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/arunanshub/webbin

WebBin: The Based Pastebin

compression cryptography flask pastebin security sqlalchemy

Last synced: 11 Feb 2026

https://github.com/nanda-gopal-sb/password_manager

A Password Manager in mordern C++.

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Last synced: 03 Apr 2025

https://github.com/waddaboo/rust-vss

A secure and versatile Verifiable Secret Sharing (VSS) library for Rust

cryptography rust verifiable-secret-sharing zero-knowledge-proofs

Last synced: 23 Mar 2025

https://github.com/rasmus-kirk/halo-accumulation

A rust implementation of the Halo2 accumulation scheme from the paper "Proof-Carrying Data from Accumulation Schemes"

accumulation-schemes blockchain crypto cryptocurrency cryptography halo2 rust

Last synced: 01 Apr 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/bytedev/bytedev.crypto

Provides simple cryptographic related classes for hashing/verifying data, encrypting/decrypting data and creating random data in .NET.

crypto cryptography csharp encrypting hashing random

Last synced: 01 Jul 2025

https://github.com/tuokri/unrealscript-fcrypto

Pure UnrealScript SSL/TLS implementation and cryptography utilities based on BearSSL. Work in progress.

bearssl block-cipher cryptography decryption ecdh ecdhe encryption hkdf hmac https-client sha-1 udk ue3 unreal-engine-3 unrealscript xxtea

Last synced: 19 Mar 2026

https://github.com/wilmerm/cryptshield

Secure Encryption and Deletion Application

bash-script borrado-seguro cifrado command-line cryptography decrypt decryption descifrado encrypt encryption encryption-decryption fernet linux python3 secure-delete securedelete shred

Last synced: 24 Aug 2025

https://github.com/miraclx/xstrip-auth

Cryptographically strong pseudorandom key generator based on the `XStrip Algorithm`

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Last synced: 28 May 2026

https://github.com/tbarrella/crypto-pure

Pure-Rust cryptography library

cryptography rust

Last synced: 11 Jun 2026

https://github.com/hk-transfield/python-quantum-key-exchange-simulator

A simple program to simulate a Quantum Key Exchange (QKE) algorithm, written in Python3.

cryptography encryption python python3 quantum-computing quantum-key-distribution symmetric-cryptography symmetric-encryption symmetric-key-cryptography xor-cipher xor-encryption

Last synced: 01 Apr 2025

https://github.com/guppster/ark-nim

A Nim library simplifying connection to the ARK blockchain

blockchain cryptography nim

Last synced: 25 May 2026

https://github.com/drimiteros/secret_scribble_v1.0-open

An offline password manager with a graphical user interface

authentication cryptography encryption open-source password-manager privacy security security-tools

Last synced: 11 Feb 2026

https://github.com/alexruzin/cryptog

A cryptographic wrapper library for the Go programming language

aes-encryption cryptography rsa-encryption

Last synced: 21 Nov 2025

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/onlycodergod/crypto-beta

🛡learn and watch how crypto work in Go

const crypto cryptography golang-library hash key privatekey sha

Last synced: 12 Jan 2026

https://github.com/wangray/matasano-crypto

Matasano Crypto Challenges in python

cryptography

Last synced: 03 Jul 2025

https://github.com/sean9999/go-oracle

A package that provides basic high-level cryptographic functions using Curve25519

awesome cli cryptography go

Last synced: 14 Jan 2026

https://github.com/elamani-drawing/huffmanrs

Huffmanrs est une bibliothèque Rust permettant d'encoder et de décoder du texte en utilisant le codage de Huffman.

compression crates-io cryptography encodage encoding huffman huffman-coding huffman-compression-algorithm rust rust-lang

Last synced: 07 Oct 2025

https://github.com/mostafa-wael/number-theory-and-cryptography-rsa

The RSA assignment from Coursera course "Number Theory and Cryptography"

coursera cryptography rsa

Last synced: 16 Mar 2025

https://github.com/marichu-kt/chacha20-poly1305-x25519

Esto es una app cliente-servidor en C++ que cifra mensajes con ChaCha20-Poly1305 y usa X25519 para el intercambio seguro de claves. Soporta comunicación bidireccional por TCP y configuración vía XML.

asymmetric-encryption c-plus-plus chacha20-poly1305 client-server cpp cryptography curve25519 end-to-end-encryption multi-threading network-security openssl secure-chat secure-communication secure-messaging tcp-sockets x25519 xml-configuration

Last synced: 23 Apr 2025

https://github.com/machu-gwu/windtalker-project

Encrypt and decrypt text, binaries, files, and directories with a variety of cipher options.

cryptography encryption python tool

Last synced: 13 Feb 2026

https://github.com/abdulahshoaib/passcrypt

Open source password manager

cryptography go golang security-tools

Last synced: 29 May 2026

https://github.com/interkosmos/lucifer

Lucifer block cipher in FORTRAN 77

cipher cryptography des encryption fortran fortran-77 lucifer

Last synced: 13 Feb 2026

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.

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Last synced: 14 May 2026

https://github.com/ardatetikbey/ruby-kriptografi-101

Ruby programlama dilinde şifreleme hakkında doküman

cryptography ruby sifreleme

Last synced: 06 Jul 2025

https://github.com/mkontani/cert-tool-extension

chrome-extension cryptography

Last synced: 07 Feb 2026

https://github.com/talha-1010/des-algorithm

A symmetric-key algorithm for the encryption of digital data.

cpp cryptography datastructures des-algorithm encryption-decryption template-specialisations

Last synced: 18 Oct 2025

https://github.com/sayalisachin/medicrypt

This is a Hospital Communication System Using DNA Encryption and Image Steganography This project enables secure communication between two hospitals, Hospital A and Hospital B, by encrypting and hiding sensitive patient data within images using DNA encryption and Least Significant Bit (LSB) steganography techniques, powered by Socket.IO

cryptography dna dna-sequencing information informationsecurity lsb lsb-steganography manipal-institute-of-technology matplotlib pandas pillow security socket-io steganography streamlit websocket

Last synced: 13 Apr 2026

https://github.com/pushpendra-1697/wedsurf

This React onboarding project includes pages for login, signup, home, and profile functionalities, catering to user authentication and navigation, facilitating a seamless design experience. The user will be blocked for the next 24 hours after putting 5 times wrong password at the time of token-based login.

axios bcrypt chakra-ui cryptography expressjs jsonwebtoken jwt-decode mongodb mongoose nodejs otp-authentication react-components react-hooks react-icons react-router-dom react-slideshow-image reactjs responsive-design token-based-authentication twilio

Last synced: 02 Apr 2026

https://github.com/trashhalo/saltpack

node wrapper of saltpack library

cryptography keybase saltpack

Last synced: 11 Jan 2026

https://github.com/alvarogzp/poodle-challenge

Cryptographic challenge

challenge cryptography man-in-the-middle mitm poodle python ssl-handshake sslv3

Last synced: 13 Jun 2026

https://github.com/breezy-codes/cryptography-projects

A fun little collection of different cryptographic algorithms I've learned about. This is developed purely for fun, please don't use them for actual encryption.

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Last synced: 25 Mar 2025

https://github.com/hussamsh/nova-cpp

C++ implementation of Nova

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Last synced: 25 Apr 2025

https://github.com/arindal1/morsecode-translator

A Morse-Code Generating web-app based on JavaScript.

cryptography development front-end javascript morse-code webapp

Last synced: 09 Apr 2025

https://github.com/syedzawwarahmed/encryption-algorithms

A collection of encryption algorithms implemented in Rust.

cryptography encryption rust

Last synced: 28 Feb 2025

https://github.com/suvasish114/non-adaptive-partial-image-encryption

An image encryption project, proposed by Barrackpore Rastraguru Surendranath College's department of computer science undergraduates under Dr. Sukalyan Som's mentorship on adaptive partial image encryption of grayscale image based on chaos.

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Last synced: 13 Apr 2026

https://github.com/edgarogh/camerash

Little educational app to create entropy/randomness from a video input

android cryptography educational hash random

Last synced: 07 Jan 2026

https://github.com/amr-yasser226/datagovernanceworkflow

Comprehensive data governance pipeline for SSH honeypot logs—covering data profiling, cleansing, quality assurance, encryption, classification, and GDPR/CCPA/HIPAA compliance. Built with Pandas, Pandera, YData Profiling, and cryptography, with simulated Caesar cipher attacks to demonstrate practical data-security techniques.

caesar-cipher ccpa cryptography cybersecurity data-cleaning data-encryption data-governance data-profiling data-quality data-validation data-visualization gdpr hipaa honeypot-analysis open-source pandas privacy-compliance python ssh-logs

Last synced: 05 Feb 2026

https://github.com/daisvke/ft_otp

This program allows you to securely store an initial password in an encrypted file and generate a new TOTP (Time-based One-Time Password) every time it is requested. It provides both a CLI and a GUI version.

cpp cryptography ecole42 ft-otp otp-generator qrcode-generator qt security totp totp-generator

Last synced: 28 Feb 2025

https://github.com/ahmed-naserelden/cryptographic-algorithms

The "Cryptographic Algorithms Implementation in C#" project is a comprehensive repository that provides implementations of various cryptographic algorithms, designed to enhance data security. Each algorithm is meticulously crafted in C# and thoroughly documented within the codebase, enabling easy understanding and usage.

cryptoanalysis cryptoanalysis-algorithms cryptography network-security security

Last synced: 07 Oct 2025

https://github.com/gers2017/cerberus

Cerberus, guardian of the underworld. A Python CLI tool to cipher your data

cesar-cypher cli cryptography cypher developer-tools python

Last synced: 11 Mar 2025

https://github.com/mrdecryptdecipher/pow-based-blockchain

A SIMPLE PROOF OF WORK BASED BLOCKCHAIN WHICH USES HASHING FEATURE TO HASH INPUT, IT ALSO HAS A GENESIS BLOCK AND OTHER NECESSARY FILES TO CREATE POW ALGORITHM

bitcoin blockchain blockchain-technology consensus-algorithm cryptography decentralized dlt proof-of-work

Last synced: 12 Mar 2026

https://github.com/tsmx/string-crypto

Easy encryption and decryption for strings in NodeJS.

aes cipheriv crypto cryptography encryption string

Last synced: 22 Feb 2026

https://github.com/bklockly/shadowmeld

🕶️ 隐蔽Shellcode嵌入与反检测加载器生成框架 / Stealthy Payload Delivery Framework with Anti-EDR Capabilities

bypass-antivirus bypass-av cipher cryptography hacking hide-files image-steganography lsb-steganography security shellcode shellcode-loader

Last synced: 16 Mar 2025

https://github.com/samuel-lucas6/ascon.net

A .NET implementation of the Ascon cipher suite.

aead ascon ascon-128 ascon-128a ascon-80pq ascon-hash ascon-hasha ascon-mac ascon-prf ascon-prfs ascon-xof ascon-xofa crypto cryptography hash message-authentication-code nist nist-lwc prf xof

Last synced: 27 Mar 2025

https://github.com/notstatilko/uiscrypt

Make strength passwords with uiScrypt!

cryptography password-generator password-manager scrypt scrypt-algorithm urlsafe-base64

Last synced: 15 Feb 2026

https://github.com/awais922609/cyber-security-interview-question-answers

Welcome to the Cybersecurity Questions and Answers Repository! This project aims to create a comprehensive collection of questions and answers related to various cybersecurity topics. Whether you’re a beginner looking to learn or a seasoned professional wanting to share your knowledge, this repo is the perfect place for you.

cryptography cybersecurity grc network-engineer networking penetration-testing security-engineering security-operations-center

Last synced: 08 Jan 2026

https://github.com/victor-0x29a/basethor

Simple cryptography based in to Base64.

cryptography java

Last synced: 16 Mar 2025

https://github.com/bok1c4/PGPKeyTypeDetector

This includes RSA and ECC cryptographic algorithms

cryptography go pgp

Last synced: 25 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/tdjsnelling/garbled-circuits

Yao’s Garbled Circuits in TypeScript

cryptography garbled-circuits javascript mpc multiparty-computation nodejs oblivious-transfer typescript verilog

Last synced: 12 Apr 2026

https://github.com/dipanshkhandelwal/manytimepad

A solution to many time pad attack https://manytimepad.js.org/

cryptography encryption manytimepad onetimepad

Last synced: 15 Feb 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/bitcoinluminary/bitcoinluminary

Official Bitcoin Luminary Repository

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Last synced: 23 Jan 2026

https://github.com/alichtman/decodecaesar

Intelligent Caesar-Cipher Cracking

caesar-cipher cryptography decryption frequency-analysis

Last synced: 07 Apr 2025

https://github.com/disalad/caesar-cipher

📜 A tool to encrypt, decrypt & crack texts with a substitution cipher

caesar-cipher caesar-cipher-cli caesar-cipher-python cli cryptography substitution-cipher symetric-key

Last synced: 06 Apr 2025

https://github.com/embetrix/pycrypto-helper

python crypto operations helper

cryptography encryption-decryption pkcs11 python3 signature

Last synced: 01 Mar 2026

https://github.com/jgperrin/net.jgp.commons.crypto

cryptography java

Last synced: 03 Jul 2025

https://github.com/cmyers/json-record

A lightweight, zero-dependency library for creating deterministic, tamper-evident append-only logs.

cryptography hashchain integrity json ledger

Last synced: 03 Feb 2026

https://github.com/dilbwagsingh/electronic-voting

A simple yet secure online voting app

cryptography expressjs mongo nodejs reactjs

Last synced: 16 Jan 2026

https://github.com/insipx/rsa

RSA Algorithm Implemented in Rust

crypto-class cryptography demonstration example rsa university university-assignment

Last synced: 15 May 2025

https://github.com/nemanjapetrovic/cryptography-course-elfak

Cryptography course @ Faculty of Electronic Engineering, University of Niš, Serbia

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Last synced: 16 Apr 2026

https://github.com/irby/secrets-sharing-tool

A C#/.NET Core API and Angular client application designed to help users securely distribute short-session one-time secrets.

cryptography security

Last synced: 21 Apr 2026

https://github.com/konfigyr/konfigyr-crypto

Spring Boot Crypto library

crypto cryptography java key-management spring-boot tink

Last synced: 30 May 2026

https://github.com/bok1c4/pgpkeytypedetector

This includes RSA and ECC cryptographic algorithms

cryptography go pgp

Last synced: 08 Oct 2025

https://github.com/h0llyw00dzz/csr-generator

The CSR Generator is a Go package that provides functionality for generating Certificate Signing Requests (CSRs) and private keys. It simplifies the process of creating CSRs with specified common names and Subject Alternative Names (SANs).

cryptography go idiomatic-go pki-tools pkix security-tools ssl-certificates

Last synced: 02 Sep 2025

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/tmc/cryptopals

hack the planet

cryptography golang

Last synced: 07 Sep 2025

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/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/erthium/diary-a

A simple logbook for Linux machines

cpp cpp17 cryptography diary gcc linux linux-installation logbook makefile openssl qt qt6 rsa

Last synced: 13 Apr 2026

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/dhouib-mohamed/secure-network-authentication

Secure Network Authentication project focuses on establishing robust authentication and network services using OpenLDAP, SSH, Apache, OpenVPN, DNS, and Kerberos.

apache authentication cryptography dns infrastructure kerberos network-management network-security openldap openvpn ssh

Last synced: 18 May 2026

https://github.com/botsuniverse/cryptrooper

Cryptrooper is a module that can encode and decode your text with a given key.

crypt cryptography decode encode python python3

Last synced: 29 Mar 2025

https://github.com/petrknap/php-crypto-sodium

The library that packages functional `sodium_crypt_*` into objects.

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Last synced: 10 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/iscc/iscc-crypto

ISCC Signing & Verification

content-identification cryptography eddsa iscc timestamping

Last synced: 09 Apr 2026

https://github.com/radlikewhoa/supernatural

Substitution Permutation Network exercise for the Cryptography and Security module (krysi) at the FHNW.

cryptography java spn

Last synced: 26 Jun 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）

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Last synced: 22 Oct 2025

https://github.com/joshmcguigan/cryptopals

Rust implementation of the cryptopals crypto challenges

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Last synced: 02 Jul 2025

https://github.com/mrdcvlsc/bytepadding

A collection of different byte padding methods

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Last synced: 18 Jul 2025

https://github.com/deovaliandro/des

Simple implementation of Data Encryption Standard

cryptography des symetric-key

Last synced: 13 Apr 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