File size: 2,304 Bytes
2166d7e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | #include "cs_test.h"
#include "cs_sha256.h"
#include <string.h>
static int hex_eq(const uint8_t *d, const char *want)
{
char h[65];
cs_hex(d, 32, h);
return strcmp(h, want) == 0;
}
TEST_MAIN_BEGIN("sha256/hmac")
uint8_t d[32];
/* FIPS 180-4 examples */
cs_sha256("", 0, d);
CHECK(hex_eq(d, "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"));
cs_sha256("abc", 3, d);
CHECK(hex_eq(d, "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"));
const char *two = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
cs_sha256(two, strlen(two), d);
CHECK(hex_eq(d, "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1"));
/* one million 'a', fed in odd-sized chunks */
cs_sha256_ctx c;
cs_sha256_init(&c);
char chunk[977];
memset(chunk, 'a', sizeof chunk);
size_t left = 1000000;
while (left) {
size_t n = left < sizeof chunk ? left : sizeof chunk;
cs_sha256_update(&c, chunk, n);
left -= n;
}
cs_sha256_final(&c, d);
CHECK(hex_eq(d, "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0"));
/* RFC 4231 test cases 1, 2 and 6 (key longer than the block size) */
uint8_t key1[20];
memset(key1, 0x0b, sizeof key1);
cs_hmac_sha256(key1, 20, "Hi There", 8, d);
CHECK(hex_eq(d, "b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7"));
cs_hmac_sha256("Jefe", 4, "what do ya want for nothing?", 28, d);
CHECK(hex_eq(d, "5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843"));
uint8_t key6[131];
memset(key6, 0xaa, sizeof key6);
const char *m6 = "Test Using Larger Than Block-Size Key - Hash Key First";
cs_hmac_sha256(key6, sizeof key6, m6, strlen(m6), d);
CHECK(hex_eq(d, "60e431591ee0b67f0d8a26aacbf5b77f8e0bc6213728c5140546040f0ee37f54"));
/* helpers */
uint8_t a[4] = {1, 2, 3, 4}, b[4] = {1, 2, 3, 4};
CHECK(cs_ct_equal(a, b, 4));
b[3] = 5;
CHECK(!cs_ct_equal(a, b, 4));
char h[9];
cs_hex(a, 4, h);
CHECK(strcmp(h, "01020304") == 0);
uint8_t back[4];
CHECK(cs_unhex(h, back, 4) == 0 && memcmp(back, a, 4) == 0);
CHECK(cs_unhex("0102zz04", back, 4) != 0);
CHECK(cs_unhex("010203", back, 4) != 0);
TEST_MAIN_END
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