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: 2026-06-23 00:06:53 UTC
JSON Representation

https://github.com/instantwebp2p/nacl-cert

AIoT NACL Certification System

aiot cryptography nacl nacl-cert security-protocol

Last synced: 08 Apr 2026

https://github.com/volkanbicer/theblockchain

Blockchain application created with nodejs

blockchain cryptocurrency cryptography nodejs

Last synced: 16 May 2026

https://github.com/cipherstash/enveloperb

Ruby bindings for the envelopers envelope-encryption library

cipherstash cryptography encryption envelope-encryption ruby

Last synced: 07 May 2025

https://github.com/hubenchang0515/cryptography

Cryptography Hash Algorithm - 消息摘要算法库

cryptography md5 sha sha2

Last synced: 25 Jan 2026

https://github.com/jtdowney/b2sum-rs

Rust clone of the BLAKE2b checksum utility in GNU coreutils

blake2b coreutils cryptography rust

Last synced: 14 Apr 2025

https://github.com/alhonaut/zkp-grpc-server

Chaum-Pederson Zero-Knowledge Proof in Rust with gRPC and Docker

cryptography grpc rust

Last synced: 03 May 2026

https://github.com/mewmix/erc5564py

A python implementation of ERC5564 for Stealth Addresses on Ethereuem as described https://eips.ethereum.org/EIPS/eip-5564

cryptocurrency cryptography ecdsa-cryptography erc5564 ethereum python stealth-addresses

Last synced: 16 May 2026

https://github.com/cmason3/vaulty.rs

Vaulty in Rust - Encrypt/Decrypt with ChaCha20-Poly1305

chacha20-poly1305 cryptography rust-lang scrypt sha256

Last synced: 26 Jul 2025

https://github.com/pandh4cker/encode-decode-morse-code

Encode&Decode Morse Code

binary-search-tree binary-search-trees binary-tree binary-trees c cryptography morse morse-code morse-codes morsecode morsedecode recursion recursive recursive-algorithm sdl2 sdl2-image sdl2-library sdl2-ttf

Last synced: 25 May 2026

https://github.com/ndxdeveloper/slashsum

Fast multi-threaded checksum calculator (CRC32, MD5, SHA1, SHA256, SHA512)

checksum cli-tool concurrent-processing crc32 cross-platform cryptography data-integrity file-integrity file-validation file-verification hash-calculator md5 multi-threaded parallel-computing performance rust sha1 sha256 sha512 utility

Last synced: 08 Apr 2026

https://github.com/cmason3/vaulty.go

Vaulty in Go - Encrypt/Decrypt with ChaCha20-Poly1305

chacha20-poly1305 cryptography ecdh golang scrypt sha256 x25519

Last synced: 26 Jul 2025

https://github.com/yrotak/d-1

D-1 is an open source symmetric encryption algorithm

crypto cryptography d-1 done encryption encryption-algorithms encryption-decryption symetric-key

Last synced: 23 Feb 2025

https://github.com/ggeorgovassilis/webencryption

Simple (offline) HTML and Javascript for encrypting stuff

cryptography javascript security web

Last synced: 05 Apr 2025

https://github.com/kartmaan/filecrypt

Python script to encrypt and decrypt files

aes aes-128 argparse argparser command command-line cryptography cryptography-library cryptography-tools decryption encryption encryption-decryption fernet files script sha-256

Last synced: 15 Jun 2025

https://github.com/can-deliktas/passforge

PassForge is a flexible and secure password generator that creates strong, customizable passwords with letters, numbers, and special characters. It ensures quick and reliable password generation for enhanced security.

cryptography cybersecurity gui pass password password-generator passwords python random-password-generator safe terminal-graphics tkinter-gui

Last synced: 09 Mar 2026

https://github.com/vaultie/teddybear

🧸 JS/TS/Rust library for verifiable credentials and common cryptographic operations

client-side-encryption cryptography javascript jwe jws jwt rust typescript verifiable-credentials wasm

Last synced: 13 May 2025

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/agucova/oxcrypt

A fast, memory-safe Cryptomator client written in Rust.

cryptography cryptomator filesystem fuse rust vault

Last synced: 15 May 2026

https://github.com/ergl/sss

Basic Shamir's Secret Sharing

cryptography pony-language shamir shamir-secret-sharing

Last synced: 06 Feb 2026

https://github.com/ecies/py-demo

A simple fastapi eciespy web backend demo

cryptography ecies fastapi python3 secp256k1 webdemo

Last synced: 12 Apr 2025

https://github.com/spectre7651/crypta

Reasonably Good Encryption and Decryption Software (Python 3)

cryptography cybersecurity encryption python3

Last synced: 05 Jun 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/chakshugupta13/local-collision-differential-attack-on-reduced-sha-256-upto-24-rounds

This repository contains C and/or C++ implementations for finding Local Collision Conforming Message Pairs through Differential Attack on Reduced-Round SHA-256 up to 24 Rounds. Also, this repository contains the C++ implementations of SHA-256, SHA-512 and SHA-384.

cryptanalysis cryptography differential-attack sha-256 sha-384 sha-512

Last synced: 11 Apr 2025

https://github.com/daim-nickel-penny/elixir

BlockChain based simple DAPP

blockchain-technology cryptography javascript

Last synced: 18 Jul 2025

https://github.com/rohitanwar/cryptography

An exploration of various cryptographic functions (and related stuuf)

cryptography sha1 zig ziglang

Last synced: 21 Aug 2025

https://github.com/thyeem/longshot

Fast Brute-force search using parallelism

brute-force-attacks cryptography haskell parallelism

Last synced: 06 May 2025

https://github.com/hsbc/encryption-helper-python

A Python CLI application for generating RSA public and private key pairs.

automation cryptography data-protection devops-tools encryption hsbc key-generation key-management open-source poetry-python public-key python python-rsa python-rsa-key-pairs-public-key-private-key rsa security

Last synced: 14 Jul 2025

https://github.com/anshvaid4/python

This repo is for those who want to get idea how tools in cyber security domain are created. I will add more codes shortly.

cryptography information-security python3 rpa-robots security

Last synced: 27 Mar 2025

https://github.com/megrxu/cryptopals

Solutions for crypto challenges in crablang.

algorithms crypto cryptography rust

Last synced: 27 Mar 2025

https://github.com/lancejpollard/hash

Hashing Function Theory

cryptography group-theory hash-functions mathematics papers

Last synced: 28 Oct 2025

https://github.com/intricate/paseto-haskell

A Haskell implementation of PASETO (Platform-Agnostic Security Tokens).

cryptography haskell jwt paseto security token

Last synced: 10 Apr 2025

https://github.com/stripedpajamas/cryptopals-resources

resources to help solve cryptopals challenges without spoiling anything

cryptography cryptopals cryptopals-challenges cryptopals-crypto-challenges help information infosec links resource

Last synced: 19 Jan 2026

https://github.com/ibnaleem/cipherlock

🔐 Encrypt Your Files and Directories

cipher cipher-algorithms cryptography encryption encryption-algorithms encryption-decryption encryption-tool file-encryption

Last synced: 08 Jul 2025

https://github.com/dolutech/cryptnote-php

A PHP library for creating encrypted, self-destructing messages with view limits and optional password protection

aes-256 cryptography encryption one-time-secret password-protection php-library secure-notes security self-destructing-messages sqlite

Last synced: 17 Jan 2026

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

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

aes-encryption argon2 crypto cryptography cypherpunks databaseless device-driver freebsd gcm infosec kernel-module linux minimalistic out-of-the-box password-generator password-manager privacy-tools strong-cryptography suckless windows

Last synced: 06 May 2026

https://github.com/10d9e/rs-fast-merkle

Rust Implementation of Streaming Merkle Root, Proof, and Verify (single leaf) from Luke Champine's paper: Streaming Merkle Proofs within Binary Numeral Trees

cryptography merkleproof merkletree rust

Last synced: 22 Jul 2025

https://github.com/maymeow/php-cryptography

🔐 Cryptographic library for PHP

cryptography hacktoberfest hacktoberfest2021 php php-library

Last synced: 26 Jun 2025

https://github.com/mrdcvlsc/bytepadding

A collection of different byte padding methods

alignment ansix923 block block-cipher block-cipher-mode byte-array c-plus-plus cplusplus cpp cryptography data-processing data-stream fill iso-iec-7810 library memory memory-management padding pkcs5 pkcs7

Last synced: 18 Jul 2025

https://github.com/cartory/encoderr

🔐 Basic Algorithms for Decoding & Encoding

cryptography decoding encoding javascript

Last synced: 17 May 2026

https://github.com/sandeep-shaw10/cshb-model

This project aims to develop a secure and efficient model for end-to-end encrypted data transfer between a client and server, with a focus on promoting data integrity via hybrid blockchain

aes-512 blockchain cryptography cshb cshb-model end-to-end-encryption hybrid-blockchain steganography

Last synced: 06 Apr 2025

https://github.com/simplito/privmx-endpoint-swift

Swift wrapper for the native C++ library used by PrivMX to handle end-to-end encryption.

chat communication cryptography data-transfer decryption e2ee end-to-end-encryption files messaging privacy privacy-protection private privmx secure simplito storage swift thread zero-knowledge

Last synced: 18 Jun 2026

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

🛡learn and watch how crypto work in Go

const crypto cryptography golang-library hash key privatekey sha

Last synced: 12 Jan 2026

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

A Nim library simplifying connection to the ARK blockchain

blockchain cryptography nim

Last synced: 25 May 2026

https://github.com/hoangtran0410/chat-3des

Online Chat Application, encrypt data using TripleDES + RSA

chat-application cryptography des-crypto javaswing rsa socket-java triple-des tripledes

Last synced: 27 Mar 2025

https://github.com/isakruas/ecdp

The Elliptic Curve Data Protocol (ECDP) is a P2P communication protocol for decentralized networks, utilizing elliptic curve cryptography (ECC) for encryption, ECDSA for message authentication, and Diffie-Hellman key exchange for secure sessions. It operates over TCP and UDP.

cryptography data-security decentralized-networks diffie-hellman-key-exchange ecdsa elliptic-curve-cryptography encryption message-authentication peer-to-peer protocol secure-communication session-initialization tcp udp

Last synced: 06 May 2025

https://github.com/prongbang/aes_ctr

AES CTR - Counter Flutter plugin.

aes-ctr aes-ctr-mode cryptography decryption encryption flutter

Last synced: 04 Jan 2026

https://github.com/ahmedemad242/secure-shared-file-storage

Project aims to create a secure platform for file sharing using File Transfer Protocol (FTP) and hybrid cryptography. The project involves building an FTP server and client application in Python, as well as implementing multiple cipher encryption to protect the transferred files

cryptography encryption ftp python

Last synced: 04 Apr 2025

https://github.com/zaidmukaddam/securitymobileapp

This project is a demonstration of some cryptography algorithms using Flutter Framework.

aes cryptography encryption rsa

Last synced: 18 Jun 2025

https://github.com/moeraorg/typescript-moeralib

TypeScript (or JavaScript) library to interact with Moera decentralized social network

cryptography decentralized javascript javascript-library library moera social-network typescript typescript-library

Last synced: 06 Apr 2025

https://github.com/bdr-pro/blockchain_maker

this is your ultimate toolkit for building, validating, and managing a blockchain in Rust.

blockchain cryptocurrency cryptography rust

Last synced: 15 Mar 2025

https://github.com/darxisr/salsa20

Salsa20 encryption/decryption without libraries with GUI

cipher cryptography decryption development encryption gui open-source pyqt5 python salsa20 source-code tools

Last synced: 03 Apr 2025

https://github.com/aliabbascheema/cryptographic_and_authentication

This project demonstrates the practical implementation and comparison of cryptographic techniques and authentication protocols Kerberos and OAuth 2.0 in cloud environments.

aes-encryption cryptography jinja2 kerberos-authentication matplotlib oauth2 performance-testing requests requests-oauthlib

Last synced: 03 Apr 2025

https://github.com/max9836/sniper-cryptography

This is a command-line encryption and decryption tool leveraging military-grade encryption standards. It is lightweight, easy to use, and optimized for secure data operations.

aes-encryption command-line-tool cryptography encryption encryption-decryption encryption-tool go golang new-algorithm rsa-encryption sha-256 sha-512 sha3-256 sha3-512 shake256 xor-encryption

Last synced: 20 Jun 2026

https://github.com/2kabhishek/pycipher

Cipher algorithms with Python 🐍🔏

algorithm cipher cryptography library python tdd unittest

Last synced: 28 Oct 2025

https://github.com/jshawl/minisign

minisign, in ruby!

cryptography ed25519 minisign signature signature-verification

Last synced: 19 Oct 2025

https://github.com/vcsjones/xaes-256-gcm-ruby

XAES-256-GCM for Ruby

cryptography ruby xaes-256-gcm

Last synced: 12 Dec 2025

https://github.com/louislefevre/rsa

RSA cryptosystem for demonstrating the encryption and decryption of messages

algorithm cryptography decryption encryption rsa

Last synced: 30 Mar 2025

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/krutonium/arbitarycompression

"Compresses" Arbitrary files using MD5 cryptography. In theory, one can fully recover all the data, if they throw enough CPU power at it.

actually-terrible compression cryptography md5

Last synced: 10 Apr 2025

https://github.com/fbielejec/zksnarks-notes

notes & explorations of various zero knowledge protocols

cryptography elliptic-curves pairings snarks zero-knowledge

Last synced: 12 Jan 2026

https://github.com/hubert-kniola/diffi-hellman-algorithm

Algorithm based on the calculation of discrete logarithms in finite bodies

cryptography csharp diffie-hellman-algorithm

Last synced: 12 Apr 2025

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

OPF framework for shared keys built from sensitive data

cryptography dropwizard java opaque oprf pake password-authentication rfc9497 rfc9807 spring-boot typescript

Last synced: 10 May 2026

https://github.com/hamarshehmhmd/passgenerator

PassGen is a simple command-line password generator written in Python. It allows users to customize password criteria by toggling lowercase and uppercase letters, digits, and special characters on and off. PassGen uses the secrets module to generate cryptographically secure random passwords of variable length.

command-line cryptography password-generator python security

Last synced: 29 Mar 2025

https://github.com/gdibble/udacityrocks

Udacity Coursework

bitcoin cryptography decentralized-applications ethereum ganache hapijs infura javascript metamask mocha-chai nodejs nosql-database restful-api smart-contracts solidity-dapps truffle web3js

Last synced: 08 Apr 2026

https://github.com/esno/ciphertext

a simple web-ui to crypt / decrypt text locally

aes-encryption cryptography webcryptoapi

Last synced: 27 Jun 2025

https://github.com/hubert-kniola/blumblumshubgenerator

BlumBlumSnub Generator - Random Bit Array with 4 prepared tests

bbs cryptography generator

Last synced: 07 Sep 2025

https://github.com/hubert-kniola/digitalsignature

Simple program to verify signature created by RSA cryptography algorithm

cryptography ed25519 rsa

Last synced: 12 Apr 2025

https://github.com/lgraubner/secure-passphrase

Small PWA for generating secure passphrases

cryptography passphrase password password-generator secure

Last synced: 11 Jan 2026

https://github.com/snowkelus/reave

Reave - DOSS (Developer Open-Source Software) is a Cryptography Network-based Framework (CNF) for PHP, Which uses Fingerprints, Message Block Cipher, and Asymmetric / Symetric Cryptography, PATs (Personal Access Token) for Messages / IMs (Session-based) and Page View Algorithms..

cryptography framework snowkelus

Last synced: 02 Feb 2026

https://github.com/spatocode/secrecy

Cryptographic tool for file encryption with AES Cipher

aes-cipher cli cryptography decryption encryption encryption-tool secrecy security

Last synced: 10 Apr 2026

https://github.com/petrknap/php-crypto-sodium

The library that packages functional `sodium_crypt_*` into objects.

aead aes asymmetric-cryptography block-cipher chacha20 cryptography curve25519 decryption encryption php php-library poly1305 public-key-cryptography secret-key-cryptography security sodium stream-cipher symmetric-cryptography x25519 xchacha20

Last synced: 10 Jul 2025

https://github.com/tmc/cryptopals

hack the planet

cryptography golang

Last synced: 07 Sep 2025

https://github.com/yanboishere/Trade.with-SuperTrend.parameter

OKX API to confirm the process of appearance and disappearance of upper or lower limit lines for the super trend parameters in crypto trading pairs in TraderView, and perform multiple buying and selling transactions based on this parameter index.｜对于crypto交易对中 TraderView中的超级趋势参数出现以及消失上限线或下限线前后过程进行确认从而根据该参数指标的出现进行多次合约做多&做空开仓买卖（使用OKX api）

bitcoin blockchain bot btc crypto cryptocurrency cryptography numpy okx okx-api okx-sdk okx-v5 python talib trade trade-bot tradebot

Last synced: 22 Oct 2025

https://github.com/starone01/phrasenux

PhraseNUX is a command-line password manager and a command-line password generator specially made for Linux. It's a powerfull as well as secure command-line application.

aes aes-encryption autoupdater c-plus-plus command-line-app command-line-interface command-line-password-manager command-line-tool cpp cryptographically-secure cryptographically-secure-random cryptography encrypt encryption encryption-decryption password password-generator password-manager secure-by-default sha256

Last synced: 30 Mar 2025

https://github.com/nthparty/rbcl

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

bn254 cryptography cryptography-library elliptic-curve elliptic-curve-cryptography elliptic-curves libsodium pairing pairing-cryptography python-wrapper python-wrapper-library python-wrappers ristretto ristretto255 sodium sodium-library

Last synced: 16 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/openzebra/argon2.pure.js

A pure TypeScript/JavaScript implementation of the Argon2

argon2 argon2id cryptography hash hashing password-hash

Last synced: 07 Mar 2026

https://github.com/sheroz/sheroz

back-end cryptography databases distributed-systems rust security

Last synced: 01 Mar 2026

https://github.com/volkansah/how-to-kill-crypto-money

Mr.Robot -> How to Kill Crypto Money? This document demonstrates how to use Python and the mnemonic library to generate a seed phrase and derive a private key. This code is intended for demonstration purposes only and should never be used with real funds or your actual hardware wallet.

bitcoin crypto cryptocurrency cryptography damage kill monero wallet

Last synced: 09 Feb 2026

https://github.com/apavazza/passwordmanager

A command line password manager

cpp cryptography encryption password-manager

Last synced: 17 Mar 2025

https://github.com/gabrioliv/octave-crypto-scripts-general

Scripts of Cryptography Concepts compatible with GNU Octave.

crypto cryptography gnu-octave learning mathematical-programming mathematics number-theory octave octave-scripts programming testing

Last synced: 15 May 2026

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

比特币密码分析工具

attack bitcoin bitcoin-wallet btc cryptoanalysis cryptography privatekey secp256k1 vulnerability

Last synced: 10 Mar 2026

https://github.com/varun-doshi/modc

Rust Library for Finite Field Arithmetic

cryptography mathematics zk

Last synced: 10 Jun 2026

https://github.com/dk14/mega-peers

A p2p fact sharing network

cryptography oracle p2p p2p-exchange p2p-network trading wolfram

Last synced: 22 May 2026

https://github.com/olucascruz/securechat_frontend

Frontend de aplicação web de chat com criptografia

chat cryptography react reactjs vite

Last synced: 16 May 2026

https://github.com/christian-doucette/code_breaker

Cryptography web app with encryption and automatic decryption functions for various ciphers. Built with Flask.

cryptography flask nlp

Last synced: 11 Apr 2026

https://github.com/btylrob/apikitten

API Key and Token Storage App with AES Encrpytion

aes command-line cryptography go golang

Last synced: 26 Feb 2025

https://github.com/milan-sedivy/confidential_multi_vote_system

This project demonstrates principles of a protocol outlined in my master thesis. The protocol is a superset of the Practical Multi-Candidate Election System (Baudron et. al 2001). It focuses on allowing the user to vote for multiple choices and to have multiple votes (an example of a shareholder meeting is implemented here)

anonymity cryptography end-to-end-encryption homomorphic-encryption privacy voting-application