SAP jConnect provides Secure Sockets Layer (SSL) and Kerberos options for securing client-server communications
SSL – use SSL to encrypt communications, including the login exchange, between client and server applications.
Kerberos – use Kerberos to authenticate Java applications or users of Java applications to SAP Adaptive Server without sending user names or passwords over a network. Also use Kerberos to set up a single sign-on (SSO) environment and provide mutual authentication between the digital identity of a Java application and that of SAP Adaptive Server Enterprise.
You can Kerberos and SSL together, providing the advantage of both SSO and encryption of data transferred between client and server applications.