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: 2026-07-02 00:06:57 UTC
- JSON Representation
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/zozs/filecryptify
Simple file and stream encryption tool based on libsodium
Last synced: 12 Feb 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/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/primefactor-io/xchacha20-poly1305
100% RFC compliant implementations of ChaCha20-Poly1305 and XChaCha20-Poly1305
chacha20 chacha20-poly1305 cryptography cryptography-algorithms poly1305
Last synced: 01 Mar 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/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/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/iamnotstatic/wallet-manager
This is for managing crypto addresses and generation
bitcoin blockchain cryptocurrency cryptography ethereum
Last synced: 14 Feb 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/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/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/micchickenburger/cryptotools
A versatile cryptographic tool for data hashing, encryption, decryption, digital signing, password security, and secure random number generation, entirely in the browser.
aes argon2 bcrypt crypto cryptography cryptography-tools cybersecurity digest encryption encryption-decryption hashing pake pki rsa security security-tools sha
Last synced: 13 Feb 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/ideal-lab5/etf
"Encryption to the Future" consensus and node
blockchain cryptography substrate timelock-encryption
Last synced: 17 Mar 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://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/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/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/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/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/tynes/libsigner
manage watch only bitcoin wallets with bcoin
bcoin bitcoin cryptography ledger nodejs trezor
Last synced: 08 May 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/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/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/yodalightsabr/2password
2Password: A cryptography experiment
aes-256 cryptography experimental password-manager
Last synced: 10 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/siddhpant/junior-inctf-2017-writeup
Writeups for Junior InCTF 2017
android binary-exploitation cryptography ctf ctf-challenges ctf-solutions ctf-writeups forensics reverse-engineering trivia web-exploitation
Last synced: 29 Apr 2026
https://github.com/darshan-kc/python-vigenere-cipher
Vigenere Ciphere using python
Last synced: 14 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/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/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/dedis/fixbuf
Fixed length binary encoding of arbitrary structures in Go
cryptography encoding fixed-length golang
Last synced: 21 Sep 2025
https://github.com/vschwaberow/npwg
A Secure Password Generator Written in Rust
cryptography first-timers password password-generator security security-tools
Last synced: 03 Jan 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/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/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/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/pelock/stringencrypt-vscode-extension
Encrypt and hide plain text strings & file contents within your source code in a secure & encrypted form with the help of a polymorphic engine, generating random-looking decryption code every time.
cryptography encryption file-encryption polymorphic-engine security string-encoding string-encryption string-generator
Last synced: 30 Jul 2025
https://github.com/cmason3/vaulty
Vaulty in Python - Encrypt/Decrypt with ChaCha20-Poly1305
chacha20-poly1305 crypto cryptography ecdh ecies eddsa encryption-tool python scrypt
Last synced: 26 Jul 2025
https://github.com/kernelmethod/ChaChaCiphers.jl
GPU-compatible implementations of the ChaCha stream cipher family
Last synced: 06 Apr 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/virgilsecurity/virgil-sdk-pfs-x
Virgil PFS SDK Objective-C/Swift
carthage cocoapods cryptography encryption perfect-forward-secrecy pki swift virgil-cards virgil-pfs-sdk
Last synced: 21 Aug 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/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/lablnet/cryptographic_algorithms
My own implementation of the Cryptographic Algorithms in Python.
algorithms cryptography python
Last synced: 08 Sep 2025
https://github.com/ashrockzzz2003/vault_007
One place to manage all your passwords!
aes blockchain cbc cipher cryptography flutter isar material-design offline-app password-generator password-manager security vault
Last synced: 08 Mar 2026
https://github.com/kosasih/quantum-mesh
A cutting-edge Git repository for developing advanced cryptographic protocols and blockchain integration for Pi Network, leveraging quantum computing principles for unparalleled security and efficiency.
cryptography protocol protocol-oriented-programming
Last synced: 08 Mar 2026
https://github.com/gavincarr/go-slip39
A SLIP-0039 library for Go.
bitcoin cryptography go slip39
Last synced: 31 Jul 2025
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/diptochakrabarty/voice-encryption
Use Sockets and Encryption Algorithms for cryptography project
cryptography encryption hashing-algorithm rsa rsa-cryptography
Last synced: 01 Aug 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/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
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/r3li4nt/aescrypter
Encrypt and Decrypt files with Advanced Encryption Standard.
aes aes-128 aes-192 aes-256 aes-encryption cryptography decrypt encrypt linux python security
Last synced: 09 Mar 2026
https://github.com/erhant/arithmetic-circuits
Moda Palas Blackboard Cryptography II - Arithmetic Circuits & R1CS
circuits cryptography qap r1cs rust
Last synced: 18 Feb 2026
https://github.com/lowleveldesign/powercrypto
PowerShell module with various commands to encode/encrypt/print byte arrays.
Last synced: 01 Aug 2025
https://github.com/soreing/des-cpp-encrypt
Simple DES encryption library for C++
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/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/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/quyxishi/ethanium
XChaChaPoly1305-Argon2id cli, built on cryptopp & libsodium
argon2id cli cryptography windows xchacha20-poly1305
Last synced: 15 May 2026
https://github.com/martinpaljak/cdoc4j
Java library for handling CDOC 1.0/1.1/2.0 files with AES-256 GCM and RSA or ECC
aes-256 aes-gcm cdoc cryptography encryption java xml
Last synced: 14 Apr 2025
https://github.com/ashubly25/cryptography
My Work consists of Diffie-Hellman-Fibonacci, Hashing and XOR Cipher
Last synced: 26 Mar 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/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/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/alisianoi/lyra2-java
Subset of Lyra2 password hashing
cryptography hash-algorithm password
Last synced: 05 Apr 2025
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/nicknaso/cryptoppjs
Node.js native addons for cryptopp
cplusplus crypto cryptography javascript native-module nodejs
Last synced: 17 Feb 2026
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/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/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/littleli/paillier4j
Simple Paillier cryptosystem library
cryptography homomorphic-encryption paillier property-based-testing
Last synced: 15 May 2026
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/knightchaser/cryptography
A programmatic resource for cryptography (Gachon CPS + Personal)
algorithm cryptography implementation resource snippet
Last synced: 03 Aug 2025
https://github.com/shagege/blackbox
Surveillance tool using a permissionless blockchain
blockchain cryptography distributed-ledger p2p proof-of-work python
Last synced: 18 Aug 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/pprattis/Advanced-Encryption-Standard-for-credit-card-number
A script in Python that encrypts and decrypts a credit card number with AES.
aes-encryption computer-science credit-card cryptography decryption encryption program python student
Last synced: 28 Sep 2025
https://github.com/substrate-system/keys
Create and store asymmetric keys with the webcrypto API in the browser
browser cryptography keypair keys
Last synced: 28 Sep 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/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/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/sammyne/sm3
A Go implementation of SM3 cryptographic hash algorithm.
cryptographic-hash-functions cryptography
Last synced: 10 Apr 2025
https://github.com/horus-org/payjoin-react-native
React Native Library to Payjoin
bitcoin cryptography lightning-network payjoin privacy
Last synced: 13 Oct 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/arda-guler/bingallery
Encode your files into RGB images and decode them back.
command-line-tool cryptography decoder decoding encoder encoding proof-of-concept
Last synced: 14 Sep 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/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/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/tannerdsilva/swiftbcrypt
Swift package wrapping the OpenWall BCrypt hashing algorithm
bcrypt cryptography hash password swift
Last synced: 19 Feb 2026
https://github.com/firaskahlaoui/secury
Secury is a robust encryption and security application designed to ensure data privacy and access management. It features data encryption (Caesar Cipher, AES) and implements advanced Identity and Access Management (IAM) techniques, including Role-Based Access Control (RBAC) and Access Control Lists (ACL).
access-management acl aes-encryption caesar-cipher cryptography data-security encryption iam keyvault keyvault-secrets rbac siem
Last synced: 23 Jul 2025
