diff options
Diffstat (limited to 'libavutil/des.c')
-rw-r--r-- | libavutil/des.c | 111 |
1 files changed, 1 insertions, 110 deletions
diff --git a/libavutil/des.c b/libavutil/des.c index 7d9458c81f..1dbedd92cd 100644 --- a/libavutil/des.c +++ b/libavutil/des.c @@ -111,7 +111,7 @@ static const uint8_t S_boxes[8][32] = { #else /** * This table contains the results of applying both the S-box and P-shuffle. - * It can be regenerated by compiling this file with -DCONFIG_SMALL -DTEST -DGENTABLES + * It can be regenerated by compiling des-test.c with "-DCONFIG_SMALL -DGENTABLES". */ static const uint32_t S_boxes_P_shuffle[8][64] = { { 0x00808200, 0x00000000, 0x00008000, 0x00808202, 0x00808002, 0x00008202, 0x00000002, 0x00008000, @@ -337,112 +337,3 @@ void av_des_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count) { av_des_crypt_mac(d, dst, src, count, (uint8_t[8]) { 0 }, 0, 1); } - -#ifdef TEST -#include <stdlib.h> -#include <stdio.h> - -#include "time.h" - -static uint64_t rand64(void) -{ - uint64_t r = rand(); - r = (r << 32) | rand(); - return r; -} - -static const uint8_t test_key[] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0 }; -static const DECLARE_ALIGNED(8, uint8_t, plain)[] = { 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 }; -static const DECLARE_ALIGNED(8, uint8_t, crypt)[] = { 0x4a, 0xb6, 0x5b, 0x3d, 0x4b, 0x06, 0x15, 0x18 }; -static DECLARE_ALIGNED(8, uint8_t, tmp)[8]; -static DECLARE_ALIGNED(8, uint8_t, large_buffer)[10002][8]; -static const uint8_t cbc_key[] = { - 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, - 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, - 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23 -}; - -static int run_test(int cbc, int decrypt) -{ - AVDES d; - int delay = cbc && !decrypt ? 2 : 1; - uint64_t res; - AV_WB64(large_buffer[0], 0x4e6f772069732074ULL); - AV_WB64(large_buffer[1], 0x1234567890abcdefULL); - AV_WB64(tmp, 0x1234567890abcdefULL); - av_des_init(&d, cbc_key, 192, decrypt); - av_des_crypt(&d, large_buffer[delay], large_buffer[0], 10000, cbc ? tmp : NULL, decrypt); - res = AV_RB64(large_buffer[9999 + delay]); - if (cbc) { - if (decrypt) - return res == 0xc5cecf63ecec514cULL; - else - return res == 0xcb191f85d1ed8439ULL; - } else { - if (decrypt) - return res == 0x8325397644091a0aULL; - else - return res == 0xdd17e8b8b437d232ULL; - } -} - -int main(void) -{ - AVDES d; - int i; - uint64_t key[3]; - uint64_t data; - uint64_t ct; - uint64_t roundkeys[16]; - srand(av_gettime()); - key[0] = AV_RB64(test_key); - data = AV_RB64(plain); - gen_roundkeys(roundkeys, key[0]); - if (des_encdec(data, roundkeys, 0) != AV_RB64(crypt)) { - printf("Test 1 failed\n"); - return 1; - } - av_des_init(&d, test_key, 64, 0); - av_des_crypt(&d, tmp, plain, 1, NULL, 0); - if (memcmp(tmp, crypt, sizeof(crypt))) { - printf("Public API decryption failed\n"); - return 1; - } - if (!run_test(0, 0) || !run_test(0, 1) || !run_test(1, 0) || !run_test(1, 1)) { - printf("Partial Monte-Carlo test failed\n"); - return 1; - } - for (i = 0; i < 1000; i++) { - key[0] = rand64(); - key[1] = rand64(); - key[2] = rand64(); - data = rand64(); - av_des_init(&d, key, 192, 0); - av_des_crypt(&d, &ct, &data, 1, NULL, 0); - av_des_init(&d, key, 192, 1); - av_des_crypt(&d, &ct, &ct, 1, NULL, 1); - if (ct != data) { - printf("Test 2 failed\n"); - return 1; - } - } -#ifdef GENTABLES - printf("static const uint32_t S_boxes_P_shuffle[8][64] = {\n"); - for (i = 0; i < 8; i++) { - int j; - printf(" {"); - for (j = 0; j < 64; j++) { - uint32_t v = S_boxes[i][j >> 1]; - v = j & 1 ? v >> 4 : v & 0xf; - v <<= 28 - 4 * i; - v = shuffle(v, P_shuffle, sizeof(P_shuffle)); - printf((j & 7) == 0 ? "\n " : " "); - printf("0x%08X,", v); - } - printf("\n },\n"); - } - printf("};\n"); -#endif - return 0; -} -#endif |