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/iwas-coder/cryrsa
RSA key creator, extractor and compute tool. Useful to process keys with small modulus and try to factorize them.
asymmetric-cryptography cryptography private-key-cryptography public-key-cryptography rsa
Last synced: 20 Jul 2025
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/hubert-kniola/blumblumshubgenerator
BlumBlumSnub Generator - Random Bit Array with 4 prepared tests
Last synced: 07 Sep 2025
https://github.com/hubert-kniola/digitalsignature
Simple program to verify signature created by RSA cryptography algorithm
Last synced: 12 Apr 2025
https://github.com/velipso/staticvault
Encrypt, host, and share files on a static website
browser-app cli-tool cryptography encryption file-encryption frontend javascript nodejs privacy secure-storage self-hosted static-site vault web-security zero-knowledge
Last synced: 22 Jul 2025
https://github.com/samuel-lucas6/daence.net
A .NET implementation of ChaCha-Daence.
aead chacha20 crypto cryptography daence hchacha20 poly1305 siv xchacha20
Last synced: 27 Mar 2025
https://github.com/envoy-vc/nillion-tools
A developer-centric toolkit that simplifies building on the Nillion network.
components-react cryptography key-management nilion-nada nillion npm-package toolkit
Last synced: 30 Oct 2025
https://github.com/minapecheux/medusa
A small encoding/decoding Python lib.
Last synced: 02 Nov 2025
https://github.com/cryptimeleon/android-demo
An example project with instructions on how to use cryptimeleon on android.
android android-app cryptography mcl pairing
Last synced: 12 Jan 2026
https://github.com/multifactor/ssskit
Fast, small and secure Shamir's Secret Sharing library crate
cryptography shamir-secret-sharing
Last synced: 07 Apr 2026
https://github.com/divshekhar/decipher
Breaking transposition cipher using metaheuristic algorithms
cryptanalysis cryptography dpso-algorithm genetic-algorithm geneticalgorithm jaya-algorithm mpso-algorithm pso-algorithm transposition-cipher
Last synced: 02 Nov 2025
https://github.com/flucium/hsum
hsum is a simple cli tool that compute the hash digest
cryptography hash hsum rust security sha2 sha3
Last synced: 18 Mar 2025
https://github.com/amul-thantharate/ciphersmith
A powerful and flexible command-line password generator that helps you create strong, secure passwords with ease.
Last synced: 23 Jul 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/vancenceho/50.005-computer-system-engineering
50.005 Computer System Engineering - Labs & Programming Assignments
computer-systems-and-networks computer-systems-engineering cryptography networks operating-systems
Last synced: 05 Jul 2025
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/mohammedmehdio/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 security-tools shift-cipher tool
Last synced: 23 Jul 2025
https://github.com/yazatamorph/pinkdf2
Gleam bindings to fast_pbkdf2 NIF for PBKDF2 (Password-Based Key Derivation Function 2) on Erlang.
Last synced: 10 Apr 2025
https://github.com/factomproject/java-identitykeys
Allows you to implement Factom identity keys in Java.
blockchain-technology cryptography digital-identity factom factom-blockchain public-key-cryptography
Last synced: 11 Apr 2025
https://github.com/mindreadio/qsafecrypto
A secure and user-friendly open-source cryptography library, offering modern cryptographic APIs that are resistant to quantum attacks. Protect your data with ease and confidence using advanced quantum-resistant algorithms.
aes-256 aes-encryption aes-gcm aes-gcm-encryption base58 cryptography decryption encryption encryption-algorithms encryption-decryption pycryptodome python quanta quantam quantam-resistant quantam-safe quantum-computing tink
Last synced: 08 Apr 2026
https://github.com/oxion7/rc4-rust
RC4 algorithm in rust
algorithm cipher cryptography stream-cipher
Last synced: 14 Jun 2026
https://github.com/whyvl/fuzzyibe
A Haskell implementation of Fuzzy Identity Based Encryption modified to work over asymmetric bilinear pairing
cryptography haskell identity-based-encryption
Last synced: 13 Jun 2025
https://github.com/verkush/lockboxpro
The LockBoxPro is an advanced software solution designed to facilitate the creation and evaluation of cryptographic algorithms.
cryptography electronjs generator
Last synced: 20 Jan 2026
https://github.com/sip-protocol/circuits
Noir ZK circuits for SIP Protocol - Funding, Validity, Fulfillment proofs
barretenberg blockchain cross-chain cryptography halo2 near-protocol noir privacy rust solana zero-knowledge-proofs zk-snarks zksnark
Last synced: 07 Mar 2026
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/crodriguezvega/go-knapsackcrypto
Knapsack crypto systems in Go
crypto cryptography cryptography-library go golang knapsack-crypto knapsack-encryption merkle-hellman merkle-hellman-knapsack public-key-cryptography
Last synced: 12 Apr 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/wannaverseofficial/kmp-crypto
Common cryptography library for Kotlin Multiplatform
aes android crypto cryptography ed25519 hashing ios kmp kotlin-multiplatform rsa secure-random
Last synced: 21 May 2026
https://github.com/marcode24/criptografia
🔐 This is a cryptography project testing, using base64 and AES criptography
aes aes-encryption base64 cryptography css decoding encoding encryption encryption-algorithms html nodejs
Last synced: 06 Apr 2026
https://github.com/kurosci/qrypto
The post-quantum cryptography library in pure Rust.
crypto cryptography post-quantum post-quantum-cryptography qrypto rust
Last synced: 22 Mar 2025
https://github.com/fardinhash/cryptography-python
All about Cryptography tools & techniques. Python implementation.
crypto cryptography cryptography-algorithms cryptography-library cryptography-python cryptography-tools decryption encryption encryption-algorithms encryption-decryption python-cryptography python-encryption
Last synced: 16 Jun 2025
https://github.com/dannweeeee/zk-encode
Coding Bootcamp about ZK Proof Theory and Building
cairo cryptography modular-arithmetic rust zk-proofs zk-snarks
Last synced: 06 Sep 2025
https://github.com/alekseibalan/usfs
USFS - unsigned short file system
cryptography docker docker-hub dynamodb file-system ftp-server mongodb quality usfs
Last synced: 15 May 2026
https://github.com/crownedgrouse/preach
[WIP] Phi base Random Encoder Aimed for Cryptography Hardening
Last synced: 06 Apr 2025
https://github.com/travishorn/diceware-js
Cryptographically-secure electronic implementation of the Diceware Passphrase method in JavaScript.
crypto cryptography diceware passphrase password security
Last synced: 27 Mar 2025
https://github.com/ajay-dhangar/crypto
My submition for the Microsoft Future Tech 2022 Hackathon
crypto cryptocoins cryptocurrencies cryptocurrency cryptocurrency-exchanges cryptography
Last synced: 30 Mar 2025
https://github.com/ishanoshada/lockix
A secure file encryption and decryption tool
cryptography encryption files security
Last synced: 07 Mar 2026
https://github.com/slayernominee/cryptographic-algorithms
just some cryptographic algorithms to learn it
Last synced: 06 Jul 2025
https://github.com/jakubvojvoda/rsa-cryptography
Simple RSA implementation using GMP
cpp cryptography decryption encryption gmp rsa
Last synced: 14 May 2025
https://github.com/h5law/vinegar
A Golang library for creating and using Vigenere Ciphers
cryptography encryption-decryption vigenere vigenere-cipher vigenere-cipher-algorithm
Last synced: 17 Mar 2025
https://github.com/synacktraa/satcoin
[ SynAckTra coins ] - A demonstration of the workings of blockchain. [WIP]
blockchain certificate-authority cryptocurrency cryptography demonstration faucet python3 wallet
Last synced: 21 Mar 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/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/virgilsecurity/virgil-cryptoapi-x
This framework provides Crypto API to separate VirgilSDK from concrete Crypto implementation
carthage cocoapods crypto cryptography ios macos virgil
Last synced: 16 May 2026
https://github.com/gcarreno/go-randomx
A Go wrapper of RandomX
consensus consensus-algorithm cryptocurrencies cryptocurrency cryptography go golang pow proof-of-work randomx
Last synced: 09 Jul 2025
https://github.com/theoddysey/ceaser-cipher-python
Ceaser Cipher Encryption using Python
ceaser-cipher cryptography encryption-decryption python
Last synced: 26 Mar 2025
https://github.com/drwheelicus/encoderize
Turn your text into a cryptographic masterpiece
actions cli cryptography image-generation package pytest python svg visualization
Last synced: 30 Apr 2025
https://github.com/pmuens/ecc-ts
Elliptic Curve Cryptography implementation of ECDH and ECDSA on curve secp256k1
cryptography cryptography-algorithms cryptography-library ecdh ecdsa elliptic-curve elliptic-curve-cryptography elliptic-curve-diffie-hellman elliptic-curve-digital-signature-algorithm secp256k1
Last synced: 15 May 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/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/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/fsmaxb/public-keys
A collection of my public keys.
cryptography gpg keychain pgp ssh
Last synced: 18 Mar 2026
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/varun-doshi/modc
Rust Library for Finite Field Arithmetic
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/sheroz/sheroz
back-end cryptography databases distributed-systems rust security
Last synced: 01 Mar 2026
https://github.com/gcarreno/go-randomhash
A Go implementation of RandomHash
consensus consensus-algorithm cryptocurrencies cryptocurrency cryptography go golang pow proof-of-work random-hash randomhash
Last synced: 09 Jul 2025
https://github.com/waasiq/rc5-cryptosystem
An implementation of RC5 Cryptography Algorithm
algorithm cryptography python3 streamlit-webapp
Last synced: 07 Jul 2025
https://github.com/arthursudbrackibarra/t2-seguranca-de-sistemas
Trabalho 2 de Segurança de Sistemas.
cryptography java rsa security
Last synced: 22 Mar 2025
https://github.com/radlikewhoa/supernatural
Substitution Permutation Network exercise for the Cryptography and Security module (krysi) at the FHNW.
Last synced: 26 Jun 2025
https://github.com/4l3x777/magma
GOST 34.12-2018 (GOST 28147-89) x64 asm realization
Last synced: 14 May 2026
https://github.com/thehashiramasenju/dag-livestocx
🌾 LivestocX: Revolutionizing LiveStock Asset finances through blockchain | Farmers tokenize assets, investors fund globally | Built for BlockDAG Hackathon 2025
backend blockchain blockchain-technology blockdag blockdagtestnet cryptocurrency cryptography dapp decentralized ethereum ethereum-blockchain ethersjs front-end-development primordial reactjs solidity vercel vercel-deployment webapp
Last synced: 09 Apr 2026
https://github.com/lucasbn/rsa
A simple implementation of RSA encryption
cryptography encryption python rsa
Last synced: 17 Mar 2025
https://github.com/madhurimarawat/codeculture-daily
A daily programming challenge repository where fun meets learning! With 39 challenges over 39 days, it helps coders enhance skills through practical tasks and interview prep. While maintenance is paused, contributions are welcome, and future expansions are planned to keep learning ongoing.
beginner-friendly code-repository cryptography daily-problems daily-progaramming intemediate-questions java javascript non-tech-questions official-solutions personality-development problem-of-the-day programming-contest python soft-skills tech-questions technologies tools website-deploy winner-announcement
Last synced: 10 Apr 2026
https://github.com/virgilsecurity/virgil-keyknox-kotlin
KeyKnox SDK allows developers to communicate with the Virgil Keyknox Service to upload, download, and synchronize encrypted sensitive data (private keys) between user's devices.
cryptography data-sharing keyknox sdk
Last synced: 23 Jul 2025
https://github.com/samdney/research-sites
List of useful websites for math, algebra, number theory, cryptography, online security and privacy research.
algebra archive computer-science cryptography help latex list math mathematics maths number-theory reprint research tools webiste
Last synced: 22 May 2026
https://github.com/skulltech/cryptanalysis-scripts
Some scripts for automated, algorithmic cryptanalysis.
classical-cipher classical-cryptography cryptanalysis cryptography
Last synced: 27 Mar 2025
https://github.com/shreyansh26/solving-substitution-ciphers-using-mcmc
Solving substitution ciphers using Markov Chain Monte Carlo (MCMC)
cryptography mcmc probability sampling-methods substitution-cipher
Last synced: 03 Mar 2025
https://github.com/mikeleo03/classic-cryptography-simulator_frontend
Frontend side of simulator for well-known classic cipher algorithms with React Typescript and Golang
cipher-algorithms cryptography golang react-typescript shadcn-ui website
Last synced: 17 May 2026
https://github.com/chrishubert/password-manager-crypt
🔐 Secure, zero-dependency cryptographic library for password managers with universal runtime support (Node.js, CloudFlare Workers, Browsers)
browser cloudflare-workers cryptography encryption nodejs password-manager security typescript webcrypto zero-knowledge
Last synced: 17 May 2026
https://github.com/varun-doshi/relliptic
Finite Field Elliptic Curves in rust
cryptography elliptic-curves rust zk
Last synced: 20 Jul 2025
https://github.com/hanzopgp/steganography
Cryptography project.
cryptography jupyter-notebook steganography university
Last synced: 29 May 2026
https://github.com/erich-9/CryptographicHashFunctions.jl
Fast cryptographic hash functions for Julia
cryptographic-hash-functions cryptography hash-functions julia
Last synced: 06 Apr 2026
https://github.com/constantiner/cram-md5-digest-js
CRAM-MD5 digester implementation in JavaScript
base64 client-server client-side cryptography digester hash javascript library md5
Last synced: 28 Mar 2025
https://github.com/mahmoud-joumaa/csc435_labreports
A collection of lab reports submitted as part of the CSC435 (Computer Security) course at the Lebanese American University.
buffer-overflow cryptography malware-analysis web-attacks
Last synced: 06 Jan 2026
https://github.com/simon-greatrix/sec-prng
Secure random number generation
cryptography java prng security
Last synced: 12 Jan 2026
https://github.com/markus28/steganography
Steganography: Encrypt and hide any data in an image, video or audiofile
cryptography python steganography
Last synced: 18 Aug 2025
https://github.com/PeaceFounder/OpenSSLGroups.jl
OpenSSL elliptic curve wrapper for CryptoGroups
cryptography elliptic-curves openssl
Last synced: 06 Apr 2026
https://github.com/i-umairkhan/signature_validation
Validate signature using asymmetric cryptography.
cryptography ethereum javascript
Last synced: 17 May 2026
https://github.com/super-lou/hack_adobe-cc_2024-
new hack anti hack adobe crack 20024
adobe adobe-photoshop-2023-crack adobe-photoshop-crack canonical-urls cracked crypto cryptocurrency cryptography pirate-bay pirate-party pirates-of-the-caribean
Last synced: 25 Jul 2025
https://github.com/badkeys/miscscripts
Misc helper and analysis scripts created during the development of badkeys
cryptography dkim dnssec ed25519 jwk prime rsa spki
Last synced: 18 Feb 2026
https://github.com/koh-gt/multiply
A powershell script to multiply large numbers, showing all digits.
128-bit 256-bit 512-bit 64-bit base2 bignum cryptography ecdsa multiply octal powershell quaternary seximal ternary
Last synced: 18 Mar 2025
https://github.com/magical/go-acorn
Go implementation of the ACORN-128 authenticated encryption scheme
Last synced: 25 Jul 2025
https://github.com/subatomicplanets/shieldmessenger
A simple end-to-end encrypted messenger
android bcrypt cryptography e2ee encryption java messenger python rsa
Last synced: 10 May 2026
https://github.com/phma/wring-twistree
Whole-message cipher and tree hash
cipher-algorithm cryptography hashing-algorithm
Last synced: 18 Feb 2026
https://github.com/frankodoom/crypto.net
:lock: :key: :policeman: Pasword Hashing based on System.Security.Cryptography and OBVIEX
cryptography csharp hashing-algorithm password-hash system-security
Last synced: 07 Nov 2025
https://github.com/jacksonwalters/open-encrypt
Encrypted messaging webapp using lattice-based methods in Python + PHP + SQL
cryptography encryption homomorphic-encryption lattice-based lattice-based-cryptography module-lwe php post-quantum post-quantum-cryptography python ring-lwe sql
Last synced: 20 Mar 2025
https://github.com/sharif-minhaz/one-time_pad_algo-otm
One Time Pad algorithm (OTP) is a symmetric key type algorithm which means that the key used to perform encryption and decryption is the same key
Last synced: 23 Jun 2025
https://github.com/apavazza/passwordmanager
A command line password manager
cpp cryptography encryption password-manager
Last synced: 17 Mar 2025
https://github.com/dilbwagsingh/des-app
A simple app to demonstrate the power of the DESfiddle package
avalanche-effect cryptography data-encryption-standard desfiddle pypi-package python weak-keys
Last synced: 16 Jan 2026
https://github.com/bodrovis-learning/cryptobits-yt-series
Серия уроков Crypto bits на YouTube
crypto cryptocurrency cryptography
Last synced: 15 May 2025
https://github.com/redreaper420/reversible-image-censorship-tool
Primitive encryption and decryption scripts for PNG images.
censorship cryptography image image-manipulation numpy pillow png python steganography
Last synced: 17 May 2026
https://github.com/daim-nickel-penny/elixir
BlockChain based simple DAPP
blockchain-technology cryptography javascript
Last synced: 18 Jul 2025
https://github.com/swaechter/pkcs11
A purely Java based PKCS11 library based on project Panama/FFI/FFM - no JNI
Last synced: 23 May 2026
https://github.com/h0llyw00dzz/fiber2fa
This is a custom 2FA (Two-Factor Authentication) middleware for the Fiber web framework. It provides a secure and easy-to-use solution for implementing 2FA in Fiber applications. The middleware supports TOTP (Time-based One-Time Password) authentication and offers customizable configuration options.
advanced crypto cryptography fiber fiber-framework go golang idiomatic-go two-factor two-factor-authentication twofactor
Last synced: 19 Sep 2025
