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: 2026-06-23 00:06:53 UTC
- JSON Representation
https://github.com/sgiath/secp256k1
Elixir wrapper for Bitcoin Core secp256k1 library
bitcoin cryptography elixir secp256k1
Last synced: 01 Feb 2026
https://github.com/lyang/gpg-utils
Simple Wrapper for shelling out to gpg
cryptography gnupg gpg java processbuilder
Last synced: 01 Feb 2026
https://github.com/prajwalg12121998/avalanche-effect-in-des-and-triple-des
This is a coding assignment as part of Computer Security subject. It does analysis of Avalanche Effect in DES and Triple DES
avalanche-effect blockcipher cryptography des des3
Last synced: 17 Jun 2026
https://github.com/xu-cheng/pbc-bindings
:electric_plug: Bindings for Pairing-Based Cryptography (libpbc)
bindings cplusplus cplusplus-14 cryptography pbc python ruby swig
Last synced: 18 Apr 2026
https://github.com/youben11/psi
Playing with different Private Set Intersection protocols
cryptography privacy-preserving psi
Last synced: 25 Apr 2026
https://github.com/powershelllibrary/crypto.aes
PowerShell module for cryptography (RSA)
aes aes-encryption aes-gcm cryptography decryption encryption powershell powershell-module
Last synced: 04 Mar 2026
https://github.com/zozs/filecryptify
Simple file and stream encryption tool based on libsodium
Last synced: 12 Feb 2026
https://github.com/timebertt/grypto
Understanding cryptographic algorithms by implementing them in Go :mortar_board:
cryptography golang learning-by-doing learning-exercise
Last synced: 08 Jun 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/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/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
https://github.com/virgilsecurity/virgil-ratchet-kotlin
Virgil Security Ratchet SDK provides an implementation of the Double Ratchet algorithm, which is used by parties to exchange encrypted messages based on a shared secret key.
cryptography doubleratchet encryption perfect-forward-secrecy pfs ratchet
Last synced: 13 Feb 2026
https://github.com/iamnotstatic/wallet-manager
This is for managing crypto addresses and generation
bitcoin blockchain cryptocurrency cryptography ethereum
Last synced: 14 Feb 2026
https://github.com/zunainaliazam/pixcrypt---image-security-suite
PixCrypt - A simple implementation of image encryption/decryption using AES Algorithm in client side JS.
aes-encryption bootstrap5 cryptography cryptojs css3 html5 js
Last synced: 30 Apr 2026
https://github.com/tynes/libsigner
manage watch only bitcoin wallets with bcoin
bcoin bitcoin cryptography ledger nodejs trezor
Last synced: 08 May 2026
https://github.com/virgilsecurity/virgil-messenger-x
A simple E2EE chat for iOS which uses Virgil Security services.
chat cryptography demo encryption end-to-end-encryption ios ios-app messenger
Last synced: 19 Jun 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/tangle-network/masp-protocol
Multi-asset shielded pool extending protocol-solidity contract system
cryptography privacy zero-knowledge
Last synced: 31 Jan 2026
https://github.com/berkekaragoz/experimental-media-platform
My coding tryouts combined in a media platform concept. Next.js, GraphQL, FaunaDB, styled-components and more...
cryptography faunadb graphql nextjs styled-components
Last synced: 02 May 2026
https://gitlab.com/hackancuba/blake2signer
Using BLAKE in keyed hashing mode to sign and verify data.
blake2 blake3 cryptography hashlib hmac python
Last synced: 15 Feb 2026
https://github.com/ishivanshgoel/securechat
End-to-end encrypted chat application using RSA algorithm. Backend: https://github.com/ishivanshgoel/securechat-app/
bootstrap cryptography css html javascript rsa-cryptography
Last synced: 08 May 2026
https://github.com/lumarans30/astralsafeclient
.NET MAUI app that encrypts and decrypts an exe file.
aes-128 anti-piracy client-side cryptography http-requests maui-app
Last synced: 18 Jun 2026
https://github.com/hicsail/oracles
Useful zero-knowledge (ZK) problems constructed from real world scenarios.
cryptography zero-knowledge-proofs
Last synced: 03 Jun 2026
https://github.com/21-dot-dev/swift-bitcoinkernel
Swift package for running a Bitcoin node
bitcoin bitcoin-core bitcoin-node bitcoind blockchain c-plus-plus consensus consensus-validation cryptocurrency cryptography full-node json-rpc libbitcoinkernel p2p regtest spm swift swift-library swift-package-manager swift6
Last synced: 23 Jun 2026
https://github.com/karakun/encrypted-filechannel
Transparent encryption for java.nio.channels.FileChannel
crypto cryptography java nio security tink
Last synced: 05 Mar 2026
https://github.com/thenaubit/crypto-password-generator
🦄 A cryptographically secure password generator!
cryptography emotionjs mantine-ui nextjs password-generator typescript
Last synced: 20 Apr 2026
https://github.com/sandeep-shaw10/py-aes
Implementation of Advance Encryption Standard (AES-128/192/256/512) using Python and Numpy
aes-128 aes-192 aes-256 aes-512 blockcipher cryptography numpy python symmetric-encryption
Last synced: 22 Aug 2025
https://github.com/arnaud-robin/shake128
Implementation of SHAKE128 in c++.
cpp cryptography fips202 shake128
Last synced: 10 Apr 2025
https://github.com/phayes/fdh-rs
Full Domain Hash library for rust
blind-signatures cryptography full-domain-hash hash
Last synced: 17 Mar 2026
https://github.com/ashubly25/cryptography
My Work consists of Diffie-Hellman-Fibonacci, Hashing and XOR Cipher
Last synced: 26 Mar 2025
https://github.com/sammyne/sm3
A Go implementation of SM3 cryptographic hash algorithm.
cryptographic-hash-functions cryptography
Last synced: 10 Apr 2025
https://github.com/hegdepavankumar/cipher-encryption-decryption
Cipher Encryption/Decryption This project is a simple implementation of the cipher encryption and decryption algorithm using JavaScript, HTML, and CSS. The cipher is a substitution cipher that replaces each letter in the plaintext with a letter a certain number of positions down the alphabet.
cipher cipher-algorithms cryptography encryption-algorithms encryption-decryption hashing-algorithm networking-concepts password security
Last synced: 03 Aug 2025
https://github.com/anmol-singh-jaggi/sha2_512
:lock_with_ink_pen: An implementation of SHA-2 hash function with a digest size of 512 bits
c-plus-plus cryptography digest hash
Last synced: 26 Mar 2025
https://github.com/bytemare/crypto
Abstracted prime-order elliptic curve groups in Go.
cryptography elliptic elliptic-curves go hash-to-curve nist p256 p384 p521 prime-order-group rfc9380 ristretto255
Last synced: 10 Apr 2025
https://github.com/0xnu/qrme
qrme is a quantum-resistant encrypted machine learning system designed to protect sensitive data and models against potential threats from quantum computing.
cryptography large-language-model large-language-models llm llms post-quantum-cryptography
Last synced: 25 Jan 2026
https://github.com/darshan-kc/python-caesar-cipher
A substitution cipher that shifts letters by a fixed number of positions
Last synced: 10 Apr 2025
https://github.com/cyrildever/crumbl-hoster
Easy hosting server for the Crumbl platform
cryptography data-masking javascript-library signing-trusted storage-api typescript-library
Last synced: 10 Apr 2025
https://github.com/cyrildever/crumbl-js
Secure data storage with trusted third-parties to use in Javascript environment
cryptography data-masking javascript-library signing-trusted storage-api typescript-library
Last synced: 26 Aug 2025
https://github.com/yangboz/bitcoin-puzzles
The place for Bitcoin related puzzles!
bitcoin cipher cipher-block-chaining cipher-crack ciphertext cryptography image-processing puzzle steganography
Last synced: 02 Apr 2025
https://github.com/littleli/paillier4j
Simple Paillier cryptosystem library
cryptography homomorphic-encryption paillier property-based-testing
Last synced: 15 May 2026
https://github.com/miraclx/libeaes-js
Enhanced simultaneous compression + encryption prototype with NodeJS
aes-ctr aes-encryption compression cryptography decrypt eaes encrypt gzip pipe stream
Last synced: 28 Oct 2025
https://github.com/battleoverflow/encrypt-it
🔐 Simple password generator offering various encryption methods.
cryptography encoding encryption python
Last synced: 15 Jun 2025
https://github.com/quyxishi/ethanium
XChaChaPoly1305-Argon2id cli, built on cryptopp & libsodium
argon2id cli cryptography windows xchacha20-poly1305
Last synced: 15 May 2026
https://github.com/lablnet/cryptographic_algorithms
My own implementation of the Cryptographic Algorithms in Python.
algorithms cryptography python
Last synced: 08 Sep 2025
https://github.com/phuc16102001/lamport-signature
The project implement the Lamport Signature which is a Digital signature. Furthermore, its weakness is spotted out by forging a signature.
blockchain cryptography digital-signature golang lamport-signature
Last synced: 15 Jan 2026
https://github.com/kernelmethod/ChaChaCiphers.jl
GPU-compatible implementations of the ChaCha stream cipher family
Last synced: 06 Apr 2026
https://github.com/JuliaCrypto/Krypto.jl
A futuristic crypto library. In Julia. [OLD]
cryptography decryption deprecated-repo ecc encryption julia pqc rlwe rsa
Last synced: 06 Apr 2026
https://github.com/isaka-james/caesar
The Linux tool to decrypt Caesar Cipher written using Rust, Very Fast Indeed
caesar- caesar-decryption cryptography linux-tool rust rust-powered
Last synced: 15 May 2026
https://github.com/mk-fg/tinydns-dynamic-dns-updater
Tool to generate and keep tinydns zone file with dynamic dns entries for remote hosts
automation cryptography djbdns dynamic-dns-entries nacl python tinydns
Last synced: 16 May 2026
https://github.com/ocdbytes/keylogger-python
Keylogger made with python including mailing and encryption services to get the user info and keylogs in a formated way.
cryptography encryption executable keylogger python3
Last synced: 19 Mar 2025
https://github.com/dstein64/lc4
An implementation of ElsieFour (Alan Kaminsky 2017).
Last synced: 20 Mar 2025
https://github.com/mbarkt3sto/mb-security-dll
A DLL library for (C#.NET ) helping you to Encrypt & Decrypt data
0x0b byte-array cryptography cryptography-library csharp csharp-library decrypt-data decryption-model dll-library dotnet dotnet-library encrypted-data encryption-operation information-security initialization-vector mb-security-dll
Last synced: 09 Jul 2025
https://github.com/cedws/ki-keyring
Utility for ejecting/injecting sets of obfuscated public keys from/into WizardGraphicalClient binaries
cryptography go reverse-engineering
Last synced: 05 May 2025
https://github.com/64/kaiser
Classical cryptanalysis tool
caesar-cipher cipher classical-cipher classical-cryptography crypto cryptography rust
Last synced: 06 May 2025
https://github.com/jsign/kzg-ceremony-test-vectors
Ethereum KZG ceremony test vectors using the reference implementation
cryptography ethereum kzg powers-of-tau
Last synced: 04 Apr 2025
https://github.com/ancientlore/hashsrv
A web service that performs hashing, encryption, encoding, and compression.
cryptography encoding golang hashing webservice
Last synced: 06 May 2025
https://github.com/danieldidiobalsamo/sha256_golang
Go SHA-256 from-scratch implementation
Last synced: 11 Apr 2025
https://github.com/rtmigo/dmk_py
Experimental encryption app
cli cryptography deniable-encryption encrypted-store file-encryption information-security linux macos obfuscation package password-manager password-storage plausible-deniability posix python windows
Last synced: 10 Jul 2025
https://github.com/notadminn/ethwallethunter
EthWalletHunter generates random Ethereum wallets, checks their transaction history and balance, and logs "interesting" wallets with activity or balance. It's optimized for performance with multithreading and system resource monitoring. Intended for educational and research purposes only.
address-checker brute-force cryptography ethereum ethereum-api ethereum-tools mnemonic mnemonic-cracker mnemonic-generator password-cracker private-key wallet-cracker wallet-generator
Last synced: 10 Jul 2025
https://github.com/xscriptorcode/xkyber_crypto
xKyberCrypto post-quantum encryption solutions in flutter based on the Kyber algorithm.
crypto cryptography cryptography-algorithms dart-package flutter-crypto kyber kyber-algorithm library post-quantum-cryptography public-key-encryption security xkyber
Last synced: 11 Apr 2025
https://github.com/cuhsat/spritz.c
Spritz cipher implementation in ANSI C.
algorithm ansi-c c cryptography spritz
Last synced: 12 Apr 2025
https://github.com/viniciusfinger/python-blockchain
Exploring the foundational concepts of blockchain with this simple Python implementation. This project demonstrates the core principles of blockchain, including mining, nonce, SHA-256 hashing, and proof of work. 🧱⛓️
blockchain blockchain-technology cryptocurrency cryptography proof-of-work python
Last synced: 12 Apr 2025
https://github.com/sug0/git-signify
Harness the power of signify(1) to sign arbitrary git objects
cryptography git openbsd rust security signature signify
Last synced: 07 May 2025
https://github.com/manelli/ex_bcrypt
Elixir wrapper for the OpenBSD bcrypt password hashing algorithm
bcrypt cryptography elixir password security
Last synced: 20 Jun 2025
https://github.com/actuallyachraf/algebra
A literate :pencil: implementation of algebraic primitives for cryptography and algebraic applications :alembic:
algebra bulletproofs cryptography elliptic-curve-arithmetic elliptic-curve-cryptography finite-fields learning-by-doing pairings polynomials primitives schnorr-signatures
Last synced: 02 Feb 2026
https://github.com/fametrano/bbt
Bitcoin and Blockchain Technology Course Material
bitcoin blockchain blockchain-technology cryptocurrencies cryptography
Last synced: 22 Jun 2025
https://github.com/lnqs/subchain
Local Blockchain Module for JavaScript
blockchain cryptography incredible javascript local typescript
Last synced: 16 May 2026
https://github.com/snykk/ctf-writeups
ctf writeups
binary capture-the-flag cryptography ctf-learn ctf-writeups forensics pico-ctf reverse-engineering steganography web-exploitation
Last synced: 14 Jul 2025
https://github.com/dhcgn/gopqexperiment
My Go PQ Experiment
cryptography csidh ed448 go golang hpke post-quantum
Last synced: 26 Aug 2025
https://github.com/lukateras/rust-zerotier-crypto
ZeroTier-compatible cryptography library for Rust
cryptography hashcash rust zerotier
Last synced: 15 Jul 2025
https://github.com/jpvitan/marsa
A Python library that lets you experiment with the mathematics of the Rivest–Shamir–Adleman (RSA) cryptosystem.
cryptography number-theory pypi python rsa
Last synced: 07 Apr 2026
https://github.com/alisianoi/lyra2-java
Subset of Lyra2 password hashing
cryptography hash-algorithm password
Last synced: 05 Apr 2025
https://github.com/cyanheads/toolkit-mcp-server
A Model Context Protocol server providing LLM Agents with system utilities and tools, including IP geolocation, network diagnostics, system monitoring, cryptographic operations, and QR code generation.
cryptography developer-tools geolocation llm llm-agent mcp model-context-protocol networking system-utilities typescript
Last synced: 28 Mar 2025
https://github.com/corvuscodex/multithread-polkadot-brute-force
Nodejs script that generates random private keys for the Polkadot blockchain and checks if the corresponding public address is in a list of addresses stored in a file named ‘data.txt’. If a match is found, the script logs the public address and saves the wallet and its private key (seed) to a file named ‘match.txt’.
bruteforce crack crypto cryptocurrency cryptography javascript nodejs polkadot polkadot-bruteforce polkadot-wallet seed seed-cracking wallet-bruteforce
Last synced: 13 Apr 2025
https://github.com/sdrapkin/securitydriven.winter
Cloud-Scale Cryptography.
aead aes-gcm cryptography gcm streaming
Last synced: 13 Apr 2025
https://github.com/virgilsecurity/virgil-keyknox-javascript
Keyknox SDK allows developers to communicate with Virgil Keyknox Service to upload, download, and synchronize encrypted sensitive data (private keys) between different devices.
cryptography data-sharing keyknox sdk
Last synced: 09 May 2025
https://github.com/virgilsecurity/demo-nexmo-chat-android
A simple Web application that demonstrates how the end-to-end encryption works in chat messaging use case. The application uses Nexmo as a messaging provider.
android chat cryptography e2ee encryption end-to-end-encryption messenger nexmo secured-by-virgil vonage web-app
Last synced: 09 May 2025
https://github.com/Signal-K/Prof
Prof, from the icelandic word for tests: automated unit tests for the Star Sailors ecosystem
blockchain blockchain-game buildspace cryptography dao dao-design-pattern ethersproject magic nft star-sailors thirdweb
Last synced: 11 May 2025
https://github.com/nicknaso/cryptoppjs
Node.js native addons for cryptopp
cplusplus crypto cryptography javascript native-module nodejs
Last synced: 17 Feb 2026
https://github.com/mortendahl/pond
Experimental library for deep learning on encrypted data
cryptography deep-learning machine-learning secure-computation
Last synced: 15 Jan 2026
https://github.com/p3t3r67x0/vigenere_cipher
Simple programm to encrypt or decrypt a vigenere cipher text. This tool might be handy for some CTF games.
crypto cryptography ctf ctf-tools python vigenere-cipher
Last synced: 21 Jul 2025
https://github.com/sc0vu/js-keccak-tiny
Keccak tiny emscripten binding in javascript, including SHA-3/Keccak/Shake hash function.
cryptography hash keccak keccak-tiny sha3 shake wasm webassembly
Last synced: 13 Apr 2025
https://github.com/datumbox/vernamveil
VernamVeil: A Function-Based Stream Cypher
Last synced: 25 Jun 2025
https://github.com/tynes/nameswaps
Decentralized Exchange Infrastructure for Handshake Names
bitcoin blockchain cryptocurrency cryptography handshake peer-to-peer
Last synced: 29 Apr 2026
https://github.com/juliacrypto/krypto.jl
A futuristic crypto library. In Julia. [OLD]
cryptography decryption deprecated-repo ecc encryption julia pqc rlwe rsa
Last synced: 13 May 2025
https://github.com/codiepp/elykseer-base
cryptographic data archive; written in F#; envisaged to stay another 10 years
archive cli cryptography data distributed-storage dotnet fsharp longterm-storage
Last synced: 19 May 2026
https://github.com/haskell-cryptography/one-time-password
Haskell implementation of One-Time Passwords algorithms
cryptography haskell hotp totp
Last synced: 12 Jun 2025
https://github.com/ali2210/wizdwarf
(:tada:) WzDwarf is a decentralized molecular application interface
cloud containers cryptography decentralized docker docker-compose go linux protocol-buffers terraform
Last synced: 11 Sep 2025
https://github.com/malisha4065/basic-cryptography
Basic Cryptography Concepts
cryptography hashing javascript nodejs
Last synced: 02 May 2026
https://github.com/slowli/secret-tree
Hierarchical secret derivation with Blake2b and RNGs
Last synced: 22 Mar 2025
https://github.com/ahf/erlang-ucrypto
µCrypto is a thin wrapper for the OpenSSL API's that are missing in OTP's crypto application.
cryptography elliptic-curves erlang openssl ripemd160
Last synced: 08 Apr 2026
https://github.com/johndoe31415/padding-oracle-helper
PKCS#7 CBC padding oracle command line interface helper
cbc cryptography education oracle padding
Last synced: 08 Apr 2026
https://github.com/haizzz/lockbox
Double click to encrypt / decrypt a folder
cryptography encryption hacktoberfest python python3
Last synced: 06 Apr 2025
https://github.com/cyrildever/feistel-py
Feistel cipher implementation in Python for format-preserving encryption
algorithm cryptography encryption feistel-cipher format-preserving-encryption fpe xor-operation
Last synced: 09 Oct 2025
https://github.com/arad-afzali/aes-file-encryptor-decryptor
AES-File-Encryptor is a Python-based application that provides a user-friendly graphical interface for encrypting and decrypting files or texts using the Advanced Encryption Standard (AES). This tool is designed to help users secure their files or texts by generating encryption keys, and encrypting or decrypting them when needed.
aes aes-encryption cryptography decryption encryption-tool file-encryption file-security gui text-encryption
Last synced: 20 Jan 2026
