blowfish_test.c (2633B)
1 /********************************************************************* 2 * Filename: blowfish_test.c 3 * Author: Brad Conte (brad AT bradconte.com) 4 * Copyright: 5 * Disclaimer: This code is presented "as is" without any guarantees. 6 * Details: Performs known-answer tests on the corresponding Blowfish 7 implementation. These tests do not encompass the full 8 range of available test vectors, however, if the tests 9 pass it is very, very likely that the code is correct 10 and was compiled properly. This code also serves as 11 example usage of the functions. 12 *********************************************************************/ 13 14 /*************************** HEADER FILES ***************************/ 15 #include <stdio.h> 16 #include <memory.h> 17 #include "blowfish.h" 18 19 /*********************** FUNCTION DEFINITIONS ***********************/ 20 int blowfish_test() 21 { 22 BYTE key1[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; 23 BYTE key2[8] = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}; 24 BYTE key3[24] = {0xF0,0xE1,0xD2,0xC3,0xB4,0xA5,0x96,0x87, 25 0x78,0x69,0x5A,0x4B,0x3C,0x2D,0x1E,0x0F, 26 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77}; 27 BYTE p1[BLOWFISH_BLOCK_SIZE] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; 28 BYTE p2[BLOWFISH_BLOCK_SIZE] = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}; 29 BYTE p3[BLOWFISH_BLOCK_SIZE] = {0xFE,0xDC,0xBA,0x98,0x76,0x54,0x32,0x10}; 30 31 BYTE c1[BLOWFISH_BLOCK_SIZE] = {0x4e,0xf9,0x97,0x45,0x61,0x98,0xdd,0x78}; 32 BYTE c2[BLOWFISH_BLOCK_SIZE] = {0x51,0x86,0x6f,0xd5,0xb8,0x5e,0xcb,0x8a}; 33 BYTE c3[BLOWFISH_BLOCK_SIZE] = {0x05,0x04,0x4b,0x62,0xfa,0x52,0xd0,0x80}; 34 35 BYTE enc_buf[BLOWFISH_BLOCK_SIZE]; 36 BLOWFISH_KEY key; 37 int pass = 1; 38 39 // Test vector 1. 40 blowfish_key_setup(key1, &key, BLOWFISH_BLOCK_SIZE); 41 blowfish_encrypt(p1, enc_buf, &key); 42 pass = pass && !memcmp(c1, enc_buf, BLOWFISH_BLOCK_SIZE); 43 blowfish_decrypt(c1, enc_buf, &key); 44 pass = pass && !memcmp(p1, enc_buf, BLOWFISH_BLOCK_SIZE); 45 46 // Test vector 2. 47 blowfish_key_setup(key2, &key, BLOWFISH_BLOCK_SIZE); 48 blowfish_encrypt(p2, enc_buf, &key); 49 pass = pass && !memcmp(c2, enc_buf, BLOWFISH_BLOCK_SIZE); 50 blowfish_decrypt(c2, enc_buf, &key); 51 pass = pass && !memcmp(p2, enc_buf, BLOWFISH_BLOCK_SIZE); 52 53 // Test vector 3. 54 blowfish_key_setup(key3, &key, 24); 55 blowfish_encrypt(p3, enc_buf, &key); 56 pass = pass && !memcmp(c3, enc_buf, BLOWFISH_BLOCK_SIZE); 57 blowfish_decrypt(c3, enc_buf, &key); 58 pass = pass && !memcmp(p3, enc_buf, BLOWFISH_BLOCK_SIZE); 59 60 return(pass); 61 } 62 63 int main() 64 { 65 printf("Blowfish tests: %s\n", blowfish_test() ? "SUCCEEDED" : "FAILED"); 66 67 return(0); 68 }