In 6x version of SiteMinder, if the policy server is not able to decrypt the persistent key using the policy store key, it will use empty persistent key to encrypt the data and will not fire an error message. An additional check has been added to the R12 version and it will return an error if it fails to decrypt the persistent key.
[ERROR] Failed to decrypt persistent key
In order to get the R6 like functionality in R6 i.e. Policy Server should allow using the empty persistent key a Registry Key has been introduced.
If this registry key is set, no check will occur and 6.x functionality will be maintained.
DWORD key: AllowEmptyEncKey