1)   PGPBlackbox (.NET) 4.3 PGPBlackbox.NET is a comprehensive collection of managed components that add PGP support to your .NET Framework applications. Data encryption, signing, compression and key generation, revocation, keyring management operations are supported. 2)   PGPBlackbox (VCL) 4.3 PGPBlackbox (VCL Edition) is a comprehensive collection of native components that add PGP support to your Delphi / Kylix applications. Data encryption, signing, compression and key generation, revocation, keyring management operations are supported.