Error while opening Framework Manager Data Source Connections

Error:

QE-DEF-0368 Unable to decrypt user name and password from the Content Store. Use Cognos Configuration to configure your reporting environment.

Environment : FM in Windows and Cognos 8 BI server in Solaris 9.

Solution :
Close Framework Manager and Cognos Configuration from machine.From the \crn\configuration folder on the Framework Manager installation, rename / deleted these directories:

1) csk
2) signkeypair
3) encryptkeypair

Open configuration manager and save the configuration.Launch Framework Manager and and it should be work fine.