awesome-cryptography

Symmetric-key block cipher (or Triple Data Encryption Algorithm (TDEA or Triple DEA), which applies the Data Encryption Standard (DES) cipher algorithm three times to each data block

Symmetric-key block cipher algorithm and U.S. government standard for secure and classified data encryption and decryption (also known as Rijndael)

Symmetric-key block cipher, designed in 1993 by Bruce Schneier. Notable features of the design include key-dependent S-boxes and a highly complex key schedule

A method of exchanging cryptographic keys securely over a public channel. Unlike RSA, the Diffie-Hellman Key Exchange is not encryption, and is only a way for two parties to agree on a shared secret value. Since the keys generated are completely pseudo-random, DH key exchanges can provide forward secrecy ( )

Public-key cryptosystems based on the algebraic structure of elliptic curves over finite fields

One of the first practical public-key cryptosystems and is widely used for secure data transmission. In RSA, this asymmetry is based on the practical difficulty of factoring the product of two large prime numbers, the factoring problem

Transform encryption uses three mathematically related keys: one to encrypt plaintext to a recipient, a second to decrypt the ciphertext, and a third to transform ciphertext encrypted to one recipient so it can be decrypted by a different recipient

Widely used hash function producing a 128-bit hash value. MD5 was initially designed to be used as a cryptographic hash function, but it has been found to suffer from extensive vulnerabilities. It can still be used as a checksum to verify data integrity, but only against unintentional corruption

Cryptographic hash function designed by the NSA. SHA-1 produces a 160-bit hash value known as a message digest. SHA-1 is no longer considered secure against well-funded opponents

Set of hash functions designed by the NSA. SHA-256 and SHA-512 are novel hash functions computed with 32-bit and 64-bit words, respectively. They use different shift amounts and additive constants, but their structures are otherwise virtually identical, differing only in the number of rounds

Cryptographic hash function that produces a fixed-size output, typically 224, 256, 384, or 512 bits, from variable-size input data. It is part of the SHA-3 family of cryptographic algorithms designed to resist attacks from quantum computers and offers security properties such as pre-image resistance, second pre-image resistance, and collision resistance

This article is written for everybody who is interested in password security

The book covers many constructions for different tasks in cryptography

Introduction to modern cryptography

This cryptography classic provides you with a comprehensive survey of modern cryptography

Crypto 101 is an introductory course on cryptography

Learn to build cryptographic protocols that work in the real world

This book is intended as a reference for professional cryptographers

Introductory-level treatment of cryptography written from a modern, computer science perspective

The book about OpenSSL

Developer-friendly book on modern cryptography (hashes, MAC codes, symmetric and asymmetric ciphers, key exchange, elliptic curves, digital signatures) with lots of code examples

This book teaches you applied cryptographic techniques to understand and apply security at every level of your systems and applications

There is an extraordinary textbook written by Ross Anderson, professor of computer security at University of Cambridge

A Practical Introduction to Modern Encryption by Jean-Philippe Aumasson

This book is a digest of the history of cryptography, covering both ancient times, and newer cryptography methods. There are exercises at the end and the solution of those was rewarded with $10.000

This book provides a comprehensive guide to the various topics of the computer and internet security

Often overlooked, this book is a boon for beginners to the field. It contains plenty of exercises at the end of each chapter, aimed at reinforcing concepts and cementing ideas

This paper attempts to organize the existing literature of block-cipher cryptanalysis in a way that students can use to learn cryptanalytic techniques and ways to break algorithms, by Bruce Schneier

Cryptography is present in everyday life, from paying with a credit card to using the telephone. Learn all about making and breaking puzzles in computing

This talk will cover crypto vulnerabilities in widely-deployed systems and how the smallest oversight resulted in catastrophe

A practical oriented course in Cryptography by University of Maryland College Park

This course explains the inner workings of cryptographic primitives and how to correctly use them. Students will learn how to reason about the security of cryptographic constructions and how to apply this knowledge to real-world applications

This introductory course (Fall 2024) by Alfred Menezes covers the fundamental cryptographic primitives: symmetric-key encryption, hash functions, MACs, authenticated encryption, public-key encryption, signatures, key agreement, RSA, elliptic curve cryptography

The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems

This online course we will cover how cryptography is the cornerstone of security, and how through its use of different encryption methods, such as ciphers, and public or private keys, you can protect private or sensitive information from unauthorized access

An introductory but fast-paced undergraduate/beginning graduate course on cryptography, Used for Harvard CS 127

The course of cryptography by Khan Academy

Practical Aspects of Modern Cryptography, Winter 2006 University of Washington CSE

Introduction to Modern Cryptography, Using Cryptography in Practice and at Google, Proofs of Security and Security Definitions and A Special Topic in Cryptography

Awesome crypto-papers

– A curated list of cryptography papers, articles, tutorials and howtos

Awesome HE

– A curated list of homomorphic encryption libraries, software and resources

A list of TLS cipher suites and their security ratings

Cross-platform file encryption utility

blackbox

safely store secrets in Git/Mercurial/Subversion

certbot

Previously the Let's Encrypt Client, is EFF's tool to obtain certs from Let's Encrypt, and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol

Coherence

Cryptographic server for modern web apps

cryptomator

Multi-platform transparent client-side encryption of your files in the cloud

API based personal data or PII storage service built to comply with GDPR and CCPA

Complete and free implementation of the OpenPGP standard. It allows to encrypt and sign your data and communication, features a versatile key management system. GnuPG is a command line tool with features for easy integration with other applications

ironssh

End-to-end encrypt transferred files using sftp/scp and selectively share with others. Automatic key management works with any SSH server. Encrypted files are gpg compatible

Nipe

Nipe is a script to make Tor Network your default gateway

sops

sops is an editor of encrypted files that supports YAML, JSON and BINARY formats and encrypts with AWS KMS, GCP KMS, Azure Key Vault and PGP

End-to-end encrypted sharing via cloud repository, secure recovery through a viral network of friends in case of key loss

git-crypt

Transparent file encryption in git

Bash-tool to store your private data inside a git repository

A simple web tool to play and learn basic concepts of cryptography like, hashing, symmetric, asymmetric, zkp etc

crypto-algorithms

Basic implementations of standard cryptography algorithms, like AES and SHA-1

Cryptographic library developed as a separated module of GnuPG

libkcapi

Linux Kernel Crypto API User Space Interface Library

libsodium

Modern and easy-to-use crypto library

libtomcrypt

Fairly comprehensive, modular and portable cryptographic toolkit

libVES.c

End-to-end encrypted sharing via cloud repository, secure recovery through a viral network of friends in case of key loss

milagro-crypto-c

Small, self-contained and fast open source crypto library. It supports RSA, ECDH, ECIES, ECDSA, AES-GCM, SHA2, SHA3 and Pairing-Based Cryptography

small, portable, easy to use crypto library inspired by libsodium and TweetNaCl

High-speed library for network communication, encryption, decryption, signatures, etc

nettle

is a cryptographic library that is designed to fit easily in more or less any context: In crypto toolkits for object-oriented languages (C++, Python, Pike, ...), in applications like LSH or GNUPG, or even in kernel space

OpenSSL

TLS/SSL and crypto library

PolarSSL makes it trivially easy for developers to include cryptographic and SSL/TLS capabilities in their (embedded) products, facilitating this functionality with a minimal coding footprint

RHash

Great utility for computing hash sums

themis

High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption). Ported on many languages and platforms, suitable for client-server infastructures

tiny-AES128-C

Small portable AES128 in C

wolfSSL

Small, fast, portable implementation of TLS/SSL for embedded devices to the cloud

XKCP

— is a repository that gathers different free and open-source implementations of the cryptographic schemes defined by the Keccak team

xxHash

Extremely fast hash algorithm

=nil; Crypto3

Modern Cryptography Suite in C++17 (complete applied cryptography suite starting with block ciphers and ending with threshold cryptography, zk proof systems, etc)

Cryptography library written in

cryptopp

Crypto++ Library is a free C++ class library of cryptographic schemes

HElib

Software library that implements homomorphic encryption (HE)

Low-level cryptographic library

s2n

Implementation of the TLS/SSL protocols

All-purpose cryptographic library

Secure cryptographic library, port of libsodium for .NET

The .NET Framework implementations of many standard cryptographic algorithms

PCLCrypto

Provides cryptographic APIs over algorithms implemented by the platform, including exposing them to portable libraries

SecurityDriven.Inferno

.NET crypto done right

StreamCryptor

Stream encryption & decryption with libsodium and protobuf

Cryptographic Api

clj-crypto

Wrapper for Bouncy Castle

pandect

Fast and easy-to-use Message Digest, Checksum and HMAC library for Clojure

secrets.clj

A Clojure library designed to generate cryptographically strong random numbers suitable for managing data such as passwords, account authentication, security tokens, and related secrets

crypto-shortcuts

Collection of common cryptography functions

Collection of common crypto shortcuts

trivial-ssh

SSH client library for Common Lisp (Built on libssh2)

DelphiEncryptionCompendium

Cryptographic library for Delphi

LockBox 3 is a Delphi library for cryptography

SynCrypto

Fast cryptographic routines (hashing and cypher), implementing AES, XOR, RC4, ADLER32, MD5, SHA1, SHA256 algorithms, optimized for speed

TForge is open-source crypto library written in Delphi, compatible with FPC

cipher

Elixir crypto library to encrypt/decrypt arbitrary binaries

cloak

Cloak makes it easy to use encryption with Ecto

comeonin

Password authorization (bcrypt) library for Elixir

elixir-rsa

cryptography wrapper for Elixir

elixir_tea

TEA implementation in Elixir

ex_crypto

Elixir wrapper for Erlang and modules. Provides sensible defaults for many crypto functions to make them easier to use

exgpg

Use gpg from Elixir

pot

Erlang library for generating one time passwords compatible with Google Authenticator

siphash-elixir

Elixir implementation of the SipHash hash family

Functions for computation of message digests, and functions for encryption and decryption

Provides functions to handle public-key infrastructure

Official Website Resources

dkeyczar

Port of Google's Keyczar cryptography library to Go

gocrypto

Example source code for the Practical Crypto with Go book

goThemis

Go wrapper on Themis. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

kyber

Advanced crypto library for the Go language

Collaborative Hackage list

Official Website of Haskell

cryptol

The Language of Cryptography

Haskell repository of cryptographic primitives

HsOpenSSL

OpenSSL binding for Haskel

scrypt

Haskell bindings to Colin Percival's scrypt implementation

Haxe Cryptography Library

asmCrypto

JavaScript implementation of popular cryptographic utilities with performance in mind

Native implementation of bcrypt for Node.js

cifre

Fast crypto toolkit for modern client-side JavaScript

closure-library

Google's common JavaScript library

cryptico

Easy-to-use encryption system utilizing RSA and AES for JavaScript

crypto-js

JavaScript library of crypto standards

cryptojs

Provide standard and secure cryptographic algorithms for Node.js

forge

Native implementation of TLS in JavaScript and tools to write crypto-based and network-heavy webapps

Transform encryption library, a variant of proxy re-encryption, for encrypting to users or groups, and easily adding strong data controls to Node.js apps

Transform encryption library, a variant of proxy re-encryption, for easily managing end-to-end encryption securely in the browser

javascript-crypto-library

JavaScript Crypto Library provides web developers with an extensive and efficient set of cryptographic functions

js-nacl

Pure-JavaScript High-level API to Emscripten-compiled libsodium routines

jsencrypt

JavaScript library to perform OpenSSL RSA Encryption, Decryption, and Key Generation

JShashes

Fast and dependency-free cryptographic hashing library for Node.js and browsers (supports MD5, SHA1, SHA256, SHA512, RIPEMD, HMAC)

jsrsasign

The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation

jsThemis

JavaScript wrapper on Themis. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

libsodium.js

libsodium compiled to pure JavaScript, with convenient wrappers

libVES.js

End-to-end encrypted sharing via cloud repository, secure recovery through a viral network of friends in case of key loss

milagro-crypto-js

MCJS is a standards compliant JavaScript cryptographic library with no external dependencies except for the random seed source. Compatible for Node.js and browser. It supports RSA, ECDH, ECIES, ECDSA, AES-GCM, SHA2, SHA3, Pairing-Based Cryptography and New Hope

noble-ciphers

— cryptographic ciphers, including AES-SIV, Salsa20, ChaCha, Poly1305 and FF1

noble-curves

— elliptic curve cryptography, including Weierstrass, Edwards, Montgomery curves, pairings, hash-to-curve, poseidon hash, schnorr, secp256k1, ed25519, ed448, p521, bn254, bls12-381 and others. Also 4kb ,

noble-hashes

— SHA2, SHA3, RIPEMD, BLAKE2/3, HMAC, HKDF, PBKDF2 & Scrypt

node.bcrypt.js

bcrypt for Node.js

OpenPGP.js

OpenPGP implementation for JavaScript

PolyCrypt

Pure JS implementation of the WebCrypto API

rusha

High-performance pure-javascript SHA1 implementation suitable for large binary data, reaching up to half the native speed

sjcl

Stanford JavaScript Crypto Library

TweetNaCl.js

A port of TweetNaCl / NaCl for JavaScript for modern browsers and Node.js

URSA

RSA public/private key OpenSSL bindings for Node

Performs authentication, authorization, cryptography and session management

All-purpose cryptographic library. JCA provider, wide range of functions from basic helpers to PGP/SMIME operations

Powerful toolkit for the Java Cryptography Architecture

GDH

Generalized Diffie-Hellman key exchange Java library for multiple parties built on top of the Vert.x framework

Google Tink

A small crypto library that provides a safe, simple, agile and fast way to accomplish some common crypto tasks

Java Themis

Java/Android wrapper on Themis. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

jBCrypt is an implementation the OpenBSD Blowfish password hashing algorithm

Keycloak

Open Source Identity and Access Management For Modern Applications and Services

pac4j

Security engine

Password4j

A Java user-friendly cryptographic library for hashing and checking passwords with different Key derivation functions (KDFs) and Cryptographic hash functions (CHFs)

Java binding to the Networking and Cryptography (NaCl) library with the awesomeness of libsodium

scrypt

Pure Java implementation of the scrypt key derivation function and a JNI interface to the C implementations, including the SSE2 optimized version

securitybuilder

Fluent Builder API for JCA/JSSE objects

Crypto.jl

Library that wraps OpenSSL, but also has pure Julia implementations for reference

MbedTLS.jl

Wrapper around the mbed TLS and cryptography C libary

Nettle.jl

Julia wrapper around nettle cryptographic hashing/ encryption library providing MD5, SHA1, SHA2 hashing and HMAC functionality, as well as AES encryption/decryption

SHA.jl

Performant, 100% native-julia SHA1, SHA2-{224,256,384,512} implementation

lua-lockbox

Collection of cryptographic primitives written in pure Lua

LuaCrypto

Lua bindings to OpenSSL

Digestif

is a toolbox that implements various cryptographic primitives in C and OCaml

ocaml-tls

TLS in pure OCaml

CocoaSecurity

AES, MD5, SHA1, SHA224, SHA256, SHA384, SHA512, Base64, Hex

ObjC Themis

ObjC wrapper on Themis for iOS and macOS. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

ObjectivePGP

ObjectivePGP is an implementation of OpenPGP protocol for iOS and macOS. OpenPGP is the most widely used email encryption standard

RNCryptor

CCCryptor (AES encryption) wrappers for iOS and Mac

Simple library for encryption using

libsodium-laravel

Laravel Package Abstraction using

PHP Encryption

Library for encrypting data with a key or password in PHP

PHP Themis

PHP wrapper on Themis. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

TCrypto

TCrypto is a simple and flexible PHP 5.3+ in-memory key-value storage library

bcrypt

Modern password hashing for your software and your servers

charm

Framework for rapidly prototyping cryptosystems

Crypto-Vinaigrette

Quantum resistant asymmetric key generation tool for digital signatures

Python library which exposes cryptographic recipes and primitives

Pure python implementation of cryptographic algorithms and applications

django-cryptography

Easily encrypt data in Django

ecdsa

An easy-to-use implementation of ECC with support for ECDSA and ECDH

hashids

Implementation of in Python

Python implementation of the SSHv2 protocol, providing both client and server functionality

Privy

An easy, fast lib to correctly password-protect your data

pycryptodome

Self-contained Python package of low-level cryptographic primitives

PyElliptic

Python OpenSSL wrapper. For modern cryptography with ECC, AES, HMAC, Blowfish

pynacl

Python binding to the Networking and Cryptography (NaCl) library

pythemis

Python wrapper on Themis. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

rscrypt

Package for a collection of scrypt cryptographic functions

bcrypt-ruby

Ruby binding for the OpenBSD bcrypt() password hashing algorithm, allowing you to easily store a secure hash of your users' passwords

RbNaCl

Ruby binding to the Networking and Cryptography (NaCl) library

Ruby Themis

Ruby wrapper on Themis. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

AEADs

Authenticated Encryption with Associated Data Algorithms: high-level encryption ciphers

BLAKE3

is official Rust and C implementations of the BLAKE3 cryptographic hash function

botan-rs

Botan bindings for Rust

cryptoballot

Cryptographically secure online voting

Fast yet safe mid-level API for ECC, Bulletproofs, and more

dryoc

A pure-Rust, general purpose crypto library that implements libsodium primitives

elliptic-curves

Collection of pure Rust elliptic curve implementations: NIST P-224, P-256, P-384, P-521, secp256k1, SM2

formats

Cryptography-related format encoders/decoders: DER, PEM, PKCS, PKIX

hashes

Collection of cryptographic hash functions written in pure Rust

mundane

is a Rust cryptography library backed by BoringSSL that is difficult to misuse, ergonomic, and performant

ockam

is a Rust library for end-to-end encryption and mutual authentication

octavo

Highly modular & configurable hash & crypto library

orion

is a cryptography library written in pure Rust. It aims to provide easy and usable crypto while trying to minimize the use of unsafe code

password-hashes

Collection of password hashing algorithms, otherwise known as password-based key derivation functions, written in pure Rust

proteus

Axolotl protocol implementation, without header keys, in Rust

rage

is a simple, modern, and secure file encryption tool, using the age format

recrypt

A pure-Rust library that implements cryptographic primitives for building a multi-hop Proxy Re-encryption scheme, known as Transform Encryption

ring

Safe, fast, small crypto using Rust & BoringSSL's cryptography primitives

ronkathon

Educational, mathematically transparent, well documentated cryptography in rust

rust-crypto

Mostly pure-Rust implementation of various cryptographic algorithms

rust-openssl

OpenSSL bindings for Rust

rustls

Rustls is a new, modern TLS library written in Rust

signatures

Cryptographic signature algorithms: DSA, ECDSA, Ed25519

snow

Pure Rust implementation of Trevor Perrin’s

sodiumoxide

Sodium Oxide: Fast cryptographic library for Rust (bindings to libsodium)

suruga

TLS 1.2 implementation in Rust

webpki

Web PKI TLS X.509 certificate validation in Rust

recrypt

Transform encryption library for Scala

scrypto

Cryptographic primitives for Scala

tsec

A type-safe, functional, general purpose security and cryptography library

chicken-sodium

Bindings to libsodium crypto library for Chicken Scheme

Useful cryptographic primitives for Chicken Scheme

GnuTLS bindings for GNU Guile

guile-ssh

libssh bindings for GNU Guile

Motley assortment of cryptographic primitives, OpenSSH, DNS

CryptoSwift

Crypto related functions and helpers for Swift implemented in Swift programming language

IDZSwiftCommonCrypto

Wrapper for Apple's library written in Swift

OpenSSL

Swift OpenSSL for macOS and Linux

SweetHMAC

Tiny and easy to use Swift class to encrypt strings using HMAC algorithms

Swift-Sodium

Swift interface to the Sodium library for common crypto operations for iOS and macOS

Elegant crypto toolkit in Swift

SwiftThemis

Swift wrapper on Themis for iOS and macOS. High level crypto library for storing data (AES), secure messaging (ECC + ECDSA / RSA + PSS + PKCS#7) and session-oriented, forward secrecy data exchange (ECDH key agreement, ECC & AES encryption)

Some random thoughts about crypto

Official blog for the University of Bristol cryptography research group. It's a group blog, primarily targeted towards cryptographers and crypto students

WebCrypto Blog Posts

Nate Lawson and his co-authors write on a variety of topics including hardware implementation, cryptographic timing attacks, DRM, and the Commodore 64

Covers topics on encryption, data control, privacy, and security

One of the oldest and most famous security blogs. Bruce covers topics from block cipher cryptanalysis to airport security

"Cryptography" is a low-noise moderated mailing list devoted to cryptographic technology and its political impact

Forums for discussing modern cryptographic practice

List for general discussion of cryptography, particularly the technical aspects

Easy to use tools for analysis and code-breaking of the most frequent ciphers, including Vigenère, Beaufort, Keyed Caesar, Transposition Ciphers, etc

is a set of cryptography related tools

Great variety of ciphers, encryption methods and analysis tools are introduced, often together with illustrated examples

a web app for encryption, encoding, compression, and data analysis

Factordb.com is tool used to store known factorizations of any number

Keybase maps your identity to your public keys, and vice versa

A lot ready to use best practice examples for securing web servers and more

A dashboard of most active cryptocurrencies discussed on Reddit

Cryptography Stack Exchange is a question and answer site for software developers, mathematicians and others interested in cryptography

A platform with lots of interactive cryptography challenges, similar to Cryptopals

A series of applied cryptography challenges, starting from very basic challenges, such as hex to base 64 challanges, and gradually increasing the difficulty up to abstract algebra

simple form that allows to calculate elliptic curve public keys and signatures. Features include ability to create custom curves and different signature types

An Overview of Cryptography

The International Association for Cryptologic Research is a non-profit scientific organization whose purpose is to further research in cryptology and related fields

Dedicated to helping people understand how and why the cryptographic systems they use everyday without realizing work to secure and protect their privacy

This subreddit is intended for links and discussions surrounding the theory and practice of strong cryptography

A collection of block diagrams of common cryptographic functions drawn in TikZ to be used in research papers and presentations written in LaTeX

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryption