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: 2026-06-27 00:06:46 UTC
JSON Representation

https://github.com/darkzarich/local-encrypt-tool

Node.js utility for encrypting and decrypting sensitive data locally. Uses AES-256-GCM encryption with a key derived from your provided password using PBKDF2.

cryptography node nodejs

Last synced: 12 Apr 2026

https://github.com/orientsrocks6n/trading_soft_

The project is aimed at developing an intelligent bot for automated cryptocurrency trading, leveraging advanced machine learning (ML) algorithms and feature engineering. The project offers the following core functionalities

arbitrage bitcoin blockchain btc crypto-arbitrage crypto-trading cryptocurrency cryptography eth ethereum exchange finance finance-trading p2p trade trading trading-automatically usdt

Last synced: 18 May 2026

https://github.com/mfridman/cryptopals

My solutions for http://cryptopals.com, written entirely in Go, sprinkled with concurrency

cryptography cryptopals go golang

Last synced: 16 Mar 2025

https://github.com/stackoverflowexcept1on/frost-patches

Patches for ZcashFoundation/frost repository

cryptography elliptic-curves patches rust schnorr schnorr-signatures threshold-cryptography

Last synced: 18 Apr 2026

https://github.com/5obhan/cs01-image-steganography

Hiding Information Inside an Image using AES-CBC Encryption & Least-Significant-Bit Steganography

aes aes-256 aes-cbc aes-cbc-256 aes-cbc-encryption aes-encryption cryptography cyber-security cybersecurity encrypted-data encryption-decryption image-steganography least-significant-bit lsb-bit-manipulation lsb-steganography steganography

Last synced: 05 Aug 2025

https://github.com/kcbojanowski/cryptographyappproject

App that helps you deal with classical algorithms of cryptography as well as RSA algorithm and Shamir's Secret Sharing Scheme.

cryptography python3

Last synced: 16 Mar 2025

https://github.com/coditheck/cybernet

cryptography pki python

Last synced: 25 Mar 2025

https://github.com/frostbyte012/cryptography-network-security-lab-assignment-nit-sikkim

This repo is all about the cryptography techniques that we use in our daily lives

cryptography encryption-algorithms encryption-decryption network-security python3

Last synced: 26 Jun 2025

https://github.com/enkore/zignify

Re-implementation of OpenBSD signify(1) in Zig (first code in Zig)

crypto cryptography signify zig

Last synced: 25 Mar 2025

https://github.com/mrummanhasan/cryptography

cryptography extended-euclidean-algorithm traditional-cipher

Last synced: 11 Jun 2026

https://github.com/daimdn/cryptography-messageencryption

Brief tutorial of Cryptography. Based on previous solutions. Can be used along for sending messages

cryptography java

Last synced: 06 Sep 2025

https://github.com/sambhu431/salt-based-encryption-and-decryption

Securely encrypt and decrypt files and folders using salt-based, password-protected methods. Protect your data from hacking, leakage, and theft.

cryptography datasecurity decryption encryption encryption-decryption fernet fernet-cryptography fernet-decryption fernet-encryption fernet-key pbkdf2 pbkdf2-hmac pythonen salt security

Last synced: 09 Apr 2025

https://github.com/vinicius-gabriel-p-leitao/python-rsa-cryptography

Desafio_CriptografiaRSAPython

cryptography estudos faculdade python rsa

Last synced: 04 Sep 2025

https://github.com/xm0onh/stateviz.dev

Interactive visualization playground for blockchain data structures. Learn how blockchains organize and store data through hands-on exploration and visual experimentation.

algorithms blockchain cryptography data-structures educational ethereum merkle-trie playground

Last synced: 12 Apr 2026

https://github.com/hashlag/genc

Command line file encryption tool in GoLang

cryptography golang

Last synced: 12 Jul 2025

https://github.com/rstacks/downunderctf2024-writeup

Writeups for the challenges I attempted at DownUnderCTF 2024.

cryptography ctf ctf-writeups forensics osint reverse-engineering web-exploitation

Last synced: 13 Apr 2026

https://github.com/omarbazaraa/security_rsa

Implementation of the RSA algorithm.

algorithms cryptography decryption encryption number-theory rsa-cryptography security

Last synced: 04 Sep 2025

https://github.com/cturner8/secure-chat

cryptography encryption nextjs react supabase typescript

Last synced: 12 Jan 2026

https://github.com/eroydev/bip39-rusty

Rust library for BIP-39 mnemonic system

bip39 bitcoin cryptocurrency cryptography rust

Last synced: 22 Feb 2026

https://github.com/advanced-systems/security

This library provides classes and services for symmetric and asymmetric standard cryptographic algorithms based on the .NET cryptography system.

advanced-systems cryptography

Last synced: 14 Jan 2026

https://github.com/goseind/kryptolearn

Krypto Learn - Grundlegende Konzepte der Kryptographie lernen und verstehen

cryptography expo javascript kryptografie react react-native

Last synced: 22 Feb 2026

https://github.com/pryority/merkle-next

WIP - I wanted to remake the example website from the Merkletree.js repo in Next.js

cryptography ethereum merkletreejs nextjs react tailwindcss

Last synced: 12 Apr 2026

https://github.com/rushikeshghuge-19/blockchain_django

A secure Blockchain-Based Voting System built with Django. It records votes on a custom blockchain for transparency and integrity, featuring user authentication, candidate management, and real-time vote tallying. The backend uses Django, with SQLite for data storage.

blockchain cryptography django proof-of-work python sha-256 sqlite voting-system webdevelopment

Last synced: 10 May 2026

https://github.com/Anja20/Crypto-Calculator

btc crypto crypto-bot crypto-market crypto-tools crypto-trading crypto-wallet cryptocurrencies cryptocurrency cryptography nft not notcoin ton toncoin trc tron usdt

Last synced: 11 Mar 2025

https://github.com/PRoplayer282828/CryptoTrader

bitcoin btc crypto crypto-bot crypto-helper crypto-tools crypto-trading crypto-wallet cryptocurrencies cryptocurrency cryptography cryptotrade cryptotrader nft not notcoin ton toncoin trc usdt

Last synced: 11 Mar 2025

https://github.com/inanepain/id-forge

A lightweight, versatile PHP library for generating and encoding unique identifiers. It supports base32, base58, base64, nanoid, snowflakeid, uuid, and ulid, providing fast, secure, and flexible solutions for ID generation and encoding in modern applications.

base32 base58 base64 cryptography encoding id-forge id-generation inanepain library nanoid php snowflakeid ulid unique-identifier uuid

Last synced: 14 Jan 2026

https://github.com/danutama/python-aes-encryptor

A Python-based desktop application for encrypting and decrypting various data formats using the Advanced Encryption Standard (AES 128, 192, 256-bit).

advanced-encryption-standard aes aes-128 aes-192 aes-256 aes-encryption algorithm cipher ciphertext cryptography encryption-decryption python python3 rijndael rijndael-algorithm

Last synced: 23 Apr 2025

https://github.com/xandersteyn/rsa-timing-attack

A Python script demonstrating a timing attack on RSA decryption, recovering private key bits by analyzing execution time differences.

cryptographic-analysis cryptographic-attacks cryptography cybersecurity encryption ethical-hacking key-recovery multiprocessing penetration-testing python rsa rsa-key-attack security-research timing-attacks

Last synced: 16 Mar 2025

https://github.com/kharizzakaye/message-encoder-decoder

A Python program that encodes and decodes a message. Built with Tkinter and Python Base64.

base64 cryptography python3 tkinter

Last synced: 10 Mar 2025

https://github.com/bitbynik/aes_secure_msg

COL759 Assignment-3

aes-256 client-server cryptography iitd messaging

Last synced: 28 Aug 2025

https://github.com/crybercorp/thecryptoanarchistmanifesto

The Crypto Anarchist Manifesto by Timothy C. May, written in 1988.

anarchy anonymous bitcoin cryptography dogecoin ethereum freedom manifest monero privacy

Last synced: 06 Apr 2025

https://github.com/heyIsaac/TaskManager

😎🔎 A complete CRUD API for task management, an advanced level challenge proposed by DIO.me in its bootcamp with Avanade, currently has authentication with JWT token and much more (✿◕‿◕✿)

authentication-backend bootcamp-project consuming-api cryptography csharp dotnet entity-framework-core git jwt-authentication microsoft-identity minimal-api refit

Last synced: 24 Feb 2026

https://github.com/xkrejc70/mit-bis-project

BIS - Information System Security - Project: security mechanisms and applied cryptography

cryptography hacking penetration-testing vut-fit

Last synced: 03 Jan 2026

https://github.com/ppad-tech/sha512

Pure Haskell SHA-512, HMAC-SHA512

cryptography hashing haskell sha2 sha512

Last synced: 23 Jun 2025

https://github.com/egrace479/asymmetric-cloning-bb84

Continuation of QuForce Innovation Fellows Project to implement asymmetric cloning to eavesdrop on the BB84 protocol.

bb84 bb84-protocol cryptography ionq qkd qkd-protocol quantum-computing

Last synced: 18 Jan 2026

https://github.com/tsovak/a-cryptographic-hash-function

A Cryptographic Hash Function

cpp cryptography hash-functions

Last synced: 02 Apr 2025

https://github.com/eugenedakin/feistelciphernetwork

Feistel Cipher Network Cryptography

api2 cryptography encryption feistel feistel-cipher feistel-network xojo

Last synced: 07 Jan 2026

https://github.com/oelshocht/javacryptotoys

Java bytecode strings encryption and file signing

bytecode cryptography java security-tools

Last synced: 20 Jun 2026

https://github.com/rdrahul123/books

Books must be read as deliberately and reservedly as they were written.

algorithms-and-data-structures blockchain books cryptography datastructures dbms machine-learning mongodb sql

Last synced: 12 Jun 2025

https://github.com/radriann21/passify

an password generator that allows to the user generate based on the options and copy the password

chakraui cryptography nextjs typescript zustand

Last synced: 12 Apr 2026

https://github.com/ia/crypto

crypto means cryptography

base64 challenges cryptography perl xor

Last synced: 11 Feb 2026

https://github.com/transmute-industries/linked-data-signature-starter-kit

JSON-LD Signature Starter Kit

cryptography json-ld

Last synced: 16 Jul 2025

https://github.com/trinhminhtriet/vault

🔐 Decrypt and manage encrypted data with a CLI tool built using Go and Cobra framework.

cli cryptography decryption encryption go rsa security

Last synced: 09 Apr 2025

https://github.com/rani-abha/cryptography_algorithms

In this repository, I've gathered a collection of cryptographic algorithms that I've learned during my college years and implemented for both learning and practical purposes.

algorithms blacklist cipher-algorithms cryptography digitalsignature firewall-rules playfair-cipher sha1-hash whitelist

Last synced: 06 Jul 2025

https://github.com/yawning/musig2-voi

Go MuSig2 (w/secp256k1) (Mirror)

cryptography cryptography-algorithms go golang musig2 schnorr-signatures secp256k1

Last synced: 11 Mar 2025

https://github.com/karim-agha/rc5

RC5 Cipher Implementation in Rust

cryptography rust security

Last synced: 24 Mar 2025

https://github.com/samuel-lucas6/hkdf.net

A .NET implementation of HKDF, with support for SHA256, SHA384, and SHA512.

cryptography hash hkdf hmac hmac-sha256 hmac-sha384 hmac-sha512 kdf key-derivation key-derivation-function key-exchange key-exchange-protocol sha256 sha384 sha512

Last synced: 27 Mar 2025

https://github.com/alvii147/jwgo

Efficient JWT creation and parsing in Go

cryptography golang jwt

Last synced: 14 Jun 2025

https://github.com/samuel-lucas6/ctx.net

Chan and Rogaway's fully committing AEAD construction using ChaCha20-Poly1305 and BLAKE2b-160.

aead blake2 blake2b chacha20 chacha20-poly1305 chacha20poly1305 committing-aead crypto cryptography key-committing poly1305

Last synced: 27 Mar 2025

https://github.com/a-s-russo/eleventh-hour-mystery

Decipher the paragraph of ciphertext in 'The Eleventh Hour: A Curious Mystery' by Graeme Base at the end of the book using a Caesar cipher

caesar-cipher cryptography

Last synced: 29 May 2026

https://github.com/primetdmomega/bay-cracker

A set of tools for encryption, decryption of messages and to create new cyphers !

cryptography decryption encryption

Last synced: 25 Mar 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/juliuspleunes4/noiseframework

Noise Protocol Framework in Python.

cryptography noise pypi python

Last synced: 14 Jan 2026

https://github.com/isaac-defrain/cryptography

Crypto BIP (Book In Progress)

crypto cryptography python

Last synced: 29 Jun 2025

https://github.com/mananpatel06/information-security-practicals

This is Cryptography And Security Practical.

caesar-cipher-algorithm ce348 crns cryptography cspit depstar diffie-hellman-algorithm digital-signature-algorithm hill-climbing-algorithm information-security onetimepad playfair-cipher practicals railfence-cipher rsa-algorithm security

Last synced: 13 Jun 2026

https://github.com/osennij-morok/korobu

A tool for encryption and decryption written in Rust

cryptography egui rust

Last synced: 10 Sep 2025

https://github.com/xdv/divvy-wallet

Divvy Wallet Generator

cryptocurrency cryptography divvy secret test-vectors xdv

Last synced: 16 Jan 2026

https://github.com/hungrybluedev/python-basic-cryptography

Implemenation of basic Cryptography techniques and algorithms, along with tools useful for analysis.

algorithm cryptography python3

Last synced: 08 Apr 2025

https://github.com/aaditya29/python-programmes

ciphers cryptography python

Last synced: 01 Apr 2025

https://github.com/aelx01/kyberkeep

An experimental web-based and quantum-safe cryptography password manager with zero-knowledge cryptography

cryptography password-manager post-quantum-signature rust

Last synced: 06 Sep 2025

https://github.com/mariankapisinsky/FIT-VUT-NNET

Some of the school assignments from my master's degree study.

asynchronous-programming cryptography digital-forensics fit functional-programming graph-algorithms influxdb networking parallel-algorithms tls-fingerprint vut web-applications

Last synced: 11 Mar 2025

https://github.com/albertotirla/cryptolibrary

this implements a collection of standard, classical encryption algorythms such as the caesar cifer, rot13 and monoalphabetical substitution

cryptography

Last synced: 03 Apr 2025

https://github.com/mpankajarun/file-encryption-and-decryption

This app is an experiment that will allow people to choose files from their computers and encrypt them client-side with a pass phrase.

cryptography cryptojs javascript

Last synced: 04 May 2026

https://github.com/thesreale/crypto-factory-cf-eth-checker-drainer-balance-mnemonic

Ethereum wallets use cryptography and BIP39 standards to generate secure keypairs, mnemonics, and seed phrases. Hardware and cold wallets ensure safe storage, while balance checkers track funds on the blockchain.

balance balance-checker bip39 bitecoin blockchain cold-wallet crypto crypto-wallet cryptography ethereum hardware-wallet keypair mnemonic mnemonic-phrase seed seed-phrase wallet wallet-checker

Last synced: 09 Apr 2025

https://github.com/realabbas/offline-blockchain-transaction-signing-private-wallet

A private offline wallet for signing incoming transaction from web interface

cryptography offline public-private-key qrcode signing transaction wallet

Last synced: 29 May 2026

https://github.com/arnaldo10cisne/cryptography__python_app

This program can encrypt and decrypt arrays of English words. The word API used to validate words and obtain random ones is: https://random-word-api.herokuapp.com

cryptography pyhon3 pyhton

Last synced: 26 Mar 2025

https://github.com/maksmez/ids_update_vkr

Проект разработанный для автоматического обновления баз правил системы VipNet IDS.

cryptography logging python selenium smtplib sqlalchemy sqlite yattag

Last synced: 10 May 2026

https://github.com/buhman/rijndael

fast AES implementation for CHICKEN scheme

aes chicken-scheme cryptography

Last synced: 02 Apr 2025

https://github.com/cedi/cryptopals

http://cryptopals.com

challenge cryptography cryptopals

Last synced: 09 Apr 2025

https://github.com/akornatskyy/wheezy.security

A lightweight security/cryptography library

cryptography python security wheezy

Last synced: 28 Apr 2025

https://github.com/go-universal/cryptography

🔐 Cryptography utilities for Go.

asymetric-cryptography cryptography golang hashing symetric-cryptography

Last synced: 10 Apr 2025

https://github.com/angeldollface/doll-cipher

A Rustacean implementation of an encryption algorithm of my own design. :lock: :dolls:

aes-encryption cryptography rust-lang rust-library

Last synced: 29 May 2026

https://github.com/hrichharms/salsa20

Salsa20 stream cipher implemented in Haskell

cryptography salsa20 stream-cipher xor-cipher

Last synced: 08 Apr 2025

https://github.com/psygo/cryptography_course

A Cryptography Course from Udemy

cryptography python

Last synced: 07 Dec 2025

https://github.com/salrashid123/ocicrypt-tpm-keyprovider

OCICrypt provider for Trusted Platform Modules (TPM)

cncf containers cryptography encryption oci trusted-platform-module

Last synced: 16 Mar 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/nunees/trabalho_rsa_unip

Implementação do algoritmo RSA básico.

cryptography python rsa-cryptography

Last synced: 20 Mar 2025

https://github.com/antonio-marasescu/edublock

EduBlock represents a private blockchain platform intended for the sharing of educational records between universities. It was created to serve as my bachelor thesis degree.

angular blockchain cryptography docker expressjs gulp ngrx nodejs rabbitmq redux typedi typeorm typescript

Last synced: 13 Apr 2026

https://github.com/omarbazaraa/security_des_mac

Implementation of DES and MAC algorithms.

authentication cryptography decryption des-cipher encryption mac security

Last synced: 10 May 2026

https://github.com/uofsc-fall-2022-math-587-001/homework4

Introduction to the discrete logarithm problem and a comparison of symmetric vs asymmetric ciphers

cryptography discrete-logarithm go latex math

Last synced: 20 Apr 2026

https://github.com/smartibase/smart-transformers

Smart Transformers are a versatile machine learning tool that can be integrated with Pytorch, TensorFlow, and JAX. Smart transformers provide accurate computations required for cryptographic algorithms. These transformers is that they are independent modules, making it efficient to experiment with various research projects related to cryptanalysis

algorithms crypto cryptocurrency cryptography deep-learning jax machine-learning pytorch tensorflow transformer