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An open API service indexing awesome lists of open source software.

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.

https://github.com/faheel/cryptopals-crypto-challenges

Solutions to the Cryptopals Crypto Challenges, mostly in Rust

crypto-challenges cryptography cryptopals rust

Last synced: 22 May 2026

https://github.com/ite-2022-pwr/sem4-oiak-proj-mb-ak

Organizacja i architektura komputerów - projekt

assembler assembly cryptography kyber-crystal

Last synced: 28 Mar 2025

https://github.com/tinyadapter/litecrypt.core

A Simple C# Cryptography Package Based on .NET Core

cryptography dotnet-core

Last synced: 16 Apr 2026

https://github.com/daleroberts/asd-coin

Playing with the ASD Commemorative Coin

cryptography

Last synced: 05 Jan 2026

https://github.com/tell/note-on-subgroup-security

This is a demonstration of "A Note on Subgroup Security in Pairing-Based Cryptography"

cryptography pairing subgroup-security

Last synced: 15 Mar 2025

https://github.com/mokkunsuzuki-code/stage354

Stage354: Signature Key Rotation Ledger Layer with Stage178 Assumption, Threat Model, and Guarantee Binding. Transparent key lifecycle tracking, signature key status recording, ledger chaining, and PQC migration-aware verification metadata.

audit compliance cryptography cybersecurity ed25519 evidence gpg key-lifecycle key-rotation ledger ml-dsa pqc provenance qsp signature-verification sigstore supply-chain-security transparency trust verification

Last synced: 23 Jun 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/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/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/ocdbytes/giftlist-merkletrees

Alchemy University : Week 2 challenge

blockchain cryptography merkle-proof

Last synced: 11 Apr 2026

https://github.com/epicreach/tkey-web-authentication

Secure Go-based proxy server using TKey hardware for passwordless website authentication.

authentication cryptography daemon go proxy-server security-tools

Last synced: 04 Mar 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/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/farfarfun/funsecret

加密和安全工具包 - 提供加密、解密和安全相关功能

cryptography encryption farfarfun python secret security

Last synced: 05 Mar 2026

https://github.com/purrproof/merkle-proof-vis

A tool to visualize Merkle trees, generate multi-proofs, and demonstrate the proof application process.

blockchain cryptography ethereum merkle merkle-proof merkle-tree merkletree visualization vizualisation

Last synced: 19 Apr 2026

https://github.com/1limxapp/react-native-chacha20-poly1305

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

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

Last synced: 21 Feb 2026

https://github.com/tigeryant/cryptopals-challenges

Solutions to the cryptopals cryptography challenges

coding-challenges cplusplus cryptography cryptopals

Last synced: 16 Jun 2026

https://github.com/oanderoficial/bitcoin-cli-script

Ferramenta em C, que é um utilitário para o bitcoin-cli. Com o Bitcoin-cli Script você terá mais agilidade em obter informações da blockchain utilizando o seu node.

bitcoin bitcoin-cli blockchain blockchain-technology cryptography linux node

Last synced: 17 Apr 2026

https://github.com/anishvedant/chat-box-application

This repository contains a secure chat application implemented using Python. The application uses RSA encryption for secure message exchange between clients and a server.

algorithm chat-application cryptography encrypted-messages encryption-decryption multi-client-support python python-gui-tkinter python-socket-server real-time real-time-messaging rsa-cryptography rsa-encryption secure-chat secure-communication socket socket-programming tkinter tkinter-gui

Last synced: 01 Sep 2025

https://github.com/thibmeu/rfc9500

Public Key Cryptography Test Keys from RFC 9500

cryptography rfc test

Last synced: 17 Apr 2026

https://github.com/lihongjie0209/sm-js-bc

SM2/SM3 cryptography TypeScript implementation based on Bouncy Castle Java - Zero dependencies, fully compatible, browser & Node.js support

bouncy-castle chinese-cryptography cryptography elliptic-curve gm-algorithm sm2 sm3 typescript

Last synced: 04 Apr 2026

https://github.com/mw2000/ubt

A reference implementation of a unified binary tree using 32-byte keys and values

cryptography ethereum merkle-tree

Last synced: 04 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/4lessandrodev/cesar-cipher

A simple TypeScript library for Caesar cipher encryption and decryption

cesar-cipher cryptography shift-cipher

Last synced: 30 Jan 2026

https://github.com/albovo/ctf-writeups

Here you can find some of the writeups of the ctfs I've played so far.

cryptography ctf-writeups network-security pwn python reverse-engineering scripting web-security

Last synced: 17 Apr 2026

https://github.com/sovereignbase/cryptosuite

JS/TS runtime-agnostic, quantum-safe, and agile cryptography toolkit with a declarative API for cipher messaging, message authentication, digital signatures, key agreement, and identifiers.

browser bun bytecodec crypto cryptography decryption deno encryption hmac jwk node opaque-identifiers signing sovereignbase typescript verification webcrypto

Last synced: 17 Apr 2026

https://github.com/stzyium/saltforge

A simple Python password security system using cryptographic concepts like salting, hashing, and PBKDF2.

cryptography hashing hashlib password-security python python-project salting sha256 sha256-hash

Last synced: 24 Oct 2025

https://github.com/deviant101/side-channel-attacks-countermeasures

Implementation of timing and power analysis side-channel attacks on AES encryption with effective countermeasures and security analysis.

cryptography information-security infosec-project power-analysis python security-analysis side-channel-attacks timing-attack

Last synced: 29 Jun 2025

https://github.com/frankrichardhall/huddle01-testnet-airdrop-bot

A Node.js-based automation script that helps you join Huddle01 rooms with multiple wallet accounts at once to earn testnet participation points efficiently.

airdrop automation blockchain cryptography evm google-meet meet node testnet

Last synced: 22 Aug 2025

https://github.com/starlingvibes/rsa-factoring-challenge

We have sniffed an unsecured network and found numbers that are used to encrypt very important documents. It seems that those numbers are not always generated using large enough prime numbers. Your mission should you choose to accept it, is to factorize these numbers as fast as possible before the target fixes this bug on their server - so that we can decode the encrypted documents.

cryptography prime-numbers rsa

Last synced: 21 Apr 2026

https://github.com/bch-team-pro/bch-wallet

Bitcoin Cash (BCH) – securely send, receive, and store BCH with full control over your private keys. Works on Windows, Linux, and macOS, with support for hardware wallets, QR codes, and transaction tracking. No registration required—ideal for desktop-focused users.

bch bch-coin bch-electrum-wallet bch-wallet bitcoin-cash bitcoin-wallet crypto crypto-wallet cryptography electrum electrum-bitcoin-cash electrum-cash electum-bch non-custodial web3

Last synced: 21 Apr 2026

https://github.com/separatrixxx/crypto_labs_6_sem

👓 Laboratory work for the 6th semester of MAI on cryptography

cryptography matplotlib numpy python

Last synced: 21 Apr 2026

https://github.com/dotcoocoo/hermitstash

Post-quantum encrypted, self-hosted file sharing. ML-KEM-1024 + P-384 hybrid crypto, zero plaintext on disk, one-command deploy. 🦀

argon2 cryptography docker encryption end-to-end-encryption fido2 file-sharing file-upload ml-kem nodejs passkeys post-quantum privacy security self-hosted sqlite webauthn xchacha20 zero-dependency zero-knowledge

Last synced: 30 May 2026

https://github.com/quantachain/quanta-android-core

Core Android library powering QuantaChain mobile applications, built in Rust for high-performance cryptographic operations and secure transaction handling.

cryptography pqc

Last synced: 05 Jun 2026

https://github.com/yoannchb-pro/private-html

PrivateHTML | Make the user access your page with a key

cryptography private-code

Last synced: 23 Aug 2025

https://github.com/teawithsand/crypka

Crypka makes writting apps that use cryptography easier

crypto cryptography encryption encryption-decryption-library

Last synced: 23 Apr 2026

https://github.com/4lessandrodev/saas-cryptography

a small project to test encryption as a service with nodejs

cryptography encryption

Last synced: 13 Jun 2026

https://github.com/selendra/contract-registry

Selendra Contract Registry is a WASM smart contract registry writen in Rust based on ink! smart contract framwork.

cryptocurrency cryptography p2p-network payment rustlang smart-contracts token wasm

Last synced: 24 Apr 2026

https://github.com/mateusjssilva/digital-envelope

Implementation of a Digital Envelope system, which allows the protection and secure transmission of files through encryption.

cryptography envelope-encryption java secure

Last synced: 24 Apr 2026

https://github.com/mttbernardini/mbc

🔐 Library and CLI for the MBC encryption algorithm. C remake of https://github.com/mttbernardini/mbencrypter.

algorithm c-library cryptography hex-strings library raw-data symmetric-keys text

Last synced: 11 Jul 2025

https://github.com/simplito/crypt-erl

Erlang wrapper for unix libcrypt library

bcrypt cryptography erlang libcrypt

Last synced: 06 Jun 2026

https://github.com/jurshsmith/vaultstream

High-Performance Distributed Digital Signature System

cryptography ecdsa-key-pair golang jetstream nats-streaming postgresql

Last synced: 25 Apr 2026

https://github.com/islam-hady9/image-encryption-and-steganography-with-des_and_lsb

An image encryption and steganography project implementing DES encryption and LSB techniques for secure image embedding and transmission.

cryptography decryption des encryption image-processing jupyter-notebook lsb python steganography

Last synced: 25 Apr 2026

https://github.com/imnotannamaria/python-flask-auth

Flask User Authentication and CRUD API

cryptography flask pymysql python

Last synced: 25 Apr 2026

https://github.com/kodzonko/sdex-enrypted-communicator

Mobilna aplikacja webowa komunikatora szyfrującego wiadomości metodą SDEx z funkcją skrótu BLAKE3.

blake3 cryptography sdex secure-communication secure-messaging secure-messenger

Last synced: 15 May 2025

https://github.com/fstrahij/cryptography

Project on Faculty of Organization and Informatics in Varaždin on course Operationg systems 2.

aes cryptography python sha256

Last synced: 06 Jun 2026

https://github.com/hidayatarg/blockchain_cryptocurrency_node.js

Building own crypto-Currency, that only has value dependent on those who back it. For security, cryptocurrencies rely on blockchaining: a database organized in such a way that records are kept secure through peer-to-peer networks. Each record is kept within a block, and each block holds a timestamp and link to the block before it. The first cryptocurrency was Bitcoin, implemented in 2009 by Satoshi Nakamoto.

cryptocurrency cryptography

Last synced: 10 Apr 2026

https://github.com/sycanz/ctf-writeups

My writeups for CTFs I've been in

cryptography ctf-writeups python3

Last synced: 15 May 2025

https://github.com/validpay-io/validpay-react-native-sdk

Official React Native SDK for ValidPay CVCP — QR-based cryptographic document verification for mobile apps.

check-fraud cryptography document-verification mobile-sdk qr-verification react-native

Last synced: 15 Jun 2026

https://github.com/0xm4rk1h/human-collapse

A Minecraft modpack focused on technology and automation, with the goal of uncovering the truth. Obtaining the “Tome of Knowledge” grants you a book containing clues to discover that truth, and you will need to use cryptography and steganography to achieve it.

cryptography minecraft modpack steganography

Last synced: 07 Jun 2026

https://github.com/santiellena/cryptopals

My solutions to Cryptopals challenges (http://cryptopals.com/) written in Rust

cryptography rust-lang security

Last synced: 07 Jun 2026

https://github.com/l0g0rhythm/cryptoolsec

Secure Python CLI & GUI tool for efficient file/stream encryption & decryption (AES-256-GCM, streaming I/O). Supports passwords (Argon2id+Salt) or key files. Built for security and automation

aes aes-256 aes-gcm argon2 argon2id authenticated-encryption cli cross-platform cryptography decryption encryption file-encryption gui kdf pyside6 python python3 qt6 security streaming

Last synced: 27 Apr 2026

https://github.com/jose-compu/vdf-rs

An implementation of Verifiable Delay Functions in Rust

crypto cryptography cryptography-library rs rust vdf verifiable-delay-functions

Last synced: 16 Jun 2026

https://github.com/rlxchap2/crypto-miner

🔨Crypto Miner is a Python project designed to encrypt and decrypt files, especially images, using the powerful cryptography library

crypto cryptography csv numpy pillow python

Last synced: 08 May 2026

https://github.com/a-luna/dotnetcore-crypto

.NET Core 2.0 class library containing an implementation of SHA-3 hashing functions and file encryption methods which employ both AES and RSA algorithms to maximize data security and computational efficiency.

cryptography csharp dotnet-core dotnet-core2 dotnetcore encryption encryption-algorithms hashing sha3 sha3-224 sha3-256 sha3-384 sha3-512

Last synced: 28 Apr 2026

https://github.com/gbennnn/stegcrypt

StegCrypt is a lightweight steganography tool for securely embedding and extracting hidden messages within digital images.

cryptography decryption encription flask image-encryption python secret steganography

Last synced: 28 Apr 2026

https://github.com/hemantksingh/blockchain

A simple blockchain that doesn't use proof-of-work

blockchain cryptography

Last synced: 30 Mar 2025

https://github.com/zairbulos/password-generator

Password generator build with Python.

cryptography python

Last synced: 05 Jul 2025

https://github.com/e9cipher/g-encryptor

Python cryptography tool to encrypt/decrypt files in a specified directory

cryptography cryptography-tools python3 shell

Last synced: 31 Aug 2025

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

the application was created as part of the final project for the PJC (Fundamentals of Programming in C and C++) course at PJAIT

cpp17 cryptography password-manager security

Last synced: 22 Mar 2025

https://github.com/pavan-m060/capstone_project

🔐 Encryption & Decryption Web App A simple Flask-based web application that implements Caesar and Transposition ciphers for secure text encryption and decryption. Includes file handling support and a user-friendly local HTML interface for seamless interaction.

ceaser-cipher cryptography decryption encryption filehandling flask python transposition-cipher webapplication

Last synced: 30 Apr 2026

https://github.com/mohamedmetwalli5/ellipticcurvecryptography-simulator

🛡️ Elliptic-curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. This is a simulator of how the process works.

cryptography cybersecurity

Last synced: 19 Jun 2026

https://github.com/hptrk/uni-rabin-encryption-python

(UNIVERSITY) Implementation of the Rabin cryptosystem and digital signatures using modular arithmetic and prime number theory. Includes encryption, decryption, and signature verification with a detailed PDF report.

cryptography python rabin-cryptosystem sagemath university-project

Last synced: 30 Apr 2026

https://github.com/techatlasdev/cryptorot

🎲 Un sistema enfocado en el cifrado simétrico, encargado de poder convertir un conjunto de palabras legibles, en un conjunto de caracteres que no tienen coherencia pero si relación en función a sus llaves.

algorithm cli cryptography path python rot rot13 rot13-cipher rot13-decoder rotation

Last synced: 17 Jun 2026

https://github.com/solidiquis/ether

Symmetric key encryption command-line utility.

command-line command-line-tool cryptography rust

Last synced: 28 May 2026

https://github.com/larueli/rsanf05utt

Chiffrement RSA en C dans le cadre d'un cours à l'UTT, école publique d'ingénieurs

c cryptography doxygen mathematics rsa utt

Last synced: 24 Jun 2026

https://github.com/unkaktus/padding

random padding

cryptography padding

Last synced: 08 Jun 2026

https://github.com/8go/hash_scrypt

Small CLI app in Python to hash passphrase for key derivation based on scrypt, for key derivation, for password stretching, and for hashing.

cli cli-app cryptography hash hashing kdf passlib password-hash password-stetching pyca python python3 scrypt

Last synced: 07 Apr 2025

https://github.com/rr-cmd/des_algorithm

Simple Java project for encrypting and decrypting using DES cryptography algorithm

cryptography dataencryptionstandards java

Last synced: 22 Aug 2025

https://github.com/tolstoyj/go-voting-blockchain

🗳️ Production-ready blockchain-based voting system built with Go. Features secure cryptographic operations, real-time results, and seamless deployment capabilities.

api blockchain cryptography docker go golang postgresql redis rest security voting

Last synced: 02 May 2026

https://github.com/adekbadek/files-encrypt

Encrypt/decrypt files

bash cryptography openssl

Last synced: 03 May 2026

https://github.com/wissensalt/butop

Cryptography File Application

cryptography swing-gui

Last synced: 12 Jan 2026

https://github.com/duguorong009/ripemd-160-rs

Personal practice of implementing the RIPEMD-160 hash function

cryptography hash ripemd160 rust-lang

Last synced: 09 Jun 2026

https://github.com/vikas2171/my-portfolio

An original, responsive terminal portfolio designed in Figma and built with vanilla HTML/CSS/JS. Features a live CLI, client-side ciphers, and serverless functions.

cli cryptography css figma html javascript netlify portfolio-website responsive-design serverless terminal

Last synced: 04 May 2026

https://github.com/lukasz0104/krypto_tul_2022

Podstawy kryptografii, FTIMS, Politechnika Łódzka, semestr 4

aes cryptography java javafx

Last synced: 04 May 2026

https://github.com/code-architect/custom-php-blockchain

Blockchain structure using PHP, has a full blockchain structure for demo purposes

blockchain-demos cryptography curl curl-commands flask-restful hashing merkle-root php-cli proof-of-concept proof-of-work rest-api

Last synced: 02 May 2026

https://github.com/armintamzarian/aenigma

User-friendly AngularJS encryption module utilizing the Web Cryptography API and providing an extensible secure secret storage mechanism.

angularjs cryptography localstorage webcrypto

Last synced: 05 May 2026

https://github.com/uofsc-fall-2022-math-587-001/homework6

The Chinese remainder theorem and its application in the Pohlig-Hellman algorithm for solving the discrete logarithm problem.

cryptography discrete-logarithm go latex math

Last synced: 05 May 2026

https://github.com/systemslibrarian/crypto-lab-webauthn

rowser-based WebAuthn/Passkeys demo — real ECDSA P-256 credential keys, challenge-response assertions signing origin+challenge+counter, phishing/replay/clone attacks all blocked. The private key never leaves the authenticator

authentication challenge-response crypto-lab cryptography ctap ecdsa fido2 p256 passkeys passwordless phishing-resistant webauthn

Last synced: 09 Jun 2026

https://github.com/romanian-solana-developer-program-c3/c3_comets_balea_lorena

This is a learning project for Comets of Web3's First Romanian Solana Developer Program.

anchor cryptography nfts rust solana tokens typescript web3

Last synced: 06 May 2026

Cryptography Awesome Lists
awesome-cryptography 272 awesome-blockchain-rust 108 Computer-Science-Resources 51 awesome-crypto-papers 102 awesome-he 90 awesome-substrate 165 awesome-ctf-resources 250 awesome-cryptography-rust 80 awesome-post-quantum 161 awesome-zama 344 Library-of-Ethereum 138 awesome-algorand 220 foundational-knowledge-for-programmers 53 awesome-infosec 83 awesome-ethereum-finance 93 awesome-risc0 46 Blockchain-Guide 538 tryhackme-awesome 1,057 bitcoin-history 137 awesome-position-based-quantum-cryptography 68 awesome-client-side-gpu 31 awesome-anonymity-papers 118 fucking-awesome-cryptography 195 free-cryptography-resources 73 awesome-julia-security 129 awesome-blockchain 30 awesome-bitcoin-internals 45
Cryptography Categories
Rooms 1,046 Frameworks and Libs 343 Contributed talks, posters and presentations 295 The list 248 Talks, posters, and presentations 243 Cryptography 175 Papers 173 Tutorials 158 Resources 155 Research papers and publications 141 Uncategorized 129 2018 101 Tools 101 MEV 89 Blockchain Explorers 89 Blockchain Playgrounds 81 Learning Resources 78 Blockchains 72 Research Groups 72 Misc 68