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/mingikang31/sift-v1.0
Cryptography Project
cryptography encryption-decryption python3
Last synced: 16 Jun 2025
https://github.com/lukinalexeyg/phpcrypt
Stand-alone version of php_sha256_crypt without any PHP dependencies
Last synced: 21 Apr 2026
https://github.com/dannywillems/ocaml-bls12-381
Fast BLS12-381 implementation in OCaml
bls-signature bls12-381 blst cryptography fft hash-to-curve ocaml pairing pairing-cryptography poseidon rescue signatures tezos zero-knowledge
Last synced: 31 Oct 2025
https://github.com/redreaper420/reversible-image-censorship-tool
Primitive encryption and decryption scripts for PNG images.
censorship cryptography image image-manipulation numpy pillow png python steganography
Last synced: 17 May 2026
https://github.com/daim-nickel-penny/elixir
BlockChain based simple DAPP
blockchain-technology cryptography javascript
Last synced: 18 Jul 2025
https://github.com/iprs-dev/drand-rs
Drand client in Rust
cryptography drand random-number-generators
Last synced: 26 Mar 2025
https://github.com/deovaliandro/des
Simple implementation of Data Encryption Standard
Last synced: 13 Apr 2025
https://github.com/supermarcel10/cryptographicanalysisofsha2
Comparative benchmark of SMT solver effectiveness in cryptographic hash collision discovery for SHA-2 algorithms.
cryptanalysis cryptography research research-paper research-project satisfiability-modulo-theories satisfiability-problem sha2 smt
Last synced: 30 Jul 2025
https://github.com/mrdcvlsc/bytepadding
A collection of different byte padding methods
alignment ansix923 block block-cipher block-cipher-mode byte-array c-plus-plus cplusplus cpp cryptography data-processing data-stream fill iso-iec-7810 library memory memory-management padding pkcs5 pkcs7
Last synced: 18 Jul 2025
https://github.com/buabaj/fairness-engine
a simple secure multi-party computation server to ensure input data privacy while maintaining correctness and fairness using shamir's secret sharing protocol
cryptography golang mpc shamir-secret-sharing
Last synced: 12 Apr 2025
https://github.com/virgilsecurity/virgil-keyknox-kotlin
KeyKnox SDK allows developers to communicate with the Virgil Keyknox Service to upload, download, and synchronize encrypted sensitive data (private keys) between user's devices.
cryptography data-sharing keyknox sdk
Last synced: 23 Jul 2025
https://github.com/cartory/encoderr
🔐 Basic Algorithms for Decoding & Encoding
cryptography decoding encoding javascript
Last synced: 17 May 2026
https://github.com/minapecheux/medusa
A small encoding/decoding Python lib.
Last synced: 02 Nov 2025
https://github.com/slayernominee/cryptographic-algorithms
just some cryptographic algorithms to learn it
Last synced: 06 Jul 2025
https://github.com/mrshankly/erlang-paillier
NIF bindings for the libpaillier cryptographic library
cryptography erlang homomorphic-encryption paillier
Last synced: 18 May 2026
https://github.com/samdney/research-sites
List of useful websites for math, algebra, number theory, cryptography, online security and privacy research.
algebra archive computer-science cryptography help latex list math mathematics maths number-theory reprint research tools webiste
Last synced: 22 May 2026
https://github.com/PeaceFounder/OpenSSLGroups.jl
OpenSSL elliptic curve wrapper for CryptoGroups
cryptography elliptic-curves openssl
Last synced: 06 Apr 2026
https://github.com/erich-9/CryptographicHashFunctions.jl
Fast cryptographic hash functions for Julia
cryptographic-hash-functions cryptography hash-functions julia
Last synced: 06 Apr 2026
https://github.com/cryptimeleon/android-demo
An example project with instructions on how to use cryptimeleon on android.
android android-app cryptography mcl pairing
Last synced: 12 Jan 2026
https://github.com/BotsUniverse/cryptrooper
Cryptrooper is a module that can encode and decode your text with a given key.
crypt cryptography decode encode python python3
Last synced: 19 Aug 2025
https://github.com/jakubvojvoda/rsa-cryptography
Simple RSA implementation using GMP
cpp cryptography decryption encryption gmp rsa
Last synced: 14 May 2025
https://github.com/sheroz/sheroz
back-end cryptography databases distributed-systems rust security
Last synced: 01 Mar 2026
https://github.com/unknnownnn/ctf-swiss-army-knife
An All in One program for solving CTF challenges
cryptography ctf ctf-tools cyber-forensics cybersecurity-tools hexdump-viewer pyqt6 python steganography windows
Last synced: 31 Jul 2025
https://github.com/4l3x777/magma
GOST 34.12-2018 (GOST 28147-89) x64 asm realization
Last synced: 14 May 2026
https://github.com/radlikewhoa/supernatural
Substitution Permutation Network exercise for the Cryptography and Security module (krysi) at the FHNW.
Last synced: 26 Jun 2025
https://github.com/christian-doucette/code_breaker
Cryptography web app with encryption and automatic decryption functions for various ciphers. Built with Flask.
Last synced: 11 Apr 2026
https://github.com/ashutoshvarma/cryptopals
Challenges from https://cryptopals.com/
aes cryptography cryptopals rust
Last synced: 23 Jul 2025
https://github.com/hubert-kniola/visualcryptography
A simple program to encrypt and decrypt graphic files
aes crypto cryptography decryption encryption
Last synced: 12 Apr 2025
https://github.com/andersoncarrilho/sha256_elip
SHA256 and RIPMED160
bitcoin bitcoin-wallet cryptography cryptography-algorithms eliptic hash160 privatkeys ripmd160 sha256 sha256-crypt sha256-hash
Last synced: 07 Mar 2026
https://github.com/gcarreno/go-randomhash
A Go implementation of RandomHash
consensus consensus-algorithm cryptocurrencies cryptocurrency cryptography go golang pow proof-of-work random-hash randomhash
Last synced: 09 Jul 2025
https://github.com/gcarreno/go-randomx
A Go wrapper of RandomX
consensus consensus-algorithm cryptocurrencies cryptocurrency cryptography go golang pow proof-of-work randomx
Last synced: 09 Jul 2025
https://github.com/sammyne/sm4
A Go implementation of SM4 block cipher algorithm as specified by GM/T 0002-2012
Last synced: 18 Mar 2025
https://github.com/cuhsat/fx
A strictly experimental stream cipher in ANSI C.
algorithm ansi-c c cipher cryptography fumbled-xor stream-cipher
Last synced: 29 Mar 2025
https://github.com/samuel-lucas6/aes-ctr.net
A .NET implementation of AES-CTR.
aes aes-256 aes-ctr aes-ctr-mode aes-decryption aes-encryption crypto cryptography
Last synced: 27 Mar 2025
https://github.com/h5law/vinegar
A Golang library for creating and using Vigenere Ciphers
cryptography encryption-decryption vigenere vigenere-cipher vigenere-cipher-algorithm
Last synced: 17 Mar 2025
https://github.com/ishanoshada/lockix
A secure file encryption and decryption tool
cryptography encryption files security
Last synced: 07 Mar 2026
https://github.com/virgilsecurity/demo-twilio-sms-net
A simple Net Console application that demonstrates how to send encrypted message via SMS.
cryptography encryption end-to-end-encryption secured-by-virgil sms twilio twilio-sms twilio-sms-api
Last synced: 31 Jul 2025
https://github.com/HK-Transfield/python-quantum-key-exchange-simulator
A simple program to simulate a Quantum Key Exchange (QKE) algorithm, written in Python3.
cryptography encryption python python3 quantum-computing quantum-key-distribution symmetric-cryptography symmetric-encryption symmetric-key-cryptography xor-cipher xor-encryption
Last synced: 12 Aug 2025
https://github.com/aaron-akhtar/crypto
Learning crypto for future projects.
basic crypto cryptography encryption java
Last synced: 01 Aug 2025
https://github.com/texadactyl/cloaking.py
Pythonic password-based security of a single file or a single file system archive file.
cryptography encryption-decryption password-based pycrypto python python-3 python3
Last synced: 01 Aug 2025
https://github.com/mttbernardini/mbencrypter
:closed_lock_with_key: This program will help you encrypting or decrypting some data or a file using MB's algorithm. NB: this project has been supeseded by https://github.com/mttbernardini/mbc
algorithm cryptography raw-data rawinput symmetric-keys text
Last synced: 26 Mar 2025
https://github.com/zhongruoyu/aes
Advanced Encryption Standard (AES) in C with file encryption/decryption support.
Last synced: 23 Jul 2025
https://github.com/cartory/encoderr-web
🔐 Crypto Final Project - Encoderr
cryptography decoding encoding javascript uagrm webpack
Last synced: 11 May 2026
https://github.com/ecies/py-demo
A simple fastapi eciespy web backend demo
cryptography ecies fastapi python3 secp256k1 webdemo
Last synced: 12 Apr 2025
https://github.com/chakshugupta13/local-collision-differential-attack-on-reduced-sha-256-upto-24-rounds
This repository contains C and/or C++ implementations for finding Local Collision Conforming Message Pairs through Differential Attack on Reduced-Round SHA-256 up to 24 Rounds. Also, this repository contains the C++ implementations of SHA-256, SHA-512 and SHA-384.
cryptanalysis cryptography differential-attack sha-256 sha-384 sha-512
Last synced: 11 Apr 2025
https://github.com/rohitanwar/cryptography
An exploration of various cryptographic functions (and related stuuf)
Last synced: 21 Aug 2025
https://github.com/azrod/cryptio
cryptio is a modern Go library for secure password-based encryption and decryption, featuring Argon2id key derivation and AES-GCM. Choose your desired security level—Standard, Medium, or High—for optimal protection and performance balance.
argon2 argon2id cryptography decryption encryption golang key-derivation password-hashing symetric-encryption
Last synced: 24 Sep 2025
https://github.com/alekseibalan/usfs
USFS - unsigned short file system
cryptography docker docker-hub dynamodb file-system ftp-server mongodb quality usfs
Last synced: 15 May 2026
https://github.com/thyeem/longshot
Fast Brute-force search using parallelism
brute-force-attacks cryptography haskell parallelism
Last synced: 06 May 2025
https://github.com/fardinhash/cryptography-python
All about Cryptography tools & techniques. Python implementation.
crypto cryptography cryptography-algorithms cryptography-library cryptography-python cryptography-tools decryption encryption encryption-algorithms encryption-decryption python-cryptography python-encryption
Last synced: 16 Jun 2025
https://github.com/marcode24/criptografia
🔐 This is a cryptography project testing, using base64 and AES criptography
aes aes-encryption base64 cryptography css decoding encoding encryption encryption-algorithms html nodejs
Last synced: 06 Apr 2026
https://github.com/alexgalhardo/blockchain.alexgalhardo.com
A web-based demonstration of blockchain concepts. This is a very basic visual introduction to the concepts behind a blockchain.
bitcoin blockchain cryptocurrency cryptography docker hash javascript nodejs pug-template-engine
Last synced: 09 Apr 2026
https://github.com/masajinobe-ef/prsc
🔐Free cross-platform password manager on Flask, Python, SQLite with Cryptography
cross-platform cryptography database flask linux macos password password-manager python security sql sqlite web-development windows
Last synced: 01 Aug 2025
https://github.com/arctictechnology/simplewallet
Simple Wallet is a minimalist Bitcoin wallet that lets you securely create Bitcoin addresses, sign messages, and validate addresses.
bitcoin bitcoin-address bitcoin-addresses bitcoin-signing bitcoin-wallet cryptocurrency cryptography ecdsa libsecp256k1 p2pkh p2wpkh
Last synced: 24 Sep 2025
https://github.com/crodriguezvega/go-knapsackcrypto
Knapsack crypto systems in Go
crypto cryptography cryptography-library go golang knapsack-crypto knapsack-encryption merkle-hellman merkle-hellman-knapsack public-key-cryptography
Last synced: 12 Apr 2025
https://github.com/definetlynotai/cryptoxide
Special Rust mini library to define your own cryptography hashes
cryptography custom customizable library mini rust side-project
Last synced: 21 Jul 2025
https://github.com/verkush/lockboxpro
The LockBoxPro is an advanced software solution designed to facilitate the creation and evaluation of cryptographic algorithms.
cryptography electronjs generator
Last synced: 20 Jan 2026
https://github.com/divshekhar/decipher
Breaking transposition cipher using metaheuristic algorithms
cryptanalysis cryptography dpso-algorithm genetic-algorithm geneticalgorithm jaya-algorithm mpso-algorithm pso-algorithm transposition-cipher
Last synced: 02 Nov 2025
https://github.com/factomproject/java-identitykeys
Allows you to implement Factom identity keys in Java.
blockchain-technology cryptography digital-identity factom factom-blockchain public-key-cryptography
Last synced: 29 Jun 2026
https://github.com/yazatamorph/pinkdf2
Gleam bindings to fast_pbkdf2 NIF for PBKDF2 (Password-Based Key Derivation Function 2) on Erlang.
Last synced: 10 Apr 2025
https://github.com/10d9e/rs-fast-merkle
Rust Implementation of Streaming Merkle Root, Proof, and Verify (single leaf) from Luke Champine's paper: Streaming Merkle Proofs within Binary Numeral Trees
cryptography merkleproof merkletree rust
Last synced: 22 Jul 2025
https://github.com/maymeow/php-cryptography
🔐 Cryptographic library for PHP
cryptography hacktoberfest hacktoberfest2021 php php-library
Last synced: 26 Jun 2025
https://github.com/jxareas/sign-with-gpg
Learn how to easily sign your commits with GPG Cryptographic Keys on MacOS & Windows.
commit-signing cryptography git gpg learn macos windows
Last synced: 09 Apr 2026
https://github.com/enricoong/Chat
Progetto annuale Java con Battistelli Giovanni, per professor D. Giachetto.
client cryptography database java maven rsa server
Last synced: 15 Jul 2025
https://github.com/chronosgit/javary
Javary is a secure, Java-based personal diary application built with a client-server architecture. It enables users to create, store, and retrieve encrypted diary entries over a network, ensuring privacy and data persistence.
backend client cryptography diary frontend java jdbc junit mockito networking secure server slf4j testing
Last synced: 16 Aug 2025
https://github.com/churro/avr-aes128-groestl256
Efficient AES-128 & Grøstl-256 Implementations for the AVR 8-bit Microcontroller Architecture
aes-128 atmega128 avr cryptography groestl-256
Last synced: 10 Apr 2025
https://github.com/isakruas/ecdp
The Elliptic Curve Data Protocol (ECDP) is a P2P communication protocol for decentralized networks, utilizing elliptic curve cryptography (ECC) for encryption, ECDSA for message authentication, and Diffie-Hellman key exchange for secure sessions. It operates over TCP and UDP.
cryptography data-security decentralized-networks diffie-hellman-key-exchange ecdsa elliptic-curve-cryptography encryption message-authentication peer-to-peer protocol secure-communication session-initialization tcp udp
Last synced: 06 May 2025
https://github.com/ahmedemad242/secure-shared-file-storage
Project aims to create a secure platform for file sharing using File Transfer Protocol (FTP) and hybrid cryptography. The project involves building an FTP server and client application in Python, as well as implementing multiple cipher encryption to protect the transferred files
cryptography encryption ftp python
Last synced: 04 Apr 2025
https://github.com/hanzopgp/steganography
Cryptography project.
cryptography jupyter-notebook steganography university
Last synced: 29 May 2026
https://github.com/vymalo/keycloak-bcrypt
Keycloak Bcrypt plugin for PasswordHashProvider
bcrypt crypto cryptography keycloak keycloak-spi passwordhash spi
Last synced: 15 Jul 2025
https://github.com/sdanielsilva/simpleimageencryptor
A versatile file encryption tool that securely encrypts and decrypts image and other file types with AES and DES algorithms, supporting multiple modes and easy key management.
aes cbc cipher cryptography cryptography-tools data-protection des ecb encryption file-encryption image-encryption iv-generation java key-management secure-file-storage security
Last synced: 04 Jun 2026
https://github.com/petrknap/php-crypto-sodium
The library that packages functional `sodium_crypt_*` into objects.
aead aes asymmetric-cryptography block-cipher chacha20 cryptography curve25519 decryption encryption php php-library poly1305 public-key-cryptography secret-key-cryptography security sodium stream-cipher symmetric-cryptography x25519 xchacha20
Last synced: 10 Jul 2025
https://github.com/mattlianje/enigma
CLI Tool ... A pure FP, M3 Enigma machine as used by the Germans from 1934-45.
cipher cryptography enigma-machine enigma-simulator functional-programming
Last synced: 28 Mar 2025
https://github.com/olucascruz/securechat_frontend
Frontend de aplicação web de chat com criptografia
chat cryptography react reactjs vite
Last synced: 16 May 2026
https://github.com/ergl/sss
Basic Shamir's Secret Sharing
cryptography pony-language shamir shamir-secret-sharing
Last synced: 06 Feb 2026
https://github.com/valohai/openssh-key
Tools to deal with OpenSSH2 (RFC4716) keys in Python
cryptography keys openssh pki python ssh
Last synced: 02 Aug 2025
https://github.com/vatshayan/hiring
Hiring for Data Science, Cryptography, Machine Learning and Artificial Intelligence.
cryptography data-science data-visualization datasets hiring internship internship-task machine-learning machine-learning-algorithms
Last synced: 09 Mar 2026
https://github.com/iwas-coder/cryrsa
RSA key creator, extractor and compute tool. Useful to process keys with small modulus and try to factorize them.
asymmetric-cryptography cryptography private-key-cryptography public-key-cryptography rsa
Last synced: 20 Jul 2025
https://github.com/arihantbansal/cybersec-python
Cybersec/CTF practice problems solved in Python
crawler cryptography ctf cybersecurity sockets webscraping
Last synced: 02 Aug 2025
https://github.com/aveygo/jsnewhope
Javascript implementation of scottwn/PyNewHope, a post-quantum cryptographic scheme
cryptography javascript key-exchange-algorithms newhope quantum quantum-computing
Last synced: 18 Mar 2025
https://github.com/dbstratta/naive-crypto
Very naive implementations of various cryptosystems written in Haskell
crypto cryptography diffie-hellman elgamal haskell naive rsa
Last synced: 02 Aug 2025
https://github.com/synacktraa/satcoin
[ SynAckTra coins ] - A demonstration of the workings of blockchain. [WIP]
blockchain certificate-authority cryptocurrency cryptography demonstration faucet python3 wallet
Last synced: 21 Mar 2025
https://github.com/alanruno/mxd
MXD — Post-Quantum Blockchain with one-way bridge to BNB Smart Chain. Hybrid Ed25519 + Dilithium5 (FIPS 204 ML-DSA-87) at the address, transaction, and consensus layers.
agpl-3 blockchain bnb-bridge bnb-chain consensus cryptography dilithium5 fips-204 ml-dsa-87 post-quantum
Last synced: 24 May 2026
https://github.com/koh-gt/multiply
A powershell script to multiply large numbers, showing all digits.
128-bit 256-bit 512-bit 64-bit base2 bignum cryptography ecdsa multiply octal powershell quaternary seximal ternary
Last synced: 18 Mar 2025
https://github.com/fpoirotte/cryptal-tomcrypt
An implementation of the Cryptography Abstraction Layer based on the tomcrypt PHP extension
cryptal crypto cryptography libtomcrypt php tomcrypt
Last synced: 03 Apr 2025
https://github.com/bkawk/bit-flip
Polymer1 Web Component for generating a random hexadecimal or binary string, of a specified length.
bitcoin crypto cryptography polymer webcomponents
Last synced: 15 May 2026
https://github.com/nikhil25803/pyfidelius
Python SDK for Fidelius CLI, a tool designed for ECDH cryptography.
Last synced: 20 Jan 2026
https://github.com/fbielejec/zksnarks-notes
notes & explorations of various zero knowledge protocols
cryptography elliptic-curves pairings snarks zero-knowledge
Last synced: 12 Jan 2026
https://github.com/thehashiramasenju/dag-livestocx
🌾 LivestocX: Revolutionizing LiveStock Asset finances through blockchain | Farmers tokenize assets, investors fund globally | Built for BlockDAG Hackathon 2025
backend blockchain blockchain-technology blockdag blockdagtestnet cryptocurrency cryptography dapp decentralized ethereum ethereum-blockchain ethersjs front-end-development primordial reactjs solidity vercel vercel-deployment webapp
Last synced: 09 Apr 2026
https://github.com/jacksonwalters/open-encrypt
Encrypted messaging webapp using lattice-based methods in Python + PHP + SQL
cryptography encryption homomorphic-encryption lattice-based lattice-based-cryptography module-lwe php post-quantum post-quantum-cryptography python ring-lwe sql
Last synced: 20 Mar 2025
https://github.com/unbekanntes-pferd/dco3-crypto
A Rust crate for cryptography in DRACOON - more info on DRACOON here: https://dracoon.com
cryptography dracoon openssl rust-crate rust-crypto rust-lang
Last synced: 02 Aug 2025
https://github.com/clats97/clatsguard
Secure your documents with this Python AES-256-GCM file encryptor featuring PBKDF2-HMAC key derivation, passphrase-based or hex key usage, and a Tkinter GUI for user-friendly encryption. Open-sourced. This project was peer reviewed by a CompTIA Security+ person.
aes256 aes256-gcm cryptography encryption encryption-decryption file-encryption python security trending
Last synced: 03 Apr 2025
https://github.com/gianlucatruda/nis-encrypted-messaging
A demonstration of security principles for peer-to-peer communications of sensitive content.
aes-encryption cryptography messaging python3 rsa-cryptography security
Last synced: 03 Apr 2025
https://github.com/agucova/oxcrypt
A fast, memory-safe Cryptomator client written in Rust.
cryptography cryptomator filesystem fuse rust vault
Last synced: 15 May 2026
https://github.com/madhurimarawat/codeculture-daily
A daily programming challenge repository where fun meets learning! With 39 challenges over 39 days, it helps coders enhance skills through practical tasks and interview prep. While maintenance is paused, contributions are welcome, and future expansions are planned to keep learning ongoing.
beginner-friendly code-repository cryptography daily-problems daily-progaramming intemediate-questions java javascript non-tech-questions official-solutions personality-development problem-of-the-day programming-contest python soft-skills tech-questions technologies tools website-deploy winner-announcement
Last synced: 10 Apr 2026
https://github.com/hamarshehmhmd/passgenerator
PassGen is a simple command-line password generator written in Python. It allows users to customize password criteria by toggling lowercase and uppercase letters, digits, and special characters on and off. PassGen uses the secrets module to generate cryptographically secure random passwords of variable length.
command-line cryptography password-generator python security
Last synced: 29 Mar 2025
https://github.com/priyakdey/sigil
Sigil is a minimal-dependency, lightweight and modular cryptographic library in Java, for working with JSON Object Signing and Encryption (JOSE) family of standards. It supports secure signing, encryption, key handling and encoding/decoding of JWT, JWS, JWE components.
cryptography java jose jwa jwe jwk jws jwt
Last synced: 23 Jun 2025
https://github.com/simon-greatrix/sec-prng
Secure random number generation
cryptography java prng security
Last synced: 12 Jan 2026
