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/ideal-lab5/etf.js

Encryption to the Future Javascript SDK

cryptography encryption etf timelock-encryption

Last synced: 17 Mar 2026

https://github.com/systemslibrarian/postquantum.fileformat

Draft specification for a hybrid post-quantum file encryption format. X25519+ML-KEM-1024 + Ed25519+ML-DSA-87. EXPERIMENTAL — seeking review.

cryptography dotnet draft-spec file-format hybrid-encryption post-quantum specification

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-compare

Interactive cryptographic algorithm reference — 17 categories, 97 algorithms, 16+ countries. Comparison tool with beginner/advanced modes, PQ-safe filtering, and justification report export.

aes cryptographic-algorithms cryptography digital-signatures education homomorphic-encryption nist post-quantum pqc reference typescript vite zero-knowledge

Last synced: 01 Jun 2026

https://github.com/kolosovpetro/rsaencryptionexplained

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

assymetric-encryption assymetric-key-cryptography cryptography rsa-cryptography rsa-encryption rsa-key-encryption

Last synced: 09 Feb 2026

https://github.com/contisimone99/simple-hw-asimmetric-encryption

Simple Asymmetric Encryption (SAE) system implemented in SystemVerilog and Python. Demonstrates basic key generation, encryption, and decryption operations using modular arithmetic with communication between two parties through public key exchange.

cryptography cybersecurity encryption hardware-design systemverilog verilog

Last synced: 10 Feb 2026

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

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

bearssl block-cipher cryptography decryption ecdh ecdhe encryption hkdf hmac https-client sha-1 udk ue3 unreal-engine-3 unrealscript xxtea

Last synced: 19 Mar 2026

https://github.com/labex-labs/comptia-security-plus-training-labs

Master cybersecurity fundamentals through hands-on labs, covering threat analysis, risk management, network security, identity management, cryptography, and incident response. Perfect for CompTIA Security+ certification prep.

certification certification-prep comptia course cryptography cybersecurity hands-on hands-on-labs identity-management incident-response labex labs network-security penetration-testing programming risk-management security security-fundamentals sysadmin threat-analysis

Last synced: 11 Feb 2026

https://github.com/containerscrew/rsecure

Secure file encryption using pure Rust and AES 🔒

aes-gcm aur-package cli crates-io crypto-library cryptography data-protection file-encryption privacy rust security

Last synced: 11 Feb 2026

https://github.com/devprojectekla/cryptoman-gui

This is a simple kivy application to encrypt and decrypt files or a whole directory tree.

cryptography kivy-application kivy-framework python

Last synced: 27 Feb 2026

https://github.com/astropilot/bigeye

A web security challenges website, a school project for my software security course

challenge cryptography ctf-platform security web

Last synced: 19 Mar 2026

https://github.com/notstatilko/uiscrypt

Make strength passwords with uiScrypt!

cryptography password-generator password-manager scrypt scrypt-algorithm urlsafe-base64

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/embetrix/pycrypto-helper

python crypto operations helper

cryptography encryption-decryption pkcs11 python3 signature

Last synced: 01 Mar 2026

https://github.com/azuchi/frostrb

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

bitcoin cryptography elliptic-curve frost schnorr schnorr-signatures taproot threshold-signature

Last synced: 02 Mar 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/0800tim/tournamental

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

betting cryptography prediction prediction-model sports sports-analytics sports-betting sweepstakes

Last synced: 03 Jun 2026

https://github.com/mamolinux/simple-pwgen

Very simple Python3-based GUI application to generate secure and random password.

cryptography debian linux-mint password-generator python3 ubuntu

Last synced: 03 Apr 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/jparr721/monkey

🐒 Non GMO password manager, safe for consumption

cryptography cryptography-tools nodejs password password-vault tool

Last synced: 20 Apr 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/danielabrozzoni/glhash

OpenGl-based hash function 🔐

cryptography hash opengl

Last synced: 06 Jun 2026

https://github.com/ellipticsecure/signer-example

This example demonstrates how to use a MIRkey or eHSM Hardware Security Module to sign a PDF file.

cryptography hsm java javafx pdf signing

Last synced: 27 Apr 2026

https://github.com/antelle/pkcs15-smartcard-sign

Signatures from PKCS #15 smartcard in node.js

cryptography nodejs pkcs15 signature smartcard

Last synced: 28 Apr 2026

https://github.com/richarddushime/authenticred

AuthentiCred – A Simple and Secure Way to Verify Academic Credentials and Recomendations

blockchain-technology cryptography django-framework ecdsa htmlx jwt-token mkdocs mkdocs-material python3 smart-contracts solidity w3c

Last synced: 28 Apr 2026

https://github.com/ellipticsecure/ehsm-java

Java integration library for the eHSM and MIRkey Hardware Security Modules

bip32 bitcoin cryptography ehsm hsm java pkcs11

Last synced: 28 Apr 2026

https://github.com/foxtbirdy/mini_apps

The Official Mini-apps where apps are created?

cryptography css gui gui-application mini-apps pyqt5 pyqt5-desktop-application python

Last synced: 28 Apr 2026

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

Authenticate multiple inputs easily using keyed BLAKE2b.

blake2 blake2b blake2b-256 blake2b-384 blake2b-512 crypto cryptography keyed-blake2b mac message-authentication-code multi-input multi-input-mac multi-inputs multi-mac

Last synced: 29 Apr 2026

https://github.com/stripedpajamas/cryptopals

node implementation of cryptopals challenges

cryptography cryptopals cryptopals-challenges cryptopals-crypto-challenges nodejs

Last synced: 02 May 2026

https://github.com/jacob-ian/deno_random_bigint

Generate a random BigInt by bit-length with Deno.

cryptography deno typescript

Last synced: 02 May 2026

https://github.com/karusb/bazcryptlib

BazCrypt 4 Neighborhood Cellular Automata Encryption Algorithm C++ Library

algorithm bazcrypt bazcrypt-encryption c-plus-plus cellular-automata cpp cross-platform cryptography encryption library linux windows

Last synced: 02 May 2026

https://github.com/elliotwutingfeng/balloon_hashing

Balloon Hashing implemented in Dart.

crypto cryptography dart dartlang hash password

Last synced: 09 Jun 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/diogoperei29/x.509-cert-verifier

A small project for loading and verifying X.509 certificate chains against a local trust store using the OpenSSL library.

c certificate certificates cmake cpp cpp17 cryptography icmp openssl python python3 raii scripting testing verification x509

Last synced: 07 May 2026

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

Balloon Hashing implemented in Ruby.

crypto cryptography hash kdf-algorithm key-derivation-function password ruby ruby-language

Last synced: 10 Jun 2026

https://github.com/ash-2k3/ooni-chainwatch

A python script to extract certificate chains from OONI web connectivity measurements and submit them to a Let's Encrypt Certificate Transparency (CT) log. This aids in monitoring and auditing the certificates used on the web, contributing to internet transparency efforts.

certificate-transparency cryptography python s3-buckets x509certificates

Last synced: 10 Jun 2026

https://github.com/defeo/isogenyviz.jl

Visualizations of isogeny graphs

cryptography elliptic-curves isogenies mathematics number-theory

Last synced: 29 Jan 2026

https://github.com/akshatamohanty/practical-blockchain

Website for practicalblockchain.org. Practical Blockchain is a meetup group in Singapore, started in 2021. We focus on talks and workshops by speakers building blockchain applications in production, learning from their research and insights.

blockchain cryptography dapps ethereum security smartcontracts solidity zkproof

Last synced: 09 May 2026

https://github.com/pccr10001/cryptoauthlib

Microchip CryptoAuthentication Library

arduino arduino-library atca atecc508a cryptoauthlib cryptography esp32

Last synced: 10 May 2026

https://github.com/lucianoscarpaci/atmega328p

🔒 Embedded Crypto Projects with Arduino board.

aes arduino arduino-projects atmega328p cryptography haskell nix

Last synced: 10 May 2026

https://github.com/abdulsmapara/constant-size-group-signatures

Implementation of the research paper - http://crypto.stanford.edu/~xb/pkc07/fullgrpsigs.pdf

constant-size-group-signatures cryptography number-theory

Last synced: 11 Jun 2026

https://github.com/netesf13d/crypto-stuff

Python implementation of some common cryptographic primitives

aes cryptography keccak

Last synced: 14 May 2026

https://github.com/tbarrella/crypto-pure

Pure-Rust cryptography library

cryptography rust

Last synced: 11 Jun 2026

https://github.com/rahmatagungj/toke-dev

This for Development TOKE SYSTEM

cryptography encryption

Last synced: 15 Jun 2026

https://github.com/netesf13d/py-ecc

Python implementation of elliptic curve cryptography

cryptanalysis cryptography elliptic-curve-cryptography

Last synced: 17 Jun 2026

https://github.com/virgilsecurity/demo-e2ee-server-java

A simple Java server application that uses in end-to-end encryption (E2EE) use-case.

crypto cryptography demo encryption end-to-end-encryption secured-by-virgil server

Last synced: 17 Jun 2026

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/majikah/majik-key

Majik Key is a next-generation seed phrase account library for creating and managing mnemonic-based identities. It provides a post-quantum ready, high-security bridge between BIP39 mnemonics and the Majikah ecosystem.

bip39 crypto cryptography key keypairs majik-message mnemonic security seed-phrase

Last synced: 22 Jun 2026

https://github.com/hambosto/sweetbyte

A very small, very simple, yet very secure encryption tool.

aes-256 argon2id cryptography decryption encryption golang privacy-tools reed-solomon security security-tools xchacha20-poly1305

Last synced: 07 Oct 2025

https://github.com/willdunklin/elgamal

Implementation of elliptic curve elgamal cryptography in Python (coursework)

cryptography

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/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/ya2ir/sha1

SHA-1 in Golang

cryptography hashing-algorithm hashing-algorithms sha-1 sha-1-hash

Last synced: 08 Oct 2025

https://github.com/keyweeusr/elchacha

ChaCha20 implementation as per RFC7539

chacha20 cryptography cryptography-algorithms elisp emacs rfc7539

Last synced: 08 Oct 2025

https://github.com/ben854719/autonomous-health-monitoring-emergency-response

This app uses Bluetooth to link a worker’s smartphone with a supervisor’s laptop for live health monitoring. PySyft handles secure biometric authentication, while machine learning detects injuries and visualizes them on a dashboard. Agentic AI responds to critical events by triggering emergency protocols and contacting 911 with location data.

agentic-ai bluetooth cryptography cybersecurity error-handling gemini langgraph machine-learning-algorithms matplotlib mcpserver nltk numpy pysyft python pytorch socket tcp tenseal

Last synced: 28 Apr 2026

https://github.com/kzorin52/nistp256

Rust dylib wrapper to RustCrypto/elliptic-curves [only keypair]

crypto cryptography elliptic-curves keypairs nistp256 perfomance secp256r1

Last synced: 08 Oct 2025

https://github.com/pillardevelopment/go_chain

blockchain-network cpp cryptography golang google secp256k1 tendermint-consensus

Last synced: 14 Jan 2026

https://github.com/nunees/trabalho_rsa_unip

Implementação do algoritmo RSA básico.

cryptography python rsa-cryptography

Last synced: 20 Mar 2025

https://github.com/carloslfu/ts-crypto

Crypto utilities for TypeScript proyects

cryptography typescript

Last synced: 02 May 2026

https://github.com/gabrielmajeri/pp-project

Procedural programming project for winter 2018 course

c cryptography pattern-matching

Last synced: 08 Apr 2025

https://github.com/shaina-gh/dss

Java implementation of the Digital Signature Standard (DSS) for message integrity and authenticity verification.

cryptography cryptography-algorithms digital-signature-algorithm digital-signature-authentication dss java signature-verification

Last synced: 22 Apr 2025

https://github.com/x-financial-technologies/.github

blockchain cryptocurrency cryptography ethereum finance fintech onchain smart-contracts stablecoins tokenization tokenized-funds x-financial-technologies xft

Last synced: 16 Mar 2025

https://github.com/fboulnois/ring-pkae-example

An example of public key authenticated encryption in Rust

aead crypto cryptography ecdh elliptic-curve-cryptography public-key-cryptography public-key-encryption rust

Last synced: 01 Jul 2025

https://github.com/toniomacaronio/keccak-rust

Keccak implementation in Rust

crypto cryptography keccak rust sha3

Last synced: 24 Mar 2025

https://github.com/shubhamv108/crypto-utils

A simple crypto util in Java.

aes crypto-utils cryptography cryptography-utilities hashing hotp otp rsa totp

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/midnight-wonderer/embedded-xoodyak

Lightweight, zero-allocation Xoodyak cryptographic scheme in C for microcontrollers.

c-library cortex-m cryptography embedded esp8266 microcontroller xoodoo xoodyak

Last synced: 28 May 2026

https://github.com/frankiefab100/caesar-cipher-cryptography

Caesar cipher - Task by Web3Bridge

caesar-cipher cipher cryptography decode decryption encode encryption

Last synced: 21 Jul 2025

https://github.com/lihongjie0209/sm-py-bc

SM2/SM3/SM4 implementation in Python based on Bouncy Castle - Pure Python cryptography library

bouncy-castle chinese-crypto cryptography gm-crypto pure-python python sm2 sm3 sm4 zero-dependencies

Last synced: 13 Jan 2026

https://github.com/pedroalbanese/leacrypt

TTAK.KO-12.0223 Lightweight Encryption Algorithm (ISO/IEC 29192-2:2019) with Galois/Counter Mode (LEA-GCM)

aead cryptography golang lea symmetric-encryption

Last synced: 16 Jun 2026

https://github.com/lasse-tom-lang/python-cryptographie

Program for en- and decrypt messages

cryptography pysimplegui python steganography

Last synced: 31 Mar 2025

https://github.com/fordcois/cryptography

This repository is a documentation of my exploration of cryptography, focusing on creating and cracking ciphers

cryptography

Last synced: 02 Jul 2025

https://github.com/farchanjo/merkle

Local-first MCP vault for Claude Code — LLMs hold opaque handles, operators approve every reveal, every access leaves a BLAKE3 hash. Rust 2024 / DDD + Hexagonal.

argon2id audit-log blake3 claude-code cryptography ddd ed25519 hexagonal-architecture local-first mcp model-context-protocol rust rust-2024 secrets secrets-management security spec-driven-development sqlite vault xchacha20-poly1305

Last synced: 17 Jun 2026

https://github.com/dan149/noice

OTP (one-time pad) encryption CLI tool.

blazingly-fast cipher cli cryptography encryption encryption-decryption one-time-pad open-source otp zig ziglang

Last synced: 24 Mar 2025

https://github.com/kenatsf/solidity-signature

cryptography ethereum nextjs security smart-contracts solidity

Last synced: 03 May 2026

https://github.com/orlowskilp/des-example

DES implementation in Rust

cryptography rust rust-lang symmetric-cryptography

Last synced: 06 Jul 2025

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/krdevanshu06/steganography-app

This project is a steganography tool that allows users to hide and extract secret messages within images using Least Significant Bit (LSB) encoding. The tool provides a user-friendly Streamlit UI for seamless encoding and decoding of messages.

cryptography data-security image-processing lsb-encoding python steganography streamlit

Last synced: 18 Apr 2026

https://github.com/sahedulislamrony/anonymous

A secure and user-friendly platform for sending anonymous messages with real-time database integration, powered by Firebase and built using ReactJS, Sass, and Vite.

cryptography css3 firebase firebase-auth firebase-realtime-database javascript netlify react-router-dom reactjs sass vite

Last synced: 14 Apr 2026

https://github.com/juanpinheirofiap/faceid

Aplicativo de reconhecimento facial com Oracle Database, DeepFace e OpenCV para autenticação via FaceID.

cryptography embeddings opencv oracle-database pyhton

Last synced: 12 Oct 2025

https://github.com/ahf/orbis_uuid

UUID Generator that uses Orbis.

consistent-hashing consistent-hashing-library cryptography erlang uuid-generator

Last synced: 27 Aug 2025

https://github.com/kwas123/blockchain-file-verification

🔒 Verify file integrity and authenticity with this decentralized system on Ethereum, ensuring secure, tamper-proof document validation through blockchain technology.

axios bitcoin blockchain blockchain-technology copyleft cryptography dapp fir modular move openpgp p2p pinata-ipfs python react sha256 timestamp trusted-timestamping

Last synced: 04 May 2026

https://github.com/irfan-manitechnest/sodium-crypto

Modern PHP 8.3+ encryption library using libsodium – secure symmetric & asymmetric (Fidelius-style) encryption, signing, and password hashing.

cryptography fidelius libsodium php

Last synced: 13 Jan 2026

https://github.com/newyaroslav/siphash-cpp

SipHash Headers Only C ++ Library

c-plus-plus cpp11 cpp17 cryptographic-hash-functions cryptography hash library pseudorandom-functions siphash

Last synced: 12 Oct 2025

https://github.com/argenox/noxtls-rs

NoxTLS Rust is a lightweight, high-performance embedded TLS library written in Rust and designed for secure communication in resource-constrained systems. Built for efficiency, portability, and modern security standards.

cipher-algorithms cipher-suit cryptography cryptography-api dtls openssl-alternative rust rust-library tls tls12 tls13