1776 Open source projects that are alternatives of or similar to Nsec

A simple, secure and modern encryption tool (and Rust library) with small explicit keys, no config options, and UNIX-style composability.

Node.js bindings for Argon2 hashing algorithm

Crack hashes in seconds.

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

Cross-platform cryptographic functions in swift

Enigma cipher tool

Tanker client-side encryption SDK for JavaScript

CryptoTrojan in Python (For educational purpose ONLY)

Nim wrapper for the libsodium library

A secure and PGP enabled webmail module for Phosphorus Five

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

Public key cryptography library for Ruby providing the X25519 Diffie-Hellman function

Python binding to the Networking and Cryptography (NaCl) library

Tools for creating Merkle trees, generating merkle proofs, and verification of merkle proofs.

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.

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!

Ed25519 signing, verification and encryption, decryption for arbitary files; like OpenBSD signifiy but with more functionality and written in Golang - only easier and simpler

String encryption for Arduino, limited microcontrollers and other embedded systems.

Client-side password-protection for HTML

🔒 A set of high-level APIs over PointyCastle for two-way cryptography.

Elliptic Curve Cryptography playground/toolkit written in pure Python

Demos, Examples, Tutorials for using Microsoft SEAL library.

CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift

Simple hash algorithms in OCaml

Project Wycheproof tests crypto libraries against known attacks.

Implementations of the Simon and Speck Block Ciphers

W3C Web Cryptography API for Node.js

💎 Beamsplitter - A new (possibly universal) hash that passes SMHasher. Built mainly with a random 10x64 S-box. Also in NodeJS

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

Every cryptographic primitive needed to work on Ethereum, for the browser and Node.js

📚 VoidHack CTF write-ups

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

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

A plugin for Microsoft.EntityFrameworkCore to add support of encrypted fields using built-in or custom encryption providers.

A Java standalone implementation of the bcrypt password hash function. Based on the Blowfish cipher it is the default password hash algorithm for OpenBSD and other systems including some Linux distributions. Includes a CLI Tool.

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

Anonymous web chat server, built on top of Themis/WebThemis

Android cryptography library with SecureRandom patches.

HashCobra Hash Cracking tool.

Cloudflare's RPKI Toolbox

A repository that aims to provide tools for cryptography and cryptanalysis

SHA3 for JavaScript - The Keccak family of hash algorithms

A really tiny crypto library.

i2pd browser bundle

Portable C++ hashing library

Open Source Your Password (Mismanagement)!

A library for doing homomorphic encryption operations on tensors

Bash glue to encrypt and hide files

Microsoft SEAL is an easy-to-use and powerful homomorphic encryption library.

C++11 header-only message digest library

Secure USB DFU1.1 bootloader for STM32

🔥🐻 The Speakeasy Scripting Engine Which Combines Speed, Safety, and Simplicity

Advanced library for randomization, hashing and statistical analysis (devoted to chaos machines). 🔬

dude, is my code constant time?

Password4j is a user-friendly cryptographic library that supports Argon2, Bcrypt, Scrypt, PBKDF2 and various cryptographic hash functions.

Cryptography Toolkit

Multi-provider digital signature library for Rust

X25519 elliptic curve Diffie-Hellman key exchange in pure-Rust, using curve25519-dalek.

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

A WebAssembly (via AssemblyScript) set of cryptographic primitives for building authentication and key exchange protocols.