Open Source C Cryptography Software for ChromeOS

Msieve is a C library implementing a suite of algorithms to factor large integers. It contains an implementation of the SIQS and GNFS algorithms; the latter has helped complete some of the largest public factorizations known

The OpenCA PKI Development Project is a collaborative effort to develop a robust, full-featured and Open Source out-of-the-box Certification Authority implementing the most used protocols with full-strength cryptography world-wide.

encrypt is a multi-platform, file encryption application. Binary packages are currently provided for Arch, Debian, Fedora, MS Windows, Android and OS X. For further details, including the latest source code, visit https://albinoloverats.net/projects/encrypt

[IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.

This is a library for easy accessing chip cards /smart cards via a chipcard reader. It currently works under Linux, FreeBSD and Windows. It is tested with Towitoko and Kobil readers.

ReHash is an easy-to-use console-based hash calculation tool written in C++. It supports many algorithms and output formats and it can be fully configured using some of the many command-line arguments which can be passed to the tool.

jPBC is a Java porting of the PBC Library, a Pairing-Based Cryptography Library written in C. It supports symmetric and asymmetric pairing. With jPBC it is really easy to use such a strong cryptographic primitive.

The wolfSSL embedded SSL library (formerly CyaSSL) is a lightweight, portable, C-language-based SSL/TLS library targeted at IoT, embedded, and RTOS environments primarily because of its size, speed, and feature set. It works seamlessly in desktop, enterprise, and cloud environments as well. wolfSSL supports industry standards up to the current TLS 1.2 and DTLS 1.2, is up to 20 times smaller than OpenSSL, offers a simple API, an OpenSSL compatibility layer, OCSP and CRL support, is backed by the robust wolfCrypt cryptography library, and much more. wolfSSL relies on the FIPS 140-2 validated wolfCrypt library for all cryptographic functionality. Visit http://wolfssl.com/wolfSSL/fips.html for more info!

TinyCrypt is a simple secure program for encrypting files. The core encryption code is only 76 lines of C code, based on the well known ARC4-D(768) algorithm.

Python wrapper around a small subset of the OpenSSL library. Includes: X509 Certificates, SSL Context objects, SSL Connection objects using Python sockets as transport layer. The Connection object wraps all the socket methods and can therefore be use

A package of Rijndael, Twofish and Serpent encryption algorithms implemented in x86 assembly. Meant to learn basics of assembly, learn about the algorithms or to be used in a C program.

GPG-Crypter is a graphical front-end to GnuPG(GPG) using the GTK3 toolkit and GPGME library. It has been developed to provide an easy access to GPG encryption and decryption. It supports encryption and decryption of text entered into the program's input fields. It also supports file encryption and decryption.

This is a simple ANSI-C implementation of Triple-DES (as described in NIST Special Publication 800-67.) This implementation also includes an 8-bit version that can be used in microcontrollers with memory constraints.

A self contained cross platform utility for encrypting (and decrypting) files using AES 256 (and SHA 256) for secure transportation or privacy.

RSA Public Key Crypotgraphy for Web Browsers. Use JavaScript to RSA-encrypt data that can only be decrypted on the server, and not by prying eyes. The poor man's SSL...

An API and test suite, or possibly an application unto itself, to manage keys and allow mail user agents (such as pine or mutt) to use encryption and authentication systems (such as S/MIME) via the services of external encryption suites (such as OpenSSL)

AUM is an extremely fast, small-state, cryptographically secure pseudo-random number generator and stream cipher. AUM exhibits uniform distribution, mixes rapidly, has no detected bias, and comes in three variants: AUM16, with an internal state array of 16+4 32-bit words; AUM32, with an internal state of 32+4 words; and AUM64 with a 64+4-word state. The former permit seeding with a key of up to 512 or 1024 bits, the latter with a 2048-bit key.

Ano (Anonymous Network Overlay) is a decentralized IP router based on relaying principle. In Ano all IP traffic is anonymized, including TCP, UDP, ICMP and DNS protocols. Each node acts as a relay and NAT for external traffic.

BEDBUG is a small, fast, cryptographically secure pseudo-random number generator (CSPRNG) and stream cipher. It exhibits uniform distribution, mixes rapidly (with worst-case avalanche better than 16-bits), has no detected bias, and comes in three variants: BEDBUG128, with an internal state array of 128+3 32-bit words; BEDBUG256, with an internal state of 256+3 words; and BEDBUG512 with a 512+3-word state. The former permit seeding with a key of up to 4096 or 8192 bits, the latter with a 16384-bit key. The BEDBUG generator itself is a mere 5 lines of code: Three rotations; two pseudo-random lookups. The default BEDBUG configuration alternates the rotation constants unpredictably. These four sets of three values differ between BEDBUG128, BEDBUG256 and BEDBUG512 and were selected, tuned and tested in each case for optimal avalanche, which is never less than 16.5 bits. BEDBUG has passed stringent industry-standard tests for randomness, including NIST and DIEHARD.

Portable, optimised implementation of Bruce Schneier's 64-bit symmetric block cipher, Blowfish. Includes support for ECB, CBC, CFB, OFB and CTR block cipher modes, weak key detection and parallelisation using OpenMP.

/!\ Developer(s) needed to optimize routines, multi-processing; any kind of help is accepted :)

Crypt is the developed based on the ASCII Table shift and it can customized based on the user requirements, right from the shifting order and the level of encryption or decryption. It can be integrated to any of the programming language with the custom build of the source code. It can secure from text file to binary code.

Cryptic is a cryptographic applications suite for encryption/decryption of data, calculating cryptographic hashes or message digests and securing user passwords using a master password in a password safe.

A collection of small utilities with a connection to cryptography and cryptanalysis. Written for efficiency and a small memory footprint.

Cryptools is a collection of tools to aid in the process of cryptanalysis.