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: 2026-07-01 00:06:48 UTC
- JSON Representation
https://github.com/ben854719/trade-transfer-workflow-optimizer
This AI portfolio tools securely analyzes asset allocation, sector exposure, and performance. Its graph compares real and predicted close prices, enhanced with sentiment indicators such as “Confident” and “Surprised.” An avatar assistant provides user guidance combining technical accuracy with intuitive explanations.
agentic-ai avatar cryptography emotion-analysis encryption gemini json langgraph langraph machine-learning-algorithms matplotlib mcp-server numpy opencv-python pandas python pytorch rs256 seaborn
Last synced: 15 Feb 2026
https://github.com/denizumutdereli/go-cryptography
Cryptography with golang
asymetric-cryptography base58 bip32 bip39 bip44 cryptography ecdsa elliptic-curve hdwallet ripemd160 sha256 sha3-256
Last synced: 10 May 2026
https://github.com/kizh4324/prodigy_cs_01
Implement Caesar cipher
caesar-cipher cryptography decryption encryption python
Last synced: 28 May 2026
https://github.com/h0llyw00dzz/ocsp-fiber
This PKIX OCSP Fiber Framework
advanced cryptography go idiomatic-go restful-api security
Last synced: 29 May 2026
https://github.com/siterelenby/keyquorum
Shamir secret sharing daemon for distributed teams. Memory hardened, designed to prevent intercepting or handling another user's key or the secret itself, without jank or vulnerability points like shared tmux sessions.
cli cryptography cryptography-tools distributed-teams key-management linux rust secret-sharing security shamir shamir-secret-sharing
Last synced: 12 Jun 2026
https://github.com/animo/expo-secure-environment
Expo Module for cryptographic operations using the devices Secure Environment behind biometric authentication.
android biometry cryptography expo ios react-native secure-environments typescript
Last synced: 16 Feb 2026
https://github.com/karlbateman/praetorian
A simple cryptographic key management service.
aes aes-256 aes-encryption compliance cryptography decryption encryption encryption-as-a-service gdpr-compliant golang key-rotation keyring
Last synced: 13 Jun 2025
https://github.com/tuokri/rs2-misc-tools-notes
Various RS2 modding related notes and code snippets.
cryptography reverse-engineering rising-storm-2-vietnam
Last synced: 18 Jan 2026
https://github.com/go-compile/mim
MIM is a Hash Visualization algorithm utilising 4x4 colour matrixes. This provides a quick and easy method to compare fingerprints, e.g. SSH keys, x509 certs etc. For both terminals (ANSI) and desktop, mobile & web (SVG).
ansi crypto cryptography fingerprint hash image randoart ssh svg verification visualization x509
Last synced: 16 Apr 2026
https://github.com/harens/kintercrypt
An easy-to-use encryption program, built from the ground up for educational purposes only
cryptography tkinter xor-cipher
Last synced: 13 Jun 2025
https://github.com/k2/stylometrics
Stylometric Stenography LLM Generation Attribution DRM/DLP
content-attribution content-security content-verification cryptography data-embedding data-loss-prevention digital-rights-management digital-watermarking fingerprinting information-security linguistic-steganography metadata plausible-deniability steganography structural-encoding stylometry text-analysis typescript zero-width-characters
Last synced: 09 Apr 2025
https://github.com/3qnrpdwd/longinuspypi
It is a library created to study sessions, tokens, etc. under the https communication protocol. It is incomplete and insecure.
aes cryptography decryption encryption python3 rsa socket socket-io
Last synced: 11 May 2026
https://github.com/dubniczky/trustless-authentication
Secure authentication protocol without sending or storing the password
authentication cryptography password protocol
Last synced: 31 Mar 2025
https://github.com/raffadndm/qbot
Telegram bot in Python
barcode-scanner cryptography python qrcode
Last synced: 05 Sep 2025
https://github.com/qorri-di/convert-tools
Convert Tools for Document, Image, Video and File
and convert cryptography document file for image pdf pdf-converter pdf-document pdf-generation pdf-viewer steganography tools video
Last synced: 20 Mar 2026
https://github.com/counselco/wallet-gui
blockchain cryptocurrency cryptography defi post-quantum rust timelock web3
Last synced: 01 Apr 2026
https://github.com/mthaler/hasher
Command line tool to create a hash from a given text
command-line-tool cryptography golang hash hashing sha1 sha256
Last synced: 09 Apr 2025
https://github.com/ivanstambuk/openauth-sim
Authentication protocol simulator in Java 17 covering OATH HOTP/TOTP/OCRA, FIDO2/WebAuthn, EMV/CAP, and EUDI wallet/OpenID4VP
authentication cap cryptography emv eudi-wallet fido2 java oath ocra otp simulator webauthn
Last synced: 14 Jan 2026
https://github.com/hrvadl/security
Security (cryptography) labs
cipher cryptography encryption encryption-decryption golang rsa security signature
Last synced: 25 Mar 2025
https://github.com/kojibai/receiz_offline_verifier
Public, offline verifier for a receiz.
cryptography deterministic forensics groth16 integrity kai-klok offline offline-proof png receiz sha256 verifier webcrypto zk zk-proofs zk-snarks
Last synced: 10 May 2026
https://github.com/mochafreddo/bcrypt-benchmark
This project is designed to benchmark the performance of bcrypt hashing at different salt rounds. It helps in determining the optimal number of rounds for hashing passwords, balancing security and performance.
authentication bcrypt benchmark cryptography hashing-algorithm nodejs nodejs-security password-hashing performance-testing security
Last synced: 12 Apr 2026
https://github.com/sajad-net/handybar
Base64 encoder and decoder extension
base64 base64-decoding base64-encoding chrome-extension cryptography css html javascript javascript-base64 javascript-cryptography json webbrowser-extension
Last synced: 11 Apr 2026
https://github.com/i2rys/diffiequantum
Diffie Hellman merged with HQC.
cryptography diffie-hellman hqc merge pqc
Last synced: 05 Sep 2025
https://github.com/shanthanu9/cryptopals-solutions
Solutions for Matasano Cryptopals challenges
cryptography cryptopals-challenges
Last synced: 12 Jun 2025
https://github.com/mokkunsuzuki-code/stage355
Stage355: Signature Key Status Verification and Revocation Enforcement Layer with signing-time validity checks, Stage354 ledger binding, fail-closed revoked-key rejection, and PQC intent-only protection.
audit cryptography cybersecurity ed25519 evidence fail-closed gpg key-revocation key-rotation key-status ledger ml-dsa pqc qsp signature-verification sigstore supply-chain-security transparency trust verification
Last synced: 23 Jun 2026
https://github.com/tinyadapter/litecrypt.core
A Simple C# Cryptography Package Based on .NET Core
Last synced: 16 Apr 2026
https://github.com/abhayagiri/raho
Python module for simple symmetric encryption built on cryptography
cryptography fernet python python2 python3
Last synced: 25 Mar 2025
https://github.com/alexyer/xxxdh-js
WASM wrapper around xxxdh library implementing Extended Triple Diffie-Hellman key exchange.
cryptography diffie-hellman key-exchange-protocol
Last synced: 17 Jan 2026
https://github.com/qrichert/jolokia
Simple, strong encryption.
asymmetric-encryption chacha20-poly1305 cli cryptography hpke rust rust-cli symmetric-encryption
Last synced: 03 Mar 2026
https://github.com/kunalpisolkar24/is_lab
Collection of practical codes for Savitribai Phule Pune University's Information Security Laboratory (310258) .
aes-encryption computer-science cryptography cybersecurity des-algorithm diffie-hellman-algorithm information-security java-cryptography md5-hash rsa-algorithm security-lab sppu-computer-engineering
Last synced: 04 Jul 2025
https://github.com/mrdcvlsc/blockciphermodes
A collection of different block cipher modes, designed to facilitate secure data encryption.
block-cipher block-cipher-mode blockcipher blockcipher-mode cbc cfb cplusplus cplusplus-library cplusplus17 cpp cpp-library cpp17 cryptography data-security information-security initialization- iv key library mode-of-encryption
Last synced: 04 Mar 2026
https://github.com/vallshmeleff/radiorandgentwo
A mock-up of a Java application that uses an Internet radio digital stream to encrypt SMS messages with Vernam's code. Works
Last synced: 23 Jun 2026
https://github.com/harmin-parra/x509-wrapper
Wrapper for the pyca/cryptography package to query attributes of X509 cryptographic objects in a fast and simple way
cryptography python python3 x509
Last synced: 12 Jun 2025
https://github.com/mtumilowicz/cryptography-rsa-workshop
asymmetric asymmetric-algorithm asymmetric-cryptography asymmetric-encryption asymmetric-keys asymmetry cryptogra cryptography rsa rsa-algorithm rsa-cryptography rsa-encryption rsa-vulnerability vulnerabilities workshop workshop-materials
Last synced: 10 Jun 2026
https://github.com/krisarmstrong/enigma-v300
> Complete collection of Enigma V300 option key algorithm implementations
c calculator ci-cd cpp cryptography encryption enigma fluke github-actions nettool network-testing option-keys python
Last synced: 04 Mar 2026
https://github.com/ikechukwu-peter/cryptography
A project to demonstrate cryptography
cryptography ejs express expressjs nodejs typescript
Last synced: 12 Apr 2026
https://github.com/bylickilabs/hashforge
Browserbasiertes Sicherheitstool
bcrypt browser-tool cryptography css3 hashforge hashing html5 javascript md5 neon-ui password-generator security-framework sha256 sha3 websecurity
Last synced: 18 Apr 2026
https://github.com/elamani-drawing/morseus
Morseus est une bibliothèque Rust permettant d'encoder et de décoder le texte en code Morse. Elle offre également la possibilité de jouer le code Morse en émettant des signaux sonores à l'aide du dispositif audio par défaut de votre système, ainsi que d'exporter le code Morse en fichiers audio WAV.
audio compression crates-io cryptography encoding morse morse-code rust rust-lang rustlang
Last synced: 02 Apr 2026
https://github.com/midnight-wonderer/embedded-xoodyak
Lightweight, zero-allocation Xoodyak cryptographic scheme in C for microcontrollers.
c-library cortex-m cryptography embedded esp8266 microcontroller xoodoo xoodyak
Last synced: 28 May 2026
https://github.com/epicreach/tkey-web-authentication
Secure Go-based proxy server using TKey hardware for passwordless website authentication.
authentication cryptography daemon go proxy-server security-tools
Last synced: 04 Mar 2026
https://github.com/uofsc-fall-2022-math-587-001/homework5
Diffie-Hellman key exchange and ElGamal cryptosystem. Plus Shanks' algorithm for solving the discrete logarithm problem.
cryptography discrete-logarithm go latex math
Last synced: 12 May 2026
https://github.com/viveksahu26/cobra_cli
chit-chat: send encrypt and decrypt messages in your style
Last synced: 04 Jul 2025
https://github.com/mcp-tool-shop-org/ledger-suite
Unified monorepo for cryptographic provenance ledgers — ClaimLedger and CreatorLedger
append-only cryptography digital-signatures dotnet ed25519 ledger monorepo open-source provenance typescript
Last synced: 01 Apr 2026
https://github.com/viveksyngh/merkletree
Merkle hash tree implementation in golang
cryptography golang merkle-proof merkle-tree
Last synced: 12 May 2026
https://github.com/rlxchap2/cybertools
A web-based cybersecurity toolkit that provides simple, open-source utilities like steganography, hash generators, and encoders/decoders. It’s designed to help users hide, analyze, and process data securely through a clean and accessible interface.
base64 crypto cryptography cybersecurity decryption encryption ethical-hacking ethical-hacking-tools hash hashing hex hex-viewer hexviewer jwt jwt-decode stagnography tools
Last synced: 13 Feb 2026
https://github.com/paulshpilsher/genrsa
RSA keys generator written in Go
cryptography go pem publickey rsa
Last synced: 03 Nov 2025
https://github.com/orientsrocks6n/trading_soft_
The project is aimed at developing an intelligent bot for automated cryptocurrency trading, leveraging advanced machine learning (ML) algorithms and feature engineering. The project offers the following core functionalities
arbitrage bitcoin blockchain btc crypto-arbitrage crypto-trading cryptocurrency cryptography eth ethereum exchange finance finance-trading p2p trade trading trading-automatically usdt
Last synced: 18 May 2026
https://github.com/macornwell/musksultimatemessagesafe
A cryptography puzzle that shares what propels Elon Musk forward.
Last synced: 18 Mar 2025
https://github.com/fzheng/fips-crypto
High-performance post-quantum cryptography for JavaScript and TypeScript, powered by Rust + WebAssembly.
cryptography fips-203 fips-204 fips-205 ml-dsa ml-kem post-quantum slh-dsa
Last synced: 01 Apr 2026
https://github.com/projects-developer/cryptography-project-using-symmetric-algorithm
This project aims to design and implement a secure data encryption system using a symmetric key algorithm. Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials
algorithm btechproject computerscienceproject cryptography decryption-data-security key-exchange mtechproject network-security stream-cipher symmetric-algorithm
Last synced: 05 Mar 2026
https://github.com/5obhan/cs01-image-steganography
Hiding Information Inside an Image using AES-CBC Encryption & Least-Significant-Bit Steganography
aes aes-256 aes-cbc aes-cbc-256 aes-cbc-encryption aes-encryption cryptography cyber-security cybersecurity encrypted-data encryption-decryption image-steganography least-significant-bit lsb-bit-manipulation lsb-steganography steganography
Last synced: 05 Aug 2025
https://github.com/prasunchakra/encipherx
A simple Django-based Caesar Cipher application demonstrating basic text encryption and decryption. Currently for learning fundamental cryptographic concepts, experimenting with shift-based ciphers, and later on building upon for more advanced encryption methods.
cipher cryptography django python
Last synced: 22 Nov 2025
https://github.com/paolino/haskell-mts
Compact Sparse Merkle Tree implementation in Haskell with persistent storage and Merkle proofs
blockchain cryptography data-structures haskell merkle-tree rocksdb
Last synced: 05 Mar 2026
https://github.com/harish-balaji-b/password-manager
In developing a secure client-server model, we implement the Advanced Encryption Standard (AES) and a hashing algorithm from scratch. The AES implementation includes key expansion, key-mixing operations, and secure modes like Cipher Block Chaining (CBC). For hashing, we choose SHA-256 and ensure its resistant to common cryptographic attacks.
aes-encryption cbc cryptography pbkdf2 sha-256
Last synced: 09 Apr 2025
https://github.com/thesupercd/rainbow_table_builder
A high performance CUDA-based GPU accelerated Rainbow-Table maker, written in C++ without any external libraries or dependencies needed.
cpp cryptography cuda hash-table hashing parallel-processing rainbow-table sha3 sha3-512 uuid
Last synced: 12 May 2026
https://github.com/tigeryant/cryptopals-challenges
Solutions to the cryptopals cryptography challenges
coding-challenges cplusplus cryptography cryptopals
Last synced: 16 Jun 2026
https://github.com/enkore/zignify
Re-implementation of OpenBSD signify(1) in Zig (first code in Zig)
crypto cryptography signify zig
Last synced: 25 Mar 2025
https://github.com/mauricelambert/customcrypto
This package implements tools to build your custom cipher
cipher cryptography encryption pypi-package python3
Last synced: 04 Jul 2025
https://github.com/sambhu431/salt-based-encryption-and-decryption
Securely encrypt and decrypt files and folders using salt-based, password-protected methods. Protect your data from hacking, leakage, and theft.
cryptography datasecurity decryption encryption encryption-decryption fernet fernet-cryptography fernet-decryption fernet-encryption fernet-key pbkdf2 pbkdf2-hmac pythonen salt security
Last synced: 09 Apr 2025
https://github.com/oanderoficial/bitcoin-cli-script
Ferramenta em C, que é um utilitário para o bitcoin-cli. Com o Bitcoin-cli Script você terá mais agilidade em obter informações da blockchain utilizando o seu node.
bitcoin bitcoin-cli blockchain blockchain-technology cryptography linux node
Last synced: 17 Apr 2026
https://github.com/nuwax-io/nuwault-web
Advanced keyword-based password generator with client-side security, privacy focus and PWA support
client-side cryptography deterministic hashing offline password-generator password-strength privacy-first pwa security web-crypto
Last synced: 03 Jun 2026
https://github.com/samhaque/hashgame
Fun little hash game to test players information theory skills
bcrypt cryptography flask mongodb python
Last synced: 10 May 2026
https://github.com/waridrox/password-manager
Encrypted password manager to store website passwords.
cryptography password-manager reactjs
Last synced: 17 Apr 2026
https://github.com/simplito/privmx-endpoint-swift-extra
Extension wrapper for PrivMX Endpoint Swift.
communication cryptography data-transfer decryption e2ee end-to-end-encryption files messages messaging privacy privacy-protection private privmx secure simplito storage swift thread zero-knowledge
Last synced: 29 May 2026
https://github.com/hvalfangst/rsa
RSA made from scratch using the underlying mathematical concepts for sake of demonstration
cryptography github-actions python rsa
Last synced: 17 Apr 2026
https://github.com/mimi-netizen/python-scripts
This repository provides a versatile collection of Python scripts to streamline system administration tasks. It includes tools for browser automation, web scraping, and cryptographic operations, with detailed documentation and planned enhancements to expand functionality
cryptography selenium-webdriver webscraping
Last synced: 17 Apr 2026
https://github.com/akagi1/online-bcrypt-generator
Yet another online bcrypt generator.
bcrypt cryptography encryption generator javascript webpack
Last synced: 17 Apr 2026
https://github.com/vedbhanushali/cryptoaes
Cybersecurity Project - Repositry contains [windows and android] application which uses Symmetric - Encryption for encrypting any file
aes-encryption cryptography cybersecurity symmetric-key-cryptography
Last synced: 23 Jun 2026
https://github.com/mw2000/ubt
A reference implementation of a unified binary tree using 32-byte keys and values
cryptography ethereum merkle-tree
Last synced: 04 Apr 2026
https://github.com/vasilievsv/hw.pki-on-box
Educational PKI server on Radxa Zero (Linux) + STM32H750 TRNG via USB HID. SELinux + eBPF isolation. Python daemon. ISO 26262 ASIL A (educational).
buildroot cryptography ebpf embedded-linux iso26262 pki radxa selinux-policy-lang stm32 trng
Last synced: 12 Apr 2026
https://github.com/filiprokita/tosha256
This is a Python script that prompts the user to enter a string of text and then calculates its SHA-256 hash using the hashlib library. The resulting hash is then printed to the console.
cryptography data-integrity hash hashing python security sha256 tosha
Last synced: 24 Mar 2025
https://github.com/xm0onh/stateviz.dev
Interactive visualization playground for blockchain data structures. Learn how blockchains organize and store data through hands-on exploration and visual experimentation.
algorithms blockchain cryptography data-structures educational ethereum merkle-trie playground
Last synced: 12 Apr 2026
https://github.com/albovo/ctf-writeups
Here you can find some of the writeups of the ctfs I've played so far.
cryptography ctf-writeups network-security pwn python reverse-engineering scripting web-security
Last synced: 17 Apr 2026
https://github.com/hashlag/genc
Command line file encryption tool in GoLang
Last synced: 12 Jul 2025
https://github.com/karpeleslab/purecrypto
A pure-Rust, no_std cryptography toolkit: constant-time primitives, classical & post-quantum public-key, X.509, and the TLS/DTLS/QUIC stack — no foreign code, no C dependencies.
constant-time crypto cryptography no-std post-quantum-cryptography pure-rust rust tls x509
Last synced: 04 Jun 2026
https://github.com/sebastiaan-gouman/ceasar_cypher
Simple Ceasar Cypher tool to encrypt, decrypt and brute force Ceasar's Cypher.
Last synced: 23 Mar 2025
https://github.com/aleksbelic/kryptonite-core
TypeScript cryptography library.
caesar-cipher cryptography cryptography-library typescript typescript-library
Last synced: 04 Apr 2026
https://github.com/omarbazaraa/security_rsa
Implementation of the RSA algorithm.
algorithms cryptography decryption encryption number-theory rsa-cryptography security
Last synced: 04 Sep 2025
https://github.com/akshdzn/encore
Encore is a web based tool for obfuscating or scrambling text using a variety of methods. Useful for scavenger hunts, easter eggs, or just fun.
cipher cryptography css html svelte tools vite
Last synced: 18 Apr 2026
https://github.com/goseind/kryptolearn
Krypto Learn - Grundlegende Konzepte der Kryptographie lernen und verstehen
cryptography expo javascript kryptografie react react-native
Last synced: 22 Feb 2026
https://github.com/ocdbytes/secp256k1_bitcoin
This is the cryptography algorithm used in bitcoin to generate public and private keys. Bitcoin uses SECP256k1 C-language library to use this encryption in the Bitcoin operating system.
bitcoin cryptography rsa-cryptography secp256k1
Last synced: 18 Apr 2026
https://github.com/alessiofrittoli/crypto-key
Lightweight TypeScript library for Node.js Cryptographic keys
cipher cripto-keys cryptography hash hmac scrypt
Last synced: 05 Apr 2026
https://github.com/pryority/merkle-next
WIP - I wanted to remake the example website from the Merkletree.js repo in Next.js
cryptography ethereum merkletreejs nextjs react tailwindcss
Last synced: 12 Apr 2026
https://github.com/ph4r05/approximator
Cube attack & algebraic functional approximator. Proof-of-concept for Cube attack on Keccak
algebraic-attack cryptography cube-attack faugere grobner-basis keccak research-project university
Last synced: 15 Mar 2025
https://github.com/kimmy665/cores
🚀 Build modern admin panels easily with CoreS, a responsive template using React, TypeScript, and Tailwind CSS. Perfect for streamlined web applications.
ahb-lite asic-design asp-net-core audio axi4 bitcoin carthage cocoapods coredata cryptocurrency cryptography open-isa open-source-hardware riscv rtl sram usb western-digital
Last synced: 18 Apr 2026
https://github.com/larueli/rsanf05utt
Chiffrement RSA en C dans le cadre d'un cours à l'UTT, école publique d'ingénieurs
c cryptography doxygen mathematics rsa utt
Last synced: 24 Jun 2026
https://github.com/rcmilan/ex-cryptographyapp
Implementando Criptografia em Runtime
cryptography dotnet intermediate-code-generation runtime typeconverter
Last synced: 19 Apr 2026
https://github.com/ahmatfauzy/pengaduan-app
cryptography dekstop-app dotenv-java generic gson i18n java jbcrypt mongodb serialization thread
Last synced: 14 May 2026
https://github.com/jaredliw/sunctf
SunCTF 2024 infrastructure.
competition cryptography ctf forensics hacking information-security osint penetration-testing reverse-engineering security steganography vulnerability
Last synced: 04 Jun 2026
https://github.com/anonputraid/zetcipher
Lightweight and secure text encryption tool built for developers and security enthusiasts.
cryptography data-encryption encryption security
Last synced: 13 Jan 2026
https://github.com/nir3x/cryptorand.cpp
CryptoRand.cpp - Random Key Generation using Cryptographic Techniques
algorithm algorithms c-plus-plus cpp cryptography encryption entropy random random-number-generation security
Last synced: 04 Jun 2026
https://github.com/demining/an-attempt-to-predict-the-behavior-of-the-properties-of-the-secp256k1-elliptic-curve
An attempt to predict the behavior of the properties of the secp256k1 Elliptic Curve: Cryptography and cryptocurrency related parameters secp256k1 reveals several vulnerabilities and potential threats:
ai bitcoin bitcoin-wallet btc cryptocurrency cryptography cryptography-algorithms ecc elliptic-curve elliptic-curve-cryptography elliptic-curves quantum-computing secp256k1 secp256k1-ecdsa
Last synced: 20 Apr 2026
https://github.com/yeshan333/python-cryptography-coding
Classic encryption algorithm: Python implementation
Last synced: 21 Mar 2025
https://github.com/zsoulaimane/blockchain-road
Starting Road
basic bitcoin blockchain cryptography ethereum fullstack fundamentals python roadmap sha256
Last synced: 20 Apr 2026
https://github.com/kharizzakaye/message-encoder-decoder
A Python program that encodes and decodes a message. Built with Tkinter and Python Base64.
base64 cryptography python3 tkinter
Last synced: 10 Mar 2025