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/salvacorts/fr-chat-resttracker

:satellite: P2P Chat Rest Server Tracker

cryptography heroku hug p2p-chat python rest-api tracker-server

Last synced: 15 Mar 2025

https://github.com/mpankajarun/file-encryption-and-decryption

This app is an experiment that will allow people to choose files from their computers and encrypt them client-side with a pass phrase.

cryptography cryptojs javascript

Last synced: 04 May 2026

https://github.com/synpareia/trust-mcp

Identity and trust tools for AI agents — MCP server

agent-trust ai-agents cryptography did identity mcp mcp-server python trust verification

Last synced: 06 May 2026

https://github.com/albertotirla/cryptolibrary

this implements a collection of standard, classical encryption algorythms such as the caesar cifer, rot13 and monoalphabetical substitution

cryptography

Last synced: 03 Apr 2025

https://github.com/aelx01/kyberkeep

An experimental web-based and quantum-safe cryptography password manager with zero-knowledge cryptography

cryptography password-manager post-quantum-signature rust

Last synced: 06 Sep 2025

https://github.com/virgilsecurity/virgil-pythia-net

Virgil Pythia SDK allows developers to implement Pythia protocol to create breach-proof passwords, immune to offline and online attacks.

breach-proof-password cryptography encryption netcore pythia pythia-sdk sdk virgil-pythia

Last synced: 02 Sep 2025

https://github.com/harmim/vut-kry-project2

Cryptography - Project - RSA

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Last synced: 31 Mar 2025

https://github.com/emorilebo/mobile_secrets_vault

Secure secrets management for mobile backend applications with encryption, versioning, and audit logging

aes-gcm cryptography django emori encryption fastapi godfreylebo mobile-backend python secrets-management security

Last synced: 27 Jan 2026

https://github.com/tgalal/python-curve25519-dalek

Python extension module providing group operations on Ristretto based on curve25519-dalek.

cryptography curve25519 elliptic-curves ristretto

Last synced: 16 May 2025

https://github.com/paulchen2713/aes

COM 5335 Network Security Assignment #2 - Advanced Encryption Standard (AES)

aes cryptography encryption matlab nthuee

Last synced: 16 Mar 2025

https://github.com/mananpatel06/information-security-practicals

This is Cryptography And Security Practical.

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Last synced: 13 Jun 2026

https://github.com/isaac-defrain/cryptography

Crypto BIP (Book In Progress)

crypto cryptography python

Last synced: 29 Jun 2025

https://github.com/ahf/orbis_uuid

UUID Generator that uses Orbis.

consistent-hashing consistent-hashing-library cryptography erlang uuid-generator

Last synced: 27 Aug 2025

https://github.com/parisaalizadeh2003/cryptography-tool

A Python-based tool for file encryption and decryption using a custom cipher and wxPython for GUI.

cryptography encription python security-tools wxpython

Last synced: 12 Apr 2025

https://github.com/primetdmomega/bay-cracker

A set of tools for encryption, decryption of messages and to create new cyphers !

cryptography decryption encryption

Last synced: 25 Mar 2025

https://github.com/albinzayedrawan/symmetric-encryption-stream-and-block-cipher

Lab Exercises about stream and block cipher encryption methods.

aes-encryption cryptography rc4-algorithm

Last synced: 04 Apr 2025

https://github.com/efedotof/vaultly

Vaultly — облачное хранилище с end‑to‑end шифрованием и нулевым разглашением. Flutter‑клиент + Spring Boot‑бэкенд. Доверяйте математике!!

aes-gcm cloud-storage cross-platform cryptography end-to-end-encryption file-encryption flutter privacy rsa-oaep security self-hosted shps spring-boot zero-knowledge

Last synced: 25 Apr 2026

https://github.com/m1thrandir225/is-labs

Laboratory Exercises for the Information Security course

algorithms cryptography hashing security swift

Last synced: 16 May 2026

https://github.com/zahidayturan/advanced-encryption-standard-application

This app securely encrypts and decrypts your files by generating keys using the AES algorithm.

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Last synced: 09 Apr 2026

https://github.com/sheroz/crypto_vectors

Cryptography test vectors in Rust

cipher cryptography test test-vectors vector

Last synced: 19 Apr 2026

https://github.com/ketanmehra003/silent-key

A command-line tool designed to provide multi-layered image security by combining advanced encryption (ChaCha20) and custom steganography techniques. This project enables secure image transmission and storage, making it ideal for use cases in defense, privacy protection, and digital content management.

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Last synced: 05 Apr 2025

https://github.com/julyanvdw/cryptographic-chat-app

An encrypted chat application built with python. Implements wireguard security protocol

cryptography customtkinter decryption encryption gui python wireguard

Last synced: 20 May 2026

https://github.com/sv592/secure_file_manager

A lightweight C++ application for secure file encryption, decryption, hashing, and digital signature management.

cmake cpp cryptography

Last synced: 10 Jun 2026

https://github.com/wesfly/frequency-analyzer

Text analyser

cryptography frequency-analysis frequency-analyzer text text-analysis

Last synced: 04 Apr 2025

https://github.com/bromaniac/snuffle

Daniel J Bernstein's crypto system snuffle

c cli cryptography history

Last synced: 27 Mar 2025

https://github.com/missn0body/hide

A simple Blowfish scramble schtick made in C

argument-parsing block-cipher c cipher-algorithms command-line command-line-tool cryptography terminal terminal-based

Last synced: 19 May 2026

https://github.com/dlarocque/aes

Advanced Encryption Standard (AES)

c cryptography encryption

Last synced: 09 Nov 2025

https://github.com/marshallovski/asnk-vas1

little cryptographic algorithm for en- and decrypting text

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Last synced: 27 Mar 2025

https://github.com/sammyne/bip39

Implementation of BIP-0039

bitcoin cryptography mnemonic

Last synced: 17 May 2026

https://github.com/0xliquidglass/caesar

A passwordless file encryption scripts for linux

cryptography encryption pgp

Last synced: 13 Mar 2025

https://github.com/mdziegielewska/algorithms

A collection of algorithms and data structures implemented during university studies.

cryptography fundamental-algorithms numerical-methods operating-system-concepts

Last synced: 13 Mar 2025

https://github.com/simplito/privmx-pki-server

Sample PKI (Public Key Infrastructure) server for PrivMX.

communication cryptography end-to-end-encryption pki privmx

Last synced: 13 Sep 2025

https://github.com/rakibhossain72/xorpass

XORpass is a Flask-based password manager application with MongoDB integration. It allows users to securely store their passwords in a MongoDB database, with encryption applied using their own master password. This ensures that the stored passwords are protected and can only be accessed by the owner.

cryptography encrypted-store flask password-manager

Last synced: 15 Jul 2025

https://github.com/eyes12/caesarjaw-cpp

CaesarJaw provides encryption and decryption functionalities using a simple shift cipher (Caesar cipher). It allows users to: ✅ Encrypt text 📝 ✅ Decrypt text 🔑 ✅ Determine the shift key 🔎 ✅ Attempt decryption without a known key 💡

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Last synced: 16 Jun 2025

https://github.com/cloudnoize/kv-merkletree

Sparse Merkle Tree with arbitrary-length keys efficient range operations, height-reducing extensions, and verification, making it ideal for verifiable key-value storage

cpp20 cryptography key-value merkle-tree

Last synced: 31 Dec 2025

https://github.com/pythoncoderunicorn/simplersa

a simple Python program to learn how RSA cryptography works

cryptography python3 rsa

Last synced: 24 Aug 2025

https://github.com/ppad-tech/aead

Haskell AEAD-ChaCha20-Poly1305

aead chacha20 cryptography haskell poly1305

Last synced: 25 Aug 2025

https://github.com/pymarcus/go_pemkeycertificate

Create a SSL certificate to test and local web development.

cryptography golang ssl-certificates

Last synced: 15 Sep 2025

https://github.com/collapse-logic/collapse

Collapse System Logic — deterministic proof collapse (E→Z→1)

collapse compression cryptography csl determinism formal-methods lean4 logic proof proofs python

Last synced: 14 May 2026

https://github.com/mgsium/_enigma

python 3.6 enigma emulator

cryptography enigma python

Last synced: 30 Jun 2026

https://github.com/tankerhq/identity-ruby

Identity management in Ruby for the Tanker SDK

cryptography encryption privacy ruby sdk security tanker

Last synced: 09 Aug 2025

https://github.com/dragonscypher/galactic-guardians

A fun game to play with friends on the same network

blockchain cryptography opengl pygame socket-programming

Last synced: 18 May 2026

https://github.com/25a0/sts-sphincs

SPHINCS, the hash-based signature scheme, with fast batch signatures

cryptography digital-signature hash-based-signatures post-quantum-cryptography

Last synced: 22 Mar 2025

https://github.com/25a0/authentication-sets

Code and statistics related to authentication sets.

cryptography merkle-hash-trees

Last synced: 22 Mar 2025

https://github.com/hayr-hotoca/react-native-key-generator

256-bit encryption, cipher key generator - native implementation.

256-bit android cipher cross-platform cryptography encryption ios javascript key react react-native typescript

Last synced: 08 Apr 2026

https://github.com/sadijr/pre-desafio-labsec

Pré desafio do Processo Seletivo PBAD/LabSEC 2019/1, necessário para as etapas subsequentes do mesmo.

aes-128 cryptography xor-cipher

Last synced: 30 Jun 2026

https://github.com/isgj/tinkey

A Go port of Tinkey, the command-line tool for Google's Tink cryptography library.

cli cryptography go google key-management security tink

Last synced: 30 Apr 2025

https://github.com/ecsolticia/caeser-cipher-matlab

Caeser Cipher encryption and decryption scripts with a right shift of 2. Written in MATLAB. (WIP)

caeser-cipher cryptography cryptography-algorithms matlab matlab-script modular-arithmetic

Last synced: 18 Mar 2025

https://github.com/joooook/cryptography-lab

BUAA Cryptography Lab

buaa crypto cryptography des

Last synced: 05 May 2025

https://github.com/nico-rodriguez/node-passgen

A Node random password generator.

cryptography password-generator

Last synced: 19 May 2026

https://github.com/vilajj/python-client_server-socket

A simple client-server created with Python, with cryptograpy and threading.

client-server cryptography python socket threading-server

Last synced: 10 Sep 2025

https://github.com/sundarnagarajan/pymultikdf

Python wrappers for bcrypt, PBKDF2 (fastpbkdf2) scrypt (Tarsnap)

bcrypt cryptography fastpbkdf2 pbkdf2 python-wrapper scrypt wrapper

Last synced: 23 Aug 2025

https://github.com/shishirjindal/cryptopals

Matasano's Crypto Challenges in Python

cryptography matasano-cryptopals-challenges python

Last synced: 24 Feb 2025

https://github.com/bouchraakl/java_implementation_of_rsa_encryption_and_decryption_algorithm

This repository contains a Java implementation of the RSA encryption and decryption algorithm using the Java cryptography libraries.

cryptography java rsa-algorithm rsa-cryptography rsa-encryption

Last synced: 14 Mar 2025

https://github.com/romanpecheritsa/onetimesecretapi

This project implements a service for securely storing and sharing one-time secrets (FastAPI, MongoDB)

authx cryptography docker-compose fastapi mongodb motor pytest python

Last synced: 28 Apr 2026

https://github.com/michaeltennyson/advanced-security

The following repository contains programs completed for the advanced security Module

cipher cipher-algorithms cryptography java security

Last synced: 05 Mar 2025

https://github.com/cailllev/parsa

Encrypt and Decrypt Files via RSA

cryptography java rsa

Last synced: 17 Mar 2025

https://github.com/toshydev/ceasar

A Ceasar cipher ROT13 tool

ceasar-cipher cryptography python python-script python3 rot13 security tools

Last synced: 15 Jun 2026

https://github.com/sucho6996/imagecryptosteganography

A simple project of hiding message inside an image after encrypting it built with python

cryptography python steganography

Last synced: 29 Mar 2025

https://github.com/antonmeep/fastpbkdf2_ada

Binding and an Ada wrapper for fastpbkdf2

ada cryptography pbkdf2

Last synced: 16 Jul 2025

https://github.com/alessandroconti11/constant_time-parallel_shuffling

Shuffling arrays in constant time is a common problem in modern cryptography. This project involves analyzing the technique proposed in https://cr.yp.to/2024/insertionseries-20240515.py, and implementing it in C, possibly employing parallelization.

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Last synced: 17 Jun 2026

https://github.com/artemyakovlev94/crpt2

c crpt crypto cryptography

Last synced: 19 May 2026

https://github.com/ryanj93/dotline-client

The DotLine Client :: DotLine is an IM app with end-to-end encryption and several message type support.

chat cryptography end-to-end-encryption instant-messaging

Last synced: 07 Apr 2026

https://github.com/sgnn7/openssl-fips

OpenSSL FIPS-compliant 140-2 cryptographic module canister for Docker container targets.

containers cryptography docker docker-container encryption fips fips-140-2 fips-build fips140-2 openssl openssl-tools security trusted-execution-environment

Last synced: 16 May 2026

https://github.com/s-celles/classicciphers.jl

ClassicCiphers.jl is a Julia package that implements various classical cryptographic ciphers.

cryptography julia-language

Last synced: 03 Feb 2026

https://github.com/richard66nz/encryption-onetimepad

Demonstration python code using pyQT for One Time Pad encryption

cryptography one-time-pad pyqt5 python

Last synced: 06 Apr 2025

https://github.com/richard66nz/encryption-steganography

Demonstration python code using pyQT for steganography encryption

cryptography pyqt5 python steganography

Last synced: 06 Apr 2025

https://github.com/n3m0n8/cybersec-tools

Assortment of tools/programmes related to networking and cybersec with copious notes as I work through the example programmes

cryptography cyber cybersecurity encryption packet-sniffer remote

Last synced: 03 Apr 2025

https://github.com/iosmanthus/homqv-go

One-Pass HMQV and Asymmetric Key-Wrapping https://eprint.iacr.org/2010/638.pdf

cryptography

Last synced: 05 Mar 2025

https://github.com/zerdicorp/paed62_hashing_algorithm

A simple self-written version of the data hashing algorithm.

algorithm cryptography hash hashing-algorithm java paed62

Last synced: 02 Apr 2025

https://github.com/stefandeml/snark-verifier

web-frontent for zkSNARKS on Ethereum based on ZoKrates

cryptography ethereum zksnarks

Last synced: 14 May 2025

https://github.com/richard66nz/encryption-publickey

Demonstration python code using pyQT for public key encryption

cryptography public-key-encryption pyqt5 python

Last synced: 06 Apr 2025

https://github.com/ergus/cryptography-rust-cpp

A simple crate with some cryptographic functions implemented in C++ AND Rust like mirror code.

cpp cryptography inter-language learning rust testing

Last synced: 15 Sep 2025

https://github.com/salrashid123/kmsrand

KMS backed crypto/rand Reader

aws cryptography gcp kms random-number-generators

Last synced: 17 May 2026

https://github.com/thibmeu/quicvarint

Variable-Length Integer Encoding defined by RFC 9000

2msb cryptography rfc9000 typescript varint

Last synced: 17 Feb 2026

https://github.com/richard66nz/pyqt-passwordgenerator

Simple Python code using pyQT to generate pseudo-random passwords

cryptography pyqt5 python

Last synced: 06 Apr 2025

https://github.com/sutterseba/des-python

A simple DES implementation in Python

cryptography numpy python

Last synced: 15 Jun 2026

https://github.com/zerdicorp/paed62_online

Demonstration of the hashing algorithm online.

cryptography demo hashing-algorithm online paed62

Last synced: 02 Apr 2025

https://github.com/thalesgroup/dke-service-setup

Setup guide for Luna Key Broker for Double Key Encryption

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Last synced: 17 Mar 2025

https://github.com/mghorbani2357/necrypt

Necrypt uses AES and RSA to present strong encryption method. It generates new cipher for each encryption with the same RSA and AES key.

aes cryptography encryption-decryption file-encryption python python3 rsa

Last synced: 26 Jul 2025

https://github.com/saadarazzaq/caesar-cipher

Story Encrypter Decrypter

caesar-cipher cpp cryptography file-handling problem-solving

Last synced: 17 Mar 2025

https://github.com/texadactyl/cloaking.jl

This is a file cloaking utility set of APIs written in Julia. It is similar to Cloaking.py and Cloaking.c.

cbc-aes-encryption cryptography cryptography-tools decryption encryption hmac hmac-authentication julia nettle

Last synced: 04 Apr 2025

https://github.com/serene-arc/word-length-matcher

Tool to identify plaintext from ciphertext word lengths

cipher ciphertext ciphertext-attack corpus cryptography plaintext word-length

Last synced: 11 Apr 2025

https://github.com/geikha/cryptography-scripts

Basic cryptograhpy in Python, just for practice

console-application cryptography python python3 scripting

Last synced: 04 Oct 2025

https://github.com/fityannugroho/rot31-lnu

ROT31-LNU is a cipher algorithm that using symmetric key. It is adopted from the previously invented ROT13 and use the same way to encrypt and decrypt.

cryptography encryption php symmetric-key-cryptography

Last synced: 05 Apr 2025

https://github.com/labex-labs/ctf-for-beginners

In this course, you'll dive into the exciting world of Capture The Flag (CTF) challenges. Learn fundamental cybersecurity concepts and practical techniques through hands-on labs covering hidden files, weak passwords, open ports, misconfigurations, log analysis, directory traversal, environment variable leaks, script analysis, network exploits, a...

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Last synced: 25 Oct 2025

https://github.com/aadityapate/cryptography-information-security-lab_semester-v

Cryptography and Information Security Lab repository containing Codes/Solutions, and Assignments/Tasks completed during the coursework.

c cryptography html-css-javascript java security

Last synced: 19 May 2026

https://github.com/topay-foundation/topay_z512

Cross-language 512-bit lattice-based post-quantum encryption library (Rust · Go · JS)

blockchain cryptography encryption-decryption golang javascript rust topayz512

Last synced: 16 Jul 2025

https://github.com/shurlinet/go-hqc

Pure Go implementation of HQC (Hamming Quasi-Cyclic) post-quantum KEM. NIST backup to ML-KEM. Zero dependencies.

code-based cryptography fips-207 golang hqc kem key-encapsulation lattice-alternative nist post-quantum pqc pqclean pure-go quantum-resistant zero-dependencies

Last synced: 29 Jun 2026

https://github.com/Crittora/qripton-sdk-js

A secure SDK for data encryption, decryption, and digital signatures using AWS Cognito authentication. Provides enterprise-grade cryptographic operations with simple API integration.

api-client authentication aws-cognito cryptography data-encryption decryption digital-signature encryption enterprise-security node-js npm-package sdk security typescript