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/phantom0004/krypt0s-ransomware_poc

KRYPTOS is a sophisticated Python-based ransomware proof of concept (POC) designed for educational purposes. It encrypts files on Windows machines, focusing on persistence and stealth. Additionally, it includes a fake ransomware screen resembling WannaCry, with all information being fictional.

aes cryptography educational encyrption learning malware poc prevention proof-of-concept python ransomware ransomware-builder simulation stealth teaching testing virtual windows windows-10 windows-11

Last synced: 27 Oct 2025

https://github.com/cristinemirror/zyra-crypto-wallet-mnemonic-seed-phrase-balance-checker

This repository features Zyra, a crypto wallet tool that includes functionality for checking balances using mnemonic seed phrases. It allows you to securely manage and verify cryptocurrency balances associated with various wallets.

balance balance-checker bip39 bitecoin blockchain cold-wallet crypto crypto-wallet cryptography ethereum hardware-wallet keypair mnemonic mnemonic-phrase seed seed-phrase wallet wallet-checker

Last synced: 24 Oct 2025

https://github.com/fcasal/CryptoUtils.jl

Cryptography and number-theory primitives in Julia

continued-fractions cryptography julia number-theory prime-numbers

Last synced: 06 Apr 2026

https://github.com/demining/milk-sad-vulnerability-in-the-libbitcoin-explorer-3.x

Milk Sad vulnerability in the Libbitcoin Explorer 3.x library, how the theft of $900,000 from Bitcoin Wallet (BTC) users was carried out

bitcoin bitcoin-wallet blockchain-explorer cryptocurrency cryptography hacker hacking libbitcoin mersenne-twister prng vulnerability

Last synced: 11 Jul 2025

https://github.com/demining/lattice-attack-249bits

LATTICE ATTACK 249bits we solve the problem of hidden numbers using 79 signatures ECDSA

attack attacker bitcoin cryptocurrency cryptography ecdsa ecdsa-cryptography ecdsa-signature hack hacking lattice lattice-attack

Last synced: 10 Sep 2025

https://github.com/armortal/webcrypto-go

An implementation of the W3C Web Cryptography API specification for Go.

crypto cryptography go golang webcrypto webcrypto-api webcryptography-api

Last synced: 23 Jun 2025

https://github.com/renaud1239/kreyvium

Reference code of the KREYVIUM algorithm, a FHE-friendly 128-bit key stream cipher.

cryptography stream-cipher

Last synced: 12 Sep 2025

https://github.com/rarimo/tss-svc

Threshold signature producer service that performs signing of cross chain operations

cryptography ecdsa go threshold-signature

Last synced: 10 Apr 2025

https://github.com/python273/pwngrid-api

Pwnagotchi's Pwngrid API client (⌐■_■)

cryptography pwnagotchi python

Last synced: 07 May 2025

https://github.com/ispique/data-converter

A Python script that includes various functions for data conversion, encoding, and decoding, as well as cryptographic operations such as RSA, AES, and Triple DES encryption and decryption.

3des aes aes-encryption ascii base58 base64 binary cryptography cryptography-algorithms data-converter hexadecimal offset python python-script rot13 rot13-cipher rsa rsa-cryptography string-converter triple-des

Last synced: 13 Apr 2025

https://github.com/dufkan/JCEd25519

JavaCard implementation of Ed25519 signature algorithm for smartcards that do not support EdDSA algorithm introduced in JavaCard API version 3.1.

cryptography ed25519 javacard

Last synced: 16 Mar 2025

https://github.com/martinpaljak/cdoc

Command line utility for encrypting and decrypting CDOC files (DigiDoc Crypto alternative)

cdoc cli cryptography java smartcard utility

Last synced: 14 Apr 2025

https://github.com/chksum-rs/lib

An implementation of various hash functions with a straightforward interface for computing digests of bytes, files, directories, and more.

cryptography digest hash rust rust-crate

Last synced: 08 Apr 2026

https://github.com/beritani/ring-signatures

Pure TypeScript Ring Signatures

cryptography elliptic-curves ring-signatures

Last synced: 27 Jun 2025

https://github.com/sop/crypto-util

A PHP library of various utilities for cryptographic applications.

cryptography elliptic-curves pbkdf1 pbkdf2 pem private-key public-key rsa

Last synced: 11 Jan 2026

https://github.com/cgaebel/lifecrypt

Store a root of trust for your life.

backup cryptography

Last synced: 20 Jul 2025

https://github.com/astro-gram/password-manager

This is a secure password manager written in Python. 🔥🔥

cryptography encryption password-manager python

Last synced: 24 Sep 2025

https://github.com/chetanxpro/public-key-cryptography

This is a basic project to show how public key cryptography work By using Elliptic Curve Digital Signatures

cryptography ecdsa-cryptography ethereum

Last synced: 12 Apr 2025

https://github.com/ellipticsecure/ehsm-rust

Rust integration library for the eHSM and MIRkey Hardware Security Modules

bip32 bitcoin cryptography hsm pkcs11 rust-bindings

Last synced: 22 Aug 2025

https://github.com/jsign/merlin

Composable proof transcripts for public-coin arguments of knowledge

cryptography fiat-shamir transcript zero-knowledge

Last synced: 18 Mar 2025

https://github.com/rumkin/crypto-stamp

🖋 Web-ready signature format and library

crypto-stamp cryptography javascript signatures website

Last synced: 27 Jul 2025

https://github.com/aigptcode/secure-note-blockchain

یک برنامه یادداشت امن که از رمزنگاری امن برای حفاظت از یادداشت‌های شما و سیستم بلاک چین که نوت ها به صورت بلاک سیو و استفاده می‌کند

api blockchain cryptography hack note notes py python secure secure-note web3

Last synced: 19 Mar 2025

https://github.com/jsign/sumhash

sumhash512 cryptographic function implementation

algorand cryptography hash rust

Last synced: 18 Mar 2025

https://github.com/berdav/okx-passphrase-restorer

Retrieve OKX 12 words passphrase from a backup of the wallet files and the password.

cryptocurrency cryptography okx wallet

Last synced: 10 Apr 2025

https://github.com/arxiver/rsam

Modified package for RSA encryption/decryption to allow large message encryption/decryption, to allow encryption through private key and decryption through public key and signature through public key and private key and vice versa. i.e. Additional functionalities to the existing crypto package https://pkg.go.dev/github.com/gossl/rsam

crypto cryptography go go-package golang gopher package rsa rsa-algorithm rsa-encryption rsa-key-encryption rsa-key-pair

Last synced: 24 Jul 2025

https://github.com/nexckycort/rijndael-nodejs

Implementation of the rijndael encryption algorithm.🛡️

cryptography nodejs typescript webpack

Last synced: 28 Oct 2025

https://github.com/nishnash54/twostepencryption

Applying Steganography followed by Visual Cryptography Encode and Decode data

cryptography python3 steganography visual-cryptography

Last synced: 15 Aug 2025

https://github.com/guilt/groupenc

Group Encryption utilities in Python, with a CLI.

bootstrap cryptography encryption group privacy self-hosted vault

Last synced: 21 Jul 2025

https://github.com/roastercode/cryptosteg

Encrypt / Decrypt your files securely from command line to a picture

cryptography steganography

Last synced: 11 Jun 2026

https://github.com/alexadamm/jwt-vault-go

JWT implementation with HashiCorp Vault's signature

cryptography go golang jwks jwt microservices vault

Last synced: 12 Jan 2026

https://github.com/rednblkx/dash_live_decrypt_proxy

A Simple DRM(CENC) decrypting script for DASH manifests of "dynamic" type

cryptography dash drm ffmpeg mp4 proxy video

Last synced: 10 Jul 2025

https://github.com/animeshshaw/psychohasher

A Java based utility for data or file hash generation.

cryptography dfir forensics gradle hashing java

Last synced: 20 Sep 2025

https://github.com/sc0vu/js-secp256k1

Compiled webassembly of bitcoin secp256k1

bitcoin cryptography elliptic secp256k1 wasm webassembly

Last synced: 13 Apr 2025

https://github.com/happenslol/xkcdpass

Secure random password generation library in go. Inspired by https://xkcd.com/936/

cryptography generator password random xkcd

Last synced: 18 Jun 2026

https://github.com/retr0kr0dy/cryptsis

CryptSIS is an encryptor/decryptor working with different Cipher depending on the version.

cryptography encryption-decryption

Last synced: 18 Feb 2026

https://github.com/alexaubry/crypto

Swift wrapper for CommonCrypto

commoncrypto cryptography swift

Last synced: 30 Jul 2025

https://github.com/siyovush-hamidov/hamming-codes-8-4

🔐 This project implements the Hamming Code 8-to-4 algorithm for error detection and correction during information transmission, capable of handling one mistake

cpp cryptography

Last synced: 14 Apr 2025

https://github.com/chrisamanse/Codegen

An open source one-time password generator for iOS.

authentication authenticator cryptography generator hmac ios one-time-passwords qrcode security swift

Last synced: 22 Jul 2025

https://github.com/myl7/vdmpf

Verifiable distributed multi-point function (DMPF) implementation

cryptography dmpf dpf fss

Last synced: 15 May 2025

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

Library in the JVM for secure data storage with trusted third-parties

cryptography data-masking scala-library signing-trusted storage-api

Last synced: 10 Apr 2025

https://github.com/cosmian/cloudproof_js

The JavaScript/Typescript API library to Cosmian Cloudproof Encryption

cloud cloudproof cryptography java

Last synced: 09 Jul 2025

https://github.com/marcogarlet/crypto

A collection of cryptographic algorithms (even attacks) created during Cryptography classes.

algorithm cryptography

Last synced: 21 Jun 2025

https://github.com/paepckehh/tlsinfo

Tool to analyze and troubleshoot TLS connections (app/lib/api)

analyzer certificate certificates command-line crypto cryptography ecdsa ed25519 go infosec infosectools pki rsa ssl terminal tls tls13 x509

Last synced: 01 Apr 2026

https://github.com/roginvs/cryptopoll

Secure crypto voting application

cryptography monero voting voting-application

Last synced: 14 Jun 2025

https://github.com/cmdruid/frost

Flexible, round-optimized threshold signature library for BIP340 taproot.

bitcoin cryptography frost threshold

Last synced: 20 Sep 2025

https://github.com/jwerle/libhypercore-crypto

A C99 library for various cryptographic functions used in Hypercore.

c crypto cryptography hypercore

Last synced: 28 Mar 2025

https://github.com/alexaubry/Crypto

Swift wrapper for CommonCrypto

commoncrypto cryptography swift

Last synced: 21 Jul 2025

https://github.com/serviejs/keysign

Data signing and verification for rotating credentials and algorithms

cryptography data-integrity hmac hmac-sha256 sign

Last synced: 19 Jul 2025

https://github.com/coderserdar/csharphelpermethods

Bu çeşitli veri türleri ile ilgili olarak faydalı metotların kullanımı ile ilgili olarak hazırlanmış basit bir Windows Form uygulamasıdır

c-sharp cryptography datetime helpful numerical-methods string windows-forms

Last synced: 26 Jul 2025

https://github.com/star10pro/electron-executor

Electron-Executor is a powerful tool for executing commands directly from an Electron application. It provides a seamless way to interact with the underlying operating system for enhanced functionality.

cryptography cybersecurity electron electron-app encryption gpg gpt javascript llm mobile nodejs offline pgp privacy

Last synced: 29 Jul 2025

https://github.com/gibbed/gibbed.xxtea

C#/.NET implementation of XXTEA.

block-cipher cryptography xxtea

Last synced: 29 Jul 2025

https://github.com/xeroxxhah/l0ck

Ransomeware written in python

cryptography cryptolocker ransomware

Last synced: 21 Jun 2025

https://github.com/isan-rivkin/lamport-signatures-rs

Lamport one-time signature scheme in Rust

cryptography lamport-signature quantum-computing

Last synced: 04 Oct 2025

https://github.com/10d9e/paillier.sol

Paillier homomorphic cryptosystem in Solidity

cryptography paillier-cryptosystem solidity

Last synced: 12 Apr 2025

https://github.com/crowdcompute/crowdengine

Peer-to-Peer compute engine implementation

blockchain crypto cryptocurrency cryptography ethereum peer-to-peer

Last synced: 12 Jan 2026

https://github.com/jonasalfredsson/docker-on-tmpfs

GitHub Action that mounts a tmpfs volume on /var/lib/docker/.

386 armv7 cryptography docker getdents64 github-actions hacktoberfest qemu readdir tmpfs

Last synced: 11 May 2025

https://github.com/dracoon/dracoon-csharp-crypto-sdk

Official DRACOON Crypto SDK for C#

crypto cryptography csharp dracoon sdk

Last synced: 27 Jun 2025

https://github.com/devgeeks/echidna.js

Crypton is dead, long live Echidna.js

crypto cryptography echidna pouchdb tweetnacl

Last synced: 05 Apr 2025

https://github.com/bardiakz/oqs

oqs - A Dart FFI wrapper for liboqs, delivering post-quantum cryptographic algorithms. Supports NIST-standardized KEMs (e.g., ML-KEM) and signatures (e.g., ML-DSA), optimized for Flutter and cross-platform applications (Android, iOS, Linux, macOS, Windows). MIT Licensed.

cryptography dart ffi flutter kem kyber liboqs ml-dsa ml-kem oqs pqc quantom-cryptography

Last synced: 19 Feb 2026

https://github.com/msokoloff1/adversarial-neural-cryptography

Explores adversarial networks for cryptography

artificial-intelligence cryptography neural-network

Last synced: 17 Jun 2025

https://github.com/virgilsecurity/virgil-cryptowrapper-x

Virgil Crypto library is a small, flexible and convenient wrapper for a variety of cryptographic algorithms. Includes asymmetric key generation, encryption/decryption of data, generation/verification of digital signatures, Pythia protocol and Double Ratchet protocol implementation.

cryptography doubleratchet encryption pythia ratchet

Last synced: 09 May 2025

https://github.com/virgilsecurity/virgil-pythia-node

Virgil Pythia SDK allows developers to implement Pythia protocol to create breach-proof passwords, immune to offline and online attacks.

breach-proof-password cryptography encryption nodejs pythia pythia-sdk sdk virgil-pythia

Last synced: 09 May 2025

https://github.com/diplomatiq/crypto-random

TypeScript library for generating cryptographically strong, uniformly distributed random integers from custom intervals, strings from custom character sets, and boolean values.

cryptography javascript javascript-library random-bytes random-generation random-int random-string secure-random-generator typescript

Last synced: 29 Jul 2025

https://github.com/rsarky/og-rsa

An RSA implementation in pure Rust

cryptography rsa rust

Last synced: 26 Jul 2025

https://github.com/virgilsecurity/virgil-keyknox-x

KeyKnox SDK allows developers to communicate with Virgil Keyknox Service to upload, download, and synchronize encrypted sensitive data (private keys) between different devices.

cryptography keyknox keypair sdk

Last synced: 09 May 2025

https://github.com/virgilsecurity/virgil-purekit-net

PureKit SDK allows developers to protect users' passwords and sensitive personal information in a database from data breaches and both online and offline attacks and make stolen passwords useless even if a database is breached.

cryptography encryption gdpr hipaa passw0rd password password-hardened-encryption phe pii piidata sdk

Last synced: 09 May 2025

https://github.com/hugow04/vpn

VPN (Virtual private network) for MacOS and Linux

cryptography tcp udp virtual-private-network vpn vpn-client vpn-server

Last synced: 22 Jul 2025

https://github.com/jonhoo/go-crypto-examples

Example code for performing various higher-level operations using the Go crypto primitives

cryptography examples golang

Last synced: 11 Oct 2025

https://github.com/exonum/pwbox

Password-based encryption for Node and browsers

crypto cryptography encryption libsodium pwhash scrypt

Last synced: 26 Apr 2025

https://github.com/zhaohaijun/blockchain-crypto

Crypto for BlockChain

blockchain cryptography sm2 vrf

Last synced: 12 Mar 2026

https://github.com/greycloudss/sabaton

Sabaton is a WIP offline password cracker and wordlist engine in C. It generates exhaustive keyspaces and evaluates them against mainstream hash functions via a simple API. Built for air-gapped environments and high-throughput use, with a roadmap including CLI, multithreading, streaming mode, and GPU acceleration.

armourer c cracking cryptography security

Last synced: 07 Oct 2025

https://github.com/armfazh/qdsa-space17

[New Optimized] This is an optimized C-language library of the qDSA digital signature scheme instantiated with Curve25519.

cryptography curve25519 digital-signature high-performance montgomery-ladder public-key-cryptography qdsa x64

Last synced: 30 Mar 2025

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

Docker container with utilities to compute hashes (CRC32, MD5, SHA-1, SHA-256, SHA-512, Argon2...).

argon2 checksum crc32 cryptography docker docker-container docker-image dockerfile hash hmac md5 message-digest sha-1 sha-256 sha-512 sha1 sha256

Last synced: 19 Apr 2025