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: 2026-06-23 00:06:53 UTC
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https://github.com/ali2210/wizdwarf

(:tada:) WzDwarf is a decentralized molecular application interface

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Last synced: 11 Sep 2025

https://github.com/datumbox/vernamveil

VernamVeil: A Function-Based Stream Cypher

blake3 cryptography python

Last synced: 25 Jun 2025

https://github.com/cyrildever/crumbl-hoster

Easy hosting server for the Crumbl platform

cryptography data-masking javascript-library signing-trusted storage-api typescript-library

Last synced: 10 Apr 2025

https://github.com/jpvitan/marsa

A Python library that lets you experiment with the mathematics of the Rivest–Shamir–Adleman (RSA) cryptosystem.

cryptography number-theory pypi python rsa

Last synced: 07 Apr 2026

https://github.com/arda-guler/bingallery

Encode your files into RGB images and decode them back.

command-line-tool cryptography decoder decoding encoder encoding proof-of-concept

Last synced: 14 Sep 2025

https://github.com/manelli/ex_bcrypt

Elixir wrapper for the OpenBSD bcrypt password hashing algorithm

bcrypt cryptography elixir password security

Last synced: 20 Jun 2025

https://github.com/haizzz/lockbox

Double click to encrypt / decrypt a folder

cryptography encryption hacktoberfest python python3

Last synced: 06 Apr 2025

https://github.com/tynes/nameswaps

Decentralized Exchange Infrastructure for Handshake Names

bitcoin blockchain cryptocurrency cryptography handshake peer-to-peer

Last synced: 29 Apr 2026

https://github.com/actuallyachraf/algebra

A literate :pencil: implementation of algebraic primitives for cryptography and algebraic applications :alembic:

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Last synced: 02 Feb 2026

https://github.com/sfuhrm/saphir-hash

Cryptographic message digest algorithms as a Java library with standard JCA adapters

crypto crypto-library cryptography cryptography-library cryptohash digest hash hashing hashing-algorithms java library md5 messagedigest ripemd160 sha1 sha2 sha256 tiger

Last synced: 05 Oct 2025

https://github.com/monich/foil

glib-style crypto

aes cryptography des-cipher encryption glib rsa security

Last synced: 21 May 2026

https://github.com/michel-leonard/c-rho

The Pollard's Rho algorithm for 64/128 bits Integer Factorization in pure C.

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Last synced: 20 Sep 2025

https://github.com/vschwaberow/npwg

A Secure Password Generator Written in Rust

cryptography first-timers password password-generator security security-tools

Last synced: 03 Jan 2026

https://github.com/10d9e/vhe

Verifiable Homomorphic Encryption

cryptography

Last synced: 15 Jan 2026

https://github.com/firaskahlaoui/secury

Secury is a robust encryption and security application designed to ensure data privacy and access management. It features data encryption (Caesar Cipher, AES) and implements advanced Identity and Access Management (IAM) techniques, including Role-Based Access Control (RBAC) and Access Control Lists (ACL).

access-management acl aes-encryption caesar-cipher cryptography data-security encryption iam keyvault keyvault-secrets rbac siem

Last synced: 23 Jul 2025

https://github.com/cyanheads/toolkit-mcp-server

A Model Context Protocol server providing LLM Agents with system utilities and tools, including IP geolocation, network diagnostics, system monitoring, cryptographic operations, and QR code generation.

cryptography developer-tools geolocation llm llm-agent mcp model-context-protocol networking system-utilities typescript

Last synced: 28 Mar 2025

https://github.com/johndoe31415/padding-oracle-helper

PKCS#7 CBC padding oracle command line interface helper

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Last synced: 08 Apr 2026

https://github.com/pyrmont/digestive

Digest things in pure Janet

blake3 checksums cryptography md5 sha1 sha2 sha3

Last synced: 09 Mar 2026

https://github.com/togatech/tenvoy

PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org

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Last synced: 28 Jul 2025

https://github.com/mohammadumar-dev/passkeys-cli

A secure, production-level command-line password manager with encryption, validation, and enhanced user experience.

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Last synced: 08 Mar 2026

https://github.com/ahf/erlang-ucrypto

µCrypto is a thin wrapper for the OpenSSL API's that are missing in OTP's crypto application.

cryptography elliptic-curves erlang openssl ripemd160

Last synced: 08 Apr 2026

https://github.com/slowli/secret-tree

Hierarchical secret derivation with Blake2b and RNGs

cryptography key-derivation

Last synced: 22 Mar 2025

https://github.com/lvmalware/ztunnel

Secure End-To-End Encrypted tunnels using zig

cryptography e2ee hybrid-encryption kyber quantum-resistant-crypto tunnel x25519kyber768 zig zig-package

Last synced: 28 Jul 2025

https://github.com/opensuse/wardstone

Assess compliance for cryptographic keys.

certificates cryptographic-keys cryptography google-summer-of-code gsoc open-suse opensuse rust security security-audit security-automation security-tools suse x509

Last synced: 17 Aug 2025

https://github.com/r3li4nt/aescrypter

Encrypt and Decrypt files with Advanced Encryption Standard.

aes aes-128 aes-192 aes-256 aes-encryption cryptography decrypt encrypt linux python security

Last synced: 09 Mar 2026

https://github.com/hegdepavankumar/cipher-encryption-decryption

Cipher Encryption/Decryption This project is a simple implementation of the cipher encryption and decryption algorithm using JavaScript, HTML, and CSS. The cipher is a substitution cipher that replaces each letter in the plaintext with a letter a certain number of positions down the alphabet.

cipher cipher-algorithms cryptography encryption-algorithms encryption-decryption hashing-algorithm networking-concepts password security

Last synced: 03 Aug 2025

https://github.com/lowleveldesign/powercrypto

PowerShell module with various commands to encode/encrypt/print byte arrays.

cryptography powershell

Last synced: 01 Aug 2025

https://github.com/nicknaso/cryptoppjs

Node.js native addons for cryptopp

cplusplus crypto cryptography javascript native-module nodejs

Last synced: 17 Feb 2026

https://github.com/smirnovvad/shasum

shasum implemented in rust

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Last synced: 10 Apr 2025

https://github.com/mortendahl/pond

Experimental library for deep learning on encrypted data

cryptography deep-learning machine-learning secure-computation

Last synced: 15 Jan 2026

https://github.com/horus-org/payjoin-react-native

React Native Library to Payjoin

bitcoin cryptography lightning-network payjoin privacy

Last synced: 13 Oct 2025

https://github.com/sammyne/sm3

A Go implementation of SM3 cryptographic hash algorithm.

cryptographic-hash-functions cryptography

Last synced: 10 Apr 2025

https://github.com/ashrockzzz2003/vault_007

One place to manage all your passwords!

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Last synced: 08 Mar 2026

https://github.com/mk-fg/tinydns-dynamic-dns-updater

Tool to generate and keep tinydns zone file with dynamic dns entries for remote hosts

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Last synced: 16 May 2026

https://github.com/querdos/flask-encryptor

Flask extension helping encrypting users personal files

cryptography decryption encryption file flask upload users

Last synced: 08 Mar 2026

https://github.com/ocdbytes/keylogger-python

Keylogger made with python including mailing and encryption services to get the user info and keylogs in a formated way.

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Last synced: 19 Mar 2025

https://github.com/shagege/blackbox

Surveillance tool using a permissionless blockchain

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Last synced: 18 Aug 2025

https://github.com/isaka-james/caesar

The Linux tool to decrypt Caesar Cipher written using Rust, Very Fast Indeed

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Last synced: 15 May 2026

https://github.com/chardoncs/libpgfe

Experimental cryptographic & OTP library

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Last synced: 12 Mar 2025

https://github.com/damianmorozov/examplecrypt

Examples of crypting algorithms

crypto cryptography

Last synced: 30 Oct 2025

https://github.com/2140-dev/swiftsync

SwiftSync node and underlying crates

bitcoin cryptocurrency cryptography peer-to-peer

Last synced: 29 Aug 2025

https://github.com/johnkommas/barcodereader

Barcode Generator From Entersoft SQL

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Last synced: 23 Apr 2025

https://github.com/yds12/guarakapa

Password manager for the terminal.

cli command-line cryptography password password-manager rust terminal tui

Last synced: 10 Apr 2025

https://github.com/hongyanwang/crypto-lab

Golang implementation of multiple crypto protocols

cryptography golang

Last synced: 21 Feb 2026

https://github.com/null93/rsa-encryption

Implementation of the RSA encryption algorithm using big-integer algebra algorithms

cryptography rsa rsa-encryption

Last synced: 05 Sep 2025

https://github.com/makemake-kbo/macrypt

Macrypt is a research blockchain built completely from scratch.

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Last synced: 13 Jul 2025

https://github.com/zebrunner/carina-crypto

Cryptographic Java Library. Provides an interface for encrypting / decrypting based on Cipher. Part of the Carina Framework

carina carina-framework cryptography java security

Last synced: 30 Apr 2025

https://github.com/kamushadenes/cloud-verify

Cryptographic attestation to verify if your application is running within a cloud environment.

cloud cryptography verification

Last synced: 30 Aug 2025

https://github.com/demining/vulnerable-to-debian-openssl-bug-cve-2008-0166

Search for BTC coins on earlier versions of Bitcoin Core with critical vulnerability OpenSSL 0.9.8 CVE-2008-0166

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Last synced: 03 May 2025

https://github.com/omiyagames/omiya-games-cryptography

Unity package containig a collection of cryptography-related tools.

cryptography omiya-games openupm unity unity-asset unity-editor unity-scripts unity2d unity3d

Last synced: 26 Jan 2026

https://github.com/xannythepleb/pycrypt

A rudimentary encryption program written in Python. Plan to add a lot more functionality soon. Please note this is an unaudited hobby project! If security is vital, use Signal or PGP.

blake2b chacha20-poly1305 cryptography encryption-tool python-encryption python3

Last synced: 05 Jun 2026

https://github.com/mgit-at/mqv

Package mqv implements MQV ECC as described in "NIST Special Publication 800-56A Revision 3".

cryptography cryptography-algorithms cryptography-library golang golang-package

Last synced: 09 Mar 2026

https://github.com/phlay/pspka

password seeded public key authentication

asymmetric-cryptography authentication cryptography password

Last synced: 08 Apr 2025

https://github.com/nmrr/nitrokeyhsm-cheatsheet

A cheat sheet of PKCS11 command to use Nitrokey HSM 2 (or other PKCS11 HSM)

cryptography hardware-security-module hsm pkcs11 smartcard

Last synced: 03 Jan 2026

https://github.com/jpkusumi/greenfieldpqc

Side step quantum threats. Level up your encryption. Future proof your code. This cryptographic library for .NET development includes NIST standardized cryptographic primitives and Kusumi-512, a novel stream symmetric cipher with a 512 bit key size for enhanced quantum resistance.

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Last synced: 06 Feb 2026

https://github.com/rarestype/swift-cryptography

don’t build boringssl from source

autosync cryptography swift swift-server

Last synced: 28 May 2026

https://github.com/leplusorg/docker-crypt

Multi-platform Docker container with utilities to cipher/decipher/sign data (gnupg, openssl, age, jose, xmlsec...).

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Last synced: 11 Jun 2026

https://github.com/cs-joy/cryptography

about cryptography

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Last synced: 23 Jan 2026

https://github.com/geeklearningio/gl-ionic-secure-file-storage

A service using two encryption plugins to encrypt data on iOS and Android

cordova cryptography ionic security storage

Last synced: 28 Apr 2025

https://github.com/kiooku/cryptography-notebook

Cryptography Notebook is a repository containing some of the cryptographic implementations I have done for learning purposes.

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Last synced: 23 Apr 2025

https://github.com/carlodepieri/vcrpy-encrypt

Encrypt vcrpy cassettes so they can be safely kept under version control.

cryptography python testing unit-testing vcrpy

Last synced: 13 Oct 2025

https://github.com/matutetandil/anyhide

Hide any data in any file. Steganography tool that never modifies the carrier - transmits only encrypted positions. X25519 + ChaCha20 with forward secrecy.

chacha20 cli covert-communication cryptography data-hiding encryption forward-secrecy plausible-deniability privacy rust security steganography x25519

Last synced: 13 Jan 2026

https://github.com/yangboz/istorybook

a oh-so-adorable CryptoStorybook with Benny, Nick, SoftEmpire, Jiale...

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Last synced: 14 Aug 2025

https://github.com/legend2ks/rapidsum

Checksum calculator and verifier tool

checksum checksum-calculator crc32 cryptography hashing md5 sha1 utilities

Last synced: 28 Apr 2026

https://github.com/shantanu66/cryptchat

A Desktop Application made using Tkinter framework in Python for Text Chatting between indivisuals or groups which is end to end encrypted using symmetric cyrptography algorithms.

aes-encryption cryptography desktop-application flask-api mongodb python tkinter

Last synced: 07 Oct 2025

https://github.com/qantik/ratcheted

Performance Survey of Several Ratcheted Key-Agreement and Messaging Protocols

benchmark cryptography go messaging ratchet

Last synced: 23 Mar 2025

https://github.com/wolframalph/dh

Diffie-Hellman key exchange implementation in Go

cryptography diffie-hellman golang

Last synced: 02 Jul 2025

https://github.com/jitendragangwar123/100-days-of-web3-challenge

This repository contains a comprehensive overview of the fundamental concepts related to Blockchain Technology that I've acquired during the 100DaysOfWeb3 challenge. It serves as a valuable resource for understanding the core principles of blockchain technology.

blockchain cryptography ethereum etherjs javascipt smart-contracts solidity web3js

Last synced: 24 Aug 2025

https://github.com/tteeoo/sest

🔑 A local command-line based password manager using AES-256 encryption.

command-line cryptography encryption go golang password-manager

Last synced: 17 Feb 2026

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

Zero-knowledge server for secure storage and transfer of E2E encrypted data.

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Last synced: 19 Apr 2025

https://github.com/usscalsst41/xyn-seedwatcher-crypto-balance-checker-searcher-multicoin

This repository offers a versatile toolkit for managing multiple cryptocurrencies. Xyn SeedWatcher includes tools for balance checking, address searching, and multi-coin support. Use this to efficiently monitor and manage your crypto assets.

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Last synced: 28 Oct 2025

https://github.com/zeyadetman/image-textsteganography

🖼 An image steganography by converting the image into text of pixels and use the LSB to hide the ciphered text that encrypted by The Caesar cipher Algorithm (Cryptography). The project decrypt the image by loading it, converting the pixels’ digits and break the LSB.

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Last synced: 27 Sep 2025

https://github.com/ricky-ultimate/rust-rsa-encryption

A rust program to simulate RSA encryption & decryption operations on a small scale

cryptography rsa-encryption rust rust-lang

Last synced: 23 May 2026

https://github.com/OmiyaGames/omiya-games-cryptography

Unity package containig a collection of cryptography-related tools.

cryptography omiya-games openupm unity unity-asset unity-editor unity-scripts unity2d unity3d

Last synced: 25 Apr 2025

https://github.com/dmamakas2000/cryptanalysis-python

In this project, we experiment with the use of diverse cryptographic algorithms. First, we attempt to encrypt a plaintext message using the Vigenère Algorithm and a fixed-length encryption key. Afterward, we experiment with the decryption of the produced cipher using Kasiski's Method, as well as the Index of Coincidence statistical test.

cryptography index-of-coincidence jupyter-notebook kasiski-test python vigenere-cipher

Last synced: 18 Feb 2026

https://github.com/dorssel/dotnet-aes-extra

.NET Standard 2.0 implementation of AES-CTR, AES-CMAC, SIV-AES (aka AES-SIV), AES-CMAC-PRF-128 (aka PRF_AES128_CMAC), and PBKDF2-AES-CMAC-PRF-128.

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Last synced: 09 Apr 2025

https://github.com/ltonetwork/seasalt

NaCl compatible cryptography library using Bouncy Castle (Java)

cryptography java

Last synced: 14 Jan 2026

https://github.com/hmxustin/pybchain

Реализация блокчейна, работающего по протоколу PoW

blockchain cryptocurrency cryptography equicoin

Last synced: 26 Jan 2026

https://github.com/apogiatzis/powsolver

A proof of work puzzle solver for CTF challenges

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Last synced: 30 Aug 2025

https://github.com/argosylabs/gubbins

Gubbins product serial number generator & validator

cryptography serial-numbers

Last synced: 12 Jun 2025

https://github.com/dajiaji/mkkey

Application-layer Key Generator supporting JWK (JSON Web Key) and PASERK (Platform-Agnostic Serialized Keys).

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Last synced: 14 Jan 2026

https://github.com/eminmuhammadi/hidemydata

Managing a couple of algorithms to decrypt or encrypt text [PHP]

algorithms assymetric-security cryptography decryption encryption php

Last synced: 07 Jan 2026

https://github.com/jsign/zig-eth-secp256k1

A Zig libsecp256k1 wrapper with bells and whistles for Ethereum

cryptography ethereum secp256k1 zig

Last synced: 18 Mar 2025

https://github.com/markus-beuckelmann/aescrypt

aescrypt is a small command line tool to encrypt/decrypt files and directories with the well-established AES-256-CBC algorithm.

aes-encryption aescrypt cryptography docopt pycrypto python

Last synced: 25 May 2026

https://github.com/radkomih/cryptography-resources

Cryptography related resources

cryptography knowledge-proofs mathematics number-theory zero-knowledge zero-knowledge-proofs zkp

Last synced: 04 Feb 2026

https://github.com/lukasz-zimnoch/ipfs-market

Example repository intended to demonstrate a simple digital goods trading system powered by Ethereum smart contracts, IPFS file system and some basic cryptographic algorithms.

blockchain cryptocurrency cryptography ethereum go ipfs solidity