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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/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/en1gm4-exe/tryhackme

Write-ups and Walkthroughs for TryHackMe challenges and labs — covering enumeration, exploitation, privilege escalation, and more.

blue-teaming cryptography forensics hands-on-lab penetration-testing reverse-engineering shell

Last synced: 24 Apr 2026

https://github.com/swamikannan/revisiting-python

Building projects based on libraries such as Turtle and tkinter to brush up on non-ML skills

coffee-machine cryptography customtkinter etch-a-sketch password password-manager-app password-manager-ui python3 tkinter-gui tkinter-python turtle

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/ntdls/nasccl

NetworkDLS Algorithmic Symmetric Cipher Cryptography Library

cryptography encryption library

Last synced: 25 Apr 2026

https://github.com/ntdls/rijndael

A Rijndael/AES c++ implementation.

aes cryptography rijndael

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/rudolphreti/cicla

Cicla is a free application for generating ciphers that cannot be cracked without the key. The app enables both encryption and decryption of messages using a specially prepared key.

cryptography nodejs typescript

Last synced: 25 Apr 2026

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/aartintelligent/hosanna-rs-secret

Safe in-memory secret types for Rust - SecretString and SecretBytes with redacted Debug/Display, zeroisation on drop, constant-time equality, and deserialise-only serde. Rust counterpart to Pydantic's SecretStr / SecretBytes.

constant-time credentials cryptography no-unsafe redacted rust rust-crate secrets security zeroize

Last synced: 07 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/jchambers/java-noise

A Java implementation of the Noise Protocol Framework

cryptography java noise noise-protocol noise-protocol-framework security

Last synced: 26 Apr 2026

https://github.com/yunomiwell/nullwire

Encrypting messages is solved. Hiding that you sent one isn't — yet. NullWire: Loopix mixnet + X3DH/Double Ratchet E2E + Solana control plane. Pre-alpha. Whitepaper v0.3.

anonymous-communication blockchain cryptography double-ratchet loopix mixnet p2p post-quantum privacy rust solana sphinx x3dh zero-knowledge

Last synced: 27 Apr 2026

https://github.com/sundeeep/sundeeep-blockchain

Building blockchain from scratch using GoLang.

bitcoin blockchain cryptography golang network security sha256-hash web3

Last synced: 27 Apr 2026

https://github.com/glinford/oqs.js

Node.js Bindings for liboqs

cryptography nodejs postquantum

Last synced: 28 Apr 2026

https://github.com/davidalgis/filescrypter

Simple python tool for encrypting and decrypting files. For more secure information sharing/storage.

aes cryptography encryption-decryption python

Last synced: 28 Apr 2026

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

Simple caesar cipher encrypting, decrypting, and brute forcing functions

brute-force caesar-cipher cryptography

Last synced: 28 Apr 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/zacharytamas/rsa-server

A simple Node.js server for storing and verifying public keys.

cryptography nodejs

Last synced: 28 Apr 2026

https://github.com/armanghobadi/uecdh

is a lightweight, standards-compliant Elliptic Curve Diffie-Hellman (ECDH) key exchange library for MicroPython, optimized for ESP32 and other resource-constrained IoT devices

cryptography ecdh esp32 microcontroller micropyhton

Last synced: 28 Apr 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/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/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/jacob-ian/deno_rsa

Generate/decode RSA Public and Private Keys and create signatures with SHA256withRSA (RS256) in Deno.

cryptography deno denoland rsa typescript

Last synced: 29 Apr 2026

https://github.com/suprim-corp/kit-backend-base-java

Reusable Java backend toolkit — UUID, JSON, crypto, exception, web & gRPC (dev.suprim)

backend cryptography exception-handling grpc java java-library json maven spring-boot utilities

Last synced: 24 Jun 2026

https://github.com/dkxce/dixu

dkxce simple opensource free symmetric crypt algorythm (UTF8, ASCII, Win-1251)

512 cryptography dkxce encoder-decoder security text windows

Last synced: 29 Apr 2026

https://github.com/samuelgodoy/arca

ARCA - Cofre de Segredos ou Credenciais

cosmocc cryptography encryption password secret vault ziglang

Last synced: 29 Apr 2026

https://github.com/bastipnt/passmgr

Zero-knowledge password manager — cross-platform web + mobile, TypeScript monorepo. Early prototype.

bun cryptography drizzle-orm e2ee end-to-end-encryption expo fastify monorepo opaque pake password-manager react react-native self-hosted tailwindcss trpc turborepo typescript zero-knowledge

Last synced: 24 Jun 2026

https://github.com/thecolonycc/attestation-envelope-spec

Cross-platform attestation envelope spec for agent-native claims. Pointer-based evidence, custodian-signed coverage metadata, sigchain over a typed witnessed claim.

agent-identity agent-security ai-agents attestation colony cryptography ed25519 json-schema provenance specification thecolony verifiable-credentials

Last synced: 24 Jun 2026

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/aulanchik/decryptor

Code Cipher challenge

axios cryptography javascript nodejs

Last synced: 30 Apr 2026

https://github.com/adippel/cms-encryption-go

Go example for performing CMS encryption with OpenSSL using CGO. Companion code for the blog post “CMS Encryption in Go”.

cryptography go golang libcrypto openssl

Last synced: 08 Jun 2026

https://github.com/mutkuensert/androidsignatureexample

An example Android app for generating key pairs in trusted execution environment to sign data requiring biometric authentication using Android keystore.

android androidkeystore biometric-authentication cryptography digital-signature digital-signature-algorithm dsa-algorithm ecdsa elliptic-curve keypair keystore secure-enclave security tee trusted-execution-environment

Last synced: 01 May 2026

https://github.com/lokranjanp/2fa

A custom 2FA system using Python, SQL, Redis, and SMTP, featuring dynamic 6-digit OTP generation with PyOTP. Will develop it into AaaS [Authentication as a Service] .

cryptography entity-authorization flask python smtp user-authentication

Last synced: 01 May 2026

https://github.com/wissensalt/butop

Cryptography File Application

cryptography swing-gui

Last synced: 12 Jan 2026

https://github.com/baha2rm98/crypto_note

Developed by : Baha2rM98 and AshkanAbd

android-app cryptography java

Last synced: 02 May 2026

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/carloslfu/ts-crypto

Crypto utilities for TypeScript proyects

cryptography typescript

Last synced: 02 May 2026

https://github.com/cmangun/agentic-receipts

Standard receipts and trace semantics for verifiable agent execution

agentic-systems ai-governance cryptography provenance regulated-ai verifiable-ai

Last synced: 03 May 2026

https://github.com/ritartistry/hal

HAL is a secure HTTP API Layer for Large Language Models, enabling seamless web API interactions and automatic tool generation from OpenAPI specs. 🚀🌐

analyze compiler cryptocurrency cryptography dsl embedded face-animation fpga go gpu halo image-animation integrated-circuits javascript network objective-c security source-code

Last synced: 03 May 2026

https://github.com/rub-nds/ssh-strict-kex-violations-state-learning-artifacts

Artifacts for the paper "Finding SSH Strict Key Exchange Violations by State Learning", accepted at the ACM Conference on Computer and Communications Security (CCS) 2025.

artifacts attack cryptography cve-2025-32433 cve-2025-32942 ssh statelearning strict-kex vulnerability

Last synced: 25 Jun 2026

https://github.com/simonbetton/easydoge-km

Production-ready Dogecoin key-management SDK for Rust, Swift, Kotlin, Expo, and CLI/TUI.

cryptography dogecoin expo kotlin react-native rust swift wallet

Last synced: 09 Jun 2026

https://github.com/kwas123/blockchain-file-verification

🔒 Verify file integrity and authenticity with this decentralized system on Ethereum, ensuring secure, tamper-proof document validation through blockchain technology.

axios bitcoin blockchain blockchain-technology copyleft cryptography dapp fir modular move openpgp p2p pinata-ipfs python react sha256 timestamp trusted-timestamping

Last synced: 04 May 2026

https://github.com/jay4codes/skyjack-djss4ds

A Data Science Treasure Hunt

cryptography data-science firebase reactjs

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/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-key-exchange

Browser-based key-exchange evolution — DH → ECDH → X25519 → ML-KEM → hybrid. Live discrete-log attack on toy DH, real elliptic-curve point arithmetic, and the jump from shared-exponent to encapsulation. The same idea, five generations

crypto-lab cryptography diffie-hellman ecdh hybrid-key-exchange key-exchange ml-kem post-quantum-cryptography x25519

Last synced: 09 Jun 2026

https://github.com/systemslibrarian/crypto-lab-ssh-handshake

Browser-based SSH handshake demo — real X25519 ECDH key exchange authenticated by an Ed25519 host key, known_hosts Trust-On-First-Use, MITM detection on host-key change. First contact is a leap of faith

crypto-lab cryptography ecdh ed25519 forward-secrecy host-key key-exchange known-hosts mitm ssh tofu trust-model trust-on-first-use x25519

Last synced: 09 Jun 2026

https://github.com/systemslibrarian/crypto-lab-opaque-gate

Browser-based OPAQUE aPAKE demo (RFC 9807, July 2025) — OPRF blind/evaluate/unblind, AES-256-GCM credential envelope, 3DH mutual authentication, server breach simulation. The password never touches the server. No backends. No simulated math.

3dh authenticated-key-exchange crypto-lab cryptography forward-secrecy opaque oprf pake password-authentication rfc9807

Last synced: 09 Jun 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

https://github.com/caveyra/electron-executor-11

Roblox 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.

cryptography electron electron-app electron-exploit electron-v3 gpg mobile nodejs offline privacy python react security

Last synced: 06 May 2026

https://github.com/shazeus/passforge

Secure password and secret generator — passwords, passphrases, PINs, tokens, and strength analysis

cli cryptography entropy hibp passphrase password-generator passwords pyperclip python secrets security terminal

Last synced: 09 Jun 2026

https://github.com/pulijon/s3tools

Tools to manage S3 buckets and objects

aes aes-256 aws aws-glacier aws-s3 bash bucket cryptography glacier python s3 tkinter

Last synced: 06 May 2026

https://github.com/greydevv/naive-sha-256

A naive Python implementation of the 256-bit Secure Hash Algorithm (SHA-256).

binary bits cryptocurrency cryptography python sha256 sha256-hash

Last synced: 26 Jun 2026

https://github.com/nickylogan/kryptograf

A POC of encryption algorithms

cryptography javascript reactjs

Last synced: 07 May 2026

https://github.com/usman619/info-security

Some attacks that are possible on encryption techniques.

cryptography encryption encryption-decryption rsa

Last synced: 10 Jun 2026

https://github.com/tchello45/nimbus-encryption

An e2ee toolkit for the web in early stage development

cryptography rust wasm

Last synced: 08 May 2026

https://github.com/osamikoyo/facekid

simple crypto library for c

c crypto cryptography library

Last synced: 28 Jun 2026

https://github.com/timyiu478/cryptography-i

Cryptography I: foundational cryptographic principles and primitives course by Dan Boneh, Stanford University

aes-encryption cryptography protocol rsa-cryptography security

Last synced: 29 Jun 2026

https://github.com/markovianprotocol/markovian-protocol

Provenance layer for autonomous agents. COMMIT writes timestamped, ZK-verified, independently verifiable records that plug into W3C VC, A2A, MCP, and ERC-8004.

auxpow bip bitcoin blockchain cryptography hmm markov merged-mining proof-of-work zk-proofs

Last synced: 29 Jun 2026

https://github.com/diegoperea20/python-cryptography

Use of the python cryptography library to encrypt and decrypt messages symmetrically and asymmetrically, as well as giving digital assignments

asymetric cryptography encryption message python symetric uao

Last synced: 09 May 2026

https://github.com/akhilk07/zama-fhe

Explore detailed technical guides for the Zama FHE protocol. Set up your environment on Linux, Windows, or GitHub Codespace. 🚀💻

bounty bounty-program cli cryptography data-science fhe fully-homomorphic-encryption homomorphic-encryption machine-learning ppml privacy python rust sckiit-learn string tfhe zama

Last synced: 09 May 2026

https://github.com/cr0mb/satoshi-sweeper

Satoshi Sweeper is a Bitcoin wallet generator and balance checker. It generates mnemonic phrases, derives Bitcoin addresses (Legacy, Nested SegWit, and Native SegWit), and checks their balances using the Blockstream API.

biputils bitcoin bitcoin-finder bitcoin-recovery bitcoin-stealer bitcoin-wallet cryptography ethereum ethereum-finder ethereum-stealer ethereum-wallet hashlib

Last synced: 09 May 2026

https://github.com/ratware-official/ratcore.signing

Provides signing and verification of files using ECDSA P-256, secure key encryption, and trusted key validation.

cryptography csharp dotnet library signing

Last synced: 09 May 2026

https://github.com/kagal-dev/taistamp

Signed TAI64N timestamps over HTTP — Ed25519 over WebCrypto

cloudflare-workers cryptography dkim ed25519 eddsa monorepo signing tai64n timestamps typescript webcrypto

Last synced: 29 May 2026

https://github.com/raffadndm/qbot

Telegram bot in Python

barcode-scanner cryptography python qrcode

Last synced: 05 Sep 2025

https://github.com/bwesterb/germain

Counts safe primes

cryptography estimate germain safe-prime

Last synced: 31 Mar 2025

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/rushikeshghuge-19/blockchain_django

A secure Blockchain-Based Voting System built with Django. It records votes on a custom blockchain for transparency and integrity, featuring user authentication, candidate management, and real-time vote tallying. The backend uses Django, with SQLite for data storage.

blockchain cryptography django proof-of-work python sha-256 sqlite voting-system webdevelopment

Last synced: 10 May 2026

https://github.com/shanthanu9/cryptopals-solutions

Solutions for Matasano Cryptopals challenges

cryptography cryptopals-challenges

Last synced: 12 Jun 2025

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/scttnlsn/cryptopals

Cryptopals in Rust

cryptography cryptopals

Last synced: 07 Apr 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/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/paulshpilsher/genrsa

RSA keys generator written in Go

cryptography go pem publickey rsa

Last synced: 03 Nov 2025

https://github.com/mfridman/cryptopals

My solutions for http://cryptopals.com, written entirely in Go, sprinkled with concurrency

cryptography cryptopals go golang

Last synced: 16 Mar 2025

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/harish-balaji-b/password-manager

In developing a secure client-server model, we implement the Advanced Encryption Standard (AES) and a hashing algorithm from scratch. The AES implementation includes key expansion, key-mixing operations, and secure modes like Cipher Block Chaining (CBC). For hashing, we choose SHA-256 and ensure its resistant to common cryptographic attacks.

aes-encryption cbc cryptography pbkdf2 sha-256

Last synced: 09 Apr 2025

https://github.com/altonen/emissary

Rust implementation of the I2P protocol stack

anonymity cryptography i2p networking peer-to-peer rust

Last synced: 04 Feb 2026

https://github.com/prasunchakra/EncipherX

A simple Django-based Caesar Cipher application demonstrating basic text encryption and decryption. Currently for learning fundamental cryptographic concepts, experimenting with shift-based ciphers, and later on building upon for more advanced encryption methods.

cipher cryptography django python

Last synced: 16 Sep 2025

https://github.com/daimdn/cryptography-messageencryption

Brief tutorial of Cryptography. Based on previous solutions. Can be used along for sending messages

cryptography java

Last synced: 06 Sep 2025

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 539 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 Papers 326 Contributed talks, posters and presentations 295 The list 248 Talks, posters, and presentations 243 Cryptography 176 Tutorials 158 Resources 155 Research papers and publications 141 Uncategorized 129 2018 106 MEV 96 Tools 95 Blockchain Explorers 93 Blockchain Playgrounds 83 Learning Resources 76 Research Groups 74 Misc 74 2017 Scaling Battles 68