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
JSON Representation

https://github.com/alxiong/ark-srs

Use Common/Structured Reference String (CRS/SRS) from existing ceremonies with ease

cryptography trusted-setup zksnark

Last synced: 26 Jul 2025

https://github.com/volkanbicer/theblockchain

Blockchain application created with nodejs

blockchain cryptocurrency cryptography nodejs

Last synced: 16 May 2026

https://github.com/geeknik/qrypttalk

A Decentralized, Privacy-First Chat App

chat crypto cryptography encryption privacy

Last synced: 08 May 2026

https://github.com/yaeby/cipher-decoder

Some ciphers implemented in a streamlit app.

cryptography des des-algorithm des-decription des-encryption frequency-analysis playfair-cipher streamlit vigenere vigenere-cipher

Last synced: 18 Feb 2026

https://github.com/jasondrawdy/compendio

Collection of common and noteworthy extension methods, security tools, and filesystem functions generally found in most applications; focusing on extensibility and portability.

compendium converters cryptography data extensions generators hashing library security utilities validation windows

Last synced: 18 May 2026

https://github.com/tmlnv/sanity

Solana vanity address generator with CLI & TUI.

crypto cryptography go sol solana vanity vanity-address

Last synced: 12 Jan 2026

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/substrate-system/simple-aes

The simplest way to use AES keys in the browser or Node.

aes aes-encryption browser cryptography

Last synced: 28 Sep 2025

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.

cryptographic-algorithms cryptography cryptography-project quantum quantum-computing quantum-computing-research quantum-crypto quantum-cryptography quantum-key-distribution quantum-mechanics shor-algorithm tutorials

Last synced: 11 Apr 2025

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/cipherstash/enveloperb

Ruby bindings for the envelopers envelope-encryption library

cipherstash cryptography encryption envelope-encryption ruby

Last synced: 07 May 2025

https://github.com/newam/p256-cm4

A rust re-implementation of Emill/P256-Cortex-M4

cryptography embedded p256 rust

Last synced: 23 Dec 2025

https://github.com/odilitime/sniph

Snerx Sniph Cipher

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Last synced: 03 Aug 2025

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

Personal Website

bitcoin blog cryptography math privacy science statistics zig zine

Last synced: 10 Apr 2025

https://github.com/simplito/linked-pm

A simple web application which encrypts your private messages (Java Script client-side encryption) and converts them into clickable links and QR-codes.

application cryptography qrcode web

Last synced: 04 Mar 2025

https://github.com/zgsolucoes/zg-data-guard

ZG Data Guard is a centralized tool designed to streamline and secure the management of multiple databases across various environments. It simplifies administration by providing a unified platform to handle database ecosystems, technologies, instances, predefined roles, databases, users, and access control. All secured through JWT-protected API.

access-management clusters-management cryptography database-management docker go go-chi godotenv golang golang-migrate jwt-auth keycloak postgresql rest-api swagger2 swaggo testify users-management

Last synced: 28 Jan 2026

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

GitHub major projects Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

bcaproject btechproject computerscienceproject cryptography finalyear finalyearproject machine-learning malware malware-project mcaproject mtechproject project

Last synced: 18 Feb 2026

https://github.com/omarbaylee/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.

aeonvault capsulekey cryptography future-ai key-generation knowledge-preservation open-source password-manager random-password rust rust-crate rust-library time-capsule vaultkey

Last synced: 11 Jul 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/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/skyf0l/ncenc

Netcat wrapper to encrypt network traffic with openssl.

bash cryptography encryption nc netcat network network-encryption openssl pentest pentest-tool pentesting reverse-shell rsa

Last synced: 26 Apr 2026

https://github.com/hayr-hotoca/flutter_chacha20_poly1305

ChaCha20-Poly1305 encryption/decryption for Flutter. Native implementations make sure it has the fastest performance.

android chacha20 chacha20-poly1305 chacha20poly1305 cipher cipher-algorithms cross-platform cryptography cryptography-algorithms dart encryption encryption-algorithms flutter ios key

Last synced: 02 May 2026

https://github.com/constantin9845/trivium-encoder

Trivium stream cipher implementation with cryptographically secure IV and Key generator.

cryptography csprng trivium

Last synced: 31 Jul 2025

https://github.com/jimmygizmo/zerotools

Applications, tools and modules written in best-practice Python, Java, Javascript, C and Perl for personal projects, enterprise projects or education.

asyncio autobahn bookmark cryptography encryption ios java perl pexpect python recursive ruby swift tcl tk wamp

Last synced: 11 Apr 2026

https://github.com/azmisahin/azmisahin-software-cryptography-steganography-net

Crypto-Steganography: A condition in which the information contained in a readable data is not understood by the unwanted parties; Methods of converting a file, message, image, or video by hiding it in a file, message, image, or video.Crypto-Steganography: A condition in which the information contained in a readable data is not understood by the unwanted parties; Methods of converting a file, message, image, or video by hiding it in a file, message, image, or video.

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Last synced: 29 Mar 2025

https://github.com/benwoo1110/cryptography-gui

Simple visualisation for basic string cryptography algorithms

algorithms cryptography cryptography-gui pygame python3 string-cryptography-algorithms visualisation

Last synced: 31 Mar 2026

https://github.com/loneicewolf/cryptography

Encryption implemented in various languages. like AES and Serpent, more coming.

aes c cascade-encryption cipher cpp cryptography openssl rijndael serpent

Last synced: 08 Mar 2026

https://github.com/alhonaut/zkp-grpc-server

Chaum-Pederson Zero-Knowledge Proof in Rust with gRPC and Docker

cryptography grpc rust

Last synced: 03 May 2026

https://github.com/w3c/identity-web-impact

This document proposes an overview of Digital Identities on the Web and an analysis through different use cases of the systemic impact on both the market side and the human side, as well as the role that Web standardization may play in managing that impact

cryptography identity spice threat-modeling verifiable-credentials

Last synced: 11 Jul 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/ml3m/cryptography-algorithms-exploration

implementations of various cryptographic algorithms, including both symmetric and asymmetric encryption, hashing, and key exchange techniques

blowfish-algorithm chacha20 cryptography cryptography-algorithms cryptography-concepts encryption-decryption rsa-cryptography

Last synced: 18 Jun 2025

https://github.com/guillaumebouchetepitech/wasm-cryptopp-as-module

Basic WebAssembly port of the open source cryptography library libCrypto++

browser cpp17 cryptography javascript nodejs typescript wasm webassembly

Last synced: 11 Apr 2026

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

A simple online password manager web application with demo deployed in render.com

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Last synced: 15 Apr 2025

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/thomasdesr/minisign-action

Github action to sign and verify minisign/signify signatures

crypto cryptography github-actions gpg minisign pgp signify

Last synced: 05 Jan 2026

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

Cryptocurrency and Cryptographic blockchain Verifiadle Delay Functions project

cli cryptocurrency cryptography pietrzark-vdf python verifiable-delay-functions wesolowski-vdf

Last synced: 27 Dec 2025

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

Neural Distinguishers on TinyJAMBU-128 and GIFT-64

crypto cryptography deep-learning gift tinyjambu

Last synced: 07 Apr 2025

https://github.com/gotz1480/cryptography

Cryptography projects and algorithms in Python

cryptography cryptography-algorithms cryptography-library python python-cryptography python3

Last synced: 07 Apr 2025

https://github.com/rpj/poo-attest

Proof-of-Ownership attestation tool via commitment schemes

commitment-schemes cryptography ownership

Last synced: 29 Mar 2025

https://github.com/alvarogarciapiz/pycipherhub

Conjunto de cifradores desarrollados en Python

cifrador criptografia-basica cryptography cypher python

Last synced: 15 Mar 2025

https://github.com/salvacorts/fr-chat-client

:rocket: P2P Chat with asymmetric encryption

asymmetric-cryptography cryptography p2p-chat python rest-api rsa sockets tkinter

Last synced: 15 Mar 2025

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

Universal Zero Knowledge Contingent Payments (on hold)

bitcoin cryptography ethereum payment zero-knowledge

Last synced: 19 Apr 2026

https://github.com/r1b/cryptography

Self-study in cryptosystems

block-ciphers cryptography key-exchange-algorithms rust stream-ciphers

Last synced: 08 Apr 2025

https://github.com/nexenio/rxkeystore

RxJava wrapper for the Android keystore and cryptography utilities

android android-library cryptography rxjava

Last synced: 19 May 2026

https://github.com/jean0t/passmanager

Incredible password manager made in python

cryptography password-manager python3 sqlcipher3 sqlite3

Last synced: 10 Apr 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/ironcorelabs/ironoxide-swift

IronCore Labs SDK for Swift Applications

cryptography proxy-re-encryption swift transform-encryption

Last synced: 02 Jul 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/myusuf3/siapaperwallet

Create Sia Paper Wallets

cryptography paperwallet sia siacoin

Last synced: 05 Jan 2026

https://github.com/dinochiesa/apigee-custompolicy-rsacrypto

This is a custom Apigee policy, implemented in Java, that performs RSA Encryption and Decryption of data or message payloads, or RSA signing of data or message payloads, or verification of such signatures.

apigee cryptography rsa

Last synced: 10 Jun 2025

https://github.com/sorah/xaes_gcm

Ruby implementation of XAES-256-GCM, an extended-nonce AEAD built on AES-256-GCM

cryptography ruby xaes-256-gcm

Last synced: 28 May 2026

https://github.com/chinnanj666/message-encryption-decryption

This Python-based application provides a graphical user interface (GUI) for encrypting and decrypting messages using AES encryption.

aes algotithms cryptography python thinker

Last synced: 17 Jun 2025

https://github.com/helcsnewsxd/cbmc-analysis-report

Technical report on CBMC (C Bounded Model Checker) - Software Engineering II course project - Computer Science @ FAMAF (UNC)

bounded-model-checking cbmc cryptography ctf-writeup famaf formal-verification software-engineering static-analysis university-project

Last synced: 02 Jul 2025

https://github.com/rusq/gonss3

Subset of Mozilla NSS enough to decrypt firefox passwords

3des 3des-cbc asn1-der cryptography deciphering decryption firefox password pkcs5

Last synced: 31 Mar 2025

https://github.com/qnighy/crypt-impl-rust

cryptography hash-algorithm rust tls

Last synced: 31 Mar 2025

https://github.com/skyf0l/discrete-logarithm

Fast discrete logarithm solver in Rust

cryptography discrete-logarithm number-theory

Last synced: 11 Oct 2025

https://github.com/tankerhq/sdk-ruby

Tanker client-side encryption SDK for Ruby

cryptography encryption end-to-end privacy ruby sdk security tanker

Last synced: 09 Apr 2025

https://github.com/transferwise/crypto

Crypto helper modules

crypto cryptography vault

Last synced: 09 Apr 2025

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

Caesar Cipher using JavaScript

caesar-cipher cipher-algorithms cryptography

Last synced: 31 Mar 2025

https://github.com/jitendragangwar123/ekolance-solidity-cohort-2

This repository contains Solidity programming exercises that were discussed during the Ekolance Solidity Cohort 2. It serves as a resource for learning and practicing Solidity, a programming language used for developing smart contracts on blockchain platforms like Ethereum.

blockhain-tecnology cryptography ethereum solidity

Last synced: 07 Jan 2026

https://github.com/messagemedia/webhooks-demo

Set of scripts to demonstrate the use of MessageMedia's webhooks

cryptography messaging sms webhooks

Last synced: 02 Apr 2025

https://github.com/anvilco/node-encryption

RSA and AES Encryption helpers

aes cryptography encryption js node rsa

Last synced: 04 Jul 2025

https://github.com/dsprenkels/sss-swift

Swift bindings for my Shamir secret sharing library

cryptography shamir-secret-sharing

Last synced: 12 Jul 2025

https://github.com/gunh0/whitebox_cryptanalysis

🔒 Whitebox Cryptographic Code Example

cryptography security wbc

Last synced: 25 Mar 2025

https://github.com/ausaf007/multi-party-computation

Create Ethereum wallet with multi-party validation and threshold cryptography.

cryptography java multi-party-computation shamir-s-secret-sharing-scheme shamir-secret-sharing threshold-cryptography

Last synced: 04 Oct 2025

https://github.com/luffy0xcyber/cryptographie_classique

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

cesar-cipher cesar-cypher ciphers cryptography cybersecurity education encryption hill-cipher learning-project mathematics python security vigenere-cipher

Last synced: 13 Jun 2025

https://github.com/mobilecoinfoundation/rand

A platform abstraction layer providing a cryptographic RNG

cryptography no-std random rng

Last synced: 26 Jul 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/oliverbutler/steggy

Written in Rust, features a simple cli and a client-side webapp

cli cryptography rust steganography

Last synced: 12 Mar 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.

cryptography doubleratchet encryption perfect-forward-secrecy pfs ratchet

Last synced: 14 Jun 2025

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/harsh-ps-2003/rumi

A cryptography powered privacy-preserving discovery service design for mapping distinct identifiers to IDs without revealing any information to the server!

cryptography elliptic-curve-cryptography oram rust zero-knowledge

Last synced: 01 Mar 2025

https://github.com/nning/vigenere_jorin

Quick POC of an idea for a Vigenere variant, my 6 year old son inspired

cryptography vigenere

Last synced: 22 Jul 2025

https://github.com/ytisf/aasdfg

Create a truly random, en-masse, random seed using your webcam's noise. Locally.

cryptography entropy random-generation ssl-certificates

Last synced: 14 Jun 2025

https://github.com/dev-sire/algopython

This repository serves as a comprehensive collection of Python code related to data structures, algorithms, and cryptography. It includes solutions to daily LeetCode problems and various cryptographic implementations

cryptography dsa-algorithm leetcode-python python3

Last synced: 10 Apr 2025

https://github.com/moeraorg/java-moeralib

Java library to interact with Moera decentralized social network

cryptography decentralized java java-library library maven moera social-network

Last synced: 23 Feb 2026

https://github.com/sudiptab2100/cryptographicalgorithms

Implementation of Cryptographic Algorithms of course Modern Cryptography(CSC049P1M) offered in IIT Jammu.

aes-encryption affine-cipher ceaser-cipher cryptoanalysis cryptoanalysis-algorithms cryptography des-encryption diffie-hellman-key grain-stream-cipher hill-cipher rc4-algorithm rc4-cipher rc4-encryption rsa-cryptography rsa-encryption substitution-cipher vigenere-cipher

Last synced: 07 Jul 2025

https://github.com/kpdemetriou/spectral-aead

An algorithm for authenticated encryption with associated data using Speck and HMAC-SHA256.

cffi cipher ciphers cryptography decryption encryption hash hash-functions hmac message-authentication-code python sha256 speck

Last synced: 14 Jan 2026

https://github.com/mashatan/go-cryptoconditions

Crypto-Conditions in Go

cryptoconditions cryptography golang-package

Last synced: 14 Jan 2026

https://github.com/hayr-hotoca/react-native-chacha20-poly1305

ChaCha20-Poly1305 encryption/decryption for React Native. Native implementations make sure it has the fastest performance.

256-bit aes android chacha20 chacha20-poly1305 chacha20poly1305 cipher cipher-algorithms cross-platform cryptography encryption encryption-algorithms ios javascript react react-native reactjs typescript

Last synced: 07 Oct 2025

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.

bioinformatics cryptography data-security dna encryption-decryption genetic-algorithms genetic-code hill-cipher

Last synced: 07 Oct 2025

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

Be Hideous Before Zeal Cease Zealotry.

cryptography decryption encryption study study-group study-project

Last synced: 10 Oct 2025

https://github.com/obaskly/anonymouschat

Secure Anonymous Chat

chat cryptography end-to-end-encryption flask python rsa

Last synced: 19 Jan 2026

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

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

command-line-tool cryptography ecc-cryptography key-derivation passphrase rsa-cryptography rust secret-sharing

Last synced: 19 Jan 2026

https://github.com/h-alice/python-ecc-keyexchange

A simple PoC for ECC key exchange in Python.

cryptography elliptic-curve-cryptography python security

Last synced: 12 Oct 2025

https://github.com/hmasila/crypto-php

crypto cryptocurrencies cryptocurrency cryptocurrency-exchanges cryptography

Last synced: 13 Oct 2025

https://github.com/mohitrajain/rootctf

CTF ( Capture the flag a cyber security event ) .

cryptography ctf forensics pwning reverse-engineering steganography system-administration web-exploitation

Last synced: 13 Oct 2025

https://github.com/nulltea/nulltea

0️⃣ ☕️ - research engineer

blockchain cryptography golang rust

Last synced: 14 Oct 2025

https://github.com/romainbou/ise2ee

Is it End-to-end Encrypted?

cryptography encryption messaging

Last synced: 14 Oct 2025

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

Integer Squaring Algorithm

algorithm cryptographic cryptography integer-arithmetic integer-squaring multiplication product-scanning squaring

Last synced: 15 Oct 2025

https://github.com/volhovm/ocd-tasks

Solutions for the "An Introduction to Mathematical Cryptography" textbook by Hoffstein, Pipher, Silverman

cryptography

Last synced: 16 Oct 2025

https://github.com/vaithak/birthday-paradox-simulation

A simulator of the birthday paradox problem

birthday-paradox cplusplus cryptography gnuplot graph paradox probability simulator vaithak

Last synced: 19 Oct 2025

https://github.com/xornet-sl/gosss

Shamir split/combine files/strings. Tool and library

cryptography go shamir

Last synced: 23 Jan 2026

https://github.com/kuzma02/secured-file-share

Secure File Sharing App is a comprehensive solution for secure file exchange, developed using the MERN (MongoDB, Express.js, React, Node.js) stack. This application enables users to share files with end-users with a high level of privacy and security.

cryptography encrypted-data encryption end-to-end-encryption file-sharing file-transfer mern mern-stack mern-stack-development secure-file-exchange secure-file-sharing secure-file-upload secure-web-apps transfer-data transfer-files

Last synced: 26 Oct 2025

https://github.com/dineshssdn-867/cryptography

Although there are different methods to encrypt and decrypt messages, we'll focus on a linear algebra-based cipher, the Hill cipher, which uses a matrix as a cipher to encode a message or an image, and it's extremely difficult to break when a large matrix is used.

colab-notebook cryptography hill-cipher linear-algebra matrix-multiplication

Last synced: 26 Oct 2025

https://github.com/tacitusxi/leskodex

LeskoDEX is a DEX with a decentralized orderbook and a custom ERC-20 ESKO token. Each user can connect to the DEX via Metamask and trade the ETH/ESKO pair. A custom chart for technical analysis is available.

crypto cryptocurrency cryptocurrency-exchanges cryptography currency dapp defi erc-20 eth ethereum smart-contracts solidity solidity-dapps solidity-language token