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/thomasthaddeus/algorithmselector

Explore our extensive Algorithms Repository, featuring a diverse range of algorithms from computational methods to data structures, cryptographic techniques, and AI. Ideal for education, research, and practical application, each algorithm is well-documented, tested, and optimized for performance and readability.

ai algorithms computational-algorithms computer-science cryptography data-compression data-structures educational-resource game-theory graph-theory machine-learning network-flow open-source optimization python

Last synced: 01 Mar 2026

https://github.com/protdos/zyphor

Zyphor: A quantum-safe, fully anonymous chat protocol ensuring complete security and metadata protection.

anonymity chat cryptography e2ee encryption messaging metadata perfect-forward-secrecy post-quantum-cryptography privacy protocol security zero-knowledge zero-trust

Last synced: 02 Mar 2026

https://github.com/scar26/votesec.io

An automated voting platform based on Azure Blockchain that offers complete anonymity, instantaneous results and a plethora of other features

blockchain cosmosdb cryptography iot node-chakra solidity truffle

Last synced: 03 Mar 2026

https://github.com/jedisct1/gimli-constructions

Cryptographic constructions based on the Gimli permutation.

crypto cryptography gimli

Last synced: 05 Mar 2026

https://github.com/michpro/xtea-cipher

XTEA cipher library, with MAC support, for the Arduino environment.

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Last synced: 17 Apr 2026

https://github.com/shahradelahi/timing-safe-compare

🔐 Isomorphic constant-time string and buffer comparison to prevent timing attacks.

browser constant-time cryptography isomorphic nodejs security timing-attack

Last synced: 03 Apr 2026

https://github.com/cfcs/ocaml-poly1305

MirageOS-friendly bindings to Poly1305 C-stubs from WireGuard

cryptography mirageos ocaml poly1305

Last synced: 17 Apr 2026

https://github.com/satyakwok/sentrix

Fast, deterministic Layer-1 blockchain for payments, tokens, and decentralized apps.

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Last synced: 18 Apr 2026

https://github.com/hobbyquaker/passwd-file

Node.js Password File CLI Tool and Lib :closed_lock_with_key:

cli cryptography file hash login nodejs password pbkdf2 salt security sha512

Last synced: 24 Apr 2026

https://github.com/stevehjohn/security

Various useful classes for information security

cryptography csharp dotnet shamir

Last synced: 28 Apr 2026

https://github.com/demining/private-key-debug

Private key Debug: Incorrect generation of private keys, system vulnerabilities and errors in calculating the order of the elliptic curve secp256k1 threats to the Bitcoin ecosystem

bitcoin bitcoin-wallet crypto cryptocurrency cryptography ecc elliptic-curve-cryptography privatekey secp256k1 vulnerability

Last synced: 01 May 2026

https://github.com/hussamsh/nova

Image Cryptography application based on chaotic maps built with Typescript and ElectronJS :electron:

chaos chaotic-map cryptography dynamical-systems electron images maps react

Last synced: 04 May 2026

https://github.com/jasondrawdy/autoarchiver

An advanced and flexible auto-archiving tool that allows the archiving of both individual files and entire directories using set intervals.

application archiving automation backup cryptography dotnet encoding security utilities windows

Last synced: 08 May 2026

https://github.com/jnm2/threshold

Paper backup requiring a chosen K of N pieces to decrypt. Useful for storing passwords, private keys for PGP or Bitcoin, recovery codes, secret instructions, and small files. Work in progress.

backup bitcoin cross-platform cryptography csharp digital dotnet-core encrypt paper password pgp print private-key redundancy secret-sharing security shamir threshold wallet

Last synced: 10 May 2026

https://github.com/timthedev07/cipher.py

Python ciphers

cipher cryptography python

Last synced: 18 Jun 2026

https://github.com/unikraft/lib-libhogweed

Port of libhogweed to Unikraft

cryptography library unikraft

Last synced: 20 Jun 2026

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

Cryptography Project

cryptography encryption-decryption python3

Last synced: 09 May 2026

https://github.com/timjp87/elixir_bls

Wrapper around the Herumi BLS 12-381 Elliptic Curve construction and signature aggregation scheme.

cryptography ecdsa-cryptography ecdsa-signature elixir elixir-lang signatures

Last synced: 30 May 2026

https://github.com/0x00-0x00/crypt

Crypt is a cryptography tool to protect all kinds of data using AES-256 and RSA-4096 algorithms.

aes cryptography decryption encryption python rsa

Last synced: 09 Jul 2025

https://github.com/inferadb/ledger

InferaDB Ledger — distributed database purpose-built for authorization.

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Last synced: 14 Jun 2026

https://github.com/valera-rozuvan/text-crypt

node js library and cli to simplify text crypto

cryptography nodejs text

Last synced: 29 Apr 2026

https://github.com/mohamed/pysss

A Python implementation of Shamir's secret sharing algorithm

computer-security cryptography

Last synced: 14 Jan 2026

https://github.com/CorvidLabs/swift-algochat

🔐 Encrypted messaging on Algorand. Your keys, your messages, your blockchain.

algorand async-await blockchain chacha20-poly1305 cryptography decentralized encryption end-to-end-encryption hkdf messaging privacy psk quantum-resistance swift swift-package-manager x25519

Last synced: 23 May 2026

https://github.com/ilyakotsar/e2ee-js

End-to-End Encrypted Chat You Can Trust

chat cryptography diffie-hellman-algorithm encryption end-to-end-encryption messenger

Last synced: 18 Mar 2025

https://github.com/roberthgnz/walletfy-cli

Walletfy command-line tools for wallet management.

btc cli cryptocurrency cryptography wallet

Last synced: 14 Mar 2025

https://github.com/mostafa-wael/number-theory-and-cryptography-rsa

The RSA assignment from Coursera course "Number Theory and Cryptography"

coursera cryptography rsa

Last synced: 16 Mar 2025

https://github.com/edgarogh/camerash

Little educational app to create entropy/randomness from a video input

android cryptography educational hash random

Last synced: 07 Jan 2026

https://github.com/codesteel/expressjs-login-application

authentication cryptography expressjs login

Last synced: 01 May 2026

https://github.com/elliotwutingfeng/balloon-hashing-kotlin

Balloon Hashing implemented in Kotlin.

crypto cryptography gradle hash java kdf-algorithm key-derivation-function kotlin password

Last synced: 01 May 2026

https://github.com/pmielech/stm32-rectenna

Portable radio noise measurement system, based on an STM32f303re microcontroller.

cryptography randomness randomness-generation rectenna rng signal-processing stm32 stm32f303 wifi

Last synced: 08 Jun 2026

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

ビットコイン暗号解析ツール

attack bitcoin bitcoin-wallet btc cryptoanalysis cryptography privatekey secp256k1 vulnerability

Last synced: 09 Feb 2026

https://github.com/crissnamon/soldeea

Encryption algorithm based on system of linear diophantine equations resistant to quantum algorithms

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Last synced: 02 May 2026

https://github.com/hassan-shahbazi/vismasign

Swift library for Linux and macOS

cryptography linux macos security swift swift-4 swift-package-manager swift5

Last synced: 16 Mar 2026

https://github.com/karusb/bazcryptlib

BazCrypt 4 Neighborhood Cellular Automata Encryption Algorithm C++ Library

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Last synced: 02 May 2026

https://github.com/vechain/thor-devkit.java

Java (8+) library to assist a smoother development process on VeChainThor for all developers and hobbyists. Includes wallets creation, transaction assembling, signature, ABI encoding, and bloom filter.

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Last synced: 27 Nov 2025

https://github.com/blackbossx/bosscrypto

my cryptography method

crypto cryptography cryptography-algorithms cryptography-project cryptography-tools

Last synced: 15 Feb 2026

https://github.com/reklatsmasters/is-chacha20-poly1305-supported

Check whether a chacha20-poly1305 cipher is supported by NodeJS

aead chacha20 chacha20-poly1305 cipher crypto cryptography nodejs poly1305 rfc7539

Last synced: 03 May 2026

https://github.com/sip-protocol/sip-protocol

Shielded Intents Protocol - The Privacy Standard for Web3

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Last synced: 16 Jun 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/daisvke/ft_otp

This program allows you to securely store an initial password in an encrypted file and generate a new TOTP (Time-based One-Time Password) every time it is requested. It provides both a CLI and a GUI version.

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Last synced: 28 Feb 2025

https://github.com/samuel-lucas6/covertpadding

An implementation of the Covert Encryption randomised padding scheme.

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Last synced: 27 Mar 2025

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/akhilkailas017/file-xor-encryptor

This repository is used to encrypt and decrypt files in computer using XOR. Based on Python

auto-py-to-exe cryptography encryption pyinstaller python xor

Last synced: 04 Jun 2026

https://github.com/jambolo/bitcoin-keys-demo-cs

Various demonstrations of the derivations and features of Bitcoin keys.

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Last synced: 19 Apr 2026

https://github.com/yashsahsani/kame-hameha

This project explains how to use symmetric and asymmetric cryptographic methods simultaneously.

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Last synced: 15 Jun 2026

https://github.com/mrdcvlsc/keyper-offline-password-manager

An android application where you can record the following account information: username, platform, passwords to an offline database.

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Last synced: 07 May 2026

https://github.com/abhishekkr/aqikcipher

encrypt-decrypt using a small shared password in a dumb One-Time-Pad style

c clanguage cryptography cryptography-tools

Last synced: 05 Jun 2026

https://github.com/nemanjapetrovic/cryptography-course-elfak

Cryptography course @ Faculty of Electronic Engineering, University of Niš, Serbia

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Last synced: 16 Apr 2026

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

Application API server for the Virgil Nexmo Demo Messaging app.

api chat cryptography demo encryption messenger nexmo server

Last synced: 23 Jun 2026

https://github.com/eduardoviega/segurancaweb

Back-End com NodeJS

cryptography handlebars javascript nodejs

Last synced: 08 May 2026

https://github.com/tychosoft/moderncli

C++17 header only library for common uses.

cpp cross-platform cryptography header-only lock-free logging-library multithreading serial socket-programming ssl string-manipulation sync

Last synced: 06 Jul 2025

https://github.com/chihsiao/eva4j

JNI Wrapper for EVA: JVM & Android Support with Kotlin DSL

cryptography homomorphic-encryption

Last synced: 24 Mar 2025

https://github.com/danieldidiobalsamo/sha256sum_from_scratch

SHA-256 from-scratch implementation in Rust

cryptography hashing rust sha256

Last synced: 21 Apr 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/ishan-surana/federanet

Federated Multimodal Cyberattack classification model on social media messages (utilizing blockchain and quantum key cryptography). Blockchain server at https://cyberattack-blockchain.onrender.com/. Model interaction link below.

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Last synced: 10 May 2026

https://github.com/doublegate/cado-nfs-modern

CADO-NFS (modern): an enhanced modernization + performance fork of CADO-NFS (Number Field Sieve — integer factorization & discrete log) on current toolchains. Adds GPU linear algebra + full vector residency, a GPU ECM pre-factoring front-end, SDE-validated AVX-512 VPCLMULQDQ/IFMA kernels, and Rust orchestration. LGPL-2.1.

cado-nfs cpp cryptography discrete-logarithm factorization hpc integer-factorization modernization-fork nfs number-field-sieve number-theory python

Last synced: 16 Jun 2026

https://github.com/sh1kxrv/xaf-vault

Cross-platform `VAULT`

cli cryptography monorepo pet-project turborepo typescript ui

Last synced: 10 May 2026

https://github.com/ryleeharrison/iv-crypto

More of an example, not recommended for production use

cryptography cypher

Last synced: 26 Mar 2025

https://github.com/bok1c4/PGPKeyTypeDetector

This includes RSA and ECC cryptographic algorithms

cryptography go pgp

Last synced: 25 Mar 2025

https://github.com/eltneg/kryptograzig

Simple public key cryptography algorithms implemented in zig

cryptography encryption-decryption zig

Last synced: 05 Jun 2026

https://github.com/texadactyl/cloaking.c

C-language password-based security of a single file or a single file system archive file.

c cloaking-utility cryptography encryption-decryption libgcrypt password-based

Last synced: 04 Apr 2025

https://github.com/wangray/matasano-crypto

Matasano Crypto Challenges in python

cryptography

Last synced: 03 Jul 2025

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/ao3575911/dark-swan

Decentralized identity and symbolic anonymization protocol — Ed25519 signing, rotating pseudonyms, and local registry for private verifiable identities.

anonymization cryptography decentralized ed25519 identity privacy pseudonym python

Last synced: 22 Jun 2026

https://github.com/projects-developer/fake-news-detection-using-machine-learning-project

Live Fake news detection refers to the process of identifying and flagging false or misleading informion presented as news. Live Fake news detection using machine learning. Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

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Last synced: 17 Feb 2026

https://github.com/thefish/gogost

Cypherpunks.ru gogost mirror

cryptography encryption-algorithms gost russian

Last synced: 14 Jan 2026

https://github.com/exploide/ulpcrypt

Implementation of the U-LP Cryptosystem

cryptography cryptography-library

Last synced: 06 Sep 2025

https://github.com/ajnouri/network-automation

Development container for network automation.

ansible cryptography napalm net-tools netmiko openssh-client paramiko pexpect pycharm-ide pyntc python python-pip python3-setuptools python36 telnet

Last synced: 19 Jan 2026

https://github.com/artdelpi/seguranca-computacional-vigenere

Este projeto implementa a cifra de Vigenère e ataque por análise de frequência.

cibersecurity cryptography flask vigenere vigenere-cipher

Last synced: 02 Jun 2026

https://github.com/aleksandrhovhannisyan/serverless-cryptography-algorithms

Implementations of elementary cryptography algorithms using forms and 11ty Serverless.

11ty 11ty-serverless ciphers cryptography javascript netlify

Last synced: 25 Apr 2026

https://github.com/symphonyprotocol/p2p

Decentralized P2P networking framework

cryptography golang network p2p

Last synced: 14 Jan 2026

https://github.com/ahmed-naserelden/cryptographic-algorithms

The "Cryptographic Algorithms Implementation in C#" project is a comprehensive repository that provides implementations of various cryptographic algorithms, designed to enhance data security. Each algorithm is meticulously crafted in C# and thoroughly documented within the codebase, enabling easy understanding and usage.

cryptoanalysis cryptoanalysis-algorithms cryptography network-security security

Last synced: 07 Oct 2025

https://github.com/onlyf0ur/pq-msg

Pure Rust abstractions for higher-level implementations of post-quantum cryptography in secure messaging protocols.

cryptography encryption key-exchange messaging nist-pqc post-quantum-cryptography

Last synced: 23 Feb 2026

https://github.com/benwoo1110/cryptographyapp

Advanced converter for modern cryptography algorithms

cryptography csharp

Last synced: 31 Mar 2026

https://github.com/henriquesebastiao/blindage

A simple yet capable CLI password manager

2fa argon2 cryptography hashlib mfa password-manager python sqlalchemy totp typer

Last synced: 30 May 2026

https://github.com/magical/keccak

The Keccak hash function (SHA-3)

cryptography

Last synced: 10 Jan 2026

https://github.com/sean9999/go-oracle

A package that provides basic high-level cryptographic functions using Curve25519

awesome cli cryptography go

Last synced: 14 Jan 2026

https://github.com/arunanshub/webbin

WebBin: The Based Pastebin

compression cryptography flask pastebin security sqlalchemy

Last synced: 11 Feb 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/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/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.

codeql cryptography cryptography-algorithms csharp dotnet dotnet-core gitactions-workflow githubpackages nuget-package reportgenerator salt sha256-crypt singleton-pattern sonarcloud xunit xunit-tests

Last synced: 21 Jan 2026

https://github.com/sedarius-1/kryptografia

University Project to create encrypting/decrypting app in Java with JavaFx GUI

cryptography encryption java university-assignment

Last synced: 25 Apr 2025

https://github.com/mdamt/erpiko

Mirror of H. Erpiko

c-plus-plus certificate cryptography digital-signature pkcs pki smime

Last synced: 04 Apr 2025

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/drimiteros/secret_scribble_v1.0-open

An offline password manager with a graphical user interface

authentication cryptography encryption open-source password-manager privacy security security-tools

Last synced: 11 Feb 2026

https://github.com/floatpane/go-openpgp-card-hl

High-level YubiKey OpenPGP signer/decryptor

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Last synced: 22 Jun 2026

https://github.com/catherinee24/my-own-cryptocurrency

My own cryptocurrency with python.

blockchain-technology cryptocurrency cryptography python sha256-hash

Last synced: 28 Apr 2026

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/noahie-valk/basic-password-manager

Project for Project Shark to understand and apply cryptography concepts

cryptography python

Last synced: 05 Apr 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/fardinkamal62/pixenc

Encrypt image by manipulating pixels

cryptography encryption go golang image manipulation pixels python security

Last synced: 21 Apr 2026

https://github.com/20101301-alina-hasan/multiple-cryptographic-functionalities

This Python application integrates various cryptographic functionalities into a single interactive program. Users can perform operations such as encryption, decryption, hashing, digital signature generation/verification, and Message Authentication Code (MAC) generation.

cryptography digital-signature-algorithm encryption-decryption hashing jupyter-notebook message-authentication-code python