diff options
Diffstat (limited to 'test/openssl/test_pkey_ec.rb')
-rw-r--r-- | test/openssl/test_pkey_ec.rb | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/test/openssl/test_pkey_ec.rb b/test/openssl/test_pkey_ec.rb index c530ee06b0..0a2351d9c9 100644 --- a/test/openssl/test_pkey_ec.rb +++ b/test/openssl/test_pkey_ec.rb @@ -185,28 +185,33 @@ class OpenSSL::TestEC < OpenSSL::TestCase end def test_ec_point_mul - # y^2 = x^3 + 2x + 2 over F_17 - # generator is (5, 1) - group = OpenSSL::PKey::EC::Group.new(:GFp, 17, 2, 2) - gen = OpenSSL::PKey::EC::Point.new(group, OpenSSL::BN.new("040501", 16)) - group.set_generator(gen, 0, 0) - - # 3 * (6, 3) = (16, 13) - point_a = OpenSSL::PKey::EC::Point.new(group, OpenSSL::BN.new("040603", 16)) - result_a1 = point_a.mul(3.to_bn) - assert_equal("04100D", result_a1.to_bn.to_s(16)) - # 3 * (6, 3) + 3 * (5, 1) = (7, 6) - result_a2 = point_a.mul(3.to_bn, 3.to_bn) - assert_equal("040706", result_a2.to_bn.to_s(16)) - # 3 * point_a = 3 * (6, 3) = (16, 13) - result_b1 = point_a.mul([3.to_bn], []) - assert_equal("04100D", result_b1.to_bn.to_s(16)) - # 3 * point_a + 2 * point_a = 3 * (6, 3) + 2 * (6, 3) = (7, 11) - result_b1 = point_a.mul([3.to_bn, 2.to_bn], [point_a]) - assert_equal("04070B", result_b1.to_bn.to_s(16)) - # 3 * point_a + 5 * point_a.group.generator = 3 * (6, 3) + 5 * (5, 1) = (13, 10) - result_b1 = point_a.mul([3.to_bn], [], 5) - assert_equal("040D0A", result_b1.to_bn.to_s(16)) + begin + # y^2 = x^3 + 2x + 2 over F_17 + # generator is (5, 1) + group = OpenSSL::PKey::EC::Group.new(:GFp, 17, 2, 2) + gen = OpenSSL::PKey::EC::Point.new(group, OpenSSL::BN.new("040501", 16)) + group.set_generator(gen, 0, 0) + + # 3 * (6, 3) = (16, 13) + point_a = OpenSSL::PKey::EC::Point.new(group, OpenSSL::BN.new("040603", 16)) + result_a1 = point_a.mul(3.to_bn) + assert_equal("04100D", result_a1.to_bn.to_s(16)) + # 3 * (6, 3) + 3 * (5, 1) = (7, 6) + result_a2 = point_a.mul(3.to_bn, 3.to_bn) + assert_equal("040706", result_a2.to_bn.to_s(16)) + # 3 * point_a = 3 * (6, 3) = (16, 13) + result_b1 = point_a.mul([3.to_bn], []) + assert_equal("04100D", result_b1.to_bn.to_s(16)) + # 3 * point_a + 2 * point_a = 3 * (6, 3) + 2 * (6, 3) = (7, 11) + result_b1 = point_a.mul([3.to_bn, 2.to_bn], [point_a]) + assert_equal("04070B", result_b1.to_bn.to_s(16)) + # 3 * point_a + 5 * point_a.group.generator = 3 * (6, 3) + 5 * (5, 1) = (13, 10) + result_b1 = point_a.mul([3.to_bn], [], 5) + assert_equal("040D0A", result_b1.to_bn.to_s(16)) + rescue OpenSSL::PKey::EC::Group::Error + # CentOS patches OpenSSL to reject curves defined over Fp where p < 256 bits + raise if e.message !~ /unsupported field/ + end p256_key = OpenSSL::TestUtils::TEST_KEY_EC_P256V1 p256_g = p256_key.group |