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xtea: Test inplace decryption

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Based on test code by: Giorgio Vazzana <mywing81@gmail.com>

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Michael Niedermayer
2012-09-30 17:36:01 +02:00
committed by Martin Storsjö
parent b434500431
commit f0fce9f33e
1 changed files with 15 additions and 1 deletions
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16
libavutil/xtea.c
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@@ -160,14 +160,28 @@ static void test_xtea(AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
int main(void) int main(void)
{ {
AVXTEA ctx; AVXTEA ctx;
uint8_t buf[8]; uint8_t buf[8], iv[8];
int i; int i;
const uint8_t src[32] = "HelloWorldHelloWorldHelloWorld";
uint8_t ct[32];
uint8_t pl[32];
for (i = 0; i < XTEA_NUM_TESTS; i++) { for (i = 0; i < XTEA_NUM_TESTS; i++) {
av_xtea_init(&ctx, xtea_test_key[i]); av_xtea_init(&ctx, xtea_test_key[i]);
test_xtea(&ctx, buf, xtea_test_pt[i], xtea_test_ct[i], 1, NULL, 0, "encryption"); test_xtea(&ctx, buf, xtea_test_pt[i], xtea_test_ct[i], 1, NULL, 0, "encryption");
test_xtea(&ctx, buf, xtea_test_ct[i], xtea_test_pt[i], 1, NULL, 1, "decryption"); test_xtea(&ctx, buf, xtea_test_ct[i], xtea_test_pt[i], 1, NULL, 1, "decryption");
/* encrypt */
memcpy(iv, "HALLO123", 8);
av_xtea_crypt(&ctx, ct, src, 4, iv, 0);
/* decrypt into pl */
memcpy(iv, "HALLO123", 8);
test_xtea(&ctx, pl, ct, src, 4, iv, 1, "CBC decryption");
memcpy(iv, "HALLO123", 8);
test_xtea(&ctx, ct, ct, src, 4, iv, 1, "CBC inplace decryption");
} }
printf("Test encryption/decryption success.\n"); printf("Test encryption/decryption success.\n");