Repository Index

General purpose TLS and crypto library

• cryptography
• openssl
• encryption
• tls

JavaScript library of crypto standards.

A modern, portable, easy to use crypto library.

• crypto
• cryptography
• c
• zig-package

CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift

• swift
• aes
• cryptography
• commoncrypto

[DEPRECATED] Stanford Javascript Crypto Library

An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.

• tls
• ssl
• crypto
• cryptography-library

A tiny (18.5 kB gzip), zero-dependency, Javascript library to perform OpenSSL RSA Encryption, Decryption, and Key Generation.

PHP Secure Communications Library

• php
• ssh
• sftp
• rsa

free C++ class library of cryptographic schemes

• cryptography
• crypto
• c-plus-plus

The password hash Argon2, winner of PHC

A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps

• crypto
• cryptography
• x509
• message-digest

CAUTION: END OF SUPPORT ON 14 AUG 2026. The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES and JSON Web Signature/Token in pure JavaScript.

• asn1
• x509
• certificate
• crl

A self-contained cryptographic library for Python

• cryptography
• security
• python

The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.

• ssl
• tls
• cryptography
• security

Optimized C library for EC operations on curve secp256k1

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

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

• cryptography-library
• cryptography
• security
• golang

Port of TweetNaCl cryptographic library to JavaScript

• crypto
• javascript
• authentication
• signature

LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.

• libtomcrypt
• cryptography
• c
• encryption

Modern encryption for Ruby and Rails

• encryption
• activerecord
• activestorage
• carrierwave

Modern(-ish) password hashing for your software and your servers

• python

An ActionScript 3 Library that contains a number of classes and utilities for working with ActionScript? 3. These include classes for MD5 and SHA 1 hashing, Image encoders, and JSON serialization as well as general String, Number and Date APIs.

A (mostly) pure-Rust implementation of various cryptographic algorithms.

Library and command line tool to detect SHA-1 collision in a file