diff options
Diffstat (limited to 'test/openssl/test_bn.rb')
| -rw-r--r-- | test/openssl/test_bn.rb | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/test/openssl/test_bn.rb b/test/openssl/test_bn.rb index 346602dada..ea88ff06ce 100644 --- a/test/openssl/test_bn.rb +++ b/test/openssl/test_bn.rb @@ -174,6 +174,14 @@ class OpenSSL::TestBN < OpenSSL::TestCase assert_equal(0, 59.to_bn.mod_sqr(59)) end + def test_mod_sqrt + assert_equal(4, 4.to_bn.mod_sqrt(5).mod_sqr(5)) + # One of 189484 or 326277 is returned as a square root of 2 (mod 515761). + assert_equal(2, 2.to_bn.mod_sqrt(515761).mod_sqr(515761)) + assert_equal(0, 5.to_bn.mod_sqrt(5)) + assert_raise(OpenSSL::BNError) { 3.to_bn.mod_sqrt(5) } + end + def test_mod_inverse assert_equal(2, 3.to_bn.mod_inverse(5)) assert_raise(OpenSSL::BNError) { 3.to_bn.mod_inverse(6) } |