An open API service indexing awesome lists of open source software.

Cryptography

Cryptography, or cryptology is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages.

https://github.com/rhcarvalho/tiwe

Tiwe is a distributed multiplayer board game

cryptography game golang multiplayer peer-to-peer

Last synced: 29 Apr 2026

https://github.com/ureeves/jwt-go-secp256k1

A secp256k1 signature method for dgrijalva/jwt-go.

cryptography golang jwt secp256k1

Last synced: 23 Sep 2025

https://github.com/hiegz/des

An optimized implementation of the Data Encrpytion Standard (DES) in C

c cryptography des encryption

Last synced: 15 Jun 2025

https://github.com/danilosramos/cypher-cpp

Implementação de uma Cifra de Substituição em C++ para demonstrar conceitos de criptografia.

algorithms cpp cryptography object-oriented-programming

Last synced: 15 May 2026

https://github.com/grunmax/gorsaexample

Golang & Cryptography. RSA sample. Base64 and Serialization used.

base64 blowfish cryptography go golang rsa rsa-cryptography serialization sha256

Last synced: 03 Apr 2025

https://github.com/m-azra3l/wavaudiostego

WAVAudioStego is a desktop application designed for audio steganography, which is the art of hiding secret information within an audio file. With this application, users can hide text messages in form of text files within audio audio files and extract them later using a private key.

cryptography steganography

Last synced: 25 Aug 2025

https://github.com/natsalete/algoritmo-des-data-encryption-standard-em-go

This project implements the DES (Data Encryption Standard) algorithm from scratch in Go, without using pre-built cryptography libraries. DES is a symmetric encryption algorithm that uses a block cipher, operating on 64-bit blocks with a 56-bit effective key (64-bit with parity).

56-bit-key 64-bit-blocks block-cipher cipher-blocks cryptography data-encryption-standard decryption des encryption feistel-network go golang key-generation pkcs7-padding s-boxes symmetric-encryption

Last synced: 24 Sep 2025

https://github.com/dulacp/cryptopals-challenges

My own solutions to the challenges of https://cryptopals.com/

challenges crypto cryptography solutions

Last synced: 01 Aug 2025

https://github.com/danutama/nextjs-aes-encryption

A simple and secure Next.js application to encrypt and decrypt files using AES CBC. Built with client-side using crypto-js, this app enables users to protect files with 128, 192, or 256-bit AES

advanced-encryption-standard aes aes-cbc aes-cipher aes-encryption algorithm cryptography landing-page nextjs rijndael

Last synced: 15 May 2026

https://github.com/skygenesisenterprise/api-service

The Official Sky Genesis Enterprise API Service Ecosystem

api-service client cryptography data dns docker javascript nextjs service stalwart typescript websocket

Last synced: 31 Dec 2025

https://github.com/sripwoud/cryptography

Modern Cryptography Primitives 101

basics cryptography primitives

Last synced: 03 Apr 2025

https://github.com/ammmir/npki

A minimal public key infrastructure (PKI) library for Go

cryptography go golang pki

Last synced: 02 Aug 2025

https://github.com/noomorph/p2p

Browser-based end-to-end encrypted message exchange using PGP, with no server storage

browser-based cryptography encryption end-to-end-encryption messaging openpgp pgp privacy security

Last synced: 25 Sep 2025

https://github.com/aka-nikko/desktop-activity-tracker

A Desktop activity tracker that logs all app usage and keystrokes.

cryptography openai python sqlite3

Last synced: 18 Apr 2026

https://github.com/roshannaidu/blockchain-workshop

This repository contains the details of the Blockchain workshop covering a wide range of topics and hands-on experience with some of the most critical aspects of blockchain development like smart contracts, etc.

blockchain blockchain-technology contracts cryptocurrency cryptography daap decentralized ethereum metamask nft opensea smart-contracts solidity web3 workshop

Last synced: 28 Apr 2026

https://github.com/maxgfr/playforgood

It is a cryptocurrency based on the fork of the litecoin

bitcoin bitcoin-forks btc cryptocurrencies cryptocurrency cryptography fork litecoin litecoin-fork ltc

Last synced: 16 May 2026

https://github.com/azanul/fireship-io-crypto-rust

Rough follow of the video by fireship-io, 7 Cryptography Concepts EVERY Developer Should Know (https://www.youtube.com/watch?v=NuyzuNBFWxQ)

argon2 asymmetric cryptography encryption-decryption hashing hmac rust salting sha256 signature signing symmetric

Last synced: 02 Aug 2025

https://github.com/bebofekry/cryptography

Ctyptography basic algorithms implementation for Encryption, Decryption, and Attack (Additive Cipher, Multiplicative Cipher, Affine Cipher, Vigenere Cipher, RSA, SDES)

brute-force cryptography cyber-security data-security datasecurity decryption encryption python security

Last synced: 02 Aug 2025

https://github.com/adistrim/rsa-pkcs1_oaep-encryption

🔐 RSA encryption and decryption with PKCS1 OAEP padding scheme. Includes key pair generation, encryption with public key, decryption with private key, and secure cryptographic operations.

cryptography pycryptodome python rsa

Last synced: 02 May 2025

https://github.com/isaaczhang4/rsa-cryptography

Python implementation of the RSA Cryptography Algorithm

cryptography number-theory python rsa-cryptography

Last synced: 02 Aug 2025

https://github.com/filiprokita/hashtool

A simple command-line tool for calculating the MD5, SHA-1, and SHA-256 hash values of a text or a file, written in Python.

algor command-line-tool cryptography encrypt encryption encryption-algorithms file-hashing hack hashing hashlib md5 python python3 securirty sha sha1 sha256 text-hashing

Last synced: 02 Aug 2025

https://github.com/unixpup/genpasswd

Cryptographically secure password generator using libsodium

clang cryptography password-generator security-tools sodium

Last synced: 02 Apr 2025

https://github.com/vghxv/mac_ctf

CTF challenge

cryptography ctf mac

Last synced: 01 May 2026

https://github.com/rakibhossain72/XORpass

XORpass is a Flask-based password manager application with MongoDB integration. It allows users to securely store their passwords in a MongoDB database, with encryption applied using their own master password. This ensures that the stored passwords are protected and can only be accessed by the owner.

cryptography encrypted-store flask password-manager

Last synced: 27 Sep 2025

https://github.com/hazae41/ed25519

Ed25519 adapter for WebAssembly and JS implementations

adapter browser cryptography curve25519 ed25519 javascript typescript webassembly

Last synced: 08 Sep 2025

https://github.com/zing-rsa/discord-wallet-verify-backend

Microservice to perform Cardano wallet(signature) verification for discord bots

cardano cryptocurrency cryptography signature-verification

Last synced: 02 Apr 2025

https://github.com/anshvaid4/ul

Repository showcasing the mathematics for cryptography and other cyber related concepts

cpp cryptography cyber-security mathematics university-of-limerick

Last synced: 27 Mar 2025

https://github.com/zizisk-100bz/cryptoguardian

Cryptoguardian is a secure wallet application designed to protect your digital assets. It uses advanced encryption methods to ensure that your cryptocurrencies remain safe from unauthorized access.

bitcoin crypto crypto-tools crypto-wallet cryptography github-config matplotlib nodejs pandas seaborn sha256-hash streamlit visualization walletkeytool

Last synced: 01 May 2026

https://github.com/arvid-berndtsson/typesecure

A focused TypeScript cryptography package that provides secure encryption and hashing utilities with strong typing and runtime validation using Zod.

cryptography cybersecurity encryption hashing password security typesafe typescript zod

Last synced: 19 Feb 2026

https://github.com/pvlbzn/blockchan

Blockchain implementation

blockchain cryptography

Last synced: 05 Aug 2025

https://github.com/jtdowney/speck

Toy implementation of Speck cipher in Rust

cipher cryptography speck

Last synced: 27 Mar 2025

https://github.com/ryan-rozario/auctf_2020

Solutions for a few of the AUCTF 2020 Crypto Problems. Did not have much time to solve as much as i wanted to.

auctf auctf2020 crypto cryptography ctf

Last synced: 03 Apr 2025

https://github.com/joestr/enka

Enkapsulate your data!

aes cryptography decryption encryption rsa

Last synced: 08 Jul 2025

https://github.com/zahidayturan/advanced-encryption-standard-application

This app securely encrypts and decrypts your files by generating keys using the AES algorithm.

aes cryptography encryption firebase firestore flutter symetric-encryption

Last synced: 09 Apr 2026

https://github.com/tankerhq/identity-ruby

Identity management in Ruby for the Tanker SDK

cryptography encryption privacy ruby sdk security tanker

Last synced: 09 Aug 2025

https://github.com/sundarnagarajan/pymultikdf

Python wrappers for bcrypt, PBKDF2 (fastpbkdf2) scrypt (Tarsnap)

bcrypt cryptography fastpbkdf2 pbkdf2 python-wrapper scrypt wrapper

Last synced: 23 Aug 2025

https://github.com/khaledsharif/rubiks-encrypt

An encryption/decryption scheme based on the rubiks cube principle.

cryptography encryption research-project rubik-cube-principle

Last synced: 17 Mar 2025

https://github.com/alessandroconti11/constant_time-parallel_shuffling

Shuffling arrays in constant time is a common problem in modern cryptography. This project involves analyzing the technique proposed in https://cr.yp.to/2024/insertionseries-20240515.py, and implementing it in C, possibly employing parallelization.

c complexity-study computer-engineering computer-science-and-engineering constant-weight-word cryptography cryptography-and-architecture-for-computer-securit cww daniel-j-bernstein djb insertion-in-array insertion-series polimi porting porting-python-to-c python-to-c

Last synced: 17 Jun 2026

https://github.com/mohith6/certificate-broadcast

Broadcasting certificates to the clients over HTTP and HTTPS protocols and validating client's certificate over HTTPS using mutual SSL authentication

certificates cryptography digitalsignature java publickey-authentication rsa-encryption

Last synced: 29 Jul 2025

https://github.com/geikha/cryptography-scripts

Basic cryptograhpy in Python, just for practice

console-application cryptography python python3 scripting

Last synced: 04 Oct 2025

https://github.com/lazula/cryptopals

A collection of solutions for the challenges at cryptopals.com in C89

cryptography ctf

Last synced: 08 Jul 2025

https://github.com/soumabha-banerjee/enigmaticbyte

This is a steganography desktop application that hides txt messages inside a cover image. It is completely developed using JavaFX and Cryptography and Steganography both is used. For Cryptography we used a symmetric key technique called Columnar Transposition and for Steganography we used LSB Insertion technique.

cryptography cryptography-algorithms desktop-application java javafx javafx-desktop-apps network-security steganography steganography-algorithms

Last synced: 14 Feb 2026

https://github.com/jcbritobr/gocrypto-study

This study is based on Golang Cryptography for Depeloper book and its examples.

cryptography golang study

Last synced: 06 Oct 2025

https://github.com/dssgabriel/PRESENT24-attack

Blazing fast MITM attack on a 24 bits implementation of the PRESENT block cipher algorithm.

blockcipher c cryptography maninthemiddleattack maqao optimization

Last synced: 31 Mar 2025

https://github.com/twtiger/crypto

Crypto library in golang

cryptography

Last synced: 14 Jan 2026

https://github.com/craiggleso/enigma

Javascript implementation

cryptography enigma

Last synced: 06 Oct 2025

https://github.com/maxencerb/crypto-exercices-2021-td1

Ploblem solving for cryptography.

cryptography problem-solving

Last synced: 27 Apr 2026

https://github.com/avivijay19/hash-generator

Hash generator is a crypto based android application which works on different hashing algorithms.

android cryptography kotlin kotlin-android

Last synced: 29 Apr 2026

https://github.com/emrekayik/ekode

EKODE, metni resim üzerinde saklamak için kullanılan bir algoritmadır.

cryptography python

Last synced: 17 May 2026

https://github.com/idhamm15/p10-cryptography

Cryptography Application With Java Programming

application-java cryptography java

Last synced: 14 Mar 2025

https://github.com/roydevashish/chacha20-hash-lightweight-cryptographic-hash-function-based-on-chacha20

A lightweight cryptographic hash function inspired by ChaCha20, designed for speed, simplicity, and efficiency in resource-constrained environments. Ideal for embedded systems, research, and educational purposes. Not intended for production use without further cryptanalysis.

chacha20 cryptographic-hash-functions cryptography hash-function

Last synced: 13 Jun 2026

https://github.com/pavan-m060/capstone_project

🔐 Encryption & Decryption Web App A simple Flask-based web application that implements Caesar and Transposition ciphers for secure text encryption and decryption. Includes file handling support and a user-friendly local HTML interface for seamless interaction.

ceaser-cipher cryptography decryption encryption filehandling flask python transposition-cipher webapplication

Last synced: 30 Apr 2026

https://github.com/ite-2022-pwr/sem4-oiak-proj-mb-ak

Organizacja i architektura komputerów - projekt

assembler assembly cryptography kyber-crystal

Last synced: 28 Mar 2025

https://github.com/aulanchik/decryptor

Code Cipher challenge

axios cryptography javascript nodejs

Last synced: 30 Apr 2026

https://github.com/mdsaddam7860/password_generator_using_react_vite_and_tailwindcss

A simple yet powerful password generator built with React and Vite for fast development, styled with Tailwind CSS for a clean, responsive design.

cryptography developer-tools frontend javascript open-source password-generator-javascript react-hooks reactjs security-tool tailwind tailwind-ui vite vitejs webapp

Last synced: 30 Apr 2026

https://github.com/primefactor-io/commitment

Implementations of various Commitment Schemes

commitment-schemes cryptography cryptography-algorithms

Last synced: 15 May 2025

https://github.com/csnp/qramm-cryptodeps

Cryptographic Dependency Scanner - Identify quantum-vulnerable cryptographic algorithms in your software dependencies. Part of the QRAMM Toolkit.

cbom cnsa cryptography dependencies golang post-quantum post-quantum-cryptography pqc quantum-computing sast sbom security supply-chain-security vulnerability-scanners

Last synced: 13 Jan 2026

https://github.com/moeenn/go-token

Generate crypto-random strings (i.e. tokens) of any length

crypto-random-string cryptography go golang token

Last synced: 11 Mar 2026

https://github.com/soyart/gfc

stable branch of gfc, a small go file encryption utility using AES 256 and PBKDF2

aes crypto cryptography encryption rsa

Last synced: 14 Jan 2026

https://github.com/manesioz/hill-cipher

Application of linear algebra to cryptography 🔐 encryption and decryption of text by a polygraphic substitution cipher

cryptography hill-cipher linear-algebra python

Last synced: 15 Jun 2026

https://github.com/aditya-giri/cryptopals

My solutions to the Matasano Challenges in Cryptography.

cryptography cryptopals matasano matasano-cryptopals-challenges

Last synced: 19 Sep 2025

https://github.com/mahfuzurrahman98/telechipher

This is a system developed as an assignment of a cyber-security course capable of transferring files through a secure communication channel with the support of encrypting data on the sender end and decryption on the receiver end.

aes-encryption chipher cryptography cybersecurity encryption-decryption pysftp rot13 sftp tkinter-gui

Last synced: 08 Oct 2025

https://github.com/daisvke/dcrypt

dcrypt is a file encryption/decryption tool that adds a custom header to encrypted files, storing essential metadata for decryption and management of the encrypted content.

aes-128-cbc c cryptography encryption-decryption keygen

Last synced: 25 Mar 2025

https://github.com/jdanielescanez/qkd-sampler

A Rust CLI tool for simulating Quantum Key Distribution (QKD) protocols, including BB84, Six-State, and B92. This crate provides a flexible and efficient way to simulate quantum key exchange, analyze security metrics, and evaluate the impact of eavesdropping.

b92 bb84 cryptography qkd quantum six-state

Last synced: 15 Jun 2026

https://github.com/gkbrk/r30sponge.h

Sponge function based on the Rule 30 Cellular Automaton

c c89 c99 cryptography stb stb-library

Last synced: 24 Mar 2025

https://github.com/nico-curti/cryptosocket

TCP/IP Client Server with RSA cryptography

cryptography rsa socket

Last synced: 14 Nov 2025

https://github.com/cwaring/ucan-inspector

An embeddable Web Component for inspecting UCAN tokens directly in the browser.

authorization authz cryptography debugger devtools js ucan vue3

Last synced: 16 Jan 2026

https://github.com/dbalan/cryptopals

Cryptopals solutions

cryptography go golang

Last synced: 13 Mar 2026

https://github.com/ioexcept10n/filekeeper

A project of a file encryption Android app made with .NET MAUI

android cryptography csharp cybersecurity dotnet maui

Last synced: 01 May 2026

https://github.com/guilt/gsum

gsum is a versatile command-line hashing tool written in Go, supporting a wide range of cryptographic and non-cryptographic hash algorithms. It offers advanced features like incremental hashing, GPG signing/verification, progress bars, and compatibility with existing Unix and Windows environments.

chatgpt checksum cryptography defense-methods golang grok gsum hashing incremental range utility verification

Last synced: 09 Oct 2025

https://github.com/ilyakotsar/imagecrypt

Image encryption with a password using rail fence cipher

cryptography encryption image-encryption rail-fence-cipher

Last synced: 09 Aug 2025

https://github.com/yumevote/voting-iot-machine-ui

A emulated GUI application which acts as a POS IOT Machine (DRE) to allow people to vote for election on the Maschain

arduino cryptography iot python tkinter-gui

Last synced: 15 Feb 2026

https://github.com/marenkeneshov/marintxtcrypt

Приложение позволяет шифровать введённый текст. Не используйте это приложение в незаконных целях! The application allows you to encrypt the entered text. Do not use this app for illegal purposes! Бұл қосымша енгізілген мәтінді шифрлауға мүмкіндік береді. Бұл қосымшаны заңсыз мақсаттарда пайдаланбаңыз!

cryptography cybersecurity cybersecurity-tools cypher

Last synced: 18 Jan 2026

https://github.com/tnmyk/localblockchain

Centralized and local imitation of blockchain technology using Javascript.

blockchain cryptography javascript

Last synced: 26 May 2026

https://github.com/juanfkurucz/proyecto-seguridad

Subject "Seguridad" (Security) from Universidad Catolica del Uruguay

cryptography hashing python security

Last synced: 24 Mar 2025

https://github.com/oklein1/cryptography-clojure

Clojure implementation of ciphers

cipher-algorithms clojure cryptography

Last synced: 10 Oct 2025

https://github.com/1limxapp/react-native-chacha20-poly1305

ChaCha20-Poly1305 encryption/decryption for Flutter. Native implementation makes sure it has the fastest performance.

256-bit aes android chacha20 chacha20-poly1305 chacha20poly1305 cihper cipher-algorithms cross-platform cryptography encryption encryption-algorithms ios javascript react react-native typescript

Last synced: 21 Feb 2026

https://github.com/saorsa-labs/saorsa-fec

Core foundational crates for the Saorsa P2P ecosystem: saorsa-types, saorsa-fec (Forward Error Correction), and saorsa-rsps (Reed-Solomon with Proof Systems)

cryptography error-correction fec foundation networking p2p reed-solomon rust types

Last synced: 20 Jan 2026

https://github.com/rokatyy/skitala

skitala encoder/decoder (in progress)

crypto cryptography encoder-decoder skitala

Last synced: 15 Jun 2026

https://github.com/baha2rm98/crypto_note

Developed by : Baha2rM98 and AshkanAbd

android-app cryptography java

Last synced: 02 May 2026

https://github.com/davidkirwan/number_station

This gem contains a number of utilities to aid in the running of a number station.

cryptography number-station one-time-pad one-time-pad-cipher pseudorandom pseudorandom-number-generator radio

Last synced: 08 Nov 2025

https://github.com/amiriiw/merklenote

Merkle Note is a secure text editor that offers advanced file management and encryption features. It encrypts files using a Merkle root as a password, ensuring data integrity and confidentiality. Users can create, open, and save encrypted or plain text files, while the intuitive interface streamlines file navigation.

cryptography editor file hash merkle-tree notebook password

Last synced: 21 Aug 2025

https://github.com/tigeryant/merkle-tree

Produces a merkle root from a set of user defined strings

binary-hash-tree cryptography merkle-tree

Last synced: 11 Oct 2025

https://github.com/projects-developer/steganography-projects

This project aims to design and develop a steganography system that enables secure and covert communication. Steganography Project Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

btechprojects computer-sceience-projects computerscienceprojects covertcommunication cryptography datasecurity final-year-projects finalyearprojects imageprocessing informationhiding mtechprojects securecommunication steganography textanalysis

Last synced: 04 Jan 2026