1 files changed, 23 insertions, 0 deletions
diff --git a/test/openssl/test_pkey_ec.rb b/test/openssl/test_pkey_ec.rb
index ffe5a94e5b..23c6c4d421 100644
--- a/test/openssl/test_pkey_ec.rb
+++ b/test/openssl/test_pkey_ec.rb
@@ -199,6 +199,29 @@ class OpenSSL::TestEC < OpenSSL::PKeyTestCase
     assert_equal pem, p256.export
   end
 
+  def test_ECPrivateKey_with_parameters
+    p256 = Fixtures.pkey("p256")
+
+    # The format used by "openssl ecparam -name prime256v1 -genkey -outform PEM"
+    #
+    # "EC PARAMETERS" block should be ignored if it is followed by an
+    # "EC PRIVATE KEY" block
+    in_pem = <<~EOF
+    -----BEGIN EC PARAMETERS-----
+    BggqhkjOPQMBBw==
+    -----END EC PARAMETERS-----
+    -----BEGIN EC PRIVATE KEY-----
+    MHcCAQEEIID49FDqcf1O1eO8saTgG70UbXQw9Fqwseliit2aWhH1oAoGCCqGSM49
+    AwEHoUQDQgAEFglk2c+oVUIKQ64eZG9bhLNPWB7lSZ/ArK41eGy5wAzU/0G51Xtt
+    CeBUl+MahZtn9fO1JKdF4qJmS39dXnpENg==
+    -----END EC PRIVATE KEY-----
+    EOF
+
+    key = OpenSSL::PKey::EC.new(in_pem)
+    assert_same_ec p256, key
+    assert_equal p256.to_der, key.to_der
+  end
+
   def test_ECPrivateKey_encrypted
     p256 = Fixtures.pkey("p256")
     # key = abcdef