Provide the option to encrypt internode communication. The initial thought is to use JSSE (http://download.oracle.com/javase/6/docs/technotes/guides/security/jsse/JSSERefGuide.html) to wrap the existing ServerSocket & Sockets. This will only be an optional configuration and not enabled by default. The defaults would be TLS V1, RSA 1024-bit keys for handshake and SSL_RSA_WITH_RC4_128_MD5 as the cipher suite. Although this can be made configurable if the need arises.