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: 2026-07-02 00:06:57 UTC
- JSON Representation
https://github.com/survi218/https-secure-server
Redirect traffic from the insecure HTTP server to a secure HTTPS server
cryptography https https-server openssl private-key redirecting-requests secure secure-communication tls-certificate
Last synced: 31 Jul 2025
https://github.com/4lessandrodev/cesar-cipher
A simple TypeScript library for Caesar cipher encryption and decryption
cesar-cipher cryptography shift-cipher
Last synced: 30 Jan 2026
https://github.com/luckyone-cc/merkletree
Merkle Tree Algorithm
crypto cryptocurrency cryptography merkle-proof merkle-root merkle-tree merkletree
Last synced: 17 Mar 2025
https://github.com/fynydd/fynydd.enigma
An Enigma Machine emulator that enciphers text strings and which can be used for modern quantum-resistant encryption in mobile, desktop, and server apps (Windows, macOS, Linux, .NET 9.0, x64, Arm64, Apple Silicon).
cipher crypto cryptography dotnet encryption enigma enigma-machine keyless keyless-cipher machine ww2
Last synced: 21 Apr 2026
https://github.com/michaelgiuliano/s3-crypt-vault
A secure client-side encrypted storage system for AWS S3.
aws cli cloud-security cryptography cybersecurity devops encryption python s3
Last synced: 06 Apr 2026
https://github.com/helixprojectai-code/helix-tel-deploy
Zero-exchange cryptographic key derivation from constitutional AI behavior. Two nodes independently derive an identical encryption key through deterministic convergence — no key transmitted, negotiated, or pre-shared.
ai-safety constituional constitutional-ai convergence cryptography encryption grammar helix-ttd key-derivation llm mesh-network python zero-knowledge
Last synced: 23 May 2026
https://github.com/m-azra3l/wavaudiostego
WAVAudioStego is a desktop application designed for audio steganography, which is the art of hiding secret information within an audio file. With this application, users can hide text messages in form of text files within audio audio files and extract them later using a private key.
Last synced: 25 Aug 2025
https://github.com/natsalete/algoritmo-des-data-encryption-standard-em-go
This project implements the DES (Data Encryption Standard) algorithm from scratch in Go, without using pre-built cryptography libraries. DES is a symmetric encryption algorithm that uses a block cipher, operating on 64-bit blocks with a 56-bit effective key (64-bit with parity).
56-bit-key 64-bit-blocks block-cipher cipher-blocks cryptography data-encryption-standard decryption des encryption feistel-network go golang key-generation pkcs7-padding s-boxes symmetric-encryption
Last synced: 24 Sep 2025
https://github.com/ymcx/skibidifier
Encrypts your strings to form a funny-looking wall of text consisting of the words 'skibidi' and 'toilet'. Based on TEA (Tiny Encryption Algorithm)
cli command-line command-line-tool crypto cryptography encryption rust
Last synced: 14 Oct 2025
https://github.com/saikrishnareddy1919/blockchain-resources
Resources to learn Blockchain | web3 stuff. Will continue adding more resources to this. Star and watch this repo.
blockchain blockchain-technology crypto cryptocurrency cryptography decentralized decentralized-applications ethereum ethereum-blockchain nft nfts resources smart-contracts solidity web3 whitepaper whitepapers
Last synced: 15 May 2026
https://github.com/nim579/cry
cipher crypto cryptography encryption sign verify
Last synced: 27 Mar 2025
https://github.com/onlyf0ur/openssl-mojo
Indirect OpenSSL bindings for Mojo
bindings c cryptography mojo openssl
Last synced: 17 Mar 2025
https://github.com/nexys-system/crypto
Simple crypto helpers for Node
cryptography node package typescript
Last synced: 18 May 2026
https://github.com/noomorph/p2p
Browser-based end-to-end encrypted message exchange using PGP, with no server storage
browser-based cryptography encryption end-to-end-encryption messaging openpgp pgp privacy security
Last synced: 25 Sep 2025
https://github.com/sammyne/crypto-rs
A Go-like crypto library in Rust
cryptography digital-signature encryption hash rust
Last synced: 18 Mar 2025
https://github.com/jsf0/aspis
command line encryption filter using NaCL
argon2 command-line cryptography encryption filter libsodium pipe ruby
Last synced: 17 Mar 2025
https://github.com/jieunhan17/cryptographicsecurityprotocol
A team project from the Corporate Computer Security class in 2019
Last synced: 21 Apr 2026
https://github.com/shyamsunder149/ctf-notes
CTF Notes made for my references for Solving CTFs
cryptography forensics notes python steganography
Last synced: 13 Jun 2026
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/keogami/crypt
A simple utility to encrypt & decrypt files with AES-256 with passphrases
cli cryptography encryption-decryption go privacy tool
Last synced: 17 Jan 2026
https://gitlab.com/tychosoft/moderncli
C++17 header only library for common cross-platform networking, sockets, ssl, threading, new language features, crypto, and serial i/o support.
C++ cpp17 cross-platform cryptography header-only lock-free multithreading serial sockets ssl
Last synced: 09 Apr 2026
https://github.com/hostileninja72/encryption-tool
A tool used to encrypt using different algorithms.
aes chacha20 command-line-tool cryptography python rsa
Last synced: 02 Mar 2025
https://github.com/pjiwm/goodcoin
Simple blockchain implementation of a cryptocurrency written Python. CLI with miner and wallet functionality.
blockchain blockchain-technology cryptocurrency cryptography python
Last synced: 13 Jun 2026
https://github.com/isaaczhang4/rsa-cryptography
Python implementation of the RSA Cryptography Algorithm
cryptography number-theory python rsa-cryptography
Last synced: 02 Aug 2025
https://github.com/filiprokita/hashtool
A simple command-line tool for calculating the MD5, SHA-1, and SHA-256 hash values of a text or a file, written in Python.
algor command-line-tool cryptography encrypt encryption encryption-algorithms file-hashing hack hashing hashlib md5 python python3 securirty sha sha1 sha256 text-hashing
Last synced: 02 Aug 2025
https://github.com/rakibhossain72/XORpass
XORpass is a Flask-based password manager application with MongoDB integration. It allows users to securely store their passwords in a MongoDB database, with encryption applied using their own master password. This ensures that the stored passwords are protected and can only be accessed by the owner.
cryptography encrypted-store flask password-manager
Last synced: 27 Sep 2025
https://github.com/simonbrandner/crypto-intro-slides
Slides for a presentation I gave to some of my friends to introduce them to cryptography
Last synced: 16 Feb 2026
https://github.com/ne0n0us/pre-chat
Proxy re-encryption tool mimicing a messenger.
cryptography html javascript messenger proxy-re-encryption quasar quasar-framework scss vite vue vue3 vuejs wasm
Last synced: 09 Apr 2026
https://github.com/jimouris/ring-signatures
A Rust implementation of ring signatures using Ristretto.
crypto cryptocurrency cryptography monero ring ring-signature ring-signature-scheme ring-signatures
Last synced: 15 May 2026
https://github.com/servierhub/certwatch
Watch the certificates expiration dates for a list of hostname:hostport
certificate certificates cryptography domain expiration expiry security security-automation security-scanner security-tools tls tls-certificate x509 x509-parser x509certificates
Last synced: 28 Sep 2025
https://github.com/carlosmakin/enigma-cli
A simple command-line interface for encrypting and decrypting data.
Last synced: 24 Aug 2025
https://github.com/anishvedant/chat-box-application
This repository contains a secure chat application implemented using Python. The application uses RSA encryption for secure message exchange between clients and a server.
algorithm chat-application cryptography encrypted-messages encryption-decryption multi-client-support python python-gui-tkinter python-socket-server real-time real-time-messaging rsa-cryptography rsa-encryption secure-chat secure-communication socket socket-programming tkinter tkinter-gui
Last synced: 01 Sep 2025
https://github.com/salatad/salatanote
A private untraceable alpha Cryptocurrency that's built on the CryptoNote Cryptocurrency codebase and implemented the CryptoNote protocol.
bytecoin crypto cryptocurrency cryptography cryptonote miner mining monero privacy private wallet
Last synced: 29 Sep 2025
https://github.com/zenium-community/zenium
Zenium integration/staging tree
altcoin anonymous-transactions bitcoin blockchain blockchainprivacy blockchaintechnology bulletproofs c-plus-plus cryptocommunity cryptocurrency cryptography p2p privacycoin zkp zkpcrypto zkproof zksnarks
Last synced: 29 Sep 2025
https://github.com/YeDawa/Enigmify
This project is a simple implementation of the Enigma machine in Rust. It allows users to input a message, configure the rotor and reflector settings, and encrypt or decrypt the message.
cli cryptography enigma-machine rust security
Last synced: 29 Sep 2025
https://github.com/arjav0703/anonytalk
A string Encryptor/Decryptor
crypto cryptography encryption encryption-decryption fernet fernet-algorithm fernet-cryptography fernet-encryption gui-application python python-3 python3 tkinter tkinter-gui tkinter-python
Last synced: 30 Sep 2025
https://github.com/solomon-77/aes-file-crypto
This is a Python-based file encryption and decryption tool that utilizes AES for security.
aes aes-128 aes-encryption cryptography cryptography-project cryptography-tools encryption encryption-decryption python3
Last synced: 04 Sep 2025
https://github.com/cadeke/lets-go
lets-go is a simple CLI application written in Go for encrypting and decrypting files.
cli cryptography decryption encryption golang
Last synced: 05 Jun 2026
https://github.com/mlziade/keycrypt
A fun and challenging puzzle website. You can create puzzles for friends and other players to solve! Only then can they decrypt your message...
cryptography django game puzzle puzzle-game
Last synced: 15 May 2026
https://github.com/iotexproject/rs-proximity-gaps
Lean 4 formalization, Python verification, and manuscripts for two ePrint papers on FRI proximity gaps above the Johnson radius (Chai & Fan, IoTeX, 2026) — ePrint 2026/861 + 2026/858.
action-orbit correlated-agreement cryptography ethereum formal-verification fri interactive-oracle-proof johnson-bound lean4 mathlib proximity-gap reed-solomon stark succinct-proofs zero-knowledge-proofs zk-stark
Last synced: 01 Jul 2026
https://github.com/mikebrown0409/project-fuse
Zero-knowledge proof system for verifiable compliance envelopes. Proves compliance checkers executed correctly without revealing sensitive data. Built with RISC Zero zkVM. Phase 1 complete.
audit compliance cryptography gdpr privacy-preserving regulatory-compliance risc-zero rust soc2 zero-knowledge-proofs zkp zkvm
Last synced: 11 Jan 2026
https://github.com/zahidayturan/advanced-encryption-standard-application
This app securely encrypts and decrypts your files by generating keys using the AES algorithm.
aes cryptography encryption firebase firestore flutter symetric-encryption
Last synced: 09 Apr 2026
https://github.com/psychlone77/election-system-core
A secure, privacy-preserving electronic voting system built with TypeScript and NestJS, implementing blind signatures, threshold cryptography, and end-to-end ballot encryption.
blind-signatures cryptography e-voting-system nestjs postgresql threshold-cryptography
Last synced: 01 Jul 2026
https://github.com/PeaceFounder/TallyProofs.jl
Cryptographic core for E2E verifiable voting system with everlasting privacy and coercion resistance via post-cast isolation
Last synced: 06 Apr 2026
https://github.com/igorfonseca05/curso-ciberseguranca
Repositório dedicado aos estudos de cibersegurança, com práticas e conceitos essenciais. 🔐🛡️ Inclui scripts, anotações e experimentos sobre proteção de sistemas e redes. 💻⚡
cibersecurity cryptography hash igorfonseca05 security webdevelopment
Last synced: 17 Mar 2025
https://github.com/sundarnagarajan/pymultikdf
Python wrappers for bcrypt, PBKDF2 (fastpbkdf2) scrypt (Tarsnap)
bcrypt cryptography fastpbkdf2 pbkdf2 python-wrapper scrypt wrapper
Last synced: 23 Aug 2025
https://github.com/rkstudio585/en-de-cryptor
The Encryptor/Decryptor Tool is a Python application for securely encrypting and decrypting messages using a user-friendly interface, featuring key generation, message encryption, and decryption, all powered by the rich library and cryptography for security.
cryptography decryption encrypted-message encrypted-message-and-text encrypted-text encryption encryption-decryption pyfiglet rich terminal-app user-interface
Last synced: 29 Dec 2025
https://github.com/alessandroconti11/constant_time-parallel_shuffling
Shuffling arrays in constant time is a common problem in modern cryptography. This project involves analyzing the technique proposed in https://cr.yp.to/2024/insertionseries-20240515.py, and implementing it in C, possibly employing parallelization.
c complexity-study computer-engineering computer-science-and-engineering constant-weight-word cryptography cryptography-and-architecture-for-computer-securit cww daniel-j-bernstein djb insertion-in-array insertion-series polimi porting porting-python-to-c python-to-c
Last synced: 17 Jun 2026
https://github.com/shireee/gpu-file-encryption
library for encode/decode files on gpu using cryptographic algorithms
cpp cryptography gpu-computing
Last synced: 17 Mar 2025
https://github.com/chasebryan/-wuci-ji
无此机(Wuci-ji); x86_64 assembly research into machine code, execution boundaries, syscalls, memory, and precise low-level control.
assembly binary-analysis computer-architecture cryptography elf execution-model low-level machine-code syscalls systems-programming wuci-ji x86-64
Last synced: 01 Jul 2026
https://github.com/tn3w/stem-rs
A complete Rust library for Tor control protocol — build privacy-focused applications with type-safe, async-first APIs
anonymity async control-protocol cryptography onion-routing privacy rust security socks-proxy stem tokio tor tor-controller
Last synced: 11 Jan 2026
https://github.com/bivex/ejafa_protocol
Multi-language (Python, PHP, Go) implementation of the Ejafa communication protocol, providing secure and efficient data exchange using modern cryptographic primitives.
cryptography data-exchange go network-protocol php python security
Last synced: 23 May 2026
https://github.com/jmckesey/multithreaded-encryptor
Multithreaded File Encryptor is a high-performance C++ application that encrypts and decrypts all .txt files within a specified directory using a user-defined secret key. The project leverages multithreading to process files concurrently, significantly improving speed on multi-core systems.
cpp17 cryptography multithreading
Last synced: 04 Oct 2025
https://github.com/daleksla/present
Implementations of the PRESENT algorithm for a Rasberry Pi PICO
c11 cmake cryptography rasberry-pi-pico
Last synced: 20 Jun 2025
https://github.com/ptrvsrg/crypto
Source code for cryptographic algorithms implemented in Go.
block-cipher cryptography gost-r-34-12-2015 hash-functions magma sha-1 stream-cipher vernam-cipher
Last synced: 30 Jun 2026
https://github.com/julyanvdw/cryptographic-chat-app
An encrypted chat application built with python. Implements wireguard security protocol
cryptography customtkinter decryption encryption gui python wireguard
Last synced: 20 May 2026
https://github.com/dhruv-varshney-developer/etherlite
A fully custom-built Ethereum wallet. Features wallet creation/import, raw transaction handling, BIP-39 mnemonic generation, secure storage, and seamless network switching. Built with React, Material UI, Ethereumjs-util, and Alchemy-powered nodes, supporting multiple Ethereum and Polygon networks.
alchemy bip-39 blockchain cryptocurrency-wallet cryptography ethereum gas-estimation keypair-generation material-ui mnemonic-generation private-keys raw-transactions react secure-storage transaction-signing wallet-management web3
Last synced: 09 Apr 2026
https://github.com/rwinkhart/rcw
A cascading cryptography agent meant to be embedded within Go programs.
aes cascade cascade-encryption cascading cascading-encryption chacha20 cryptography decryption encryption encryption-decryption multiple-encryption security
Last synced: 25 Jan 2026
https://github.com/marshallovski/asnk-vas1
little cryptographic algorithm for en- and decrypting text
crypto crypto-tools cryptography decryption decryption-algorithm encrypt encryption encryption-algorithm encryption-algorithms encryption-decryption text
Last synced: 27 Mar 2025
https://github.com/eyes12/caesarjaw-cpp
CaesarJaw provides encryption and decryption functionalities using a simple shift cipher (Caesar cipher). It allows users to: ✅ Encrypt text 📝 ✅ Decrypt text 🔑 ✅ Determine the shift key 🔎 ✅ Attempt decryption without a known key 💡
caesar caesar-cipher caesar-cipher-algorithm communication cpp crypter cryptography cybersecurity decrypt decryption decryption-algorithm security shift-cipher tool
Last synced: 16 Jun 2025
https://github.com/lucianosarno/cryptography-udemy-course
Repo aimed to support and demonstrate cryptography practice following Udemy course (https://www.udemy.com/course/learn-cryptography-basics-in-python)
cryptography cybersecurity python
Last synced: 13 Aug 2025
https://github.com/sajad-net/pymorse
python morse code and decode
cryptography morse morse-decider morse-encoder python python-morse
Last synced: 17 Mar 2025
https://github.com/php-standard-library/secure-random
Cryptographically secure random data generation for tokens, passwords, and nonces
cryptography random secure-random
Last synced: 24 May 2026
https://github.com/daisvke/ciphers
A set of ciphers.
cipher cryptography encryption encryption-algorithms encryption-decryption security-tools xor-cipher
Last synced: 14 Aug 2025
https://github.com/lucianoscarpaci/cryptography
Embark on a journey of cryptographic exploration as we delve into the intricate worlds of RSA and ElGamal encryption, crafted entirely from scratch without the aid of OpenSSL. Delve into the inner workings of these fundamental encryption algorithms, unraveling the complexities of secure data transmission.
algorithm-implementation asymmetric-cryptography cryptographic-algorithms cryptographic-security cryptography data-privacy elgamal-cryptosystem encryption-de key-generation rsa-algorithm secure-communication
Last synced: 14 Aug 2025
https://github.com/sadijr/pre-desafio-labsec
Pré desafio do Processo Seletivo PBAD/LabSEC 2019/1, necessário para as etapas subsequentes do mesmo.
aes-128 cryptography xor-cipher
Last synced: 30 Jun 2026
https://github.com/sajad-net/cryptoman
most used encryptions in CTFs
atbash ceaser-cipher cryptography ctf encryption-decryption rot13 virgenere
Last synced: 17 Mar 2025
https://github.com/thalesgroup/dke-service-setup
Setup guide for Luna Key Broker for Double Key Encryption
cryptography dataprotection dataprotectionondemand dke doublekeyencryption dpod hardware-security-module hsm m365 microsoft thales
Last synced: 17 Mar 2025
https://github.com/mjfreelancing/alloverit
A suite of libraries aimed at providing a simplified and consistent approach to cross-cutting and functional concerns.
appsync aspnet-core assertion binary-serialization cryptography dependency-injection entity-framework-core evaluator graphql json keyset-pagination logging mapping named-pipes reactive-ui serilog validation wpf
Last synced: 17 Aug 2025
https://github.com/alen-gebles/crypto-radar
Crypto tracker with React JS and Gecko API + Tailwind
cryptocurrency cryptography css gecko html5 javascript project react tailwind
Last synced: 10 Apr 2026
https://github.com/mumarshahbaz/treecrypt
A node-tree based encryption algorithm
algorthims cryptography cybersecurity encryption node random secure tree
Last synced: 17 Aug 2025
https://github.com/serene-arc/word-length-matcher
Tool to identify plaintext from ciphertext word lengths
cipher ciphertext ciphertext-attack corpus cryptography plaintext word-length
Last synced: 11 Apr 2025
https://github.com/jaymoneyjay/spring21-automated-decryption
Automated decryption of classical ciphers with neural networks.
cryptography neural-networks python security
Last synced: 17 Aug 2025
https://github.com/anshuman-singh-93/agrichain-frontend
blockchain cryptocurrency cryptography dapp
Last synced: 05 Oct 2025
https://github.com/rayniel95/subkey
This is a simple dockerfile for create a docker image with Substrate subkey tool.
blockchain cryptography docker subkey substrate
Last synced: 18 Aug 2025
https://github.com/labex-labs/ctf-for-beginners
In this course, you'll dive into the exciting world of Capture The Flag (CTF) challenges. Learn fundamental cybersecurity concepts and practical techniques through hands-on labs covering hidden files, weak passwords, open ports, misconfigurations, log analysis, directory traversal, environment variable leaks, script analysis, network exploits, a...
beginner capture-the-flag course cryptography cybersecurity forensics hacking hands-on hands-on-labs labex labs linux network-security penetration-testing programming reverse-engineering scripting security-fundamentals vulnerability-assessment web-security
Last synced: 25 Oct 2025
https://github.com/rhcarvalho/tiwe
Tiwe is a distributed multiplayer board game
cryptography game golang multiplayer peer-to-peer
Last synced: 29 Apr 2026
https://github.com/hiegz/des
An optimized implementation of the Data Encrpytion Standard (DES) in C
Last synced: 15 Jun 2025
https://github.com/danilosramos/cypher-cpp
Implementação de uma Cifra de Substituição em C++ para demonstrar conceitos de criptografia.
algorithms cpp cryptography object-oriented-programming
Last synced: 15 May 2026
https://github.com/grunmax/gorsaexample
Golang & Cryptography. RSA sample. Base64 and Serialization used.
base64 blowfish cryptography go golang rsa rsa-cryptography serialization sha256
Last synced: 03 Apr 2025
https://github.com/danutama/nextjs-aes-encryption
A simple and secure Next.js application to encrypt and decrypt files using AES CBC. Built with client-side using crypto-js, this app enables users to protect files with 128, 192, or 256-bit AES
advanced-encryption-standard aes aes-cbc aes-cipher aes-encryption algorithm cryptography landing-page nextjs rijndael
Last synced: 15 May 2026
https://github.com/sripwoud/cryptography
Modern Cryptography Primitives 101
basics cryptography primitives
Last synced: 03 Apr 2025
https://github.com/sajad-net/passwdb
A secure password manager in python, using AES algorithm to encrypt passwords.
cryptography getpass hash password-manager password-manager-cli pyperclip python python-password-manager sha256 sqlite3
Last synced: 17 Mar 2025
https://github.com/hexylena/poem-code
"The poem code is a simple, and insecure, cryptographic method which was used during World War II by the British Special Operations Executive (SOE) to communicate with their agents in Nazi-occupied Europe." - Wikipedia
cryptography historical-cipher
Last synced: 22 Aug 2025
https://github.com/sajad-net/pysafe
Encrypting files with AES algorithm.
aes aes-encryption aes-file-encryptor cryptography encryption-decryption-tool file-encryption gui-file-encryptor python python3
Last synced: 20 Aug 2025
https://github.com/rezameerr/ecc-framework
Elliptic Curve Cryptography (ECC) Framework, ECC, ECDH(E), ECDSA, EC ElGamal, ECIES, HMAC
argon2 blake2 cryptocurrency cryptography digest digital-signature ecc ecdh ecdhe ecdsa ecies elgamal elliptic-curve-cryptography elliptic-curves hmac kdf key-agreement keypair-generator symmetric-encryption twofish
Last synced: 17 Oct 2025
https://github.com/idhamm15/p10-cryptography
Cryptography Application With Java Programming
application-java cryptography java
Last synced: 14 Mar 2025
https://github.com/vertigovx/crypto-wallet-generator
A Python-based tool to generate and manage cryptocurrency wallets for Ethereum and Bitcoin, featuring a GUI, encryption, and decryption capabilities.
bitcoin crypto-wallet cryptocurrency cryptography ethereum python3
Last synced: 08 May 2026
https://github.com/adistrim/rsa-pkcs1_oaep-encryption
🔐 RSA encryption and decryption with PKCS1 OAEP padding scheme. Includes key pair generation, encryption with public key, decryption with private key, and secure cryptographic operations.
cryptography pycryptodome python rsa
Last synced: 02 May 2025
https://github.com/saorsa-labs/saorsa-fec
Core foundational crates for the Saorsa P2P ecosystem: saorsa-types, saorsa-fec (Forward Error Correction), and saorsa-rsps (Reed-Solomon with Proof Systems)
cryptography error-correction fec foundation networking p2p reed-solomon rust types
Last synced: 20 Jan 2026
https://github.com/unixpup/genpasswd
Cryptographically secure password generator using libsodium
clang cryptography password-generator security-tools sodium
Last synced: 02 Apr 2025
