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/elfincafe/anngo

Ann*Go is the cryptography tool written in Go language.

cryptography go

Last synced: 12 Mar 2026

https://github.com/typicalhog/randevu-ts

Universal Probabilistic Daily Reminder Coordination System for Anything

algorithms blake3 coordination cryptography daily datetime deterministic foss hash offline probability randevu random rdv rdvt reminders rendezvous ts typescript universal

Last synced: 19 Feb 2026

https://github.com/makarov-danil-school-projects-ctu/cryptography-sha-512

algorithms cpp cryptography hash-functions openssl

Last synced: 17 Mar 2025

https://github.com/anivanchen/pycrypt

A series of standalone scripts built with Cryptography for encryption and decryption of files / strings.

cryptography python

Last synced: 11 Jun 2026

https://github.com/wzyskq/polybius_square_pro

An improved encryption and decryption system from the Polybius Square.

cryptography

Last synced: 14 Jan 2026

https://github.com/rbourgeat/miniblockchain

🔗 A simple Blockchain

blockchain c-plus-plus cryptography

Last synced: 08 Apr 2025

https://github.com/raffadndm/qbot

Telegram bot in Python

barcode-scanner cryptography python qrcode

Last synced: 05 Sep 2025

https://github.com/jhartyharr23/fors33-verifier

Cryptographic verifier for high-integrity data. Prove provenance and ensure immutable audit trails. Automate at fors33.com/products

audit-trail chain-of-custody compliance cryptographic-attestation cryptography cybersecurity cybersecurity-tools data-integrity data-lineage data-protection data-provenance digital-forensics evidence-management forensics immutable-ledger python security-tools sha256 tamper-evident zero-trust

Last synced: 01 Mar 2026

https://github.com/mokkunsuzuki-code/stage354

Stage354: Signature Key Rotation Ledger Layer with Stage178 Assumption, Threat Model, and Guarantee Binding. Transparent key lifecycle tracking, signature key status recording, ledger chaining, and PQC migration-aware verification metadata.

audit compliance cryptography cybersecurity ed25519 evidence gpg key-lifecycle key-rotation ledger ml-dsa pqc provenance qsp signature-verification sigstore supply-chain-security transparency trust verification

Last synced: 23 Jun 2026

https://github.com/mthaler/hasher

Command line tool to create a hash from a given text

command-line-tool cryptography golang hash hashing sha1 sha256

Last synced: 09 Apr 2025

https://github.com/ivanstambuk/openauth-sim

Authentication protocol simulator in Java 17 covering OATH HOTP/TOTP/OCRA, FIDO2/WebAuthn, EMV/CAP, and EUDI wallet/OpenID4VP

authentication cap cryptography emv eudi-wallet fido2 java oath ocra otp simulator webauthn

Last synced: 14 Jan 2026

https://github.com/bmwant/ecc

Elliptic Curve Cryptography algorithms

calculus cryptanalysis cryptography

Last synced: 17 Mar 2025

https://github.com/projects-developer/top-cryptography-projects-with-source-code

Cryptography is the practice and study of techniques for secure communication by transforming plaintext. Top 10 Cryptography Projects Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

aes-communication-security b-techprojects bca-projects communication computer-science-projects computerscienceprojects cryptography diffie-hellman-key-exchange final-year-projects finalyearprojects gif-malware-project m-techprojects mca-projects steganography super-cipher-projects triple-des-projects

Last synced: 07 Jan 2026

https://github.com/i2rys/diffiequantum

Diffie Hellman merged with HQC.

cryptography diffie-hellman hqc merge pqc

Last synced: 05 Sep 2025

https://github.com/mokkunsuzuki-code/stage355

Stage355: Signature Key Status Verification and Revocation Enforcement Layer with signing-time validity checks, Stage354 ledger binding, fail-closed revoked-key rejection, and PQC intent-only protection.

audit cryptography cybersecurity ed25519 evidence fail-closed gpg key-revocation key-rotation key-status ledger ml-dsa pqc qsp signature-verification sigstore supply-chain-security transparency trust verification

Last synced: 23 Jun 2026

https://github.com/yaon-c2h8n2/krypton

Projet réalisé dans le cadre de l'UE Codages & Cryptographie en M1 à l'Université de Bourgogne

cryptography data-compression-algorithms data-encoding

Last synced: 05 Oct 2025

https://github.com/abhayagiri/raho

Python module for simple symmetric encryption built on cryptography

cryptography fernet python python2 python3

Last synced: 25 Mar 2025

https://github.com/alexyer/xxxdh-js

WASM wrapper around xxxdh library implementing Extended Triple Diffie-Hellman key exchange.

cryptography diffie-hellman key-exchange-protocol

Last synced: 17 Jan 2026

https://github.com/rudrowo/aes-cpp

cryptography

Last synced: 06 Oct 2025

https://github.com/rudrowo/rsa-cpp

cryptography

Last synced: 06 Oct 2025

https://github.com/kunalpisolkar24/is_lab

Collection of practical codes for Savitribai Phule Pune University's Information Security Laboratory (310258) .

aes-encryption computer-science cryptography cybersecurity des-algorithm diffie-hellman-algorithm information-security java-cryptography md5-hash rsa-algorithm security-lab sppu-computer-engineering

Last synced: 04 Jul 2025

https://github.com/diegodromer/guardara

Guardara – Seu cofre digital inteligente. De senhas “fortinhas” a criptografia de dar inveja a espião da CIA. 🔐

cloud-security cryptography dart encryption firebase flutter hive mobile mobile-app mvvm open-source password-generator password-manager secure-storage tfa two-factor-authentication

Last synced: 01 May 2026

https://github.com/ohimoiza1205/goldman-sachs-forage-swe-simulation

Crack passwords and suggest security improvements as a Governance Analyst at Goldman Sachs.

cryptography goldman-sachs hashcat password-cracking software-engineering

Last synced: 17 Jan 2026

https://github.com/simplito/privmx-bridge-docker

Docker Compose for PrivMX Bridge.

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

Last synced: 06 Oct 2025

https://github.com/ujangbedog/dpq-chat

A simple, secure peer-to-peer chat app built with Rust. Runs directly in the terminal with end-to-end encryption, post-quantum security (Kyber & Dilithium), and no central server.

chat cli cryptography p2p p2p-chat rust secure terminal terminal-app terminal-chat

Last synced: 06 Oct 2025

https://github.com/robertmcatee/saigo

a simple encryption toolkit written in Go

cryptography encryption

Last synced: 14 Jan 2026

https://github.com/harmin-parra/x509-wrapper

Wrapper for the pyca/cryptography package to query attributes of X509 cryptographic objects in a fast and simple way

cryptography python python3 x509

Last synced: 12 Jun 2025

https://github.com/endurio/ndrd

Endurio Daemon

blockchain cryptocurrency cryptography currency decentralized distributed payment stablecoin

Last synced: 14 Jan 2026

https://github.com/kaushalag29/cryptography

Basic Cipher Codes With Python.Deals With Encryption and Decryption.

books cryptography python-script python2-7

Last synced: 26 Oct 2025

https://github.com/peterfritz/time

Get the current time, timezone, and a language-sensitive representation of the current time in the local timezone based on the user's IP. Create and validate signed date tokens.

cryptography date time

Last synced: 12 Jun 2025

https://github.com/kcbojanowski/cryptographyappproject

App that helps you deal with classical algorithms of cryptography as well as RSA algorithm and Shamir's Secret Sharing Scheme.

cryptography python3

Last synced: 16 Mar 2025

https://github.com/ya2ir/sha1

SHA-1 in Golang

cryptography hashing-algorithm hashing-algorithms sha-1 sha-1-hash

Last synced: 08 Oct 2025

https://github.com/ndpar/spring-crypto-demo

Examples of crypto operations in Kotlin and Spring

bouncycastle cryptography openssl spring

Last synced: 12 Mar 2026

https://github.com/frostbyte012/cryptography-network-security-lab-assignment-nit-sikkim

This repo is all about the cryptography techniques that we use in our daily lives

cryptography encryption-algorithms encryption-decryption network-security python3

Last synced: 26 Jun 2025

https://github.com/incertia/crypto-primer

intro to crypto given to my coworkers at AIS

algebra algebraic-structures cryptography dh diffie-hellman ecc ecdh rsa

Last synced: 18 Jan 2026

https://github.com/pillardevelopment/go_chain

blockchain-network cpp cryptography golang google secp256k1 tendermint-consensus

Last synced: 14 Jan 2026

https://github.com/sambhu431/salt-based-encryption-and-decryption

Securely encrypt and decrypt files and folders using salt-based, password-protected methods. Protect your data from hacking, leakage, and theft.

cryptography datasecurity decryption encryption encryption-decryption fernet fernet-cryptography fernet-decryption fernet-encryption fernet-key pbkdf2 pbkdf2-hmac pythonen salt security

Last synced: 09 Apr 2025

https://github.com/filiprokita/tosha256

This is a Python script that prompts the user to enter a string of text and then calculates its SHA-256 hash using the hashlib library. The resulting hash is then printed to the console.

cryptography data-integrity hash hashing python security sha256 tosha

Last synced: 24 Mar 2025

https://github.com/natharyan/secret-sharing-arithmetic-operations

Shamir's secret sharing to generate shares for arithmetic operations over two secrets.

cryptography cryptography-project secret-sharing shamir-secret-sharing

Last synced: 09 Oct 2025

https://github.com/xm0onh/stateviz.dev

Interactive visualization playground for blockchain data structures. Learn how blockchains organize and store data through hands-on exploration and visual experimentation.

algorithms blockchain cryptography data-structures educational ethereum merkle-trie playground

Last synced: 12 Apr 2026

https://github.com/dbalan/cryptopals

Cryptopals solutions

cryptography go golang

Last synced: 13 Mar 2026

https://github.com/eroydev/bip39-rusty

Rust library for BIP-39 mnemonic system

bip39 bitcoin cryptocurrency cryptography rust

Last synced: 22 Feb 2026

https://github.com/pryority/merkle-next

WIP - I wanted to remake the example website from the Merkletree.js repo in Next.js

cryptography ethereum merkletreejs nextjs react tailwindcss

Last synced: 12 Apr 2026

https://github.com/stafmazayded83/cryptoguardian

Cryptoguardian is a secure wallet application designed to protect your digital assets. It uses advanced encryption methods to ensure that your cryptocurrencies remain safe from unauthorized access.

bitcoin crypto crypto-tools crypto-wallet cryptography github-config matplotlib nodejs pandas seaborn sha256-hash streamlit visualization walletkeytool

Last synced: 14 Apr 2026

https://github.com/inanepain/id-forge

A lightweight, versatile PHP library for generating and encoding unique identifiers. It supports base32, base58, base64, nanoid, snowflakeid, uuid, and ulid, providing fast, secure, and flexible solutions for ID generation and encoding in modern applications.

base32 base58 base64 cryptography encoding id-forge id-generation inanepain library nanoid php snowflakeid ulid unique-identifier uuid

Last synced: 14 Jan 2026

https://github.com/yeshan333/python-cryptography-coding

Classic encryption algorithm: Python implementation

cryptography python

Last synced: 21 Mar 2025

https://github.com/oklein1/cryptography-clojure

Clojure implementation of ciphers

cipher-algorithms clojure cryptography

Last synced: 10 Oct 2025

https://github.com/skygenesisenterprise/crux-256

CRUX-256: Experimental symmetric block cipher combining SPN and ARX architectures

aes-256 api-service cryptography database dns linux macos mail rust windows

Last synced: 14 Apr 2026

https://github.com/crybercorp/thecryptoanarchistmanifesto

The Crypto Anarchist Manifesto by Timothy C. May, written in 1988.

anarchy anonymous bitcoin cryptography dogecoin ethereum freedom manifest monero privacy

Last synced: 06 Apr 2025

https://github.com/pereirar3/cryptography-cipher

Simple and complex encryption algorithms in c++ [objective: learning] - IN UPDATE

cipher-algorithm cpp cryptography

Last synced: 04 Sep 2025

https://github.com/dheurtev/cryptopyutils

A high-level Python3 cryptography library using cryptography

administration cryptography development python python-3 python3

Last synced: 23 Apr 2025

https://github.com/egrace479/asymmetric-cloning-bb84

Continuation of QuForce Innovation Fellows Project to implement asymmetric cloning to eavesdrop on the BB84 protocol.

bb84 bb84-protocol cryptography ionq qkd qkd-protocol quantum-computing

Last synced: 18 Jan 2026

https://github.com/rdrahul123/books

Books must be read as deliberately and reservedly as they were written.

algorithms-and-data-structures blockchain books cryptography datastructures dbms machine-learning mongodb sql

Last synced: 12 Jun 2025

https://github.com/ashiqyousuf/bints

Implement 1024 bit integer in C

c cryptography

Last synced: 25 Oct 2025

https://github.com/anonymouse64/crypto_test_golang

Crypto testing utility for Golang implementations

benchmark cryptography golang

Last synced: 14 Jan 2026

https://github.com/franziskuskiefer/key-store-rs

A key store in Rust

cryptography keystore traits

Last synced: 24 Mar 2025

https://github.com/karim-agha/rc5

RC5 Cipher Implementation in Rust

cryptography rust security

Last synced: 24 Mar 2025

https://github.com/vedbhanushali/cryptoaes

Cybersecurity Project - Repositry contains [windows and android] application which uses Symmetric - Encryption for encrypting any file

aes-encryption cryptography cybersecurity symmetric-key-cryptography

Last synced: 23 Jun 2026

https://github.com/samuel-lucas6/ctx.net

Chan and Rogaway's fully committing AEAD construction using ChaCha20-Poly1305 and BLAKE2b-160.

aead blake2 blake2b chacha20 chacha20-poly1305 chacha20poly1305 committing-aead crypto cryptography key-committing poly1305

Last synced: 27 Mar 2025

https://github.com/raadhshenshahhaseeb/keyless

[WIP] Encode - Explore Expander Bootcamp - Keyless Hackathon

cryptography gnark golang

Last synced: 11 Oct 2025

https://github.com/thibmeu/pepe-debug

Local Privacy Pass debug interface

cryptography privacypass

Last synced: 11 Oct 2025

https://github.com/a-s-russo/eleventh-hour-mystery

Decipher the paragraph of ciphertext in 'The Eleventh Hour: A Curious Mystery' by Graeme Base at the end of the book using a Caesar cipher

caesar-cipher cryptography

Last synced: 29 May 2026

https://github.com/robertoaleman/ra-ultimate-cipher-analyzer

RA Ultimate Cipher Analyzer is a web-based tool designed to analyze encrypted files and suggest the encryption algorithm used based on statistical properties and known patterns.

aes aes-128 aes-256 aes-encryption algorithms code-analysis cryptography cypher rsa rsa-cryptography rsa-decryption rsa-encryption

Last synced: 18 Feb 2026

https://github.com/advaith7joshi/project-nexus

Simplified demonstration of blockchain workflow

blockchain blockchain-technology crypto cryptocurrency cryptography finance

Last synced: 12 Jun 2025

https://github.com/bmoneill/enigma

Enigma machine simulator and Bombe

cipher cli cryptography enigma enigma-machine history

Last synced: 12 Oct 2025

https://github.com/newyaroslav/siphash-cpp

SipHash Headers Only C ++ Library

c-plus-plus cpp11 cpp17 cryptographic-hash-functions cryptography hash library pseudorandom-functions siphash

Last synced: 12 Oct 2025

https://github.com/abdulbasit110/key-logger

An educational Python keylogger that captures keystrokes and securely encrypts logs using `pynput` and `cryptography`. For educational use only.

cryptography cybersecurity encryption keylogger pynput

Last synced: 13 Oct 2025

https://github.com/osennij-morok/korobu

A tool for encryption and decryption written in Rust

cryptography egui rust

Last synced: 10 Sep 2025

https://github.com/oglinuk/sbh

A stateless password manager.

cryptography go hash password password-manager security

Last synced: 13 Oct 2025

https://github.com/sucho6996/shadowsend-a-secure-communication-platform

This is a Java Spring boot and JS React project where sender will send a message which will be encrypted and embedded in an Image provided by the sender and the receiver will be able to see those images with sender's number in his/her inbox . Once the receiver will read the message it'll be deleted automatically for a traceless conversation.

cryptography eureka-discovery-client eureka-server feign-client git github java jpa jwt-authentication jwt-token messaging microservices open-feign platform security spring-boot spring-security steganography

Last synced: 01 Mar 2026

https://github.com/hungrybluedev/python-basic-cryptography

Implemenation of basic Cryptography techniques and algorithms, along with tools useful for analysis.

algorithm cryptography python3

Last synced: 08 Apr 2025

https://github.com/larueli/rsanf05utt

Chiffrement RSA en C dans le cadre d'un cours à l'UTT, école publique d'ingénieurs

c cryptography doxygen mathematics rsa utt

Last synced: 24 Jun 2026

https://github.com/realabbas/offline-blockchain-transaction-signing-private-wallet

A private offline wallet for signing incoming transaction from web interface

cryptography offline public-private-key qrcode signing transaction wallet

Last synced: 29 May 2026

https://github.com/hrichharms/salsa20

Salsa20 stream cipher implemented in Haskell

cryptography salsa20 stream-cipher xor-cipher

Last synced: 08 Apr 2025

https://github.com/moeenn/go-token

Generate crypto-random strings (i.e. tokens) of any length

crypto-random-string cryptography go golang token

Last synced: 11 Mar 2026

https://github.com/seniorbatleo/cryptocart

Secure chat software for your computer.

chat cryptocart cryptography messaging secure security

Last synced: 24 Jun 2026

https://github.com/suprim-corp/kit-backend-base-java

Reusable Java backend toolkit — UUID, JSON, crypto, exception, web & gRPC (dev.suprim)

backend cryptography exception-handling grpc java java-library json maven spring-boot utilities

Last synced: 24 Jun 2026

https://github.com/nunees/trabalho_rsa_unip

Implementação do algoritmo RSA básico.

cryptography python rsa-cryptography

Last synced: 20 Mar 2025

https://github.com/0xcyberlitech/ssh

SSH sur Debian : guide de durcissement, bonnes pratiques, audit et supervision des connexions.

2fa brute-force-protection cryptography debian hardening homelab key-management linux openssh port-forwarding security ssh

Last synced: 07 May 2026

https://github.com/gkbrk/r30sponge.h

Sponge function based on the Rule 30 Cellular Automaton

c c89 c99 cryptography stb stb-library

Last synced: 24 Mar 2025

https://github.com/bkawk/aes-256-cbc-pbkdf2-30k

Polymer2 Web Component for encrypting and decrypting a mnemonic to the CBC encryption mode of AES

aes-cbc cryptography pbkdf2 polymer2

Last synced: 24 Jan 2026

https://github.com/anistark/cryptography

Cryptography Functions Visual

cryptography hash javascript

Last synced: 31 Mar 2025

https://github.com/gabrielmajeri/crypto-data-structures

Data structures in Rust for cryptocurrencies and blockchain-related technologies

blockchain cryptocurrency cryptography merkle-tree

Last synced: 08 Apr 2025

https://github.com/ilyakotsar/imagecrypt

Image encryption with a password using rail fence cipher

cryptography encryption image-encryption rail-fence-cipher

Last synced: 09 Aug 2025

https://github.com/marenkeneshov/marintxtcrypt

Приложение позволяет шифровать введённый текст. Не используйте это приложение в незаконных целях! The application allows you to encrypt the entered text. Do not use this app for illegal purposes! Бұл қосымша енгізілген мәтінді шифрлауға мүмкіндік береді. Бұл қосымшаны заңсыз мақсаттарда пайдаланбаңыз!

cryptography cybersecurity cybersecurity-tools cypher

Last synced: 18 Jan 2026

https://github.com/theognis1002/password-generator-cli

A simple password generator CLI tool

cryptography python3

Last synced: 01 Jun 2026

https://github.com/aleff-github/crypto-toolkit

Offline VSCode extension for encoding, decoding, hashing, JWT decoding, AES utilities, HMAC and Smart Detect directly from the editor context menu.

aes base64 cryptography decoding developer-tools encoding hashing hmac jwt offline-first typescript vscode-extension

Last synced: 25 Jun 2026

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

Extension wrapper for PrivMX Endpoint Swift.

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

Last synced: 29 May 2026

https://github.com/ilyakotsar/audiocrypt

Audio encryption with a password using rail fence cipher

audio-encryption cryptography encryption rail-fence-cipher

Last synced: 18 Mar 2025

https://github.com/andezion/retromessenger

ciphers cpp cryptography messenger retro wxwidgets

Last synced: 16 Jan 2026

https://github.com/greydevv/sha-256

A C implementation of the 256-bit Secure Hash Algorithm (SHA-256).

binary bits c cryptocurrency cryptography sha256 sha256-hash

Last synced: 20 Oct 2025

https://github.com/erik-castro/devsecurity

Colecao de 5 livros tecnicos open-source sobre seguranca de software em portugues (PT-BR): Security-Driven Development, DevSecOps, Analise de Malware, Concorrencia Segura e Criptografia Engenheira. C++17/20, CVEs documentados, 300K+ linhas.

application-security books concurrency cplusplus cryptography cybersecurity devsecops encryption fuzzing malware-analysis open-source owasp post-quantum-cryptography pt-br reverse-engineering secure-coding security thread-safety tls

Last synced: 25 Jun 2026

https://github.com/fboulnois/ring-pkae-example

An example of public key authenticated encryption in Rust

aead crypto cryptography ecdh elliptic-curve-cryptography public-key-cryptography public-key-encryption rust

Last synced: 01 Jul 2025

https://github.com/filiprokita/goodpassword

GOOODPASSWORD is a password generator that uses algorithms to create strong, random passwords. With customizable length and complexity options, it helps users generate secure passwords that meet even the most stringent security requirements.

cryptography password password-generator python python3 randomness security simple