-----BEGIN PRIVATE KEY----- MIG2AgEAMBAGByqGSM49AgEGBSuBBAAiBIGeMIGbAgEBBDAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAShZANiAAQTglHNUqyS mMHIqtl3Mh3rl+cJvQtMoKylXcitUdz8nRWJoVl+OlEg4e/WMcY+GDXKyuKYaaYu FjHoooGBq1ZhbcRdkYq8CfOrDmPPeSqk3O1zh743u6VpVJ8cArJw7Wc= -----END PRIVATE KEY-----

The key needs to mention which curve it is using.