Top 822 cryptography open source projects

A decentralized P2P networking stack written in Go.

.NET Standard 1.3 implementation of the Noise Protocol Framework (revision 33 of the spec)

A pure Javascript Implementation of Verifiable Random Functions

🛡 I2P: End-to-End encrypted and anonymous Internet

Bash glue to encrypt and hide files

Chromium с поддержкой алгоритмов ГОСТ

en-crypt, de-crypt, si-gn, ve-rify - smime, pdf, xades and plain files in pure python

Zero-knowledge virtual machine written in Rust

A simple decentralized peer-to-peer ledger implementation

A collection of common (interesting) cryptographic mistakes.

🌞 Stellar wallet. Secure and user-friendly.

Rust implementation of multi-party Schnorr signatures over elliptic curves.

🔑 Hashing (BCrypt, SHA2, HMAC), encryption (AES), public-key (RSA), and random data generation.

A really tiny crypto library.

List of resources about foundational knowledge for programmers (supposed to last a few decades)

Open Source Your Password (Mismanagement)!

SHA3 for JavaScript - The Keccak family of hash algorithms

Stream encryption & decryption with libsodium and protobuf

A repository that aims to provide tools for cryptography and cryptanalysis

Ethereum Virtual Machine (EVM) implementation

Encrypted Python Execution

wolfBoot is a portable, OS-agnostic, secure bootloader for microcontrollers, supporting firmware authentication and firmware update mechanisms.

yubikey-agent is a seamless ssh-agent for YubiKeys.

Portable OpenSSH

A complete overhaul of the Golang wrapper for libsodium

Cryptographic filesystem for the cloud

Cloudflare's RPKI Toolbox

Google Cloud Platform IOT Core Examples

A CONIKS implementation in Golang

Android cryptography library with SecureRandom patches.

Reference mobile app for BrightID

Haskell JOSE and JWT library

a pure python Java KeyStore file parser, including private key decryption

Steganography for imageboards

Pure Java implementation of Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud. Android ready. Online playground available.

Collection of papers in the field of distributed systems, game theory, cryptography, cryptoeconomics, zero knowledge

Decentralize your secrets!

A repository for All algorithms implemented in Javascript (for educational purposes only)

HACL*, a formally verified cryptographic library written in F*

Anonymous web chat server, built on top of Themis/WebThemis

webcrypto-liner is a polyfill that let's down-level User Agents (like IE/Edge) use libraries that depend on WebCrypto. (Keywords: Javascript, WebCrypto, Shim, Polyfill)

i2pd browser bundle

A list of resources in different fields of Computer Science (multiple languages)

PortableSigner - A Commandline and GUI Tool to digital sign PDF files with X.509 certificates

Solutions to Matasano crypto challenges in Python 3.

dude, is my code constant time?

A modern, portable, easy to use crypto library.

A Javascript implementation of SipHash-2-4

SECCURE compatible Elliptic Curve cryptography in Python

port of the paramiko library from python->javascript

TokenScript schema, specs and paper

A minimal portable Zcash z-address generator for offline / paper wallets

🏴‍☠️ Tools for pentesting, CTFs & wargames. 🏴‍☠️

Argon2 password hashing package for go with constant time hash comparison

A FRamework for Efficient Secure COmputation

Every cryptographic primitive needed to work on Ethereum, for the browser and Node.js

💎 Beamsplitter - A new (possibly universal) hash that passes SMHasher. Built mainly with a random 10x64 S-box. Also in NodeJS

Nayuki's implementation of cryptographic primitives used in Bitcoin.

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.