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ed25519: Add tests blinding bad ed25519 pubkeys.

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This commit is contained in:
George Kadianakis 2017-06-28 16:02:21 +03:00
parent 0269e4ffba
commit f85c1874ad
1 changed files with 34 additions and 0 deletions
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34
src/test/test_crypto.c
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@ -2544,6 +2544,39 @@ test_crypto_ed25519_blinding(void *arg)
; ;
} }
/** Test that our blinding functions will fail if we pass them bad pubkeys */
static void
test_crypto_ed25519_blinding_fail(void *arg)
{
int retval;
uint8_t param[32] = {2};
ed25519_public_key_t pub;
ed25519_public_key_t pub_blinded;
(void)arg;
/* This point is not on the curve: the blind routines should fail */
const char badkey[] =
"e19c65de75c68cf3b7643ea732ba9eb1a3d20d6d57ba223c2ece1df66feb5af0";
retval = base16_decode((char*)pub.pubkey, sizeof(pub.pubkey),
badkey, strlen(badkey));
tt_int_op(retval, OP_EQ, sizeof(pub.pubkey));
retval = ed25519_public_blind(&pub_blinded, &pub, param);
tt_int_op(retval, OP_EQ, -1);
/* This point is legit: blind routines should be happy */
const char goodkey[] =
"4ba2e44760dff4c559ef3c38768c1c14a8a54740c782c8d70803e9d6e3ad8794";
retval = base16_decode((char*)pub.pubkey, sizeof(pub.pubkey),
goodkey, strlen(goodkey));
tt_int_op(retval, OP_EQ, sizeof(pub.pubkey));
retval = ed25519_public_blind(&pub_blinded, &pub, param);
tt_int_op(retval, OP_EQ, 0);
done:
;
}
static void static void
test_crypto_ed25519_testvectors(void *arg) test_crypto_ed25519_testvectors(void *arg)
{ {
@ -2981,6 +3014,7 @@ struct testcase_t crypto_tests[] = {
ED25519_TEST(encode, 0), ED25519_TEST(encode, 0),
ED25519_TEST(convert, 0), ED25519_TEST(convert, 0),
ED25519_TEST(blinding, 0), ED25519_TEST(blinding, 0),
ED25519_TEST(blinding_fail, 0),
ED25519_TEST(testvectors, 0), ED25519_TEST(testvectors, 0),
ED25519_TEST(validation, 0), ED25519_TEST(validation, 0),
{ "ed25519_storage", test_crypto_ed25519_storage, 0, NULL, NULL }, { "ed25519_storage", test_crypto_ed25519_storage, 0, NULL, NULL },