Based on the installation, not all providers may be available. The correct Key Store Provider is loaded during the installation. If you need specify a provider, select the appropriate option from the drop-down list:
IBMJCE - The IBM Java Cryptographic Extension is the export compliant variation of the SUN provider for IBM
IBMi5OSJSSE Provider - The IBM i5/OS Java Secure Socket Extension provides an RSA layer to the cryptology for IBM systems running the i5/OS
SUN - The classic Java cryptographic service
SUNJSSE - The Java Secure Socket Extension provides an RSA layer to the cryptology
SUNJCE - The Java Cryptographic Extension is the export compliant variation of the SUN provider
SUNMSCAPI - The Java implementation of the Microsoft Cryptography API
BC - The Bouncy Castle provider is a new export compliant set of algorithms for the Java Framework including RSA, DSA, x509