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: 2026-06-27 00:06:46 UTC
JSON Representation

https://github.com/noot/go-paillier

implementation of the Paillier cryptosystem

asymmetric-cryptography cryptography homomorphic-encryption paillier paillier-cryptosystem

Last synced: 15 Apr 2026

https://github.com/luqastw/passtw

passtw is a Python-based random password generator + encrypted local vault, using AES‑128 encryption and a cryptographic key.

cli cryptography password password-generator python security security-tools terminal

Last synced: 17 Mar 2026

https://github.com/crocs-muni/eanet

ANN version of EACirc

cryptography keras neural-networks randomness research-tool

Last synced: 31 Jan 2026

https://github.com/godaddy/asherah-ffi

Application-layer envelope encryption with automatic key rotation. Rust core with bindings for Node.js, Python, .NET, Java, Ruby, and Go.

cryptography dotnet encryption envelope-encryption ffi go java key-rotation nodejs python ruby rust security

Last synced: 28 Apr 2026

https://github.com/mokkunsuzuki-code/stage356

Stage356: Runtime Verification and Fail-Closed Execution Gate with Stage355 integrity binding, runtime decision enforcement, CI context detection, and PQC intent-only protection.

audit ci-cd cryptography cybersecurity evidence execution-gate fail-closed github-actions hash-chain integrity key-revocation key-status ml-dsa pqc qsp runtime-verification signature-verification supply-chain-security trust verification

Last synced: 23 Jun 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/c14it0n/torgeforge

🔥 Generador de alto rendimiento de direcciones .onion v3 personalizadas para Tor con interfaz interactiva

cli-tool cryptography ed25519 hidden-service onion privacy rust security tor vanity-address

Last synced: 13 Jun 2026

https://github.com/kseen715/double-ratchet

Implementation of Double Ratchet encryption algorithm

cryptography double-ratchet encryption

Last synced: 30 Jan 2026

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/potreic/write-up-tpw-ctf-2024

CTF walkthrough solutions: web exploits (XXE Injection), binary overflows, cracking ciphers, and detecting in digital forensics. Break challenges & cat data.txt | grep flags! 🎯

binary-exploitation capture-the-flag cryptography cybersecurity digital-forensics web-exploitation

Last synced: 06 Feb 2026

https://github.com/loneicewolf/qubes-pentesting

Research on Qubes security. Includes my Progress on My own Attacks on Qubes as well.

attack cryptography loneicewolf qubes

Last synced: 24 Jan 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/hasnainroopawalla/hashbase

A collection of cryptographic hashing algorithms implemented in Python

cryptography hash-functions hashing hashing-algorithms python

Last synced: 25 Oct 2025

https://github.com/csharper63/server_encryption_file_system

This repository contains a server that use symmetric encryption to encrypt user files/folders and asymmetric encryption to share files/folders among users.

asymmetric-cryptography cryptography end-to-end-encryption symmetric-cryptography

Last synced: 19 Jan 2026

https://github.com/lapets/pailliers

Minimal pure-Python implementation of Paillier's additively homomorphic cryptosystem.

cryptography cryptography-library homomorphic-cryptography-scheme homomorphic-encryption homomorphic-encryption-library paillier paillier-cryptosystem partially-homomorphic

Last synced: 06 Feb 2026

https://github.com/iosialectus/haskellcipherplay

Implementations of RSA, Blum Blum Shub PRNG, affine and polyalphabetic ciphers, and supporting number theory in Haskell.

cryptography functional-programming haskell number-theory prng rsa

Last synced: 02 Apr 2026

https://github.com/mtoohey31/go-evercrypt

A Go wrapper for EverCrypt.

cryptography formal-methods formal-verification go golang hack-star hacl high-performance security verification verified-primitives

Last synced: 17 Oct 2025

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/akagi1/online-bcrypt-generator

Yet another online bcrypt generator.

bcrypt cryptography encryption generator javascript webpack

Last synced: 17 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/clats97/keysense

KeySense: highly secure text encryption. Nothing beats it.

chacha20-poly1305 cipher cipher-algorithms cryptography cryptography-algorithms text-encryption text-encryption-decryption trending trending-repositories

Last synced: 16 Oct 2025

https://github.com/oxarbitrage/sinsemilla

Sinsemilla hash function haskell implementation

crypto cryptography hash-function sinsemilla

Last synced: 05 Feb 2026

https://github.com/kevin-doolaeghe/se2a4_s8_tim

SE2A4 | Semestre n°8 - TP TIM

cryptography school-project

Last synced: 23 Feb 2026

https://github.com/bmoneill/enigma

Enigma machine simulator and Bombe

cipher cli cryptography enigma enigma-machine history

Last synced: 12 Oct 2025

https://github.com/im-a-kookie/cryptographic-aes-server

Simple manual implementation of multithreaded HTTP server via HTTPListenerContext, implementing custom AES virtual streams to provide large files securely.

aes-encryption cryptography http-server multithreaded-server stream-processing

Last synced: 11 Oct 2025

https://github.com/dexcompiler/curves

Elliptic curve operations over finite fields

cryptography csharp elliptic-curve-cryptography finite-fields high-performance prime-numbers

Last synced: 04 Jun 2026

https://github.com/lukechilds/og-zkp

Prove your Bitcoin OG status in zero-knowledge

bitcoin cryptography risc-zero risc0 risc0-zkvm zero-knowledge zkp

Last synced: 08 Jun 2026

https://github.com/projects-developer/top-cryptography-projects-with-source-code

Cryptography is the practice and study of techniques for secure communication by transforming plaintext. Top 10 Cryptography Projects Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

aes-communication-security b-techprojects bca-projects communication computer-science-projects computerscienceprojects cryptography diffie-hellman-key-exchange final-year-projects finalyearprojects gif-malware-project m-techprojects mca-projects steganography super-cipher-projects triple-des-projects

Last synced: 07 Jan 2026

https://github.com/antonio-marasescu/edublock

EduBlock represents a private blockchain platform intended for the sharing of educational records between universities. It was created to serve as my bachelor thesis degree.

angular blockchain cryptography docker expressjs gulp ngrx nodejs rabbitmq redux typedi typeorm typescript

Last synced: 13 Apr 2026

https://github.com/uofsc-fall-2022-math-587-001/homework4

Introduction to the discrete logarithm problem and a comparison of symmetric vs asymmetric ciphers

cryptography discrete-logarithm go latex math

Last synced: 20 Apr 2026

https://github.com/below/cgjprofilelib

The cgjprofile Library

cryptography provisioning-profiles swift swift-package-manager

Last synced: 28 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/abhayagiri/raho

Python module for simple symmetric encryption built on cryptography

cryptography fernet python python2 python3

Last synced: 25 Mar 2025

https://gitlab.com/florent.legname/java-crypto-sandbox

Tests and POCs with standard JDK 18 cryptographic implementations: RSA ciphering and signing, AES encryption etc.

AES cryptography java openjdk rsa

Last synced: 10 Jan 2026

https://github.com/audrastump/gcm-encryption-socket

GCM Socket using AES-GCM encryption with a 256-bit key - ensures confidentiality and integrity of data

cryptography cybersecurity encryption-decryption

Last synced: 12 May 2026

https://github.com/super-e/slip39dotnet

Complete .NET implementation of SLIP-0039 Shamir's Secret Sharing with BIP32 support

bip32 bitcoin cryptocurrency cryptography csharp dotnet mnemonic secret-sharing shamir-secret-sharing slip-0039 vibe-coding

Last synced: 13 Apr 2026

https://github.com/duguorong009/md6-impl

MD6 hash implemented in Rustlang

cryptography hash md6 rust-lang

Last synced: 25 May 2026

https://github.com/mberry/makwa-sharp

C# implementation of the Makwa password hashing algorithm

cryptography hashing passwords

Last synced: 25 Mar 2025

https://github.com/francislauriano/chatsoftex

Plataforma desenvolvida em Python que visa automatizar e agilizar o processo de avaliação de projetos de inovação tecnológica, utilizando inteligência artificial e critérios padronizados com base na Lei do Bem.

cryptography fernet firebase flask flask-jwt-extended hugging-face-transformers numpy openai pdfplumber postgresql pyjwt pymupdf-fitz pypdf2 python pytorch scikit-learn scipy spacy sqlalchemy tensorflow

Last synced: 03 Apr 2026

https://github.com/thor314/cryptography

cryptographic projects I've worked on

cryptography

Last synced: 12 Jan 2026

https://github.com/jordanbaird/hashgenerator

Generate hash digests using commonly available hash algorithms

cryptography generate hash hashgenerator hashing md5 sha sha1 sha256 sha384 sha512 swift

Last synced: 23 Oct 2025

https://github.com/massivefermion/erl_argon2

nifs for hashing and verifying passwords using argon2

argon2 argon2i argon2id crypto cryptography elixir erlang hash hashing nif password password-hash password-hashing rust

Last synced: 13 Apr 2026

https://github.com/mvharsh/information-security

A comprehensive collection of cryptography and cybersecurity algorithms including encryption, hashing, and common attack techniques.

cryptography cybersecurity encryption-algorithms ethical-hacking information-security network-security

Last synced: 14 Jun 2025

https://github.com/elfincafe/anngo

Ann*Go is the cryptography tool written in Go language.

cryptography go

Last synced: 12 Mar 2026

https://github.com/typicalhog/randevu-ts

Universal Probabilistic Daily Reminder Coordination System for Anything

algorithms blake3 coordination cryptography daily datetime deterministic foss hash offline probability randevu random rdv rdvt reminders rendezvous ts typescript universal

Last synced: 19 Feb 2026

https://github.com/dhruvsrikanth/communication-and-encryption-between-different-networks

A project a classmate and I undertook to better understand and develop end-to-end encryption between a client and server on a vulnerable network!

computer-networks cryptography decryption encryption end-to-end-encryption networks python

Last synced: 23 Apr 2025

https://github.com/makarov-danil-school-projects-ctu/cryptography-image-encryption-decryption

algorithms cpp cryptography openssl

Last synced: 17 Mar 2025

https://github.com/anivanchen/pycrypt

A series of standalone scripts built with Cryptography for encryption and decryption of files / strings.

cryptography python

Last synced: 11 Jun 2026

https://github.com/wzyskq/polybius_square_pro

An improved encryption and decryption system from the Polybius Square.

cryptography

Last synced: 14 Jan 2026

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/rbourgeat/miniblockchain

🔗 A simple Blockchain

blockchain c-plus-plus cryptography

Last synced: 08 Apr 2025

https://github.com/losthopes/secured-accounts-lab

Lab for Security of programs and Data course

auth cryptography labs

Last synced: 14 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/jhartyharr23/fors33-verifier

Cryptographic verifier for high-integrity data. Prove provenance and ensure immutable audit trails. Automate at fors33.com/products

audit-trail chain-of-custody compliance cryptographic-attestation cryptography cybersecurity cybersecurity-tools data-integrity data-lineage data-protection data-provenance digital-forensics evidence-management forensics immutable-ledger python security-tools sha256 tamper-evident zero-trust

Last synced: 01 Mar 2026

https://github.com/scttnlsn/cryptopals

Cryptopals in Rust

cryptography cryptopals

Last synced: 07 Apr 2025

https://github.com/kevincharm/gfc-fpe

Generalised Feistel cipher for stateless shuffling

cryptography feistel fpe shuffle

Last synced: 07 Sep 2025

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/hemanthh17/da2-cryptography-vit

Blum Blum Shub and RC4 Python Scripts. Blum Blum Shub is a PRF which is responsible to generate random numbers. RC4 is a stream cipher encryption algorithm.

cryptography python3 random-number-generators stream-cipher

Last synced: 15 Mar 2025

https://github.com/jkcso/enigma

Command line tool for the coding machine used by German forces in the Second World War. Simulates 2 machines set up in the same way allowed the sending of messages securely between their users. My code can be used to encrypt (or decrypt) messages provided on the standard input stream, outputting the encrypted (or decrypted) messages on the standard output stream.

cryptography history-of-computing

Last synced: 14 Mar 2025

https://github.com/r1b/md5

[WIP] The MD5 Message-Digest Algorithm

cryptography r6rs racket scheme

Last synced: 21 Jan 2026

https://github.com/malisha4065/javap2pfiletransfer

Java P2P Secure File Transfer

cryptography java p2p

Last synced: 09 Jun 2026

https://github.com/eiblybrasil/php-crypt

A simple php class for encryption.

class cryptography php php72 php73 php74 php80 php81

Last synced: 05 Feb 2026

https://github.com/diegodromer/guardara

Guardara – Seu cofre digital inteligente. De senhas “fortinhas” a criptografia de dar inveja a espião da CIA. 🔐

cloud-security cryptography dart encryption firebase flutter hive mobile mobile-app mvvm open-source password-generator password-manager secure-storage tfa two-factor-authentication

Last synced: 01 May 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/ikechukwu-peter/cryptography

A project to demonstrate cryptography

cryptography ejs express expressjs nodejs typescript

Last synced: 12 Apr 2026

https://github.com/twilight-dream-of-magic/fastfireblockcipher-mysticalascon

FastFire: An Enhanced Version of ASCON Algorithm with Custom Round Constants and Substitution-box with custom nonlinear functions, Linear Permutation

ascon block-cipher cryptography fastfire sponge-functions

Last synced: 01 Mar 2025

https://github.com/aniketc068/atick-python

Standalone Python library for PDF digital signatures — PAdES/CMS, USB tokens, Windows store, Indian eSign, timestamps, LTV and a green-tick appearance Adobe shows as valid. Zero dependencies.

adobe cades cryptography digital-signature esign ltv pades pdf pdf-signature pkcs11 python sign-pdf timestamp

Last synced: 16 Jun 2026

https://github.com/bmwant/ecc

Elliptic Curve Cryptography algorithms

calculus cryptanalysis cryptography

Last synced: 17 Mar 2025

https://github.com/dhcgn/crypto

Wrapper of secure encryption implementation to simplify the usage.

cryptography encryption go golang

Last synced: 17 Mar 2025

https://github.com/viveksahu26/cobra_cli

chit-chat: send encrypt and decrypt messages in your style

cobra-cli cryptography go

Last synced: 04 Jul 2025

https://github.com/arthurosipyan/learning-blockchain

Repository for blockchain learning material.

beginner beginner-code beginner-friendly beginners beginners-guide blockchain blockchain-demos blockchain-technology crypto cryptocurrency cryptography solidity solidity-contracts

Last synced: 25 Apr 2026

https://github.com/phenomsg/password-manager

It is a Python password manager using Fernet encryption. It securely stores and manages passwords, ensuring confidentiality and convenience for users.

cryptography decryption encryption fernet python

Last synced: 28 Dec 2025

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/peterfritz/time

Get the current time, timezone, and a language-sensitive representation of the current time in the local timezone based on the user's IP. Create and validate signed date tokens.

cryptography date time

Last synced: 12 Jun 2025

https://github.com/archisman-mridha/mathematics-notes

My hand-written notes on different mathematical topics (like Abstract Algebra, Complex Analysis, Algebraic Geomery etc.)

abstract-algebra algebraic-geometry complex-analysis cryptography elliptic-curve-cryptography elliptic-curves plonk riemann-hypothesis zero-knowledge-proofs zksnarks zkstarks

Last synced: 10 Mar 2026

https://github.com/nullisxyz/keycard

Blazing-fast Keycard SDK and CLI in Rust

cryptography ethereum keycard rust smartcard

Last synced: 15 May 2025

https://github.com/lukman-01/alchemy-eth-bootcamp-projects

Alchemy-Eth-Bootcamp documentation of learning and developing blockchain technology from scratch using JavaScript, Blockchain cryptography and storage,Solidity, Etherjs, Hardhat and indept smart contract writing.

blockchain cryptography erc20 ethereum etherjs evm hardhat javascript nfts smart-contracts solidity

Last synced: 11 Apr 2026

https://github.com/leotot4/zyra-crypto-wallet-mnemonic-seed-phrase-balance-checker

This repository features Zyra, a crypto wallet tool that includes functionality for checking balances using mnemonic seed phrases. It allows you to securely manage and verify cryptocurrency balances associated with various wallets.

balance balance-checker bip39 bitecoin blockchain crypto crypto-wallet cryptography ethereum hardware-wallet mnemonic mnemonic-phrase seed wallet

Last synced: 25 Mar 2025

https://github.com/akhuntsaria/online-bcrypt-generator

Yet another online bcrypt generator.

bcrypt cryptography encryption generator javascript webpack

Last synced: 17 Jan 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/praths71018/django_and_rest_framework_fundamentals_hospitalmanagement

A comprehensive Hospital Management System which is built using Django and Django Rest Framework

api-rest apm authentication authorization bitbucket cryptography django django-celery django-celery-beat django-rest-framework django-signals encryption-decryption middlware mysql newrelic redis unit-testing

Last synced: 13 Apr 2026

https://github.com/yaon-c2h8n2/krypton

Projet réalisé dans le cadre de l'UE Codages & Cryptographie en M1 à l'Université de Bourgogne

cryptography data-compression-algorithms data-encoding

Last synced: 05 Oct 2025

https://github.com/purarue/plus1

A symmetric substitution cipher used to obfuscate code that I'd rather not be indexed.

cipher cryptography

Last synced: 30 Mar 2025

https://github.com/loneicewolf/py-snippets

Useful snippets in Python3 (mainly Jupyter)

cipher ciphers cryptography decryption encryption python3 snippets

Last synced: 15 May 2025

https://github.com/soumabha-banerjee/enigmaticbyte

This is a steganography desktop application that hides txt messages inside a cover image. It is completely developed using JavaFX and Cryptography and Steganography both is used. For Cryptography we used a symmetric key technique called Columnar Transposition and for Steganography we used LSB Insertion technique.

cryptography cryptography-algorithms desktop-application java javafx javafx-desktop-apps network-security steganography steganography-algorithms

Last synced: 14 Feb 2026

https://github.com/rudrowo/aes-cpp

cryptography

Last synced: 06 Oct 2025

https://github.com/dpetrosy/encryptor-decryptor

My small project encryptor / decryptor written in Python.

algorithm console-application cryptography decoder encoder encoder-decoder encryption-decryption python python3

Last synced: 06 Oct 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/alex-snd/vigener

🔓 The project is intended for convenient key recovery from the ciphertext obtained using the Vigenère cipher.

cryptography

Last synced: 29 May 2026

https://github.com/pmarreck/blip_mp

BLIP-storage arbitrary-precision integers in pure Zig. Beats GMP at i64 (1.95-2.66×) and common cryptographic mul (1.12-1.46×) on Apple Silicon. 8240 GMP cross-validation tests pass.

arbitrary-precision-integers bignum blip cryptography ffi gmp multi-precision zig

Last synced: 31 May 2026

https://github.com/aead/poly

Package poly implements message authenticators based on polynomials

cryptography gcm golang poly1305

Last synced: 19 May 2026

https://github.com/ohimoiza1205/goldman-sachs-forage-swe-simulation

Crack passwords and suggest security improvements as a Governance Analyst at Goldman Sachs.

cryptography goldman-sachs hashcat password-cracking software-engineering

Last synced: 17 Jan 2026

https://github.com/andrenevesgomes/criptografia

No âmbito da disciplina de Criptografia foi-nos requisitado a realização de um trabalho de grupo centrado na realização de um algoritmo de encriptação de forma a refletir todo o conhecimento adquirido ao longo das aulas realizadas.

cryptography istec school-project scytale-cipher

Last synced: 09 Mar 2025

https://github.com/simplito/privmx-bridge-docker

Docker Compose for PrivMX Bridge.

chat communication cryptography data-transfer decryption e2ee end-to-end-encryption files messages messaging privacy privacy-protection private privmx secure security simplito storage thread zero-knowledge

Last synced: 06 Oct 2025

https://github.com/danielost/ecpoint-wrappers

Convenient wrappers for operations on elliptic curves in Golang.

cryptography ecc elliptic-curves

Last synced: 06 Oct 2025

https://github.com/ujangbedog/dpq-chat

A simple, secure peer-to-peer chat app built with Rust. Runs directly in the terminal with end-to-end encryption, post-quantum security (Kyber & Dilithium), and no central server.

chat cli cryptography p2p p2p-chat rust secure terminal terminal-app terminal-chat