HashSum is a .NET port from GNU's md5sum and sha1sum. It supports: hash algorithm selection between MD5 and SHA1 (more could be added later) and compatibility between HashSum and GNU's checksum file format
CryptDS is cross platform file encryption software with AES-128 encryption based on Open Source library Crypt++. CryptDS has a wxWidgets GUI interface.
openSMS4 was created by tao.tang316 and implemented in C, which is an open source implementation of the SMS4 encryption algorithm (including simple checking codes).
Tool for encrypting files using blowfish, aes, des or cast5,
File hashing with md5, sha and ripemd160,
compresssion with gzip, and a nice user interface.
Created using C++ with Qt framework, depends on QCA third-part Qt Library and OpenSSL.
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This library provides two operations: one to wrap key data, and another to unwrap the key data. This code also includes a fairly comprehensive unit test library which ensures the implementation is verified against the vectors provided in RFC 3394.
The IEEE 1619 Committee open-source reference implementations of encryption algorithms, plus testing and certification suites, for each encryption algorithm included in the standard.
RC4.NET is a library that adds support for encrypting/decrypting using the symmetric RC4 algorithm in the .NET environment. The library is written in C# language, and performs equally well on both the Microsoft CLR and Mono platform.