Testing TLS/SSL encryption anywhere on any port

Real fucking shellcode encryptor & obfuscator tool

🔒 Secure localStorage data with high level of encryption and data compression

Public Domain C Library of Cryptographic functions. Including: MD5, SHA1, SHA256, SHA512, RC4, AES, AES-CTR, AES-OFB, AES-CBC

A script language of time-sharing scheduling coroutine in single thread

Compiler-free Python crypto library backed by the OS, supporting CPython and PyPy

A cryptography algorithms library

A collection of tools related to original Xbox

👨‍💻 Computer Security algorithms in C#

Supernova 的中文版和扩展了一些加密方式（ROT, XOR, RC4, AES, CHACHA20, B64XOR, B64RC4, B64AES, B64CHACHA20）

RSA+AES/RC4+MD5/SHA1+BASE64加密解密。Java及Android平台通用的RSA算法工具类及其例子（敏感信息加密、私钥签名&公钥验签、公钥加密&私钥解密、软件注册码/授权码）

An open-source modular framework capable of identifying a wide range of TLS vulnerabilities and assessing compliance with multiple guidelines. Its actionable report can assist the user in correctly and easily fixing their configurations.

🔐 150+ Algorithms, Reactive GUI, and More: Text & File Encryption, Hashing, MAC, Key Generation, and Password Strength Evaluation. JCA, JCE with Bouncy Castle

Cryptography and Network Security Lab programs done in 7th semester of SIT(VTU).

Pure Implementations for encryption algorithms including DES, RSA, AES, RC4

🎲 open source gaming emulator for flash based games

A fast crypto library for .NET

http://testssl.sh/ in a tiny docker container

Server-hosted API endpoints for encrypting and decrypting anything (strings, ids, tokens).