1065 Open source projects that are alternatives of or similar to Cryptogotchas

Virgil PHP Crypto Library is a high-level cryptographic library that allows you to perform all necessary operations for secure storing and transferring data and everything required to become HIPAA and GDPR compliant.

Filesystem in userspace (FUSE) with transparent authenticated encryption

A curated list of cryptography resources and links.

Cryptographic filesystem for the cloud

.NET Standard 1.3 implementation of the Noise Protocol Framework (revision 33 of the spec)

Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.

An open source cybersecurity protocol for syncing decentralized graph data.

IBM Fully Homomorphic Encryption Toolkit For Linux. This toolkit is a Linux based Docker container that demonstrates computing on encrypted data without decrypting it! The toolkit ships with two demos including a fully encrypted Machine Learning inference with a Neural Network and a Privacy-Preserving key-value search.

An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction

The portal to the new, open internet. ([I:b])

✅ .NET crypto done right. Professionally audited.

A modern and easy-to-use cryptographic library for .NET Core based on libsodium

A sample backend that demonstrates how to generate a Virgil JWT and Twilio token used for authentication with the Virgil and Twilio services

🔓 CLI tool and library to execute padding oracle attacks easily, with support for concurrent network requests and an elegant UI.

HElib is an open-source software library that implements homomorphic encryption. It supports the BGV scheme with bootstrapping and the Approximate Number CKKS scheme. HElib also includes optimizations for efficient homomorphic evaluation, focusing on effective use of ciphertext packing techniques and on the Gentry-Halevi-Smart optimizations.

s2n : an implementation of the TLS/SSL protocols

A really tiny crypto library.

Stream encryption & decryption with libsodium and protobuf

A complete overhaul of the Golang wrapper for libsodium

The world's easiest, most powerful random function.

How to backdoor Diffie-Hellman

libsodium compiled to Webassembly and pure JavaScript, with convenient wrappers.

Cloudflare's RPKI Toolbox

æternity: solving scalability problems by making sense of state-channels

Java 8 implementation of the Fernet Specification

example C language implementation of SIMON and SPECK lightweight block ciphers.

Android cryptography library with SecureRandom patches.

The PHP extension for libsodium.

Official implementation of IoTeX blockchain protocol in Go.

encrypt and decrypt files in your browser. Fast, Secure client-side File Encryption and Decryption using the web crypto api

the Crypto Undertaker

Java Cryptographic, Encoding and Hash Utilities

A secure and PGP enabled webmail module for Phosphorus Five

Multi-platform transparent client-side encryption of your files in the cloud

End-to-end encrypted instant web chat

A repository that aims to provide tools for cryptography and cryptanalysis

Tanker client-side encryption SDK for JavaScript

High-level cryptography interface powered by libsodium

📚 VoidHack CTF write-ups

Enigma cipher tool

🔑 Free Offline Password Manager

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.

A dead simple tool to sign files and verify digital signatures.

Cross-platform cryptographic functions in swift

Node.js bindings for Argon2 hashing algorithm

wolfSSL (formerly CyaSSL) is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3!

Scripts that illustrate basic cryptography concepts based on Coursera Standford Cryptography I course and more.

A cryptography algorithms library

Demos, Examples, Tutorials for using Microsoft SEAL library.

Pure Java implementation of Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud. Android ready. Online playground available.

Library consisting of explanation and implementation of all the existing attacks on various Encryption Systems, Digital Signatures, Key Exchange, Authentication methods along with example challenges from CTFs

An Android implementation of the Libsodium cryptography library. For the lazy dev.

Benchmarks for crypto libraries (in Rust, or with Rust bindings)

Zero-details, privacy-focused in-app file system.

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

A simple shell utility for encrypting and decrypting files using OpenSSL.

A Javascript implementation of SipHash-2-4

dude, is my code constant time?

W3C Web Cryptography API for Node.js

A modern, portable, easy to use crypto library.