = 0; i < LL; i++) 53 in[i] = i; 54 rijndael_blockDecrypt(&ci, &ki, in, LL * 8, out); 55 for (i = 0; i < LL; i++) 56 printf("%02x", out[i]); 57 putchar('\n'); 58 rijndael_blockDecrypt(&ci, &ki, in, LL * 8, in); 59 j = 0; 60 for (i = 0; i < LL; i++) { 61 printf("%02x", in[i]); 62 if (in[i] != out[i]) 63 j++; 64 } 65 putchar('\n'); 66 if (j != 0) { 67 fprintf(stderr, 68 "Error: inplace decryption fails in %d places\n", j); 69 return (1); 70 } else { 71 return (0); 72 } 73 } 74