|| !TEST_true(BN_hex2bn(&p, "FFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, "FFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"))
|| !TEST_true(BN_hex2bn(&b, "1C97BEFC"
|| !TEST_true(BN_hex2bn(&p, "FFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, "FFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"))
|| !TEST_true(BN_hex2bn(&b, "64210519E59C80E7"
|| !TEST_true(BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFF000000000000000000000001"))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"))
|| !TEST_true(BN_hex2bn(&b, "B4050A850C04B3ABF5413256"
|| !TEST_true(BN_hex2bn(&p, "FFFFFFFF000000010000000000000000"
"00000000FFFFFFFFFFFFFFFFFFFFFFFF"))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, "FFFFFFFF000000010000000000000000"
"00000000FFFFFFFFFFFFFFFFFFFFFFFC"))
|| !TEST_true(BN_hex2bn(&b, "5AC635D8AA3A93E7B3EBBD55769886BC"
|| !TEST_true(BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
"FFFFFFFF0000000000000000FFFFFFFF"))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
"FFFFFFFF0000000000000000FFFFFFFC"))
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, "1FF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|| !TEST_ptr(NISTP = EC_GROUP_new(test->meth()))
|| !TEST_true(BN_hex2bn(&p, test->p))
- || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+ || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
|| !TEST_true(BN_hex2bn(&a, test->a))
|| !TEST_true(BN_hex2bn(&b, test->b))
|| !TEST_true(EC_GROUP_set_curve(NISTP, p, a, b, ctx))
group_cofactor))
|| !TEST_int_eq(EC_GROUP_check_named_curve(gtest, 0, NULL), 0)
/* The order is not an optional field, so this should fail */
- || TEST_true(EC_GROUP_set_generator(gtest, group_gen, NULL,
- group_cofactor))
+ || !TEST_false(EC_GROUP_set_generator(gtest, group_gen, NULL,
+ group_cofactor))
|| !TEST_true(EC_GROUP_set_generator(gtest, group_gen, group_order,
other_cofactor))
|| !TEST_int_eq(EC_GROUP_check_named_curve(gtest, 0, NULL), 0)
return r;
}
+/*-
+ * random 256-bit explicit parameters curve, cofactor absent
+ * order: 0x0c38d96a9f892b88772ec2e39614a82f4f (132 bit)
+ * cofactor: 0x12bc94785251297abfafddf1565100da (125 bit)
+ */
+static const unsigned char params_cf_pass[] = {
+ 0x30, 0x81, 0xcd, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86,
+ 0x48, 0xce, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xe5, 0x00, 0x1f, 0xc5,
+ 0xca, 0x71, 0x9d, 0x8e, 0xf7, 0x07, 0x4b, 0x48, 0x37, 0xf9, 0x33, 0x2d,
+ 0x71, 0xbf, 0x79, 0xe7, 0xdc, 0x91, 0xc2, 0xff, 0xb6, 0x7b, 0xc3, 0x93,
+ 0x44, 0x88, 0xe6, 0x91, 0x30, 0x44, 0x04, 0x20, 0xe5, 0x00, 0x1f, 0xc5,
+ 0xca, 0x71, 0x9d, 0x8e, 0xf7, 0x07, 0x4b, 0x48, 0x37, 0xf9, 0x33, 0x2d,
+ 0x71, 0xbf, 0x79, 0xe7, 0xdc, 0x91, 0xc2, 0xff, 0xb6, 0x7b, 0xc3, 0x93,
+ 0x44, 0x88, 0xe6, 0x8e, 0x04, 0x20, 0x18, 0x8c, 0x59, 0x57, 0xc4, 0xbc,
+ 0x85, 0x57, 0xc3, 0x66, 0x9f, 0x89, 0xd5, 0x92, 0x0d, 0x7e, 0x42, 0x27,
+ 0x07, 0x64, 0xaa, 0x26, 0xed, 0x89, 0xc4, 0x09, 0x05, 0x4d, 0xc7, 0x23,
+ 0x47, 0xda, 0x04, 0x41, 0x04, 0x1b, 0x6b, 0x41, 0x0b, 0xf9, 0xfb, 0x77,
+ 0xfd, 0x50, 0xb7, 0x3e, 0x23, 0xa3, 0xec, 0x9a, 0x3b, 0x09, 0x31, 0x6b,
+ 0xfa, 0xf6, 0xce, 0x1f, 0xff, 0xeb, 0x57, 0x93, 0x24, 0x70, 0xf3, 0xf4,
+ 0xba, 0x7e, 0xfa, 0x86, 0x6e, 0x19, 0x89, 0xe3, 0x55, 0x6d, 0x5a, 0xe9,
+ 0xc0, 0x3d, 0xbc, 0xfb, 0xaf, 0xad, 0xd4, 0x7e, 0xa6, 0xe5, 0xfa, 0x1a,
+ 0x58, 0x07, 0x9e, 0x8f, 0x0d, 0x3b, 0xf7, 0x38, 0xca, 0x02, 0x11, 0x0c,
+ 0x38, 0xd9, 0x6a, 0x9f, 0x89, 0x2b, 0x88, 0x77, 0x2e, 0xc2, 0xe3, 0x96,
+ 0x14, 0xa8, 0x2f, 0x4f
+};
+
+/*-
+ * random 256-bit explicit parameters curve, cofactor absent
+ * order: 0x045a75c0c17228ebd9b169a10e34a22101 (131 bit)
+ * cofactor: 0x2e134b4ede82649f67a2e559d361e5fe (126 bit)
+ */
+static const unsigned char params_cf_fail[] = {
+ 0x30, 0x81, 0xcd, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86,
+ 0x48, 0xce, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xc8, 0x95, 0x27, 0x37,
+ 0xe8, 0xe1, 0xfd, 0xcc, 0xf9, 0x6e, 0x0c, 0xa6, 0x21, 0xc1, 0x7d, 0x6b,
+ 0x9d, 0x44, 0x42, 0xea, 0x73, 0x4e, 0x04, 0xb6, 0xac, 0x62, 0x50, 0xd0,
+ 0x33, 0xc2, 0xea, 0x13, 0x30, 0x44, 0x04, 0x20, 0xc8, 0x95, 0x27, 0x37,
+ 0xe8, 0xe1, 0xfd, 0xcc, 0xf9, 0x6e, 0x0c, 0xa6, 0x21, 0xc1, 0x7d, 0x6b,
+ 0x9d, 0x44, 0x42, 0xea, 0x73, 0x4e, 0x04, 0xb6, 0xac, 0x62, 0x50, 0xd0,
+ 0x33, 0xc2, 0xea, 0x10, 0x04, 0x20, 0xbf, 0xa6, 0xa8, 0x05, 0x1d, 0x09,
+ 0xac, 0x70, 0x39, 0xbb, 0x4d, 0xb2, 0x90, 0x8a, 0x15, 0x41, 0x14, 0x1d,
+ 0x11, 0x86, 0x9f, 0x13, 0xa2, 0x63, 0x1a, 0xda, 0x95, 0x22, 0x4d, 0x02,
+ 0x15, 0x0a, 0x04, 0x41, 0x04, 0xaf, 0x16, 0x71, 0xf9, 0xc4, 0xc8, 0x59,
+ 0x1d, 0xa3, 0x6f, 0xe7, 0xc3, 0x57, 0xa1, 0xfa, 0x9f, 0x49, 0x7c, 0x11,
+ 0x27, 0x05, 0xa0, 0x7f, 0xff, 0xf9, 0xe0, 0xe7, 0x92, 0xdd, 0x9c, 0x24,
+ 0x8e, 0xc7, 0xb9, 0x52, 0x71, 0x3f, 0xbc, 0x7f, 0x6a, 0x9f, 0x35, 0x70,
+ 0xe1, 0x27, 0xd5, 0x35, 0x8a, 0x13, 0xfa, 0xa8, 0x33, 0x3e, 0xd4, 0x73,
+ 0x1c, 0x14, 0x58, 0x9e, 0xc7, 0x0a, 0x87, 0x65, 0x8d, 0x02, 0x11, 0x04,
+ 0x5a, 0x75, 0xc0, 0xc1, 0x72, 0x28, 0xeb, 0xd9, 0xb1, 0x69, 0xa1, 0x0e,
+ 0x34, 0xa2, 0x21, 0x01
+};
+
+/*-
+ * Test two random 256-bit explicit parameters curves with absent cofactor.
+ * The two curves are chosen to roughly straddle the bounds at which the lib
+ * can compute the cofactor automatically, roughly 4*sqrt(p). So test that:
+ *
+ * - params_cf_pass: order is sufficiently close to p to compute cofactor
+ * - params_cf_fail: order is too far away from p to compute cofactor
+ *
+ * For standards-compliant curves, cofactor is chosen as small as possible.
+ * So you can see neither of these curves are fit for cryptographic use.
+ *
+ * Some standards even mandate an upper bound on the cofactor, e.g. SECG1 v2:
+ * h <= 2**(t/8) where t is the security level of the curve, for which the lib
+ * will always succeed in computing the cofactor. Neither of these curves
+ * conform to that -- this is just robustness testing.
+ */
+static int cofactor_range_test(void)
+{
+ EC_GROUP *group = NULL;
+ BIGNUM *cf = NULL;
+ int ret = 0;
+ const unsigned char *b1 = (const unsigned char *)params_cf_fail;
+ const unsigned char *b2 = (const unsigned char *)params_cf_pass;
+
+ if (!TEST_ptr(group = d2i_ECPKParameters(NULL, &b1, sizeof(params_cf_fail)))
+ || !TEST_BN_eq_zero(EC_GROUP_get0_cofactor(group))
+ || !TEST_ptr(group = d2i_ECPKParameters(&group, &b2,
+ sizeof(params_cf_pass)))
+ || !TEST_int_gt(BN_hex2bn(&cf, "12bc94785251297abfafddf1565100da"), 0)
+ || !TEST_BN_eq(cf, EC_GROUP_get0_cofactor(group)))
+ goto err;
+ ret = 1;
+ err:
+ BN_free(cf);
+ EC_GROUP_free(group);
+ return ret;
+}
+
/*-
* For named curves, test that:
* - the lib correctly computes the cofactor if passed a NULL or zero cofactor
BIGNUM *g1_p = NULL, *g1_a = NULL, *g1_b = NULL, *g1_x = NULL, *g1_y = NULL,
*g1_order = NULL, *g1_cf = NULL, *g2_cf = NULL;
- TEST_info("Curve %s cardinality test", OBJ_nid2sn(nid));
+ TEST_info("Curve %s cardinality test", OBJ_nid2sn(nid));
if (!TEST_ptr(ctx = BN_CTX_new())
|| !TEST_ptr(g1 = EC_GROUP_new_by_curve_name(nid))
BIGNUM *x = NULL, *y = NULL;
EC_KEY *key = NULL;
- if (!(TEST_ptr(x = BN_new())
- && TEST_ptr(y = BN_new())
- && TEST_ptr(key = EC_KEY_new_by_curve_name(curves[id].nid))
- && TEST_ptr(group = EC_KEY_get0_group(key))
- && TEST_ptr(meth = EC_GROUP_method_of(group))
- && TEST_ptr(field = EC_GROUP_get0_field(group))
- && TEST_int_gt(EC_KEY_generate_key(key), 0)
- && TEST_int_gt(EC_KEY_check_key(key), 0)
- && TEST_ptr(pub = EC_KEY_get0_public_key(key))
- && TEST_int_gt(EC_POINT_get_affine_coordinates(group, pub, x, y,
- NULL), 0)))
+ if (!TEST_ptr(x = BN_new())
+ || !TEST_ptr(y = BN_new())
+ || !TEST_ptr(key = EC_KEY_new_by_curve_name(curves[id].nid))
+ || !TEST_ptr(group = EC_KEY_get0_group(key))
+ || !TEST_ptr(meth = EC_GROUP_method_of(group))
+ || !TEST_ptr(field = EC_GROUP_get0_field(group))
+ || !TEST_int_gt(EC_KEY_generate_key(key), 0)
+ || !TEST_int_gt(EC_KEY_check_key(key), 0)
+ || !TEST_ptr(pub = EC_KEY_get0_public_key(key))
+ || !TEST_int_gt(EC_POINT_get_affine_coordinates(group, pub, x, y,
+ NULL), 0))
goto err;
/*
EC_KEY_free(key);
return ret;
}
+
+/*
+ * Helper for ec_point_hex2point_test
+ *
+ * Self-tests EC_POINT_point2hex() against EC_POINT_hex2point() for the given
+ * (group,P) pair.
+ *
+ * If P is NULL use point at infinity.
+ */
+static ossl_inline
+int ec_point_hex2point_test_helper(const EC_GROUP *group, const EC_POINT *P,
+ point_conversion_form_t form,
+ BN_CTX *bnctx)
+{
+ int ret = 0;
+ EC_POINT *Q = NULL, *Pinf = NULL;
+ char *hex = NULL;
+
+ if (P == NULL) {
+ /* If P is NULL use point at infinity. */
+ if (!TEST_ptr(Pinf = EC_POINT_new(group))
+ || !TEST_true(EC_POINT_set_to_infinity(group, Pinf)))
+ goto err;
+ P = Pinf;
+ }
+
+ if (!TEST_ptr(hex = EC_POINT_point2hex(group, P, form, bnctx))
+ || !TEST_ptr(Q = EC_POINT_hex2point(group, hex, NULL, bnctx))
+ || !TEST_int_eq(0, EC_POINT_cmp(group, Q, P, bnctx)))
+ goto err;
+
+ /*
+ * The next check is most likely superfluous, as EC_POINT_cmp should already
+ * cover this.
+ * Nonetheless it increases the test coverage for EC_POINT_is_at_infinity,
+ * so we include it anyway!
+ */
+ if (Pinf != NULL
+ && !TEST_true(EC_POINT_is_at_infinity(group, Q)))
+ goto err;
+
+ ret = 1;
+
+ err:
+ EC_POINT_free(Pinf);
+ OPENSSL_free(hex);
+ EC_POINT_free(Q);
+
+ return ret;
+}
+
+/*
+ * This test self-validates EC_POINT_hex2point() and EC_POINT_point2hex()
+ */
+static int ec_point_hex2point_test(int id)
+{
+ int ret = 0, nid;
+ EC_GROUP *group = NULL;
+ const EC_POINT *G = NULL;
+ EC_POINT *P = NULL;
+ BN_CTX * bnctx = NULL;
+
+ /* Do some setup */
+ nid = curves[id].nid;
+ if (!TEST_ptr(bnctx = BN_CTX_new())
+ || !TEST_ptr(group = EC_GROUP_new_by_curve_name(nid))
+ || !TEST_ptr(G = EC_GROUP_get0_generator(group))
+ || !TEST_ptr(P = EC_POINT_dup(G, group)))
+ goto err;
+
+ if (!TEST_true(ec_point_hex2point_test_helper(group, P,
+ POINT_CONVERSION_COMPRESSED,
+ bnctx))
+ || !TEST_true(ec_point_hex2point_test_helper(group, NULL,
+ POINT_CONVERSION_COMPRESSED,
+ bnctx))
+ || !TEST_true(ec_point_hex2point_test_helper(group, P,
+ POINT_CONVERSION_UNCOMPRESSED,
+ bnctx))
+ || !TEST_true(ec_point_hex2point_test_helper(group, NULL,
+ POINT_CONVERSION_UNCOMPRESSED,
+ bnctx))
+ || !TEST_true(ec_point_hex2point_test_helper(group, P,
+ POINT_CONVERSION_HYBRID,
+ bnctx))
+ || !TEST_true(ec_point_hex2point_test_helper(group, NULL,
+ POINT_CONVERSION_HYBRID,
+ bnctx)))
+ goto err;
+
+ ret = 1;
+
+ err:
+ EC_POINT_free(P);
+ EC_GROUP_free(group);
+ BN_CTX_free(bnctx);
+
+ return ret;
+}
+
#endif /* OPENSSL_NO_EC */
int setup_tests(void)
return 0;
ADD_TEST(parameter_test);
+ ADD_TEST(cofactor_range_test);
ADD_ALL_TESTS(cardinality_test, crv_len);
ADD_TEST(prime_field_tests);
# ifndef OPENSSL_NO_EC2M
ADD_ALL_TESTS(check_named_curve_lookup_test, crv_len);
ADD_ALL_TESTS(check_ec_key_field_public_range_test, crv_len);
ADD_ALL_TESTS(check_named_curve_from_ecparameters, crv_len);
+ ADD_ALL_TESTS(ec_point_hex2point_test, crv_len);
#endif /* OPENSSL_NO_EC */
return 1;
}
projects / openssl.git / blobdiff