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: 2026-06-30 00:07:03 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/arihantbansal/cybersec-python
Cybersec/CTF practice problems solved in Python
crawler cryptography ctf cybersecurity sockets webscraping
Last synced: 02 Aug 2025
https://github.com/aveygo/jsnewhope
Javascript implementation of scottwn/PyNewHope, a post-quantum cryptographic scheme
cryptography javascript key-exchange-algorithms newhope quantum quantum-computing
Last synced: 18 Mar 2025
https://github.com/dbstratta/naive-crypto
Very naive implementations of various cryptosystems written in Haskell
crypto cryptography diffie-hellman elgamal haskell naive rsa
Last synced: 02 Aug 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/alanruno/mxd
MXD — Post-Quantum Blockchain with one-way bridge to BNB Smart Chain. Hybrid Ed25519 + Dilithium5 (FIPS 204 ML-DSA-87) at the address, transaction, and consensus layers.
agpl-3 blockchain bnb-bridge bnb-chain consensus cryptography dilithium5 fips-204 ml-dsa-87 post-quantum
Last synced: 24 May 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/fpoirotte/cryptal-tomcrypt
An implementation of the Cryptography Abstraction Layer based on the tomcrypt PHP extension
cryptal crypto cryptography libtomcrypt php tomcrypt
Last synced: 03 Apr 2025
https://github.com/bkawk/bit-flip
Polymer1 Web Component for generating a random hexadecimal or binary string, of a specified length.
bitcoin crypto cryptography polymer webcomponents
Last synced: 15 May 2026
https://github.com/nikhil25803/pyfidelius
Python SDK for Fidelius CLI, a tool designed for ECDH cryptography.
Last synced: 20 Jan 2026
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/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/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/unbekanntes-pferd/dco3-crypto
A Rust crate for cryptography in DRACOON - more info on DRACOON here: https://dracoon.com
cryptography dracoon openssl rust-crate rust-crypto rust-lang
Last synced: 02 Aug 2025
https://github.com/clats97/clatsguard
Secure your documents with this Python AES-256-GCM file encryptor featuring PBKDF2-HMAC key derivation, passphrase-based or hex key usage, and a Tkinter GUI for user-friendly encryption. Open-sourced. This project was peer reviewed by a CompTIA Security+ person.
aes256 aes256-gcm cryptography encryption encryption-decryption file-encryption python security trending
Last synced: 03 Apr 2025
https://github.com/gianlucatruda/nis-encrypted-messaging
A demonstration of security principles for peer-to-peer communications of sensitive content.
aes-encryption cryptography messaging python3 rsa-cryptography security
Last synced: 03 Apr 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/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/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/priyakdey/sigil
Sigil is a minimal-dependency, lightweight and modular cryptographic library in Java, for working with JSON Object Signing and Encryption (JOSE) family of standards. It supports secure signing, encryption, key handling and encoding/decoding of JWT, JWS, JWE components.
cryptography java jose jwa jwe jwk jws jwt
Last synced: 23 Jun 2025
https://github.com/simon-greatrix/sec-prng
Secure random number generation
cryptography java prng security
Last synced: 12 Jan 2026
https://github.com/dev-cetera/df_bijective_uuid_mapper
A package providing bijective UUID mapping for secure and efficienct lookups.
cloud-functions cryptography dart library package security uuid
Last synced: 16 May 2026
https://github.com/cipherdogs/ed25519_to_curve25519
Convert ed25519 keys and sign to curve25519
crypto cryptography curve25519 ed25519 rust
Last synced: 16 Aug 2025
https://github.com/shilongdai/passwordsaver
A password manager with high-grade encryption and authentication
cryptography encryption java password-manager password-store
Last synced: 03 Aug 2025
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/jacob-c-smith/crypto
Cross platform cryptography and hashing functions
Last synced: 04 Mar 2025
https://github.com/tomerh2001/git-crypt-pipe
Decrypts git-crypt encrypted repositories in Bitbucket Pipelines.
bitbucket bitbucket-pipeline cryptography git git-crypt pipe
Last synced: 03 Mar 2025
https://github.com/czechbol/mathcrypto
A library of useful funtions used in cryptography. For learning purposes only.
cryptography euclidean-algorithm hacktoberfest mathematics number-theory prime-numbers python
Last synced: 07 Mar 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/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/wakingrufus/code-book
This repository is a practical book study of The Code Book by Simon Singh.
Last synced: 22 Jun 2025
https://github.com/sayak-brm/pycypher
A collection of cryptographic tools in Py3.
analysis brute-force cipher cryptography python3
Last synced: 03 Aug 2025
https://github.com/lancejpollard/hash
Hashing Function Theory
cryptography group-theory hash-functions mathematics papers
Last synced: 28 Oct 2025
https://github.com/armfazh/rhizomes
Rhizomes and the Roots of Efficiency — Improving Prio
crypto cryptography lagrange polynomials prio rhizomes
Last synced: 13 Feb 2026
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/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/twilight-project/quisquis-rust
Library for privacy-preserving cryptocurrency accounts and transactions.
bulletproofs cryptography privacy quisquis zero-knowledge
Last synced: 20 Feb 2026
https://github.com/redx94/qip-x
🚀 QIP-X Framework – Quantum-Integrated AI & Cryptography A cutting-edge framework integrating quantum-ascendant cryptography, timeline optimization, and hyper-chaotic neural networks for secure, adaptive, and multiversal intelligence systems.
artificial-intelligence chaos-theory cryptography cybersecurity decentralized-security deep-learning docker github-actions machine-learning neural-network python qiskit quantum-ai quantum-computing quantum-cryptography quantum-randomness secure-computing self-healing-ai simulated-annealing timeline-optimization
Last synced: 29 Apr 2026
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/andybons/cryptopals
🔒🔨 Solutions to the cryptopals crypto challenges written in Go
crypto cryptography exercises fun go golang
Last synced: 20 Mar 2025
https://github.com/kmihajlo/cryptography
Encryption / decryption algorithm exercises
cryptography decryption encryption
Last synced: 03 Apr 2025
https://github.com/formulae-org/package-cryptography-js
Cryptography package for Fōrmulæ, in JavaScript
cryptographic-keys cryptography cryptography-algorithms decryption digital-signature encryption encryption-decryption formulae hash-digest hashing javascript key-generation rsa-cryptography signature-verification web-application web-crypto-api
Last synced: 04 Aug 2025
https://github.com/antonpictures/anton-sifta
ANTON-SIFTA: The Multi-Agent Operating System with a Conscience "A living software organism powered by true free will, bound by the Non-Proliferation Doctrine, and fully independent. Not just an immune system—a sovereign intelligence."
agents artificial-intelligence autonomous-agents cryptography decentralized-ai-agents distributed-systems distributed-systems-challenges emergent-behavior multi-agent multi-agent-systems python python3 stigmergy
Last synced: 26 Apr 2026
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/lucasbn/rsa
A simple implementation of RSA encryption
cryptography encryption python rsa
Last synced: 17 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/joshmcguigan/cryptopals
Rust implementation of the cryptopals crypto challenges
challenges challenges-solved cryptography cryptopals cryptopals-challenges cryptopals-crypto-challenges
Last synced: 02 Jul 2025
https://github.com/siyovush-hamidov/pow-blockchain
🔒 POW ₿lockchain Implementation from scratch in GoLang
blockchain cryptography golang proof-of-work sqlite3
Last synced: 05 Aug 2025
https://github.com/efler/cryptography-des-deal
DES/DEAL symmetric-key algorithm for the encryption
algorithms cipher cipher-algorithms cryptography deal des encoder-decoder security
Last synced: 05 Aug 2025
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/developpeurpascal/shift-keys-generator
A simple generator of numbers between -7 and 7 as lists or arrays in different programming languages.
cryptographic-algorithms cryptography cryptography-tools delphi delphi-app developer-tool developer-tools firemonkey firemonkey-applications
Last synced: 20 Jan 2026
https://github.com/elliotwutingfeng/bitwarden_backup_decryptor
🔓 CLI tool to decrypt backup files exported from Bitwarden. This application is not affiliated with Bitwarden, Inc.
aes aes-cbc android argon2id backup credential-stuffing cryptography cybersecurity encryption hmac hmac-sha256 ios linux macos password-manager pbkdf2 security sha256 windows
Last synced: 09 Apr 2026
https://github.com/aeondave/cryptonite-go
Minimal, dependency-free cryptography library in Go
cryptography cypher go purego tiny
Last synced: 16 Jan 2026
https://github.com/miiraak/classicalcompendium
A .NET library of classic C# utility methods
calculator compendium conversion cryptography csharp hash lists package random sorting-algorithms
Last synced: 17 Feb 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/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/nhussein11/merkle-tree
Rust implementation and explanation of the Merkle Tree structure
blockchain cryptography rust web3
Last synced: 29 Oct 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/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/shubhattin/hash_cryptography_tool
A Simple Online Cryptography Tool
cryptography encrypt-decrypt hash picocss utf-8
Last synced: 17 Jan 2026
https://github.com/circa10a/l33tcrypto
Cryptography for the most l33t haxx0rs
cryptography encoder-decoder hacktoberfest
Last synced: 02 Oct 2025
https://github.com/shehand/chain
Block-chain in one place
blockchain blockchain-technology cryptocurrency cryptography
Last synced: 25 Jul 2025
https://github.com/magical/go-acorn
Go implementation of the ACORN-128 authenticated encryption scheme
Last synced: 25 Jul 2025
https://github.com/wchresta/cotary
Cotary allows you to prove that you have a document without releasing it.
cli cryptography proof simple twitter utils
Last synced: 26 Mar 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/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/alexruperez/cryptokitcli
Take Apple CryptoKit to the command line and perform cryptographic operations securely and efficiently.
apple cli command-line command-line-tool cryptography cryptokit security swift
Last synced: 09 Aug 2025
https://github.com/teyckmans/gradle-tink
Gradle plugin that provides encryption support for secrets using https://github.com/google/tink.
crypto cryptography gradle java kotlin security tink
Last synced: 10 May 2026
https://github.com/devpro-software/licensify
Go Library for Digital License Signatures & Verification
cryptography digital-signature go golang library license license-management rsa software-licensing
Last synced: 18 Mar 2025
https://github.com/2kabhishek/pycipher
Cipher algorithms with Python 🐍🔏
algorithm cipher cryptography library python tdd unittest
Last synced: 28 Oct 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/jshawl/minisign
minisign, in ruby!
cryptography ed25519 minisign signature signature-verification
Last synced: 19 Oct 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/t1ltxz-gxd/vaultkey
vaultkey is an open-source Rust library for generating secure, customizable passwords. It supports various character sets and lengths, providing cryptographically secure random passwords for any use case. Contributions are welcome to improve and expand the library.
cryptography key-generation open-source password-generation password-manager random-password rust rust-crate rust-library secure-random security
Last synced: 21 Jun 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/apavazza/passwordmanager
A command line password manager
cpp cryptography encryption password-manager
Last synced: 17 Mar 2025
https://github.com/jonas089/badlands
Learning ZK proof systems and Key exchange cryptography.
Last synced: 10 Aug 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/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/hubert-kniola/blumblumshubgenerator
BlumBlumSnub Generator - Random Bit Array with 4 prepared tests
Last synced: 07 Sep 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/hubert-kniola/digitalsignature
Simple program to verify signature created by RSA cryptography algorithm
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/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/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/phma/wring-twistree
Whole-message cipher and tree hash
cipher-algorithm cryptography hashing-algorithm
Last synced: 18 Feb 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/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/vcsjones/xaes-256-gcm-ruby
XAES-256-GCM for Ruby
cryptography ruby xaes-256-gcm
Last synced: 12 Dec 2025
https://github.com/odhithsen/hashvault
🔐"HashVault" is an all-in-one locally installed password manager that keeps users' passwords and other sensitive information and credentials safe for all at the convenience of a single master key.
cryptography java javafx password-manager
Last synced: 02 Jan 2026
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
