dimitri/cryptopals
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add test for single-char xor

Browse source
This commit is contained in:
Dimitri Lozeve 2020-06-10 18:15:53 +02:00
parent cb30d47479
commit 099bb473ba
1 changed files with 25 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

25
tests/main.c
View file

@ -90,6 +90,29 @@ static MunitResult test_hamming(const MunitParameter params[], void *data) {
return MUNIT_OK;
}
static MunitResult test_single_char_xor(const MunitParameter params[],
void *data) {
// This is actually challenge 3.
(void)params;
(void)data;
const char *in =
"1b37373331363f78151b7f2b783431333d78397828372d363c78373e783a393b3736";
unsigned char buf[512] = {0};
size_t len = hex_to_bytes(buf, in);
char key = best_single_char_xor_key(len, buf);
assert_char(key, ==, 'X');
char cleartext[512] = {'\0'};
for (size_t i = 0; i < len; ++i) {
cleartext[i] = buf[i] ^ key;
}
assert_string_equal(cleartext, "Cooking MC's like a pound of bacon");
return MUNIT_OK;
}
static MunitTest test_suite_tests[] = {
{"/hex_to_byte", test_hex_to_byte, NULL, NULL, MUNIT_TEST_OPTION_NONE,
NULL},
@ -100,6 +123,8 @@ static MunitTest test_suite_tests[] = {
{"/frequency_score", test_frequency_score, NULL, NULL,
MUNIT_TEST_OPTION_NONE, NULL},
{"/hamming", test_hamming, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL},
{"/single_char_xor", test_single_char_xor, NULL, NULL,
MUNIT_TEST_OPTION_NONE, NULL},
{NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL}};
static const MunitSuite test_suite = {(char *)"", test_suite_tests, NULL, 1,