}
static void
-do_KAT_PRF(
- void (*prf)(void *dst, size_t len,
- const void *secret, size_t secret_len,
- const char *label, const void *seed, size_t seed_len),
+do_KAT_PRF(br_tls_prf_impl prf,
const char *ssecret, const char *label, const char *sseed,
const char *sref)
{
unsigned char secret[100], seed[100], ref[500], out[500];
size_t secret_len, seed_len, ref_len;
+ br_tls_prf_seed_chunk chunks[2];
secret_len = hextobin(secret, ssecret);
seed_len = hextobin(seed, sseed);
ref_len = hextobin(ref, sref);
- prf(out, ref_len, secret, secret_len, label, seed, seed_len);
- check_equals("TLS PRF KAT", out, ref, ref_len);
+
+ chunks[0].data = seed;
+ chunks[0].len = seed_len;
+ prf(out, ref_len, secret, secret_len, label, 1, chunks);
+ check_equals("TLS PRF KAT 1", out, ref, ref_len);
+
+ chunks[0].data = seed;
+ chunks[0].len = seed_len;
+ chunks[1].data = NULL;
+ chunks[1].len = 0;
+ prf(out, ref_len, secret, secret_len, label, 2, chunks);
+ check_equals("TLS PRF KAT 2", out, ref, ref_len);
+
+ chunks[0].data = NULL;
+ chunks[0].len = 0;
+ chunks[1].data = seed;
+ chunks[1].len = seed_len;
+ prf(out, ref_len, secret, secret_len, label, 2, chunks);
+ check_equals("TLS PRF KAT 3", out, ref, ref_len);
+
+ chunks[0].data = seed;
+ chunks[0].len = seed_len >> 1;
+ chunks[1].data = seed + chunks[0].len;
+ chunks[1].len = seed_len - chunks[0].len;
+ prf(out, ref_len, secret, secret_len, label, 2, chunks);
+ check_equals("TLS PRF KAT 4", out, ref, ref_len);
}
static void