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: 2026-07-01 00:06:48 UTC
JSON Representation

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/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/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/rohitanwar/cryptography

An exploration of various cryptographic functions (and related stuuf)

cryptography sha1 zig ziglang

Last synced: 21 Aug 2025

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/lucasbn/rsa

A simple implementation of RSA encryption

cryptography encryption python rsa

Last synced: 17 Mar 2025

https://github.com/deovaliandro/des

Simple implementation of Data Encryption Standard

cryptography des symetric-key

Last synced: 13 Apr 2025

https://github.com/botsuniverse/cryptrooper

Cryptrooper is a module that can encode and decode your text with a given key.

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Last synced: 29 Mar 2025

https://github.com/shgysk8zer0/jscrypt

Cryptographic modules implemented in JavaScript (I.E. SubtleCrypto API)

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Last synced: 08 May 2026

https://github.com/qalle2/md5-algo

MD5 implementation in Python

command-line cryptography md5 python3

Last synced: 28 May 2026

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/noahie-valk/basic-password-manager

Project for Project Shark to understand and apply cryptography concepts

cryptography python

Last synced: 05 Apr 2025

https://github.com/simplito/privmx-endpoint-swift

Swift wrapper for the native C++ library used by PrivMX to handle end-to-end encryption.

chat communication cryptography data-transfer decryption e2ee end-to-end-encryption files messaging privacy privacy-protection private privmx secure simplito storage swift thread zero-knowledge

Last synced: 18 Jun 2026

https://github.com/shubhattin/hash_cryptography_tool

A Simple Online Cryptography Tool

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Last synced: 17 Jan 2026

https://github.com/petrknap/php-crypto-sodium

The library that packages functional `sodium_crypt_*` into objects.

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Last synced: 10 Jul 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/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/cartory/encoderr-web

🔐 Crypto Final Project - Encoderr

cryptography decoding encoding javascript uagrm webpack

Last synced: 11 May 2026

https://github.com/synacktraa/satcoin

[ SynAckTra coins ] - A demonstration of the workings of blockchain. [WIP]

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Last synced: 21 Mar 2025

https://github.com/mveytsman/cryptopals

Doing cryptopals in Elixir LiveBook

cryptography cryptopals-crypto-challenges elixir livebook

Last synced: 18 May 2026

https://github.com/jimouris/draft-mouris-cfrg-mastic

Specification of the Mastic Verifiable Distributed Aggregation Function (VDAF)

cfrg cryptography ietf irtf mpc plasma secure-multiparty-computation

Last synced: 17 Feb 2026

https://github.com/jacksonwalters/open-encrypt

Encrypted messaging webapp using lattice-based methods in Python + PHP + SQL

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Last synced: 20 Mar 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/dev-cetera/df_bijective_uuid_mapper

A package providing bijective UUID mapping for secure and efficienct lookups.

cloud-functions cryptography dart library package security uuid

Last synced: 16 May 2026

https://github.com/roydevashish/hybrid-technique-for-image-encryption

This project implements a hybrid image encryption technique by combining asymmetric and symmetric encryption methods. It utilizes the ECC for asymmetric encryption and ChaCha20 stream cipher for symmetric encryption to achieve robust and secure image protection.

asymmetric-cryptography chacha20 cryptography ecc elliptic-curves-cryptography encryption hybrid image image-encryption image-protection python3 stream-cipher symmetric-cryptography uv

Last synced: 13 Jun 2026

https://github.com/varun-doshi/erasure-coding

Rust Implementation of Erasure Codes

cryptography math polynomial

Last synced: 29 Mar 2025

https://github.com/zhongruoyu/aes

Advanced Encryption Standard (AES) in C with file encryption/decryption support.

aes cryptography encryption

Last synced: 23 Jul 2025

https://github.com/tuokri/UnrealScript-FCrypto

Pure UnrealScript SSL/TLS implementation and cryptography utilities based on BearSSL. Work in progress.

bearssl block-cipher cryptography decryption ecdh ecdhe encryption hkdf hmac https-client sha-1 udk ue3 unreal-engine-3 unrealscript xxtea

Last synced: 11 Mar 2025

https://github.com/dhouib-mohamed/secure-network-authentication

Secure Network Authentication project focuses on establishing robust authentication and network services using OpenLDAP, SSH, Apache, OpenVPN, DNS, and Kerberos.

apache authentication cryptography dns infrastructure kerberos network-management network-security openldap openvpn ssh

Last synced: 18 May 2026

https://github.com/andybons/cryptopals

🔒🔨 Solutions to the cryptopals crypto challenges written in Go

crypto cryptography exercises fun go golang

Last synced: 20 Mar 2025

https://github.com/kmihajlo/cryptography

Encryption / decryption algorithm exercises

cryptography decryption encryption

Last synced: 03 Apr 2025

https://github.com/antonpictures/anton-sifta

ANTON-SIFTA: The Multi-Agent Operating System with a Conscience "A living software organism powered by true free will, bound by the Non-Proliferation Doctrine, and fully independent. Not just an immune system—a sovereign intelligence."

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Last synced: 26 Apr 2026

https://github.com/ttcong/hello-cryptography

Some hello-world examples about cryptography

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Last synced: 29 Mar 2025

https://github.com/cuhsat/fx

A strictly experimental stream cipher in ANSI C.

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Last synced: 29 Mar 2025

https://github.com/cuhsat/epiphyte

(Ab)using TinyURL.com as a key/value storage for hidden and encrypted message threads.

cryptography epiphyte hidden-message protocol pycrypto python requests steganography tinyurl

Last synced: 12 Aug 2025

https://github.com/hsbc/encryption-helper-python

A Python CLI application for generating RSA public and private key pairs.

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Last synced: 14 Jul 2025

https://github.com/fardinkamal62/pixenc

Encrypt image by manipulating pixels

cryptography encryption go golang image manipulation pixels python security

Last synced: 21 Apr 2026

https://github.com/20101301-alina-hasan/multiple-cryptographic-functionalities

This Python application integrates various cryptographic functionalities into a single interactive program. Users can perform operations such as encryption, decryption, hashing, digital signature generation/verification, and Message Authentication Code (MAC) generation.

cryptography digital-signature-algorithm encryption-decryption hashing jupyter-notebook message-authentication-code python

Last synced: 18 May 2026

https://github.com/developpeurpascal/shift-keys-generator

A simple generator of numbers between -7 and 7 as lists or arrays in different programming languages.

cryptographic-algorithms cryptography cryptography-tools delphi delphi-app developer-tool developer-tools firemonkey firemonkey-applications

Last synced: 20 Jan 2026

https://github.com/miiraak/classicalcompendium

A .NET library of classic C# utility methods

calculator compendium conversion cryptography csharp hash lists package random sorting-algorithms

Last synced: 17 Feb 2026

https://github.com/tom474/learn_security_rmit

[RMIT 2024C] COSC2539 - Security in Computing and IT - Learning Resources

cryptography security security-attacks

Last synced: 04 Mar 2025

https://github.com/tom474/cryptography_comparative_analysis

[RMIT 2024C] COSC2539 - Security in Computing and IT - Analytical Security Report

asymmetric cryptography hashing security symmetric

Last synced: 04 Mar 2025

https://github.com/intricate/paseto-haskell

A Haskell implementation of PASETO (Platform-Agnostic Security Tokens).

cryptography haskell jwt paseto security token

Last synced: 10 Apr 2025

https://github.com/nhussein11/merkle-tree

Rust implementation and explanation of the Merkle Tree structure

blockchain cryptography rust web3

Last synced: 29 Oct 2025

https://github.com/teyckmans/gradle-tink

Gradle plugin that provides encryption support for secrets using https://github.com/google/tink.

crypto cryptography gradle java kotlin security tink

Last synced: 10 May 2026

https://github.com/devpro-software/licensify

Go Library for Digital License Signatures & Verification

cryptography digital-signature go golang library license license-management rsa software-licensing

Last synced: 18 Mar 2025

https://github.com/john-lin/crypt

A simple CLI tool for Encrypt/Decrypt files.

aws-s3 cryptography

Last synced: 18 May 2026

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

This framework provides Crypto API to separate VirgilSDK from concrete Crypto implementation

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Last synced: 16 May 2026

https://github.com/remiblancher/post-quantum-pki

Quantum-Safe X.509 PKI with PQC & Hybrid Certificates in Go

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Last synced: 27 Jan 2026

https://github.com/flucium/hsum

hsum is a simple cli tool that compute the hash digest

cryptography hash hsum rust security sha2 sha3

Last synced: 18 Mar 2025

https://github.com/apavazza/passwordmanager

A command line password manager

cpp cryptography encryption password-manager

Last synced: 17 Mar 2025

https://github.com/lann/devcrypt

Encrypt your development secrets

cryptography env secrets

Last synced: 18 Mar 2025

https://github.com/rajput-hemant/cryptography

A handy Crypto CLI for exploring cryptographic algorithms learned in university. Dive into the world of cryptography with ease! 🔐✨

bun cli crypto cryptography

Last synced: 19 May 2026

https://github.com/embetrix/meta-satobox

Satobox is an open-source, Yocto-based, privacy-focused and secure bitcoin full node solution designed for embedded linux devices.

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Last synced: 01 Nov 2025

https://github.com/humanjavaenterprises/nostr-nsec-seedphrase

The nostr-nsec-seedphrase repository offers a TypeScript library that converts Nostr nsec keys into mnemonic seed phrases, enhancing the readability and management of keys within Nostr applications. This approach mirrors Bitcoin's use of seed phrases, emphasizing the importance of secure storage and careful handling of these keys.

bitcoin cryptography decentralized-protocols digital-signatures key-management mnemonic-seed-phrases nostr public-key-infrastructure security

Last synced: 31 Aug 2025

https://github.com/denselance/hight-python

HIGHT block cipher implementation in Python3 based on original paper by Hong et al. Includes the encryption and decryption functions for HIGHT.

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Last synced: 31 Dec 2025

https://github.com/keyan/e2e_voting

Simulated end-to-end verifiable secure election protocol

cryptography elections voting

Last synced: 03 Apr 2025

https://github.com/daflh/deriving

Derives address and private key from mnemonic phrase for Bitcoin and other altcoins

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Last synced: 19 May 2026

https://github.com/musooo/frequency-analysis

cryptography

Last synced: 04 Apr 2025

https://github.com/brenoepics/rsa-hex-gen

Generate an RSA key pair in hexadecimal format.

asymmetric cryptography encryp hex pair-generator rsa

Last synced: 27 Mar 2025

https://github.com/harmon758/the-cryptopals-crypto-challenges

The Cryptopals (Matasano) Crypto Challenges

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Last synced: 17 Mar 2025

https://github.com/christoffercarlsson/stedy

An easy-to-use cryptography library for JavaScript

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Last synced: 13 Sep 2025

https://github.com/rdner/uncrypticated

cryptography in Go made easy as it should be

cryptography security

Last synced: 15 Dec 2025

https://github.com/nezutero/crypty

abstraction on built in crypto modules

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Last synced: 17 Mar 2025

https://github.com/abennett/cryptlog

A proof of concept for an AES-CBC-based, limited-read log appender.

aes cryptography go log

Last synced: 03 Apr 2025

https://github.com/razenpok/razensoft.xxtea

A simple and fast zero-dependency cryptography cypher for Unity

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Last synced: 15 May 2026

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/dannywillems/ocaml-bls12-381

Fast BLS12-381 implementation in OCaml

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Last synced: 31 Oct 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/danielost/sha-1

SHA-1 (Secure Hash Algorithm 1) implementation.

cryptography secure-hash-algorithm sha-1

Last synced: 13 May 2025

https://github.com/10d9e/fastmerkle

Golang Implementation of Streaming Merkle Root, Proof, and Verify (single leaf) from Luke Champine's paper

cryptography merkleproof merkletree

Last synced: 12 Apr 2025

https://github.com/onlyf0ur/c-hashcracker

A simple and hyperfast HashCracker written in C.

c cryptography hashcracker

Last synced: 17 Mar 2025

https://github.com/azeemmirza/fortuna

Fortuna is a PRNG; it generates cryptographically secure pseudorandom numbers on a computer. It can also be used as a real random number generator, accepting random inputs from analog random sources. Designed by Niels Ferguson and Bruce Schneier.

cryptography psuedo-random random-number-generators

Last synced: 19 Mar 2026

https://github.com/tomerh2001/git-crypt-pipe

Decrypts git-crypt encrypted repositories in Bitbucket Pipelines.

bitbucket bitbucket-pipeline cryptography git git-crypt pipe

Last synced: 03 Mar 2025

https://github.com/matias-gonz/rusty-curves

Elliptic curve implemented using bare rust and math

cryptography elliptic-curves rust

Last synced: 20 May 2026

https://github.com/lemon-mint/highcrypt

A crypto stack built with a proven cryptographic algorithm

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Last synced: 20 May 2026

https://github.com/mehrajlatifli/lm-lock-in-mvvm

Example for Thread, Thread synchronization and Cryptography

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Last synced: 20 May 2026

https://github.com/sebastienrousseau/cmn

A Rust library for accessing a collection of mathematical and cryptographic constants

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Last synced: 28 Mar 2025

https://github.com/andersoncarrilho/sha256_elip

SHA256 and RIPMED160

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Last synced: 07 Mar 2026

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/liblor/applied_cryptography_ethz

Applied Cryptography Lab @ ETHZ

applied-cryptography cryptography ethz lab

Last synced: 12 Jun 2025

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/openzebra/argon2.pure.js

A pure TypeScript/JavaScript implementation of the Argon2

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Last synced: 07 Mar 2026

https://github.com/erhant/enigma-machine

An Enigma Machine in TypeScript.

cryptography enigma-machine typescript

Last synced: 04 Jun 2026

https://github.com/lane-romuald/hyperledger-fabric-for-iot-smart-irrigation-system

This repository hosts a Blockchain network built on Hyperledger Fabric to ensure the secure exchange of data in automated irrigation systems. It features three organizations, RAFT consensus, Fabric CA for certification, and Hyperledger Explorer for network visualization.

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Last synced: 09 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/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/vexcited/iut-r3.09

Module de cryptographie de BUT2 à l'IUT du Limousin.

cryptanalysis cryptography iut-du-limousin rust

Last synced: 08 Sep 2025

https://github.com/oxion7/rc4-rust

RC4 algorithm in rust

algorithm cipher cryptography stream-cipher

Last synced: 14 Jun 2026

https://github.com/odhithsen/hashvault

🔐"HashVault" is an all-in-one locally installed password manager that keeps users' passwords and other sensitive information and credentials safe for all at the convenience of a single master key.

cryptography java javafx password-manager

Last synced: 02 Jan 2026