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.

GitHub: https://github.com/topics/cryptography
Wikipedia: https://en.wikipedia.org/wiki/Cryptography
Last updated: 2026-06-30 00:07:03 UTC
JSON Representation

https://github.com/innovativeinventor/pylamport

A simple Python library for generating cryptographic Lamport signatures

cryptography identity signature

Last synced: 16 May 2026

https://github.com/myndscript/qalx

Quantum Level Security

algorithms cryptography

Last synced: 14 Jan 2026

https://github.com/projects-developer/top-10-bca-final-year-projects

The top 10 BCA final year projects include e-commerce website development, online survey and feedback systems, web scraping and data mining. Top 10 BCA Projects .Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials.

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Last synced: 04 Jan 2026

https://github.com/protomorphine/rsa-communication-system

Основные стадии процесса шифрования текстового сообщения с помощью алгоритма RSA

cryptography encryption matlab rsa

Last synced: 01 Jun 2026

https://github.com/nthparty/rbcl

Python library that bundles libsodium and provides wrappers for its Ristretto group functions.

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Last synced: 16 Jan 2026

https://github.com/aead/sio

Go implementation of the Data At Rest Encryption (DARE) format.

cli cryptography encryption

Last synced: 14 Jan 2026

https://github.com/alexfariakof/easycryptosalt

Biblioteca simples e eficiente para operações criptográficas em .NET. Usando o algoritmo SHA-256, juntamente com a capacidade de comparar hashes utilizando uma chave e um salt.

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Last synced: 21 Jan 2026

https://github.com/h3nry-d1az/trsa

Minimal textbook RSA implementation

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Last synced: 13 Jan 2026

https://github.com/virgilsecurity/demo-nexmo-chat-server

Application API server for the Virgil Nexmo Demo Messaging app.

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Last synced: 23 Jun 2026

https://github.com/bahanix/chatchan

End-to-end encrypted chat in your browser

chat cryptography end-to-end web-app

Last synced: 13 Oct 2025

https://github.com/Lemniscate-world/Noun

Build my own blockchain based on TOR protocol

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Last synced: 13 Oct 2025

https://github.com/salrashid123/tpmrand

TPM backed crypto/rand Reader

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Last synced: 13 Oct 2025

https://github.com/chainsafe/pairings-js

Elliptic Curve Pairings in Pure Javascript

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Last synced: 13 Oct 2025

https://github.com/spatocode/secrecy

Cryptographic tool for file encryption with AES Cipher

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Last synced: 10 Apr 2026

https://github.com/demining/korean-version-of-bitcoin-blockchain-cryptanalysis

비트코인 암호화 분석 도구

attack bitcoin bitcoin-wallet btc cryptoanalysis cryptography privatekey secp256k1 vulnerability

Last synced: 10 Mar 2026

https://github.com/esno/ciphertext

a simple web-ui to crypt / decrypt text locally

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Last synced: 27 Jun 2025

https://github.com/codeheadsystems/hofmann-elimination

OPF framework for shared keys built from sensitive data

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Last synced: 10 May 2026

https://github.com/crane-valley/kylix

A post-quantum cryptography library implementing NIST FIPS standards in pure Rust.

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Last synced: 28 Jan 2026

https://github.com/jjordanoc/rsa-encryption

A simple implementation of RSA encryption for arbitrary strings

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Last synced: 24 Jun 2026

https://github.com/kuanhungchen/spring-2021-network-security

🔐 Implementation of encryption algorithms such as AES, Miller-Rabin and Elliptic Curve ElGamal.

aes-encryption cryptography elgamal-encryption elliptic-curve-cryptography encryption-decryption miller-rabin-algorithm network-security

Last synced: 15 May 2026

https://github.com/louislefevre/rsa

RSA cryptosystem for demonstrating the encryption and decryption of messages

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Last synced: 30 Mar 2025

https://github.com/talha-1010/des-algorithm

A symmetric-key algorithm for the encryption of digital data.

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Last synced: 18 Oct 2025

https://github.com/pushpendra-1697/wedsurf

This React onboarding project includes pages for login, signup, home, and profile functionalities, catering to user authentication and navigation, facilitating a seamless design experience. The user will be blocked for the next 24 hours after putting 5 times wrong password at the time of token-based login.

axios bcrypt chakra-ui cryptography expressjs jsonwebtoken jwt-decode mongodb mongoose nodejs otp-authentication react-components react-hooks react-icons react-router-dom react-slideshow-image reactjs responsive-design token-based-authentication twilio

Last synced: 02 Apr 2026

https://github.com/amr-yasser226/datagovernanceworkflow

Comprehensive data governance pipeline for SSH honeypot logs—covering data profiling, cleansing, quality assurance, encryption, classification, and GDPR/CCPA/HIPAA compliance. Built with Pandas, Pandera, YData Profiling, and cryptography, with simulated Caesar cipher attacks to demonstrate practical data-security techniques.

caesar-cipher ccpa cryptography cybersecurity data-cleaning data-encryption data-governance data-profiling data-quality data-validation data-visualization gdpr hipaa honeypot-analysis open-source pandas privacy-compliance python ssh-logs

Last synced: 05 Feb 2026

https://github.com/jasonqsy/serpent

Serpent cipher in the AES contest.

aes-cipher cryptography

Last synced: 25 May 2026

https://github.com/ableinc/polysecrets

A completely randomized order of secrets; built with security in mind.

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Last synced: 29 Mar 2025

https://github.com/pactus-project/python-sdk

Python-SDK for Pactus Blockchain

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Last synced: 15 Apr 2025

https://github.com/prongbang/aes_ctr

AES CTR - Counter Flutter plugin.

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Last synced: 04 Jan 2026

https://github.com/rohith-2/cryptographic_blockchain

Simulating Blockchain with mining and peer verification

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Last synced: 23 Jan 2026

https://github.com/guppster/ark-nim

A Nim library simplifying connection to the ARK blockchain

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Last synced: 25 May 2026

https://github.com/onlycodergod/crypto-beta

🛡learn and watch how crypto work in Go

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Last synced: 12 Jan 2026

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

Steganography is the practice of hiding secret information within a non-secret message, image, or other medium. Steganography Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

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Last synced: 06 Feb 2026

https://github.com/enjeck/cryptoalgovisualizer

Visualizations of various cryptography algorithms

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Last synced: 24 Oct 2025

https://github.com/trashhalo/saltpack

node wrapper of saltpack library

cryptography keybase saltpack

Last synced: 11 Jan 2026

https://github.com/outspace/vigdec

vigdec aka heartbreaker – tool that breaks Vigenère cipher without knowing the key.

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Last synced: 25 Oct 2025

https://github.com/blakeziegler/ozone-blockchain

IPFS compatiable blockchain using Akka actors and Akka clusters.

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Last synced: 23 Jan 2026

https://github.com/iboudhaine/rsa-encryption-and-in-practice

Implementation and exploration of RSA encryption, including its security properties, practical applications, and real-world use cases. A class project to learn and experiment with cryptographic principles

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Last synced: 25 Oct 2025

https://github.com/williamstaffordparsons/robotburst

RobotBurst is the hyper-efficient 64-bit CSPRNG.

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Last synced: 25 Jun 2026

https://github.com/ul-mds/pprl

Collection of software packages for performing privacy-preserving record linkage based on Bloom filters

cryptography privacy python record-linkage

Last synced: 28 Jan 2026

https://github.com/lgraubner/strong-pwgen-cli

🔒Generate cryptographically strong passwords.

cli crypto cryptography password password-generator

Last synced: 27 Oct 2025

https://github.com/crane-valley/kylix-cli

A command-line interface for Kylix, a post-quantum cryptography library implementing NIST FIPS standards in Rust.

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Last synced: 28 Jan 2026

https://github.com/confy-security/confy-addons

Implementation of symmetric and asymmetric encryption with AES and RSA algorithms for client applications of the Confy communication system

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Last synced: 28 Jan 2026

https://github.com/rafael-santiago/zacarias

Password manager with kernel mode powers (FreeBSD, Windows and Linux)

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Last synced: 06 May 2026

https://github.com/dualeai/hpke-http

End-to-end encryption for HTTP APIs using RFC 9180 HPKE. Drop-in middleware for FastAPI, aiohttp, and httpx.

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Last synced: 06 Feb 2026

https://github.com/insipx/rsa

RSA Algorithm Implemented in Rust

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Last synced: 15 May 2025

https://github.com/harshil748/pylockv2

PyLockv2 is a secure password manager application built using Python and Tkinter. It allows users to store and manage their passwords securely, with features such as password encryption, email verification, and password reset using a special sentence.

cryptography cybersecurity hashing-passwords python3 smtp

Last synced: 25 Feb 2026

https://github.com/rohankalbag/cryptography-signal-protocol

Cryptography and Network Security - Spring Semester 2024 - Indian Institute of Technology Bombay

cryptography end-to-end-encryption signal-protocol

Last synced: 31 Jan 2026

https://github.com/jenson073/factorization_algorithms

This project was designed as a simple exploration of RSA algorithm vulnerabilities, particularly focusing on the factorization problem. It's an excellent example of how web technologies can be applied to explore and demonstrate cryptographic concepts.

cryptography factorization information-security rsa

Last synced: 14 Mar 2025

https://github.com/prthd/secure-file-system

A secure multi-user file system with end-to-end encryption, HMAC-based integrity verification, and Unix-style permission control. Features bcrypt-authenticated logins, group-based collaboration, and a command-line interface for secure file operations on untrusted storage.

access-control bcrypt cli cryptography encryption fernet-encryption filesystem hmac-sha256 integrity python secure-storage security unix-permissions

Last synced: 25 Feb 2026

https://github.com/parassalunke/stega-shield

Stega-Shield is a modern web application that lets you hide secret messages within images using steganography and encryption. Built with React and TailwindCSS, it provides a secure and user-friendly way to encode and decode hidden messages.

cryptography cybersecurity javascript react steganography tailwindcss vite

Last synced: 25 Feb 2026

https://github.com/zkportal/aleo-oracle-sdk-go

Golang client SDK for Aleo Oracle

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Last synced: 31 Jan 2026

https://github.com/spectre7651/crypta

Reasonably Good Encryption and Decryption Software (Python 3)

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Last synced: 05 Jun 2026

https://github.com/bogwi/r-math

A Rust crate for rare, high-performance mathematical algorithms not commonly found in mainstream libraries.

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Last synced: 17 Mar 2026

https://github.com/hubtou/certwatch

Watch the certificates expiration dates for a list of hostname:hostport

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Last synced: 25 Feb 2026

https://github.com/dalda-iitj/libr

A Moderated, Censorship-Resilient Digital Forum

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Last synced: 28 Jun 2026

https://github.com/fa7ad/bad-ciphers

A collection of bad ciphers

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Last synced: 21 Jan 2026

https://github.com/kzorin52/funnycryptor

[poc] Ransomware in pure C#

cryptography poc ransomware rsa rsa-cryptography rsa-encryption

Last synced: 13 Jul 2025

https://github.com/jitendragangwar123/cryptography

This Repository have some basic Cryptographic Algorithms and other basic concepts which is used in Blockchain Technology.

cryptography javascript

Last synced: 07 May 2026

https://github.com/anseki/grunt-gnirts

Obfuscate string literals in JavaScript code.

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Last synced: 08 Mar 2026

https://github.com/reddinton95/custom-plugin-backend

🚀 Master backend development with a structured, self-paced learning platform featuring 7 specialized agents and over 1000 code examples.

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Last synced: 08 May 2026

https://github.com/iamb4uc/db-backup-utility

A Python Project that can be used to backup some of the most used databases

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Last synced: 09 Feb 2026

https://github.com/kolosovpetro/rsaencryptionexplained

Simple explanation on the symmetric encryption problematics and main idea behind the Rivest-Shamir-Adleman (RSA) encryption.

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Last synced: 09 Feb 2026

https://github.com/alexlaurence/psyauth

🔐A crypto protocol system that plants an authentication token inside a user's implicit memory to unconsciously learn sensitive information that is robust against torture/coercion

biometric-authentication cryptography memory-game psychology-experiments security

Last synced: 10 Oct 2025

https://github.com/ttopm/be-core-bridge

Belel Protocol – World’s first sovereign AI core, authored and safeguarded by Pearce Robinson

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Last synced: 16 Apr 2026

https://github.com/talyx/amib

Реализация криптографических алгоритмов/протоколов/схем

cryptography

Last synced: 19 Apr 2026

https://github.com/matt-raffel-kiva/didgen

Simple tool for generating DID and VERKEY pairs

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Last synced: 24 May 2026

https://github.com/tuokri/unrealscript-fcrypto

Pure UnrealScript SSL/TLS implementation and cryptography utilities based on BearSSL. Work in progress.

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Last synced: 19 Mar 2026

https://github.com/chanced/navajo

A cryptographic toolkit for Rust

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Last synced: 19 Jan 2026

https://github.com/drimiteros/secret_scribble_v1.0-open

An offline password manager with a graphical user interface

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Last synced: 11 Feb 2026

https://github.com/mingikang31/SiFT-v1.0

Cryptography Project

cryptography encryption-decryption python3

Last synced: 09 May 2026

https://github.com/interkosmos/lucifer

Lucifer block cipher in FORTRAN 77

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Last synced: 13 Feb 2026

https://github.com/mirtia/ctflearn-cryptography

Writeups for Cryptography Challenges

cryptography ctf-learn

Last synced: 28 Jun 2025

https://github.com/dmberezovskyii/secure-test-automation

Cipher is a Python library for encrypting and decrypting passwords, designed for integration with automated testing frameworks such as Selenium, Appium, Playwright, and others. It ensures secure password storage and allows retrieving keys from remote vaults to decrypt configuration files.

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Last synced: 15 Feb 2026

https://github.com/alexstevovich/ghostmail

[Node.js] Obfuscates inline HTML email addresses to protect from bots and scrapers.

cryptography email micro nodejs

Last synced: 15 Feb 2026

https://github.com/dipanshkhandelwal/manytimepad

A solution to many time pad attack https://manytimepad.js.org/

cryptography encryption manytimepad onetimepad

Last synced: 15 Feb 2026

https://github.com/smadgulkar/enigma

A simple python script to encrypt/decrypt files and folders.

cryptography encryption-decryption python3

Last synced: 24 May 2026

https://github.com/azuchi/frostrb

Ruby implementations of Two-Round Threshold Schnorr Signatures with FROST.

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Last synced: 02 Mar 2026

https://github.com/nanoframework/system.security.cryptography

📦 .NET nanoFramework System.Security.Cryptography

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Last synced: 02 Mar 2026

https://github.com/radlikewhoa/rainbow-road

Rainbow table exercise for the Cryptography and Security module (krysi) at the FHNW.

cryptography hashing java rainbow-table

Last synced: 11 Nov 2025

https://github.com/nalinrajendran/cryptography-automata-theory

This is a simple scenario based application for string matching and cryptography in the case of a publisher, subscriber model. This demonstrates the communication between a publisher and a subscriber model using two different modes of encryption and decryption(Caesar Cipher, Bit-Flipping).

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Last synced: 03 Mar 2026

https://github.com/shgysk8zer0/phpcrypt

Provides a variety of cryptographic traits and classes to PHP

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Last synced: 01 Apr 2026

https://github.com/yuukiofuyu/campus

Simple Feedback Web to Connect Students with Lecturers Based on Python FLASK

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Last synced: 14 Apr 2025

https://github.com/benwoo1110/cryptographyapp

Advanced converter for modern cryptography algorithms

cryptography csharp

Last synced: 31 Mar 2026

https://github.com/gitgab19/blockchain-address-list-generation

The focus of this repo is to retrieve the full list of addresses ever appeared into any transactions for some of the most famous blockchains using the secp256k1 curve. These Python scripts have been used for an academic research at Politecnico di Torino. If you want to know more about our paper, you can find it at https://arxiv.org/abs/2206.14107.

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Last synced: 09 May 2026

https://github.com/byjohnmichael/sealed-wallet

Sealed Wallet is a set of python scripts to enable you to create and manage air-gapped crypto wallets

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Last synced: 15 May 2026

https://github.com/womb0comb0/hack-knight-25

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Last synced: 16 Apr 2026

https://github.com/0800tim/tournamental

Tournamental — verified tournament prediction game + 3D match renderer (tournamental.com)

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Last synced: 03 Jun 2026

https://github.com/flyingrobots/git-cms

A serverless, Git-native CMS built on pure plumbing. Stores content as signed commit messages on empty trees—no database required, just immutable Merkle DAGs.

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Last synced: 20 Feb 2026

https://github.com/exenon/cryptopals

Solutions to the Cryptopals Crypto Challenges

cryptography cryptopals

Last synced: 03 Oct 2025

https://github.com/nandanr06/full-stack-cryptocurrency

Cryptocurrency Tracker is a real-time app for monitoring cryptocurrency prices, market trends, and historical data. Powered by the CoinGecko API, Node.js, Express, and React, it allows users to view live market updates, explore trending coins, and analyze price histories with interactive charts—all in a responsive, user-friendly interface.

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Last synced: 17 Apr 2026