Hi Subbu,
Please refer to the attached guide delivered in the SAP KBA below:
2185235 - Using SNC Client Encryption (SCE) for Encrypting SAP GUI Connection with CommonCryptoLib
The document provides a step-by-step of how to properly configure SNC Client Encryption for encrypting your SAP GUI connection.
This product delivers SNC without SSO as explained by the other experts in this thread.
Cheers,
Filipe Santos