/*
- * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2001-2020 The OpenSSL Project Authors. All Rights Reserved.
* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
test_output_memory("Generator as octet string, hybrid form:",
buf, len);
- if (!TEST_true(EC_POINT_get_Jprojective_coordinates_GFp(group, R, x, y, z,
- ctx)))
- goto err;
- TEST_info("A representation of the inverse of that generator in");
- TEST_note("Jacobian projective coordinates");
- test_output_bignum("x", x);
- test_output_bignum("y", y);
- test_output_bignum("z", z);
-
if (!TEST_true(EC_POINT_invert(group, P, ctx))
|| !TEST_int_eq(0, EC_POINT_cmp(group, P, R, ctx))
BN_CTX_free(ctx);
return r;
}
-
-/*
- * Tests a point known to cause an incorrect underflow in an old version of
- * ecp_nist521.c
- */
-static int underflow_test(void)
-{
- BN_CTX *ctx = NULL;
- EC_GROUP *grp = NULL;
- EC_POINT *P = NULL, *Q = NULL, *R = NULL;
- BIGNUM *x1 = NULL, *y1 = NULL, *z1 = NULL, *x2 = NULL, *y2 = NULL;
- BIGNUM *k = NULL;
- int testresult = 0;
- const char *x1str =
- "1534f0077fffffe87e9adcfe000000000000000000003e05a21d2400002e031b1f4"
- "b80000c6fafa4f3c1288798d624a247b5e2ffffffffffffffefe099241900004";
- const char *p521m1 =
- "1ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
- "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe";
-
- ctx = BN_CTX_new();
- if (!TEST_ptr(ctx))
- return 0;
-
- BN_CTX_start(ctx);
- x1 = BN_CTX_get(ctx);
- y1 = BN_CTX_get(ctx);
- z1 = BN_CTX_get(ctx);
- x2 = BN_CTX_get(ctx);
- y2 = BN_CTX_get(ctx);
- k = BN_CTX_get(ctx);
- if (!TEST_ptr(k))
- goto err;
-
- grp = EC_GROUP_new_by_curve_name(NID_secp521r1);
- P = EC_POINT_new(grp);
- Q = EC_POINT_new(grp);
- R = EC_POINT_new(grp);
- if (!TEST_ptr(grp) || !TEST_ptr(P) || !TEST_ptr(Q) || !TEST_ptr(R))
- goto err;
-
- if (!TEST_int_gt(BN_hex2bn(&x1, x1str), 0)
- || !TEST_int_gt(BN_hex2bn(&y1, p521m1), 0)
- || !TEST_int_gt(BN_hex2bn(&z1, p521m1), 0)
- || !TEST_int_gt(BN_hex2bn(&k, "02"), 0)
- || !TEST_true(EC_POINT_set_Jprojective_coordinates_GFp(grp, P, x1,
- y1, z1, ctx))
- || !TEST_true(EC_POINT_mul(grp, Q, NULL, P, k, ctx))
- || !TEST_true(EC_POINT_get_affine_coordinates(grp, Q, x1, y1, ctx))
- || !TEST_true(EC_POINT_dbl(grp, R, P, ctx))
- || !TEST_true(EC_POINT_get_affine_coordinates(grp, R, x2, y2, ctx)))
- goto err;
-
- if (!TEST_int_eq(BN_cmp(x1, x2), 0)
- || !TEST_int_eq(BN_cmp(y1, y2), 0))
- goto err;
-
- testresult = 1;
-
- err:
- BN_CTX_end(ctx);
- EC_POINT_free(P);
- EC_POINT_free(Q);
- EC_POINT_free(R);
- EC_GROUP_free(grp);
- BN_CTX_free(ctx);
-
- return testresult;
-}
# endif
static const unsigned char p521_named[] = {
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)
# endif
# ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
ADD_ALL_TESTS(nistp_single_test, OSSL_NELEM(nistp_tests_params));
- ADD_TEST(underflow_test);
# endif
ADD_ALL_TESTS(internal_curve_test, crv_len);
ADD_ALL_TESTS(internal_curve_test_method, crv_len);
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