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: 2026-06-30 00:07:03 UTC
- JSON Representation
https://github.com/roastercode/cryptosteg
Encrypt / Decrypt your files securely from command line to a picture
Last synced: 11 Jun 2026
https://github.com/vijayshinva/kryptos
A .NET core tool for cryptography.
base64url cryptographic-hash cryptography cryptography-tools dotnet dotnet-core global-tool hash hmac jwt md5 oid pfx self-signed-certificate subresource-integrity
Last synced: 10 Apr 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
Last synced: 14 Apr 2025
https://github.com/nickray/pkcs11-uri
PKCS #11 URI parser
cryptography cryptoki hsm pkcs11 signatures
Last synced: 28 Jun 2025
https://github.com/demining/parsing-blockchain-in-google-drive
How to Parse Blockchain Transactions to a Google Drive Folder
attack bitcoin blockchain cryptocurrencies cryptography ecdsa ecdsa-cryptography ecdsa-signature elliptic-curves elliptic-curves-cryptography google-api google-cloud google-drive privatekey secp256k1 vulnerabilities vulnerability
Last synced: 03 May 2025
https://github.com/demining/break-ecdsa-cryptography
The very first serious vulnerability in Blockchain and how to get the public key Bitcoin ECDSA RSZ value from the RawTX file
attack bitcoin bitcoin-transaction bitcoin-wallet blockchain btc btc-wallet coin cryptocurrencies cryptography ecdsa ecdsa-cryptography ecdsa-signature elliptic-curves elliptic-curves-cryptography privatekey secp256k1 vulnerabilities vulnerability
Last synced: 03 May 2025
https://github.com/jiep/generic-anon-ake
Implementation of Generic Anonymous AKE
ake cryptography dilithium kyber liboqs post-quantum post-quantum-cryptography post-quantum-kem rust signature
Last synced: 09 May 2025
https://github.com/alexaubry/crypto
Swift wrapper for CommonCrypto
commoncrypto cryptography swift
Last synced: 30 Jul 2025
https://github.com/roginvs/cryptopoll
Secure crypto voting application
cryptography monero voting voting-application
Last synced: 14 Jun 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/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/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/dufkan/JCEd25519
JavaCard implementation of Ed25519 signature algorithm for smartcards that do not support EdDSA algorithm introduced in JavaCard API version 3.1.
Last synced: 16 Mar 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-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/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/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/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/rafael-santiago/kryptos
A multiplatform easy to embed crypto library.
blake3 crypto cryptography cryptography-library embedded-c freebsd freebsd-kld internal-dsl kernel-module linux linux-kernel-module minix netbsd netbsd-kernel-module netbsd-kmod openbsd solaris suckless-implementations windows windows-kernel
Last synced: 30 Oct 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/megyssstaa/kantanj
A handy general-purpose Java library.
cryptography currency currency-conversion currency-converter formatter formatting general-purpose geolocation geolocation-api ip ip-api ip-info ipapi ipinfo java library maven networking system wrapper
Last synced: 29 Jul 2025
https://github.com/wioniqle-q/acl-lib
Cross-platform file encryption library built with .NET 9
aes-gcm argon argon2 argon2id avaloniaui c-sharp chacha20-poly1305 chachapoly cross-platform cryptography dotnet encryption file-encryption libsodium privacy secure-storage security sha3-512 storage xchacha20poly1305
Last synced: 29 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/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/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/python273/pwngrid-api
Pwnagotchi's Pwngrid API client (⌐■_■)
cryptography pwnagotchi python
Last synced: 07 May 2025
https://github.com/gibbed/gibbed.xxtea
C#/.NET implementation of XXTEA.
block-cipher cryptography xxtea
Last synced: 29 Jul 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/jonatandb/python-flask-js-postgresql-crud
Python Flask + JS + PostgreSQL - CRUD
backend-api bootswatch crud crud-api crud-application cryptography flask flask-api heroku javascript jonatandb postgres postgresql python rest web
Last synced: 30 Apr 2025
https://github.com/christopher-besch/cryptography
Cryptography Cracking Tool.
ciphers cryptography cut decryption delimiters encrypted-numbers xor
Last synced: 12 Aug 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/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/ahdinosaur/secret-channel
🤫 A protocol for an authenticated and encrypted message stream
aead authenticated authenticated-encryption chacha20-poly1305 chacha20poly1305 crypto cryptography encryption scuttlebutt secure-scuttlebutt ssb stream streaming
Last synced: 20 Sep 2025
https://github.com/fckveza/vhtearcryptoutil
VHtearCryptoutil
aes-encryption aes-gcm bytecode cryptography encryption-decryption hashing
Last synced: 25 Jul 2025
https://github.com/ivan-tymoshenko/rust-salsa20
Fast implementation of salsa20 in safe rust
cipher crypto cryptography encrypt estream generate generator performance rust salsa20 stream stream-cipher
Last synced: 16 Jun 2025
https://github.com/stackoverflowexcept1on/frost-secp256k1-evm
Cheap threshold signature scheme for EVM
cryptography elliptic-curves schnorr schnorr-signatures solidity threshold-cryptography threshold-signature
Last synced: 06 Mar 2026
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/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/animeshshaw/psychohasher
A Java based utility for data or file hash generation.
cryptography dfir forensics gradle hashing java
Last synced: 28 Jun 2026
https://github.com/beritani/ring-signatures
Pure TypeScript Ring Signatures
cryptography elliptic-curves ring-signatures
Last synced: 27 Jun 2025
https://github.com/daira/scaling
Amsterdam scaling presentation
cryptocurrency cryptography mix-net privacy privacy-enhancing-technologies research-project scalability sharding slides zcash zk-snarks
Last synced: 08 Jan 2026
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/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/n1ghtf1re/digital-signature
Digital signature using RSA algorithm
cryptography digital-signature digital-signatures rsa rsa-algorithm rsa-signature sha1 sha1-hash sha256 sha256-hash
Last synced: 05 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/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/nexckycort/rijndael-nodejs
Implementation of the rijndael encryption algorithm.🛡️
cryptography nodejs typescript webpack
Last synced: 28 Oct 2025
https://github.com/jsign/sumhash
sumhash512 cryptographic function implementation
algorand cryptography hash rust
Last synced: 18 Mar 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/rumkin/crypto-stamp
🖋 Web-ready signature format and library
crypto-stamp cryptography javascript signatures website
Last synced: 27 Jul 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/xeroxxhah/l0ck
Ransomeware written in python
cryptography cryptolocker ransomware
Last synced: 21 Jun 2025
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/sc0vu/js-secp256k1
Compiled webassembly of bitcoin secp256k1
bitcoin cryptography elliptic secp256k1 wasm webassembly
Last synced: 13 Apr 2025
https://github.com/marcogarlet/crypto
A collection of cryptographic algorithms (even attacks) created during Cryptography classes.
Last synced: 21 Jun 2025
https://github.com/myl7/vdmpf
Verifiable distributed multi-point function (DMPF) implementation
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/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/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/cyrildever/go-utls
Utilities for Go
bip32 cryptography ecies-geth empreinte-sociometrique golang utilities-library
Last synced: 10 Apr 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/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/cheran-senthil/bitcoin-keygen
₿ Bitcoin Utility Functions
bitcoin blockchain cryptocurrency cryptography keygen python script
Last synced: 14 Apr 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/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/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/rggh/blockchain
Blockchain Tutorials : Bitcoin, Ethereum
bitcoin cryptography glassnode jupyter matplotlib python smart-contracts spent-output-profit-ratio
Last synced: 28 Apr 2026
https://github.com/rayniel95/rainyelcert-node
The node of RainyelLedger, permissioned blockchain created using Substrate. RainyelLedger is a rebranding of RainyelCert-Node :)
blockchain cryptography distributed-systems ink permissioned-blockchain polkadot rust smart-contracts substrate
Last synced: 26 Feb 2026
https://github.com/raphaelrrcoelho/commitment-scheme
In cryptography, a commitment scheme allows one to commit to a chosen value (or chosen statement) while keeping it hidden to others, with the ability to reveal the committed value later. Commitment schemes are designed so that a party cannot change the value or statement after they have committed to it: that is, commitment schemes are binding.
Last synced: 09 Jun 2026
https://github.com/vatshayan/github-internship
Internship available for Everyone on Machine Learning, Cryptography, Data science, IOT, Security and Web Development
c cryptocurrency cryptography datascience internship internship-report internships internships-offers machine-learning machine-learning-algorithms python startup-internships webdevelopment
Last synced: 03 May 2026
https://github.com/nuxed/crypto
The Nuxed Crypto component provides a high-level cryptography interface that relies on libsodium for all of its underlying cryptography operations.
argon2 authentication constant-time cryptography cryptography-library curve25519 digital-signature ed25519 encryption hack hacklang hhvm libsodium misuse-resistant nuxed password-hashing poly1305 x25519 xsalsa20
Last synced: 30 Jan 2026
https://github.com/wahidpanda/encryption-decryption-quantum-computing-project
This is capstone project for my Quantum Computing by Qubit by Qubit. In this project I made a web-application where I can encrypt a message a decrypt a message with Qkd. It's a secure platform for future Quantum Cryptography
capstone-project cryptography crytpocurrency cybersecurity encryption-algorithms encryption-decryption encryption-tool machine-learning open-source opencv project python quantum-computing streamlit
Last synced: 20 Apr 2026
https://github.com/jedisct1/strange
A really tiny asymmetric crypto library.
Last synced: 15 Feb 2026
https://github.com/lissarubi/multi-crypto
NPM module to Encode and Decode texts.
ciphers crypto cryptography decoder encoder javascript node node-module nodejs npm npm-moduke npm-package security
Last synced: 12 Feb 2026
https://github.com/alexanderbkl/btcwalletcapture
A small script in nodejs that captures wallets from a range of trivial binary private keys
bitcoin btc btcwhales crypto cryptocurrency cryptography ellipse elliptic-curves ens ethereum generation privatekey scp256k wallet walletcapture walletgeneration
Last synced: 08 Feb 2026
https://github.com/jtdowney/acumen
Gleam library for interacting with Automatic Certificate Management Environment (ACME) servers like Let's Encrypt
acme cryptography gleam letsencrypt
Last synced: 11 May 2026
https://github.com/micromaomao/go-ecbpass
A tool to generate pseudorandom, deterministic passwords.
cryptography password password-generator password-manager
Last synced: 10 Feb 2026
https://github.com/drilonaliu/cryptography
A cryptography package with simplifed versions of AES and SHA-1, RSA, HMAC; featuring attacks, block ciphers and digital signature schemes.
aes attacks block-ciphers cryptography encryption hash rsa sha-1
Last synced: 13 Feb 2026
https://github.com/randa-mu/dcipher
dcipher is a modular protocol for threshold cryptography
bls bls12-381 bn254 crosschain cryptography dkg drand encryption ibe onlyswaps threshold timelock
Last synced: 04 Mar 2026
https://github.com/donpablonows/coin
🪙 Crypto Optimization Interface Network (aka COIN) is a high-performance Bitcoin address generator using CUDA acceleration and multi-threading. It optimizes GPU and CPU resources for fast address generation, ensures secure private key creation, and includes real-time monitoring and automatic system optimizations.
bitcoin blockchain cryptography cuda gpu-acceleration
Last synced: 07 May 2026
https://github.com/demining/crypto-wallet-protection
How to protect your money in Bitcoin and Ethereum cryptocurrencies in the face of the rapid growth of fake crypto wallets
bitcoin bitcoin-wallet cryptocurrencies cryptocurrency cryptography ethereum ethereum-wallet fake-data hack hacking protection protection-ring protection-scheme vulnerability
Last synced: 09 May 2026
https://github.com/invariant-systems-ai/aiir
AI Integrity Receipts — generate, verify, and attest cryptographic receipts for commits with declared AI involvement. Release verification with SLSA-compatible VSA. Zero dependencies. Apache 2.0.
ai attestation audit compliance copilot cryptography eu-ai-act git github-actions in-toto mcp receipts security slsa supply-chain-security verification
Last synced: 17 Apr 2026
https://github.com/uverify-io/uverify-ui
UVerify makes blockchain technology accessible to everyone, regardless of prior experience. Effortlessly secure your file or text hashes on the Cardano blockchain.
cardano cryptography notarytool react tailwindcss
Last synced: 09 May 2026
https://github.com/onlyphantom/blockchain
Interactive workbook on core blockchain concepts
blockchain blockchain-demos cryptography cryptography-algorithms cryptography-library cryptojs react tutorial
Last synced: 04 Mar 2026
https://github.com/ericlagergren/rocca
Rocca: An Efficient AES-based Encryption Scheme for Beyond 5G - https://eprint.iacr.org/2022/116.pdf
Last synced: 07 Feb 2026
https://github.com/coderatul/caesar-cipher
caeser cipher using python
ceaser-cipher cryptography encryption good-first-issue hacktoberfest
Last synced: 10 Feb 2026
https://github.com/vishesh-gupta/cryptology
Container for multiple Cryptography algorithms, ciphers and techniques
cryptography hashing-algorithm rsa-key-encryption secure-hash-algorithm
Last synced: 09 Feb 2026
https://github.com/aarambh-darshan/mini-blockchain
A robust, full-stack blockchain engine built in Rust. Features a custom VM for smart contracts with real gas economics, Proof-of-Work consensus, UTXO transactions, multisig wallets, and a real-time SvelteKit block explorer.
blockchain cryptography defi distributed-systems p2p proof-of-work rust smart-contracts sveltekit utxo vm web3
Last synced: 10 Feb 2026
https://github.com/yodalightsabr/2password
2Password: A cryptography experiment
aes-256 cryptography experimental password-manager
Last synced: 10 Feb 2026
https://github.com/ktauchathuranga/inline-cryptography-toolkit
A Visual Studio Code extention for encrypt, decrypt, and hash text Inline.
cryptography encryption-decryption hashing vscode-extension
Last synced: 13 Feb 2026
https://github.com/sgiath/secp256k1
Elixir wrapper for Bitcoin Core secp256k1 library
bitcoin cryptography elixir secp256k1
Last synced: 01 Feb 2026
https://github.com/lucadibello/virtualsafe
🔒 Crypt your directories and make your files completely unreadable!
cryptography fernet privacy-tools python security security-tool
Last synced: 06 Jun 2026
https://github.com/pieroboseta/piero-ende-coder
A powerful encryption and decryption tool that combines the Vigenère cipher, XOR encryption, and Base64 encoding to secure messages. This tool allows users to encode and decode messages using a secret key, ensuring an extra layer of security.
algorithm base64 cipher cpp cryptography data-conversion data-encoding decoder decryption encoder encryption hashing string-manipulation text-processing
Last synced: 26 Feb 2026
https://github.com/adamo08/encryption-decryption
This repository contains implementations of various encryption and decryption algorithms in Python. The goal is to provide simple and easy-to-understand code for educational and practical purposes.
affine-cipher algorithms caesar-cipher cryptography decryption des-cipher encryption hill-cipher python security vigenere-cipher
Last synced: 11 Feb 2026
https://github.com/ornella-gigante/cryptosafe
A simple Java application for encrypting and decrypting messages and files using DES and RSA algorithms, featuring a user-friendly menu interface. Perfect for learning about cryptography and secure file handling.
assymetric-encryption assymetric-key-cryptography asymmetric-cryptography cipher-algorithms cryptography decipher des java java-8 rsa-cryptography
Last synced: 13 Feb 2026
