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/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/valohai/openssh-key
Tools to deal with OpenSSH2 (RFC4716) keys in Python
cryptography keys openssh pki python ssh
Last synced: 02 Aug 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/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/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/cipherdogs/ed25519_to_curve25519
Convert ed25519 keys and sign to curve25519
crypto cryptography curve25519 ed25519 rust
Last synced: 16 Aug 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/armfazh/rhizomes
Rhizomes and the Roots of Efficiency — Improving Prio
crypto cryptography lagrange polynomials prio rhizomes
Last synced: 13 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/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/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/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/vcsjones/xaes-256-gcm-ruby
XAES-256-GCM for Ruby
cryptography ruby xaes-256-gcm
Last synced: 12 Dec 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/circa10a/l33tcrypto
Cryptography for the most l33t haxx0rs
cryptography encoder-decoder hacktoberfest
Last synced: 02 Oct 2025
https://github.com/jshawl/minisign
minisign, in ruby!
cryptography ed25519 minisign signature signature-verification
Last synced: 19 Oct 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/jonas089/badlands
Learning ZK proof systems and Key exchange cryptography.
Last synced: 10 Aug 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/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/jitendragangwar123/chainrust
ChainRust is a high-performance blockchain built in Rust, designed for secure and scalable decentralized applications.
actix-web blockchain cryptography rust
Last synced: 04 Oct 2025
https://github.com/mgoyal98/e2ee-adapter
A plug-and-play TypeScript package providing End-to-End Encryption (E2EE) middleware for Express.js and NestJS applications using hybrid encryption (AES-CBC + RSA).
aes-cbc cryptography e2ee encryption end-to-end-encryption express hybrid-encryption key-exchange middleware nestjs no-code-e2ee plug-and-play rsa secure-communication security typescript zero-config
Last synced: 16 Aug 2025
https://github.com/chronosgit/javary
Javary is a secure, Java-based personal diary application built with a client-server architecture. It enables users to create, store, and retrieve encrypted diary entries over a network, ensuring privacy and data persistence.
backend client cryptography diary frontend java jdbc junit mockito networking secure server slf4j testing
Last synced: 16 Aug 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/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/nthnn/xbin25
Go package designed for secure data serialization, combining state-of-the-art encryption, digital signatures, and multi-layer compression ensuring confidentiality, integrity, and authenticity.
cryptography cryptography-algorithms encryption encryption-decryption golang golang-library golang-package
Last synced: 17 Aug 2025
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/justscott/listcrypt
Symmetric cryptographic algorithm built with python3
cryptography encryption python38 symmetric-cryptography symmetric-key-cryptography
Last synced: 21 Jun 2026
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/niewidzialny84/cryptography-and-cryptoanalysis-lab
Studies laboratories about cryptography and cryptanalysis
cryptography python sha3 studies
Last synced: 24 Aug 2025
https://github.com/4l3x777/ecdsa
Elliptic Curve Digital Sign Algorithm [PrimeField]
big-numbers cryptography diffie-hellman digital-signature elliptic-curve-cryptography nist prime-fields
Last synced: 29 Jun 2026
https://github.com/ledger-things/kadena-rust-lib
A comprehensive Rust library for interacting with Pact smart contracts and the Kadena blockchain.
blockchain cryptography kadena pact rust-lang rust-library
Last synced: 27 Aug 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/epogrebnyak/vault
Encode and decode a local text file with password.
Last synced: 18 Apr 2026
https://github.com/exenon/cryptopals
Solutions to the Cryptopals Crypto Challenges
Last synced: 03 Oct 2025
https://github.com/flyingrobots/git-cms
A serverless, Git-native CMS built on pure plumbing. Stores content as signed commit messages on empty trees—no database required, just immutable Merkle DAGs.
auditability blog cms cryptography database git git-plumbing git-stunts gitops ledger provenance serverless signed-commits
Last synced: 20 Feb 2026
https://github.com/gitgab19/blockchain-address-list-generation
The focus of this repo is to retrieve the full list of addresses ever appeared into any transactions for some of the most famous blockchains using the secp256k1 curve. These Python scripts have been used for an academic research at Politecnico di Torino. If you want to know more about our paper, you can find it at https://arxiv.org/abs/2206.14107.
bitcoin blockchain cryptocurrency cryptography research research-paper secp256k1
Last synced: 09 May 2026
https://github.com/yuukiofuyu/campus
Simple Feedback Web to Connect Students with Lecturers Based on Python FLASK
cryptography daisyui decryption encryption flask flask-application flask-sqlalchemy flask-web flask-webapp python-app python-flask python-web python-webapp python3 simple-app simple-project simple-website tailwind web webapp
Last synced: 14 Apr 2025
https://github.com/radlikewhoa/rainbow-road
Rainbow table exercise for the Cryptography and Security module (krysi) at the FHNW.
cryptography hashing java rainbow-table
Last synced: 11 Nov 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/fsmaxb/public-keys
A collection of my public keys.
cryptography gpg keychain pgp ssh
Last synced: 18 Mar 2026
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/chanced/navajo
A cryptographic toolkit for Rust
crypto cryptography rust security
Last synced: 19 Jan 2026
https://github.com/rafael-santiago/zacarias
Password manager with kernel mode powers (FreeBSD, Windows and Linux)
aes-encryption argon2 crypto cryptography cypherpunks databaseless device-driver freebsd gcm infosec kernel-module linux minimalistic out-of-the-box password-generator password-manager privacy-tools strong-cryptography suckless windows
Last synced: 06 May 2026
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/guppster/ark-nim
A Nim library simplifying connection to the ARK blockchain
Last synced: 25 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/prongbang/aes_ctr
AES CTR - Counter Flutter plugin.
aes-ctr aes-ctr-mode cryptography decryption encryption flutter
Last synced: 04 Jan 2026
https://github.com/ableinc/polysecrets
A completely randomized order of secrets; built with security in mind.
application-security cryptography encryption jwt jwt-token password password-generator polysecrets secrets security security-tools server-security signing signing-certificates
Last synced: 29 Mar 2025
https://github.com/louislefevre/rsa
RSA cryptosystem for demonstrating the encryption and decryption of messages
algorithm cryptography decryption encryption rsa
Last synced: 30 Mar 2025
https://github.com/mttbernardini/mbencrypter
:closed_lock_with_key: This program will help you encrypting or decrypting some data or a file using MB's algorithm. NB: this project has been supeseded by https://github.com/mttbernardini/mbc
algorithm cryptography raw-data rawinput symmetric-keys text
Last synced: 26 Mar 2025
https://github.com/esno/ciphertext
a simple web-ui to crypt / decrypt text locally
aes-encryption cryptography webcryptoapi
Last synced: 27 Jun 2025
https://github.com/churro/avr-aes128-groestl256
Efficient AES-128 & Grøstl-256 Implementations for the AVR 8-bit Microcontroller Architecture
aes-128 atmega128 avr cryptography groestl-256
Last synced: 10 Apr 2025
https://github.com/demining/korean-version-of-bitcoin-blockchain-cryptanalysis
비트코인 암호화 분석 도구
attack bitcoin bitcoin-wallet btc cryptoanalysis cryptography privatekey secp256k1 vulnerability
Last synced: 10 Mar 2026
https://github.com/protomorphine/rsa-communication-system
Основные стадии процесса шифрования текстового сообщения с помощью алгоритма RSA
cryptography encryption matlab rsa
Last synced: 01 Jun 2026
https://github.com/projects-developer/top-10-bca-final-year-projects
The top 10 BCA final year projects include e-commerce website development, online survey and feedback systems, web scraping and data mining. Top 10 BCA Projects .Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials.
bca-project bca-projects blockchain btech-projects computer-science-projects computerscienceprojects cryptography final-year-projects finalyearprojects machine-learning machinelearning malware-projects mca-projects mtech-projects research-paper-project web-develpment
Last synced: 04 Jan 2026
https://github.com/demining/chinese-version-of-bitcoin-blockchain-cryptanalysis
比特币密码分析工具
attack bitcoin bitcoin-wallet btc cryptoanalysis cryptography privatekey secp256k1 vulnerability
Last synced: 10 Mar 2026
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/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/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/iprs-dev/drand-rs
Drand client in Rust
cryptography drand random-number-generators
Last synced: 26 Mar 2025
https://github.com/sammyne/sm4
A Go implementation of SM4 block cipher algorithm as specified by GM/T 0002-2012
Last synced: 18 Mar 2025
https://github.com/pur3miish/antelope-ecc
A universal JavaScript ECC digital signature and key utility package for Antelope based blockchains
antelope antelopeio-blockchain blockchain-technology crypto cryptography javascript sign-transactions signature signature-generation signature-verification
Last synced: 10 Apr 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/yash22222/cryptobank
Crypto Bank is a decentralized blockchain application that enables secure transactions between users. It allows users to create and manage transactions, mine blocks, and validate the blockchain. With a focus on transparency and security, Crypto Bank ensures the integrity of transaction records in a reliable digital currency platform.
backend blockchain blockchain-technology cryptocurrencies cryptography crytobank decentralized-applications flask frontend mining validity
Last synced: 14 May 2026
https://github.com/amculin/php-vigenere-cipher
Simple implementation of Vigenere Cipher algorithm in PHP, also implement modification to support alpha-numeric characters
classical-cryptography cryptography php php82 php83 vigenere-cipher
Last synced: 07 Jun 2026
https://github.com/lucasbn/rsa
A simple implementation of RSA encryption
cryptography encryption python rsa
Last synced: 17 Mar 2025
https://github.com/deadblackclover/ed25519_to_curve25519
Convert ed25519 keys and sign to curve25519
crypto cryptography curve25519 ed25519 rust
Last synced: 13 Jan 2026
https://github.com/apavazza/passwordmanager
A command line password manager
cpp cryptography encryption password-manager
Last synced: 17 Mar 2025
https://github.com/virgilsecurity/virgil-pythia-x
Virgil Pythia SDK allows developers to communicate with Virgil Pythia Service and implement Pythia protocol in order to generate a BrainKey.
brainkey cryptography encryption pythia pythia-sdk sdk virgil-pythia
Last synced: 09 May 2025
https://github.com/gat786/cryptography
Python scripts for the basic crytography techniques that are taught in our college
Last synced: 17 Mar 2025
https://github.com/vitkarpenko/cryptopals
:anger: Solving the cryptopals crypto challenges in Python for fun and profit!
challenge cryptography cryptopals python
Last synced: 15 May 2025
https://github.com/desgeeko/kryptos
A practical introduction to Kryptos K1-K3 brute-force decryption
brute-force cryptography decryption jupyter kryptos python transposition vigenere
Last synced: 29 Jun 2026
https://github.com/magical/deoxys
Go implementation of the Deoxys-II authenticated encryption scheme
Last synced: 24 Mar 2025
https://github.com/magical/go-ascon
Go implementation of Ascon-128, Ascon-Hash, Ascon-Xof, Ascon-128a and Ascon-Hasha
Last synced: 24 Mar 2025
https://github.com/contisimone99/bulletin-board-system
Cryptography-focused messaging platform with Perfect Forward Secrecy, developed for cybersecurity education. Implements secure user registration (email challenge-response), encrypted message posting, and replay attack protection using raw OpenSSL primitives.
bulletin-board cpp cryptography openssl
Last synced: 02 Jul 2025
https://github.com/eldersantoss/pycertmanager
Module to assist in the programmatic management of PFX digital certificates on Windows operating system.
certificate cryptography pfx pki powershell windows
Last synced: 20 Jan 2026
https://github.com/miraclx/xstrip-auth
Cryptographically strong pseudorandom key generator based on the `XStrip Algorithm`
cipher cryptography encrypt pbkdf2withhmacsha512 pseudorandom
Last synced: 28 May 2026
https://github.com/opendream/vanityssh-rust
VanitySSH-Rust is a Rust-based project designed to generate SSH keys with customizable prefixes or patterns. It emphasizes performance and security, leveraging Rust's strengths for efficient cryptographic operations and minimal resource usage.
cryptography key-generation rust ssh vanity-key
Last synced: 16 Jan 2026
https://github.com/dhanya-abhirami/cryptography-algorithms
Implementation of Traditional Ciphers
caesar-cipher cryptography hill-cipher playfair-cipher vigenere-cipher
Last synced: 31 Mar 2025
https://github.com/abstractionslab/c5dec
C5-DEC (Common Criteria for Cybersecurity, Cryptography, Clouds – Design, Evaluation and Certification) part of the CyFORT project: a suite of methods and CAD tools dealing with the creation and evaluation of secure IT systems according to the CC standards, capturing SSDLC, V&V, and our cyber-physical system security assessment method
asciimatics bootstrap cad common-criteria cryptography cybersecurity devsecops doorstop flask git openproject pandoc project-management python3 quarto resource-management secure-software ssdlc system-security-risk-assessment threat-modelling
Last synced: 06 Jan 2026
https://github.com/cmason3/portfwd
TCP/UDP Port Forwarder
chacha20-poly1305 cryptography golang post-quantum tcp udp
Last synced: 24 Mar 2025
https://github.com/ppad-tech/sha256
Pure Haskell SHA-256, HMAC-SHA256
cryptography hashing haskell sha2 sha256
Last synced: 03 Jul 2025
https://github.com/dianpermana/cryptography
Cryptography: Encryption and Decryption as part of Security Test ( JavaScript + Groovy + .Jar File )
aes-encryption-decryption base64-encoding comp128 crc-algorithms crypto cryptography des-encryption-decryption hash hmac jmeter jwt rc4-algorithm smartcard
Last synced: 24 Mar 2025
https://github.com/vechain/thor-devkit.java
Java (8+) library to assist a smoother development process on VeChainThor for all developers and hobbyists. Includes wallets creation, transaction assembling, signature, ABI encoding, and bloom filter.
bloom-filter crypto cryptocurrency cryptography hd-wallet java keystore mnemonic-wallets sdk thor-devkit vechain
Last synced: 27 Nov 2025
https://github.com/georgiifirsov/galois-lib
Finite field arithmetic library written for my research in cryptography
arithmetic cryptography finite-field-arithmetic finite-field-arithmetics finite-fields galois-field mathematics symmetric-cryptography
Last synced: 12 Apr 2025
https://github.com/umstek/magnum-cipher
Proof-of-concept Product Cipher using cryptography classics (CS3052 Computer Security - Assignment)
cryptography encryption-algorithm product-cipher substitution-permutation-network
Last synced: 11 Jun 2025
https://github.com/ilyakotsar/e2ee-js
End-to-End Encrypted Chat You Can Trust
chat cryptography diffie-hellman-algorithm encryption end-to-end-encryption messenger
Last synced: 18 Mar 2025
https://github.com/hirotoshioi/cryptopals-in-js
Working on http://cryptopals.com/ challenges
cryptography cryptopals javascript
Last synced: 16 Mar 2025
https://github.com/yogsec/secure-communication-tool
A Bash-based encryption & decryption tool using AES-256-CBC, allowing secure message exchange with a single password. Easy-to-use CLI for bug bounty hunters, security researchers, and privacy enthusiasts.
communication communication-tool cryptography cybersecurity-tool hackers hacking hacking-tool secure-communication
Last synced: 14 Oct 2025
https://github.com/samuel-lucas6/tango12
A stream cipher based on BLAKE2b.
blake2 blake2b blake2b-hash-algorithm cipher crypto cryptography encryption keystream stream-cipher
Last synced: 11 Jun 2025
