Unable to decrypt the encrypted value set for "DSN"

Error name		Unable to decrypt the encrypted value set for "DSN"
Parts		Reporting Services
Error description		The following error occurs when deploying Server Reports in vs2005/bids -- In this case, the following error occurs when you use a URL to access the Report Server -- A similar error occurs when you access the report manager --
Error Information	Chinese	The encrypted value set in "DSN" cannot be decrypted. The encrypted value set in "DSN" cannot be decrypted. (Rsfailedtodecryptconfiginformation ).
	English	The encrypted value for configuration setting DSN cannot be decrypted. The encrypted value for configuration setting DSN cannot be decrypted. (rsfailedtodecryptconfiginformation ).
Possible causes		The reportserver configuration file (XML format) "<DSN>" section is modified.
Solution		"Start Menu" → "All Programs" → "Microsoft SQL Server 2005" → "configuration tool" → "reporting services configuration" can be reconfigured once (all marked as Red Cross options, pay special attention to the "encryption key" tab ).
Key word		DSN, rsfailedtodecryptconfiginformation, cannot decrypt the encrypted value set by "DSN"
Secondary note		The Report Server configuration file is named rsreportserver. config, which is located in \ Program Files \ Microsoft SQL Server \ mssql.3 \ Reporting Services \ reportserver. Reference URL -- 1. http://msdn2.microsoft.com/en-us/library/ms157273.aspx 2. http://msdn2.microsoft.com/en-us/library/ms157273.aspx

Thanks to Dr. Zhang for his article .....