With ZIPBlackbox you can complete your applications with compression and decompression of ZIP archives, with optional strong (AES256) encryption and certificate-based decryption and signature verification. ZIPBlackbox offers the following key features:

* Support for ZIP64 archives with files larger than 4Gb;
* Traditional ZIP encryption and strong WinZIP-compatible AES encryption (AES128, AES192, AES256);
* Support for PKWare strong encryption specification using DES, 3DES, RC2, Blowfish and Twofish algorithms;
* Decryption of ZIP archives, encrypted using PKI-based encryption and X.509 certificates;
* Verification of ZIP archives signed using PKI-based digital signing and X.509 certificates;
* support for Cryptocards and USB Crypto Tokens

This is .NET edition, which can be integrated into Visual Studio 2010, 2008, 2005, 2003, Delphi Prism. It requires .NET Framework 4.0, 3.5, 3.0, 2.0 or 1.1, Silverlight (4.0 or 3.0), Mono (2.0 or 1.0) or .NET CF (3.5, 2.0, 1.0).