Open Source C Encryption Algorithms - Page 2

One-time password generator for the Nokia N900. Supports OAUTH tokens (HOTP, TOTP) as well as the Mobile-OTP algorithm.

PalmOS MD5 algorithm Shared Library

A command-line to help encipher and decipher your password based on a simple algorithm. Java version provides GUI.

Pot of Gold is an open source implementation of Philippe Oechslin's "Faster Cryptanalytic Time-Memory Trade-Off" paper. It performs precomputation on a particular hash algorithm which can be later used to reverse certain hashes.

The PowerCiph Data Encryption Algorithm is a versatile, yet simplistic, encryption algorithm/protocol. The ultimate goal of the algorithm is simplicity, compactness, and a lack of prerequisites.

Real-Time Proactive Secret Sharing Library for RTAI is an implementation of the Shamir's secret sharing scheme and Herzberg's proactive secret sharing algorithm. The library uses a port of GNU GMP in order to make multiple precision arithmetic operatio

Rinecrypt uses the Gladman implentation of the AES algorithm Rijndael and a SHA256 hash among other things, to encrypt/decrypt a file with a user supplied passsword.

A simple but fully-featured implementation of the simple Caesar Cipher encryption algorithm, specifically 'rot13' - Caesar with a factor of 13. Supports file and tty input/output, internationalisation, and also includes a shared library.

Secure Hash Algorithm variant of the nist maintained Secure Hash Algorithm. this is a 1024 bit digest. Comments suggestions always welcome. Rick Removed old downloads as they are long outdated. The update is the last version I worked on. Algorithm is based on the SHA2 digest. I may work on an updated version for c++11

Semeir is a Encryption algorithm, Capable of block encryption. It is written in pure C. It is platform independent, and is promising for Embedded systems. Intended as an alternate, yet secure data encryption cipher.

Serpent_in_CBC_mode_for_microcontrollers is an open-source code that enables you to easily integrate the Serpent encryption algorithm in CBC mode to your project. Based on the work of https://github.com/peterferrie/serpent GitHub Page: https://github.com/Northstrix/Serpent_in_CBC_mode_for_microcontrollers

SysK allows to crypt text by using system informations calculate the algorithm. For each user,the crypt algo will be different. It's written in C language for Linux x86. The objective is to allows it to crypt streams, binaries and more.

A program that encrypts multiple files. It uses new encryption algorithms, such as a Three-Block Feistel chiper, ArchFurry's algorithm and a new hash function. Licensed under the ISC.

Cryptar is a cryptographic network backup program that is able to be very efficient with network resources by using an algorithm derived from the rsync algorithm. It uses SHA-1 hashes to verify (sign) its data and AES to encrypt it.

An application to encrypt files using Tiny Encryption Algorithm(TEA) with user defined keys of 4 to 16 character length

I needed a library of functions that enabled me to perform hash functions and symmetric cryptography. I chose MD5 initially but eventually chose SHA as the hashing algorithm due to concerns regarding the \'collision resistance\' of MD5 due to weakne

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).

svn checkout http://umcipher.googlecode.com/svn/trunk/ umcipher-read-only

Ramos - McCain - RSA. Cryptographic tool based on the widely-known RSA public-key algorithm.

sha is a file hashing utility that uses the NIST's SHA-1, SHA-256, SHA-384, & SHA-512 hash algorithms. It can be used for file integrity checking, remote file comparisons, etc. The portable algorithm implementations can be useful in other projects too.

v1pad is a command-line tool that encrypts and decrypts files using one-time-pad encryption. v1pad uses a virtual pad, meaning that the one-time pad is generated dynamically based on user input instead of being stored in a file. The name v1pad is an abbreviation for Virtual One-Time Pad.

xxHash is an extremely fast non-cryptographic hash algorithm, working at RAM speed limit. It is proposed in four flavors (XXH32, XXH64, XXH3_64bits and XXH3_128bits). The latest variant, XXH3, offers improved performance across the board, especially on small data. It successfully completes the SMHasher test suite which evaluates collision, dispersion and randomness qualities of hash functions. Code is highly portable, and hashes are identical across all platforms (little / big endian). Performance on large data is only one part of the picture. Hashing is also very useful in constructions like hash tables and bloom filters. In these use cases, it's frequent to hash a lot of small data (starting at a few bytes). Algorithm's performance can be very different for such scenarios, since parts of the algorithm, such as initialization or finalization, become fixed cost. The impact of branch misprediction also becomes much more present.

This xxteac program utilizes the "Corrected Block TEA" encryption/decryption algorithm by Roger Needham and David Wheeler. The original algorithm has been slightly modified to allow arbitary length passwords / password files.