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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/guppster/ark-nim

A Nim library simplifying connection to the ARK blockchain

blockchain cryptography nim

Last synced: 25 May 2026

https://github.com/trashhalo/saltpack

node wrapper of saltpack library

cryptography keybase saltpack

Last synced: 11 Jan 2026

https://github.com/edeckers/lib1password-unofficial

Educational TypeScript implementation of 1Password's security model with interactive explainer. Covers Secret Key generation, PBKDF2 key derivation, and AES-256-GCM vault encryption

1password aes-256 cryptography educational encryption interactive-demo password-manager pbkdf2 pet-project security srp typescript web-crypto

Last synced: 28 Feb 2026

https://github.com/thefish/gogost

Cypherpunks.ru gogost mirror

cryptography encryption-algorithms gost russian

Last synced: 14 Jan 2026

https://github.com/lynkos/high-school-code

Archive containing my code for competitive programming problems during high school.

ap-computer-science ap-computer-science-a competitive-programming cryptography ctf ctf-solutions ctf-writeups eclipse gui java reverse-engineering

Last synced: 10 Oct 2025

https://github.com/blester125/kasiski_examination

Kasiski Examination written to break a Vigenere Cipher for CS 1653 includes a C Red-Black tree impelmenatation

cryptography kasiski-examination red-black-tree

Last synced: 21 Jan 2026

https://github.com/bahanix/chatchan

End-to-end encrypted chat in your browser

chat cryptography end-to-end web-app

Last synced: 13 Oct 2025

https://github.com/th0rgal/cryptohack

What I use for cryptohack

cryptography maths

Last synced: 14 Oct 2025

https://github.com/pushpendra-1697/wedsurf

This React onboarding project includes pages for login, signup, home, and profile functionalities, catering to user authentication and navigation, facilitating a seamless design experience. The user will be blocked for the next 24 hours after putting 5 times wrong password at the time of token-based login.

axios bcrypt chakra-ui cryptography expressjs jsonwebtoken jwt-decode mongodb mongoose nodejs otp-authentication react-components react-hooks react-icons react-router-dom react-slideshow-image reactjs responsive-design token-based-authentication twilio

Last synced: 02 Apr 2026

https://github.com/rohith-2/cryptographic_blockchain

Simulating Blockchain with mining and peer verification

blockchain cryptography mining sha-256

Last synced: 23 Jan 2026

https://github.com/fa7ad/bad-ciphers

A collection of bad ciphers

cryptography hacktoberfest hacktoberfest2023

Last synced: 21 Jan 2026

https://github.com/jitendragangwar123/cryptography

This Repository have some basic Cryptographic Algorithms and other basic concepts which is used in Blockchain Technology.

cryptography javascript

Last synced: 07 May 2026

https://github.com/alexlaurence/psyauth

🔐A crypto protocol system that plants an authentication token inside a user's implicit memory to unconsciously learn sensitive information that is robust against torture/coercion

biometric-authentication cryptography memory-game psychology-experiments security

Last synced: 10 Oct 2025

https://github.com/harsh-ps-2003/haikyu

A Bitcoin miner simulation

bitcoin cryptography sqlite

Last synced: 25 Feb 2026

https://github.com/dualeai/hpke-http

End-to-end encryption for HTTP APIs using RFC 9180 HPKE. Drop-in middleware for FastAPI, aiohttp, and httpx.

aiohttp chacha20 cryptography e2e encryption fastapi hpke http rfc9180 sse streaming x25519

Last synced: 06 Feb 2026

https://github.com/prthd/secure-file-system

A secure multi-user file system with end-to-end encryption, HMAC-based integrity verification, and Unix-style permission control. Features bcrypt-authenticated logins, group-based collaboration, and a command-line interface for secure file operations on untrusted storage.

access-control bcrypt cli cryptography encryption fernet-encryption filesystem hmac-sha256 integrity python secure-storage security unix-permissions

Last synced: 25 Feb 2026

https://github.com/systemslibrarian/postquantum.fileformat

Draft specification for a hybrid post-quantum file encryption format. X25519+ML-KEM-1024 + Ed25519+ML-DSA-87. EXPERIMENTAL — seeking review.

cryptography dotnet draft-spec file-format hybrid-encryption post-quantum specification

Last synced: 01 Jun 2026

https://github.com/talyx/amib

Реализация криптографических алгоритмов/протоколов/схем

cryptography

Last synced: 19 Apr 2026

https://github.com/ggsmith842/crypto-hacks

CTF challenges from the Cryptohack Cryptography course.

cryptography ocaml

Last synced: 10 Feb 2026

https://github.com/tuokri/unrealscript-fcrypto

Pure UnrealScript SSL/TLS implementation and cryptography utilities based on BearSSL. Work in progress.

bearssl block-cipher cryptography decryption ecdh ecdhe encryption hkdf hmac https-client sha-1 udk ue3 unreal-engine-3 unrealscript xxtea

Last synced: 19 Mar 2026

https://github.com/machu-gwu/windtalker-project

Encrypt and decrypt text, binaries, files, and directories with a variety of cipher options.

cryptography encryption python tool

Last synced: 13 Feb 2026

https://github.com/astropilot/bigeye

A web security challenges website, a school project for my software security course

challenge cryptography ctf-platform security web

Last synced: 19 Mar 2026

https://github.com/nalinrajendran/cryptography-automata-theory

This is a simple scenario based application for string matching and cryptography in the case of a publisher, subscriber model. This demonstrates the communication between a publisher and a subscriber model using two different modes of encryption and decryption(Caesar Cipher, Bit-Flipping).

amrita-vishwa-vidyapeetham bit-flipping caesar-cipher cryptography decryption encryption login-page pub-sub publisher-subscriber

Last synced: 03 Mar 2026

https://github.com/byjohnmichael/sealed-wallet

Sealed Wallet is a set of python scripts to enable you to create and manage air-gapped crypto wallets

air-gapped-wallet arch-linux cryptocurrency cryptography security

Last synced: 15 May 2026

https://github.com/benwoo1110/cryptographyapp

Advanced converter for modern cryptography algorithms

cryptography csharp

Last synced: 31 Mar 2026

https://github.com/ntdls/ntdls.permafrost

The NetworkDLS original symmetric cipher algorithm ported to C#.

cryptography library nuget showcase

Last synced: 06 Mar 2026

https://github.com/ddebin/ssh-agent-secrets

Encrypt and decrypt secrets using an SSH agent

cli cryptography encryption-decryption ssh ssh-agent ssh-key typescript

Last synced: 02 Apr 2026

https://github.com/mamolinux/simple-pwgen

Very simple Python3-based GUI application to generate secure and random password.

cryptography debian linux-mint password-generator python3 ubuntu

Last synced: 03 Apr 2026

https://github.com/wisepythagoras/pyrin

A [fairly slow and] secure 512-bit one way cryptographic hash function.

crypto crypto-library cryptographic cryptography cryptography-library cryptography-tools cryptojs hash hash-functions sha1 sha256

Last synced: 24 Apr 2026

https://github.com/arpitgo4/bitcoin-wallet

Browser based Bitcoin wallet implementation.

bitcoin-wallet cryptocurrency cryptography react-router reactjs

Last synced: 29 Apr 2026

https://github.com/raupulus/esp8266-blockchain-tracing-with-display

Shows Real Time Price of Cryptocurrencies on several Screens. Mirror de https://gitlab.com/raupulus/esp8266-blockchain-tracing-with-display

blockchain cryptocurrency cryptography display esp8266 monitor monitoring

Last synced: 30 Apr 2026

https://github.com/reklatsmasters/is-chacha20-poly1305-supported

Check whether a chacha20-poly1305 cipher is supported by NodeJS

aead chacha20 chacha20-poly1305 cipher crypto cryptography nodejs poly1305 rfc7539

Last synced: 03 May 2026

https://github.com/niewidzialny84/cryptography-and-cryptoanalysis-lab

Studies laboratories about cryptography and cryptanalysis

cryptography python sha3 studies

Last synced: 24 Aug 2025

https://github.com/akshatamohanty/practical-blockchain

Website for practicalblockchain.org. Practical Blockchain is a meetup group in Singapore, started in 2021. We focus on talks and workshops by speakers building blockchain applications in production, learning from their research and insights.

blockchain cryptography dapps ethereum security smartcontracts solidity zkproof

Last synced: 09 May 2026

https://github.com/tbarrella/crypto-pure

Pure-Rust cryptography library

cryptography rust

Last synced: 11 Jun 2026

https://github.com/yashsahsani/kame-hameha

This project explains how to use symmetric and asymmetric cryptographic methods simultaneously.

cryptography kame-hameha malware malware-analysis psexec python python3 ransomeware red-team ssh worm

Last synced: 15 Jun 2026

https://github.com/ao3575911/dark-swan

Decentralized identity and symbolic anonymization protocol — Ed25519 signing, rotating pseudonyms, and local registry for private verifiable identities.

anonymization cryptography decentralized ed25519 identity privacy pseudonym python

Last synced: 22 Jun 2026

https://github.com/cmyers/json-record

A lightweight, zero-dependency library for creating deterministic, tamper-evident append-only logs.

cryptography hashchain integrity json ledger

Last synced: 03 Feb 2026

https://github.com/irby/secrets-sharing-tool

A C#/.NET Core API and Angular client application designed to help users securely distribute short-session one-time secrets.

cryptography security

Last synced: 21 Apr 2026

https://github.com/tatemsoft/cryptr

A simple shell utility for encrypting and decrypting files using OpenSSL.

aes-256 aes-encryption bash bash-script cryptography decryption encryption openssl shell-script

Last synced: 08 May 2026

https://github.com/mthaler/cryptography

Cryptographic algorithms implemented in Rust

cryptography rust rust-library

Last synced: 09 Apr 2025

https://github.com/platocrat/uiuc_token

The official token/cryptocurrency of The University of Illinois at Urbana-Champaign.

blockchain cryptocurrency cryptography ethereum smart-contracts solidity token truffle-framework uiuc

Last synced: 09 May 2026

https://github.com/darkzarich/local-encrypt-tool

Node.js utility for encrypting and decrypting sensitive data locally. Uses AES-256-GCM encryption with a key derived from your provided password using PBKDF2.

cryptography node nodejs

Last synced: 12 Apr 2026

https://github.com/innovativeinventor/vig-xts

An implementation of the Vigenere cipher with ciphertext stealing in Go

cryptography go golang vigenere-cipher xts

Last synced: 09 Jun 2026

https://github.com/tuokri/rs2-misc-tools-notes

Various RS2 modding related notes and code snippets.

cryptography reverse-engineering rising-storm-2-vietnam

Last synced: 18 Jan 2026

https://github.com/gatanegro/unify-theory

unifies spacetime, matter, and forces in Oscilatorry Field

com cryptography dynamic math nonlinear-dynamics novel oscillatory physics theory unified

Last synced: 15 Mar 2025

https://github.com/thomd/notes-on-cryptography

Notes on Cryptography

cryptography jupyter python

Last synced: 27 Apr 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/kamb-code/sha256-r19-preimage

Oracle-free preimage attack on 19-round reduced SHA-256 — paper, solver, and independent verifier

cryptanalysis cryptography cuda gpu hash-functions preimage-attack security-research sha256

Last synced: 27 Jun 2026

https://github.com/achnouri/ctf-challenges-write-ups

This repository is a collection of detailed write-ups for CTF challenges/machines/... that i have solved across different cybersecurity training platforms

capture-the-flag cryptography ctf ctf-challenges ctf-writeups cybersecurity hacking hacking-tools hackthebox offensive-security osint pentesting red-team reversing scanning security testing tryhackme vulnerabilities web

Last synced: 18 Feb 2026

https://github.com/krdevanshu06/steganography-app

This project is a steganography tool that allows users to hide and extract secret messages within images using Least Significant Bit (LSB) encoding. The tool provides a user-friendly Streamlit UI for seamless encoding and decoding of messages.

cryptography data-security image-processing lsb-encoding python steganography streamlit

Last synced: 18 Apr 2026

https://github.com/im-a-kookie/cryptographic-aes-server

Simple manual implementation of multithreaded HTTP server via HTTPListenerContext, implementing custom AES virtual streams to provide large files securely.

aes-encryption cryptography http-server multithreaded-server stream-processing

Last synced: 11 Oct 2025

https://github.com/mochafreddo/bcrypt-benchmark

This project is designed to benchmark the performance of bcrypt hashing at different salt rounds. It helps in determining the optimal number of rounds for hashing passwords, balancing security and performance.

authentication bcrypt benchmark cryptography hashing-algorithm nodejs nodejs-security password-hashing performance-testing security

Last synced: 12 Apr 2026

https://github.com/primefactor-io/commitment

Implementations of various Commitment Schemes

commitment-schemes cryptography cryptography-algorithms

Last synced: 15 May 2025

https://github.com/i2rys/diffiequantum

Diffie Hellman merged with HQC.

cryptography diffie-hellman hqc merge pqc

Last synced: 05 Sep 2025

https://github.com/bmoneill/enigma

Enigma machine simulator and Bombe

cipher cli cryptography enigma enigma-machine history

Last synced: 12 Oct 2025

https://github.com/abhayagiri/raho

Python module for simple symmetric encryption built on cryptography

cryptography fernet python python2 python3

Last synced: 25 Mar 2025

https://github.com/minomy13/rsa

C++ code for en- and decrypting RSA.

cryptography decoding encoding rsa

Last synced: 13 Oct 2025

https://github.com/southwinds-io/volta

An embedded, zero-dependency Go library for multi-tenant data encryption and zero-trust secret management.

cryptography encryption-decryption gdpr go golang golang-library hipaa pci-dss pii secret-management

Last synced: 01 Jul 2025

https://github.com/kevin-doolaeghe/se2a4_s8_tim

SE2A4 | Semestre n°8 - TP TIM

cryptography school-project

Last synced: 23 Feb 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/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/oxarbitrage/sinsemilla

Sinsemilla hash function haskell implementation

crypto cryptography hash-function sinsemilla

Last synced: 05 Feb 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/scttnlsn/cryptopals

Cryptopals in Rust

cryptography cryptopals

Last synced: 07 Apr 2025

https://github.com/athanclark/purescript-sjcl

Bindings to the Stanford JavaScript Crypto Library

browser cryptography purescript sjcl

Last synced: 24 Jan 2026

https://github.com/harmin-parra/x509-wrapper

Wrapper for the pyca/cryptography package to query attributes of X509 cryptographic objects in a fast and simple way

cryptography python python3 x509

Last synced: 12 Jun 2025

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/bkawk/aes-256-cbc-pbkdf2-30k

Polymer2 Web Component for encrypting and decrypting a mnemonic to the CBC encryption mode of AES

aes-cbc cryptography pbkdf2 polymer2

Last synced: 24 Jan 2026

https://github.com/nico-curti/cryptosocket

TCP/IP Client Server with RSA cryptography

cryptography rsa socket

Last synced: 14 Nov 2025

https://github.com/paulshpilsher/genrsa

RSA keys generator written in Go

cryptography go pem publickey rsa

Last synced: 03 Nov 2025

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/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/wissensalt/butop

Cryptography File Application

cryptography swing-gui

Last synced: 12 Jan 2026

https://github.com/nogipx/licensify

Secure license management for Dart/Flutter with ECDSA signatures, configurable encryption, and cross-platform support.

cryptography dart dartlang digital-signature ecdsa library license license-management licensing-library software-licensing

Last synced: 16 Apr 2025

https://github.com/kcbojanowski/cryptographyappproject

App that helps you deal with classical algorithms of cryptography as well as RSA algorithm and Shamir's Secret Sharing Scheme.

cryptography python3

Last synced: 16 Mar 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 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 176 Papers 173 Tutorials 158 Resources 155 Research papers and publications 141 Uncategorized 129 2018 106 MEV 96 Tools 95 Blockchain Explorers 94 Blockchain Playgrounds 83 Learning Resources 75 Misc 74 Research Groups 72 Blockchains 68