Open Source C# Encryption Software for Linux

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

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.

DrCrypt, based on basic xor(exclusive or) encryption which is designed to be fast and reliable. Also DrCrypt supports 3 platform.(Java, .NET, Win32)

A library written in Visual C# for encrypting a text message into an image file, and decrypting an image file to get the text message using Rijndael Algorithm, RSA Algorithm, and LSB Substitution Algorithm.

A library written in Java and C# for crypt,encrypt and generate key pairs using the ElGamal algorithm.

First of all, let us understand the need for an encryption software. Just think of you sending a message of extreme confidentiality, someone else fetches it and goes through it. A breach in the security! We can’t allow that to happen. So, virtually every data send over a network is encrypted now-a-days. Let’s look at this now: Vdmbnld!`f`ho !Sdutsohof!whrhunsr!`oe!bnedsr-!une`x!H&l!fnhof!un!rinv!xnt!`o!houdsdruhof!unqhb!ui`u!hr-!inv!un!qsdq`sd!`o!dobsxquhno!rnguv`sd!trhof!B”!5/1!`oe!Vhoenvr!Gnslr/ Qsdsdpthrhudr!; 0/!Lhbsnrngu!Whrt`m!Rutehn/!) This is absolute fuzzy mess! That’s ‘encryption’ according to my software. Now feed this data back in the software you get usual form the plain English language. Put the same software at both terminals it may help in encoding and deciphering simultaneously

It is a simple password manager for your PC and Smartphone. It works like a text editor and uses a strong cryptography algorithm to generate the end file.

platform independent solution to encrypt files on a portable Device. Files will be encrypted with TripleDES and hold in an XML-File. No local Installation needed.

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.

RainDoll aims to be an implementation of a symmetric-encryption utility for desktop users written in C#/.NET and Windows Forms with two goals: security and simplicity. It uses cryptographic standards for security, and has a smart, compact interface.

XTEA (eXtended Tiny Encryption Algorithm) support for db4o open source object database. XTEA is a block cipher that operates on a 64-bit block size with a 128-bit key. An extremely tiny but very fast encryption algorithm (with cycles less than 32 rounds)