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: 2026-06-28 00:06:58 UTC
JSON Representation

https://github.com/trailofbits/rfc8785.py

A pure-Python implementation of RFC8785 (JSON Canonicalization Scheme)

canonicalization cryptography json python serialization

Last synced: 15 Apr 2025

https://github.com/abdellatif-temsamani/cryptjs

`cryptjs` is a JavaScript/TypeScript library that brings cryptographic functionality from Dart to the web

crypt-lib cryptography hash javascript password-hashing security sha-256 sha-512 sha512 typescript

Last synced: 22 Jan 2026

https://github.com/rahmatagungj/toke

TOKE (Two Original Key Encryption) is a security method through encryption of data in the form of numbers and characters, this system uses a mathematical algorithm that can be used to secure certain messages. This service can convert ordinary messages in human language and files into more secure data.

algorithms cryptography decryption encryption

Last synced: 25 Feb 2026

https://github.com/jnm2/threshold

Paper backup requiring a chosen K of N pieces to decrypt. Useful for storing passwords, private keys for PGP or Bitcoin, recovery codes, secret instructions, and small files. Work in progress.

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Last synced: 10 May 2026

https://github.com/thotypous/keccak-bsv

Bluespec SystemVerilog implementation of the Keccak primitive (SHA-3)

bluespec cryptography hardware-designs keccak sha3

Last synced: 19 Mar 2026

https://github.com/jasondrawdy/autoarchiver

An advanced and flexible auto-archiving tool that allows the archiving of both individual files and entire directories using set intervals.

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Last synced: 08 May 2026

https://github.com/ironcorelabs/tenant-security-client-nodejs

NodeJS client library for the IronCore Labs Tenant Security Proxy

application-layer-encryption byok cmk cryptography encryption javascript nodejs typescript

Last synced: 02 Jul 2025

https://github.com/gerhalt/cryptopals

Solutions to Cryptopals challenges in Python 3. Visit https://cryptopals.com/ for the complete list of challenges.

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Last synced: 13 May 2026

https://github.com/schultz-is/go-threefish

An implementation of the Threefish block cipher entirely in go with no external dependencies.

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Last synced: 15 Apr 2026

https://github.com/alaouimehdi1995/encryption-decryption-algorithm

Algorithm that encrypt and decrypt data (text) with algorithm based on random keys

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Last synced: 06 Mar 2025

https://github.com/clach04/jenc-py

Python package for jenc/Markor decryption/encryption

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Last synced: 09 Feb 2026

https://github.com/pavelkryukov/putty-ci

PuTTY with continuous integration

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Last synced: 14 May 2026

https://github.com/mohitrajain/rootctf

CTF ( Capture the flag a cyber security event ) .

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Last synced: 13 Oct 2025

https://github.com/ntdls/talkster

Secure chat instant messaging server and client, offering multi-layered peer-to-peer encryption.

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Last synced: 21 Apr 2026

https://github.com/uncomputable/tackling-bulletproofs

In-depth survey into what Bulletproofs are and how they work

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Last synced: 19 Mar 2026

https://github.com/cizr/hill-adn-cryptography-bridging-classical-ciphers-with-dna-based-encryption

The Hill-ADN Cryptography project combines Hill cipher methods with DNA encryption, offering a novel approach for improved data security. It includes binary to DNA conversion, amino acid translation, and Hill cipher encryption, with the decryption process addressing genetic code ambiguity challenges.

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Last synced: 07 Oct 2025

https://github.com/gunh0/whitebox_cryptanalysis

🔒 Whitebox Cryptographic Code Example

cryptography security wbc

Last synced: 25 Mar 2025

https://github.com/dorssel/dotnet-xmss

.NET 8 implementation of XMSS.

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Last synced: 09 Apr 2025

https://github.com/anuja-rahul/python-datavault

Encrypt and safeguard your valuable data with this python encryption/decryption module.

aes-256 cbc-aes-encryption cryptography fernet-cryptography oops-in-python

Last synced: 19 Jun 2026

https://github.com/i-umairkhan/ecdsa_node

Transactions via ECDSA cryptography algorithm.

cryptography ecdsa-cryptography express javascript nodejs react

Last synced: 14 Apr 2026

https://github.com/luffy0xcyber/cryptographie_classique

Implémentation Python des chiffrements historiques (César, Hill, Vigenère) avec explications détaillées et simples | Projet éducatif de cryptographie

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Last synced: 13 Jun 2025

https://github.com/pandh4cker/encode-decode-morse-code

Encode&Decode Morse Code

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Last synced: 25 May 2026

https://github.com/alokmenghrajani/go-cryptopals

Cryptopals in Golang

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Last synced: 27 Feb 2026

https://github.com/marekyggdrasil/website

Marek Narozniak's personal website with computer science / numerics / quantum physics tutorials.

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Last synced: 18 Mar 2026

https://github.com/daniel-boll/zealot

Be Hideous Before Zeal Cease Zealotry.

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Last synced: 10 Oct 2025

https://github.com/pirate-emperor/cipherx

CipherX is a verification project for Advanced Encryption Standard (AES-128) using Universal Verification Methodology (UVM). It leverages Verilog, SystemVerilog, and Python to ensure robust encryption algorithm validation, integrating comprehensive UVM components and tests.

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Last synced: 26 Jan 2026

https://github.com/tommasoazz/cryptography-notes

Notes for studying, preparing homeworks and exams of the course "Cryptography" of University of Bologna, Master Degree in Computer Science (LM Informatica), A.Y. 2021/2022.

computer-science cryptography notes

Last synced: 11 Feb 2026

https://github.com/cryptpad/blueprints

CryptPad research & development repository

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Last synced: 01 Mar 2026

https://github.com/frankmike/bitcoin-from-scratch

A study on Bitcoin main components

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Last synced: 13 Feb 2026

https://github.com/lucabonamino/crypto-vdf

Cryptocurrency and Cryptographic blockchain Verifiadle Delay Functions project

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Last synced: 27 Dec 2025

https://github.com/ntdls/secure-archive

Secure Archive is a file encryption utility that provides multiple encryption algorithms, variable compression levels, secure file delete, self-extracting archives and more.

cryptography file-management file-system private security showcase

Last synced: 27 Mar 2026

https://github.com/shreyansh26/secure-voting-application

Secure Voting Protocols using RSA

cryptography rsa secure-voting voting-system

Last synced: 22 Jun 2026

https://github.com/glaukiol1/gagchain

Proof-Of-Work blockchain written in Go

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Last synced: 05 Mar 2026

https://github.com/asc8384/neural-distinguishers

Neural Distinguishers on TinyJAMBU-128 and GIFT-64

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Last synced: 07 Apr 2025

https://github.com/seigtm/rsa

A simple C# code that allows you to encrypt and decrypt huge numbers using the RSA algorithm.

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Last synced: 20 Apr 2025

https://github.com/insektdotbin/doxbox

📦 DoxBox will help you learn to make tools for cybersecurity purposes using Python 3.

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Last synced: 28 Feb 2026

https://github.com/cfcs/ocaml-poly1305

MirageOS-friendly bindings to Poly1305 C-stubs from WireGuard

cryptography mirageos ocaml poly1305

Last synced: 17 Apr 2026

https://github.com/nulltea/contangle-zkcp

Universal Zero Knowledge Contingent Payments (on hold)

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Last synced: 19 Apr 2026

https://github.com/just-do-halee/vep

Variable-length Expansion Pass function. ( i.e. short password to long hashed password )

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Last synced: 10 Jun 2025

https://github.com/smaranjitghose/pyconfidentiality

Adding secrecy to your emails with RSA

cryptography email-sender python rsa smtp

Last synced: 03 Sep 2025

https://github.com/harshildarji/locationcrypto

Encryption and Decryption of data using live location of device.

cryptography decryption encryption location position

Last synced: 14 Jan 2026

https://github.com/pauldreik/lemac

C++ implementation of the lemac hash by Augustin Bariant

cryptography hashing

Last synced: 21 Jun 2026

https://github.com/virgilsecurity/virgil-ratchet-x

Virgil Security Ratchet Objective-C/Swift SDK provides an implementation of the Double Ratchet algorithm, which is used by parties to exchange encrypted messages based on a shared secret key.

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Last synced: 14 Jun 2025

https://github.com/darconeous/msecret-rust

Tool for deriving various types of keys from known symmetric secrets.

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Last synced: 19 Jan 2026

https://github.com/dylan-lang/hash-algorithms

Cryptographic hash functions for Dylan

cryptography dylan-lang hash hashing

Last synced: 03 Feb 2026

https://github.com/mewmix/sm4-xts-openssl

openssl sm4-xts & aes-xts 256 implementations for testing

aes-256 c cryptography disk-encryption openssl sm4

Last synced: 07 Jun 2026

https://github.com/dsprenkels/vscode-jasmin

basic syntax highlighting support for the jasmin domain-specific language

cryptography jasmin-lang

Last synced: 19 Mar 2026

https://github.com/chase-moskal/pastesafe

open encryption web app

asymmetric-encryption crypto cryptography

Last synced: 17 Aug 2025

https://github.com/pirate-emperor/enigma

Enigma is a Java-based cryptographic system that integrates symmetric (AES, DES, Blowfish), asymmetric (Diffie-Hellman, RSA, DSA), and hashing algorithms (MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512). It ensures data confidentiality, integrity, and authentication with modern cryptographic standards.

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Last synced: 27 Jan 2026

https://github.com/mjvl/csci-462-tools

Collection of miscellaneous scripts written to help for CSCI-462 - RIT's cryptography course.

cryptography csci-462 diffie-hellman dsa elgamal elgamal-digital-signature rit-cryptography-course rit-csci-462 square-and-multiply

Last synced: 16 Apr 2026

https://github.com/sepandhaghighi/integer-squaring

Integer Squaring Algorithm

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Last synced: 15 Oct 2025

https://github.com/trainingbypackt/advanced-blockchain-development

Build highly secure, decentralized applications and conduct secure transactions

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Last synced: 21 Sep 2025

https://github.com/citp/public-verification

Accountability mechanisms for the Apple PSI system described in Public Verification for Private Hash Matching.

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Last synced: 17 Mar 2025

https://github.com/tuanlh/classical-cipher

Giới thiệu một số loại mã hóa cổ điển và hiện thực bằng javascript

caesar cipher classical cryptography javascript playfair

Last synced: 08 Apr 2025

https://github.com/demindiro/nora_ssh

Pure Rust async library for SSH servers and clients

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Last synced: 01 Apr 2025

https://github.com/mail4metablocks/cryptographic-protocols

zksnarks,zkstarks Cryptographic protocols implementation using Rust

cryptography privacy rust

Last synced: 14 Jan 2026

https://github.com/storopoli/storopoli.com

Personal Website

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Last synced: 10 Apr 2025

https://github.com/gunh0/merkle-tree

🌲 Merkle Tree in Go

cryptography golang hash

Last synced: 07 Jul 2025

https://github.com/bboymega/file2png-web

File2PNG Web Application

cryptography encoding encryption-decryption file fileprocessing front-end php png-decoder png-encoder webapplication website

Last synced: 14 May 2026

https://github.com/kfkrogr/electron-executer

Electron Executor is one of the most favorite Roblox Executors at the moment. Before I tell you how to download Electron Executor, let me tell you that it is currently available safely for Windows. But it is not officially available for Android users as of now but the update is coming and will be launched soon.

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Last synced: 05 Jan 2026

https://github.com/bytemare/hash2curve

Go implementation of RFC 9380 - Hashing to Elliptic Curves

cryptography ecc elliptic-curves go golang hash hash-to-curve rfc9380 secp256k1

Last synced: 10 Apr 2025

https://github.com/shinbatsu/tryhackme-awesome

[👾] TryHackMe / tryhackme -The Comprehensive list of rooms (1000+). Ordered by popularity. Solutions, badges, points.

awesome-list cryptography cyber-security list reverse-engineering tryhackme

Last synced: 07 Sep 2025

https://github.com/aman-17/rabin-cryptosystem

Implementation of Rabin PKC in python

cryptography encryption python rabin-cryptosystem

Last synced: 20 Mar 2025

https://github.com/karthickajan/cipherkit

77 free browser-based developer tools — AES, SHA, JWT, Base64, JSON, Regex, Diff, QR and more. 100% client-side. No login. No tracking.

aes base64 client-side cryptography developer-tools diff-checker hashing javascript json-formatter jwt-decoder no-tracking offline open-source privacy regex rsa utilities web-tools

Last synced: 30 Apr 2026

https://github.com/ahmeddwalid/walid-passanalyzer

A modern, privacy-focused password strength analyzer built with React and TypeScript

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Last synced: 28 Oct 2025

https://github.com/andreacrotti/cyphers

clojure clojurescript cryptography

Last synced: 27 Mar 2025

https://github.com/usbokirishima/pwds

Lightweight GTK4 password manager encrypted with AES-256.

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Last synced: 16 Feb 2026

https://github.com/guilhermeisnotunix/grifforix

Grifforix aims to be a strong and secure password generator made in Java, it uses the Java's *java.security.SecureRandom* library. I have plans to make it also a secure authenticator software in the future. Grifforix is currently experimental in v.0.9.2-alpha.

cryptography password-generator random-number-generators

Last synced: 15 May 2026

https://github.com/belajarqywok/wintrapd

crafting malware, presentation and discussion material for network and computer security courses. [ Group - 2 ]

cmake cryptography llvm-clang malware metasploit-framework win32api

Last synced: 11 Jan 2026

https://github.com/axman6/curve25519

A Pure Haskell implementation of Curve25519

cryptography curve25519 haskell

Last synced: 28 Oct 2025

https://github.com/milliorn/cli-password-generators

Simple command-line applications for generating passwords

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Last synced: 11 Jan 2026

https://github.com/b1f6c1c4/naive-garble

Naïve implementation of garbled circuits.

cryptography garbled-circuits oblivious-transfer secure-computation sfe

Last synced: 03 Apr 2025

https://github.com/kartmaan/filecrypt

Python script to encrypt and decrypt files

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Last synced: 15 Jun 2025

https://github.com/developpeurpascal/swap-keys-generator

A simple generator of reversible bytes lists or arrays in different programming languages for swapping from a byte value to an other.

cryptographic-algorithms cryptography cryptography-tools delphi delphi-app developer-tool developer-tools firemonkey firemonkey-applications

Last synced: 20 Jan 2026

https://github.com/reznik99/go-hsm-doc

A simple CLI Tool to view, inspect and debug PKCS11 compliant Hardware and Software HSMs.

cryptography encryption-decryption golang hardware-security-module hsm pkcs11 pkcs11-tool signing-keys

Last synced: 20 Jan 2026

https://github.com/fionn/cryptopals

Attack at dawn

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Last synced: 02 Mar 2025

https://github.com/ishan-surana/cryptosystems

The 𝚌𝚛𝚢𝚙𝚝𝚘𝚜𝚢𝚜𝚝𝚎𝚖𝚜 package offers a suite of classes and functions for both symmetric and asymmetric encryption, signature-verification, hashing algorithms, key exchange protocols as well as mathematical utility functions. Docs at https://cryptosystems.readthedocs.io.

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Last synced: 09 Jul 2025

https://github.com/encryptex/chainex

A tool to create temporary encrypted messages

base64 cryptography datetime expiration python

Last synced: 02 Mar 2025

https://github.com/pedroalbanese/gostsum

Parallel GOST R 34.11-94 CryptoPro hashsum command

cryptography gost gost94 hashsum

Last synced: 23 Jun 2026

https://github.com/priyanshujain/crypto

A simplified crypto module using go crypto library

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Last synced: 16 Jun 2025

https://github.com/aatxe/hacl-rs

Rusty bindings for HACL*, a formally verified cryptographic library written in F*.

cryptography security verified-primitives

Last synced: 27 Mar 2025

https://github.com/yrotak/d-1

D-1 is an open source symmetric encryption algorithm

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Last synced: 28 Jun 2026

https://github.com/kehiy/go-secp256k1

a bitcoin libsecp256k1 binding for golang. [WIP]

binding bitcoin c cgo cryptography go golang libsecp256k1 nostr

Last synced: 02 Mar 2025

https://github.com/kryptokrona/kryptokrona-wallet-backend-js

Kryptokrona library in JS/TS for building decentralized private communication and payment systems.

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Last synced: 17 Jan 2026

https://github.com/wildonion/wallexerr

RSA (Asymmetric) Crypto Wallet Implementations using ECC Curves

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Last synced: 11 Apr 2025

https://github.com/hushos/hushos

An open source, privacy first, end-to-end encrypted productivity OS!

cryptography encryption end-to-end-encryption nextjs privacy self-hosted typescript

Last synced: 06 Mar 2026

https://github.com/jiahaoxiang2000/milp

learn the Mixed-Integer Linear Programming (MILP) and its application in the optimization of the modeling systemic cipher.

cryptanalysis cryptography milp

Last synced: 17 Sep 2025

https://github.com/mewmix/erc5564py

A python implementation of ERC5564 for Stealth Addresses on Ethereuem as described https://eips.ethereum.org/EIPS/eip-5564

cryptocurrency cryptography ecdsa-cryptography erc5564 ethereum python stealth-addresses

Last synced: 16 May 2026

https://github.com/michaelsproul/antifa

Build a Merkle tree for your files

cryptography filesystem integrity paranoid rust

Last synced: 25 Oct 2025

https://github.com/gusandrioli/small-aes

Simple text and PDF encrypter/hasher CLI application.

aes cryptography golang

Last synced: 15 Jan 2026

https://github.com/alokmenghrajani/five_thousand_needles

Five thousand randomly placed needles

art cryptography hardware-security-module

Last synced: 20 Mar 2025

https://github.com/guilherme-marcello/steganos-bmp

Toolkit to cipher&hide a message in a bitmap image file and recover

assembly-x86 bmp-image cryptography steganography system-call

Last synced: 16 May 2026

https://github.com/eliainnocenti/cryptography-exercises

Exercises for Cryptography Exam @ Polito - Cryptographic primitives in C with OpenSSL and prototype attacks in Python.

asymmetric-cryptography c cryptography ctf digest encryption-decryption offensive-security openssl python rand random-number-generators random-numbers symmetric-cryptography

Last synced: 05 May 2026

https://github.com/vsrc/playground

My personal sandboxed experimenting lab

bitcoin cryptocurrency cryptography golang

Last synced: 16 May 2026

https://github.com/breezy-codes/quantum-cryptography-guide

This project is an exploration into quantum mechanics and quantum cryptography. Understanding the principles and applicaitons of quantum technologies before exploring quantum algorithms for cryptography and their impact on this field. The project includes both explanations and code for learning about the field.

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