We need to  establish connection with security between MMS client application in java(OPENMUC java client)  and MMS server (tls_server_example in mbedtls).The java client application uses  keystore.jks and truststore.jks (jks format ) instead of certificate in cer format.Is it possible to establish connection between OPENMUC java mms client and libiec61850 1.5 with mbedtls-2.16.6 ? . We have added the root.cer details (certificate in the sample mbedtls server program ) to  truststore.jks in client (openmuc java) and client1.cer details (client1 certificate in the sample mbedtls server program ) to keystore.jks .When trying to establish connection server hello  messages are completed ,but showing the following error: