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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.
Swift based OAuth library for iOS
A self-contained cryptographic library for Python
SteamKit2 is a .NET library designed to interoperate with Valve's Steam network. It aims to provide a simple, yet extensible, interface to perform various actions on the network.
The Sleuth Kit® (TSK) is a library and collection of command line digital forensics tools that allow you to investigate volume and file system data. The library can be incorporated into larger digital forensics tools and the command line tools can be directly used to find evidence.
Role management library with resource scoping
Cecil is a library to inspect, modify and create .NET programs and libraries.
A generic, spec-compliant, thorough implementation of the OAuth request-signing logic
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.
An authorization library that supports access control models like ACL, RBAC, ABAC in Node.js and Browser
Optimized C library for EC operations on curve secp256k1
Hardened allocator designed for modern systems. It has integration into Android's Bionic libc and can be used externally with musl and glibc as a dynamic library for use on other Linux-based platforms. It will gain more portability/integration over time.
A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
Golang OAuth2 server library
Port of TweetNaCl cryptographic library to JavaScript
Easy to use OpenID Connect client and server library written for Go and certified by the OpenID Foundation
A library for implementing authentication/authorization in Ember.js applications.
PHP Captcha library
RDP monster-in-the-middle (mitm) and library for Python with the ability to watch connections live or after the fact
A fast & densely stored hashmap and hashset
Fork of the popular zip manipulation library found in the zlib distribution.
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