SecureBlackbox (.NET edition) is the comprehensive component collection for network and document security. Unlike other components SecureBlackbox contains original implementation of all encryption algorithms and security protocols, used in the package, and doesn't depend on third-party libraries.

When you need to

secure standard Internet protocols like FTP, HTTP, SMTP, POP3, NNTP
implement secure file transfer using SFTP or custom protocols
perform PGP-compatible operations on files and text
encrypt and sign PDF and XML documents
create and parse MIME-compliant mail with security extensions (S/MIME and OpenPGP/MIME)
manage X.509 certificates and certificate storages easily