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

[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

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

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

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.

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

SImple, common-sense Bitcoin-themed Python ECC library

Mundane is a Rust cryptography library backed by BoringSSL that is difficult to misuse, ergonomic, and performant (in that order).

• cryptography
• rust
• boringssl

A lightweight, secure, easy-to-use crypto library suitable for constrained environments.

• crypto
• embedded-systems
• cryptography
• embedded

ObjectivePGP is an open-source library for iOS and macOS that provides developers with tools for implementing OpenPGP encryption and decryption, digital signing, and signature verification in their applications, thereby enhancing security and data integrity.

• openpgp
• objective-c
• encryption
• pgp

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

• hashing-algorithm
• javascript
• hmac
• hexadecimal

Advanced crypto library for the Go language

• crypto-library
• elliptic-curves
• go

MIRACL Cryptographic SDK: Multiprecision Integer and Rational Arithmetic Cryptographic Library is a C software library that is widely regarded by developers as the gold standard open source SDK for elliptic curve cryptography (ECC).

Elixir encryption library designed for Ecto

• elixir
• encryption
• ecto
• hex