Cryptographic Libraries

9,554

1,667

$49M

Netty

Netty project - an event-driven asynchronous network application framework

5,815

1,095

$16M

pyca/cryptography

A Python cryptography library providing cryptographic recipes and primitives to developers. It includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, message digests, and key derivation functions.

3,023

929

$11M

node.bcrypt.js

bcrypt for NodeJs

2,438

719

$72K

Mbed TLS

Mbed TLS is an open source, portable, easy to use, readable and flexible SSL/TLS library that implements cryptographic primitives and X.509 certificate handling. It provides a comprehensive implementation of the TLS and SSL protocols, along with various cryptographic algorithms and helper functions.

2,024

439

$3.7M

Bouncy Castle Crypto Package for Java

Bouncy Castle is a cryptography library providing implementations of cryptographic algorithms and protocols for Java. It includes support for encryption/decryption, digital signatures, certificate handling, TLS, and other security-related functionality.

1,764

322

$38M

Open Quantum Safe

Open Quantum Safe (OQS) is a project focused on developing and prototyping quantum-resistant cryptographic algorithms and protocols. It provides open-source libraries, tools, and implementations to help integrate post-quantum cryptography into applications and protocols, preparing them for potential threats from quantum computers.

1,750

373

$142M

ring

An experiment.

1,642

587

$3.6M

OpenSC

OpenSC is an open-source project that provides tools and libraries for working with smart cards and security tokens. It enables secure authentication, digital signatures, and encryption using smart cards through a standardized PKCS#11 interface and native APIs.

1,588

356

$8.4M

phpseclib

phpseclib is a pure PHP implementation of various cryptographic and security protocols, providing secure communications and data encryption capabilities. It includes implementations of SSH, SFTP, X.509, RSA, AES and other cryptographic standards, designed to be a secure and portable alternative to OpenSSL.

1,374

308

$2.2M

Forge

Forge is a native implementation of TLS (and various other cryptographic tools) in JavaScript that provides a comprehensive set of cryptographic functions for use in web applications. It supports digital signatures, encryption, message digests, and various other cryptographic operations.

1,170

344

$1.3M

Pion WebRTC

Pion WebRTC is a pure Go implementation of the WebRTC API that enables real-time communication capabilities in Go applications. It provides native WebRTC support for building applications with audio, video, and data channel functionality without external dependencies.

1,133

266

$1.5M

PyJWT

PyJWT is a Python library that provides tools for encoding and decoding JSON Web Tokens (JWT). It supports both symmetric and asymmetric signing algorithms and includes features for token verification, claims validation, and handling of JWT headers.

1,116

359

$223K

wolfSSL

wolfSSL is a lightweight, portable, C-language-based SSL/TLS library targeted for embedded, RTOS, and resource-constrained environments. It implements SSL 3.0, TLS 1.0, TLS 1.1, TLS 1.2, TLS 1.3, DTLS 1.0, and DTLS 1.2, featuring optimized speed, small footprint, and robust security features.

1,064

210

$88M

Rustls

Rustls is a modern TLS library written in Rust that provides a secure, fast, and memory-safe implementation of the TLS protocol. It aims to provide a clean, pure-Rust alternative to OpenSSL for TLS connections, with an emphasis on safety, correctness, and performance.

970

405

$3M

Botan

Botan is a cryptography library written in C++11 that provides a comprehensive set of cryptographic algorithms, protocols, and tools. It includes implementations of TLS, X.509 certificates, AEAD modes, hash functions, public key cryptography, and various other cryptographic primitives.

943

187

$178K

LibreSSL

LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.

689

200

$300K

libsecp256k1

Optimized C library for EC operations on curve secp256k1

581

167

$2.2M

AWS-LC

AWS-LC is a general-purpose cryptographic library maintained by the AWS Cryptography team for AWS and their customers. It іs based on code from the Google BoringSSL project and the OpenSSL project.

547

$99M

jose

JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes

494

160

$603K

Dalek elliptic curve cryptography

A pure-Rust implementation of group operations on Ristretto and Curve25519

469

169

$1.1M

ProtonMail Go Crypto

Fork of go/x/crypto, providing an up-to-date OpenPGP implementation

454

129

$1M

jwt-go

A Go implementation of JSON Web Tokens (JWT) that provides functionality for creating, parsing, signing and validating JWTs, with support for various signing algorithms and claims handling

440

140

$154K

Fizz

Fizz is a TLS 1.3 implementation library in C++14 that focuses on performance, security and modern features. It provides a comprehensive implementation of the TLS protocol with support for zero-copy APIs, asynchronous I/O, and modern cryptographic algorithms.

429

$2.7M

Resolve

A Node.js module that implements the node require.resolve() algorithm for resolving file paths and module dependencies, including support for browser-field resolution

409

209

$115K

RustCrypto: Hashes

Collection of cryptographic hash functions written in pure Rust

383

169

$1.1M

Elliptic

A fast elliptic curve cryptography library for Node.js and browser environments that implements various elliptic curves and provides functionality for key generation, signing, and verification

373

132

$493K

MIT Kerberos

MIT Kerberos is a network authentication protocol implementation that provides strong cryptographic authentication for client/server applications. It allows entities on an unprotected network to communicate securely by using secret-key cryptography.

347

$14M

WildFly Elytron

WildFly Elytron is a security framework that provides authentication, authorization, and security capabilities for WildFly and JBoss EAP applications. It implements security protocols, credential stores, and security realms while offering integration with various authentication mechanisms and identity stores.

325

$5.4M

getrandom

A Rust library that provides a safe interface for retrieving random bytes from system/hardware sources, serving as a low-level source of entropy for random number generation

278

127

$118K

Hyperledger Ursa

Ursa is a cryptographic library that provides a flexible, secure foundation for blockchain platforms. It implements standardized cryptographic algorithms and primitives, with a focus on digital signatures, zero-knowledge proofs, and other cryptographic operations commonly used in distributed ledger technology.

209

$2M

bn.js

bn.js is a JavaScript library that implements BigNumber for cryptography and arbitrary precision arithmetic operations in pure JavaScript, with a focus on performance and security

193

$160K

Post-Quantum Cryptography Alliance

A collaborative initiative focused on advancing post-quantum cryptography research, development, and standardization to prepare for quantum computing threats to current cryptographic systems

150

$316K

PQ Code Package

The mission of the Project is to create and maintain high-assurance implementations of standards-track post-quantum cryptography algorithms.

115

$10M

noble-hashes

Audited & minimal JS implementation of hash functions, MACs and KDFs.