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

https://github.com/redinfinitypro/scientificsharp

Rating: (5/10) The code is a Windows Forms application for a basic scientific calculator, allowing users to perform mathematical operations like addition, subtraction, multiplication, division, trigonometrics, and logarithms.

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Last synced: 06 Apr 2025

https://github.com/jakubriegel/geffe-generator

Functional style implemented Geffe cryptographic stream generator

cryptographic-keys cryptography functional-programming geffe-generator scala tailrecursion university

Last synced: 27 Mar 2025

https://github.com/fpoirotte/cryptal-hash

An implementation of the Cryptography Abstraction Layer based on the hash PHP extension

cryptal crypto cryptography hash php

Last synced: 26 Jun 2025

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

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

aes cryptography encryption firebase firestore flutter symetric-encryption

Last synced: 09 Apr 2026

https://github.com/notmorphus/overthewire-krypton

This is the OverTheWire wargame repo for Krypton

algorithms cryptanalysis cryptography krypton overthewire

Last synced: 18 Feb 2026

https://github.com/dlarocque/aes

Advanced Encryption Standard (AES)

c cryptography encryption

Last synced: 09 Nov 2025

https://github.com/rafaeldelucena/ine5429

Encryption Algorithms in Python

cryptography python

Last synced: 14 Jun 2025

https://github.com/archethic-foundation/libgo

Archethic Golang SDK

archethic blockchain cryptography golang

Last synced: 18 Feb 2026

https://github.com/archisman-mridha/shamir-secret-sharing-protocol-in-rust

Implementing the Shamir Secret Sharing algorithm in Rust

cryptography cryptography-algorithms galois-field lagrange-interpolation rust secure-computation shamir-secret-sharing

Last synced: 08 Sep 2025

https://github.com/nasriyasoftware/authcrypto

AuthCrypto is a versatile cryptographic toolkit for handling JSON Web Tokens (JWT), password hashing, and secure token generation and verification. It provides robust methods for creating and managing JWTs, hashing and verifying passwords with secure algorithms, and generating cryptographically strong random values for various use cases.

authentication cryptography encryption hashing hashing-library hashing-passwords jwt jwt-auth jwt-authentication jwt-token md5 sha1 sha256 sha512 token token-generator

Last synced: 20 Jan 2026

https://github.com/rokoss21/enigmo

🔐 Privacy-first messaging platform with end-to-end encryption. Flutter client + Dart server. Ed25519/X25519 cryptography, WebSocket real-time communication, zero-knowledge architecture.

cross-platform cryptography dart e2ee encryption flutter messaging mobile-app monorepo privacy real-time security websocket zero-knowledge

Last synced: 17 Jan 2026

https://github.com/telkomdev/jcrypsi

Custom crypto utility for Java Virtual Machine and Android (Digest, AES, HMAC, RSA, RSA Digital Signature)

aes android cryptography hash hmac java rsa

Last synced: 20 May 2026

https://github.com/z3ntl3/rsa-node

This repo represents what I've learned from cryptography RSA algorithm

cryptography cryptosystem rsa

Last synced: 03 Apr 2025

https://github.com/PeaceFounder/TallyProofs.jl

Cryptographic core for E2E verifiable voting system with everlasting privacy and coercion resistance via post-cast isolation

cryptography evoting

Last synced: 06 Apr 2026

https://github.com/logalexus/polard

RSA Keys analyzer

cryptography factorization fastapi pollard-rho public-key rsa vue yafu

Last synced: 18 Apr 2026

https://github.com/ahf/orbis_example

Orbis: Example Application

consistent-hashing consistent-hashing-library cryptography erlang

Last synced: 22 Mar 2025

https://github.com/jiahaoxiang2000/sbox-bgc

use the smt solver to find the sbox implementation

cryptography sbox smt

Last synced: 18 Mar 2025

https://github.com/al-aminazad/creating-jwt-token-using-node.js-crypto-library-both-manually-and-jsonwebtoken-npm

I have created a JWT(JsonWebToken) both manually and using Node.js jsonwebtoken npm. Manually I have used crypto library. It really helps me to understand about JWT , like how it works. By reading the documentation I have cleared it out.

cryptography hmac-sha256 jsonwebtoken nodejs

Last synced: 20 May 2026

https://github.com/fionn/lagrange-polynomial

Numerical Lagrange polynomials over 𝔽ₚ

cryptography lagrange-polynomial-interpolation numerical-methods

Last synced: 13 Jun 2026

https://github.com/panagiotiskots/enigma-machine-simulator

A C-based simulation of the Enigma machine encryption process

c cryptography encryption encryption-algorithms encryption-decryption enigma enigma-machine enigma-simulator history

Last synced: 27 Jun 2025

https://github.com/gonzafg2/quantumssh

Memory-safe, post-quantum-first SSH server in Rust. Open source, no NDAs, no exceptions.

apache-2 cryptography infrastructure memory-safe post-quantum-cryptography rust security ssh

Last synced: 21 May 2026

https://github.com/dyne/clj-openssh-keygen

A platform-independent Clojure library to genereate OpenSSH compliant key-pairs without using ssh-keygen

authentication cryptography keygen keypair ssh ssh-key

Last synced: 07 Mar 2026

https://github.com/abdulbasit110/file-security-software

Python-based file security software that supports AES, RSA, and basic encryption methods for secure file encryption and decryption.

aes-encryption cryptography encryption-decryption python security

Last synced: 15 Jun 2026

https://github.com/tomeffect0613/rsacrack

Obtain the passphrase of a private key (id_rsa), this tool uses the ssh-keygen binary to perform a brute force attack until a successful collision occurs.

bruteforce-attacks c cracking cracking-password cryptography ctf experiments factorisation maths password reverse-engineering rsa rsa-cryptography ssh

Last synced: 11 Apr 2025

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

Last synced: 04 Apr 2025

https://github.com/jaymoneyjay/spring21-automated-decryption

Automated decryption of classical ciphers with neural networks.

cryptography neural-networks python security

Last synced: 17 Aug 2025

https://github.com/grakshith/shamir-secret-sharing

A basic implementation of Shamir Secret Sharing

cryptography interpolation secret-sharing shamir-secret-sharing

Last synced: 14 May 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/claby2/3color-zkp

🎨 Zero-Knowledge Proof Implementation for Graph 3-Coloring

3color cryptography go graph-theory zkp

Last synced: 06 Apr 2025

https://github.com/jrtib/secure-file-transfer-protocol

Secure file transfer protocol that utilizes RSA encryption for key exchange and SSL/TLS for secure communication.

cryptography file-transfer-protocol os python rsa-encryption socket ssl

Last synced: 26 Jun 2025

https://github.com/towre676-cloud/tau_crystal

Lean 4 CI: 3× faster Mathlib caching (Linux, containerized) with one-file workflow

bash cryptographic-manifests cryptography github-actions github-pages lake lean4 numerical-relativity reproducibility verification

Last synced: 09 Apr 2026

https://github.com/antonkueltz/quicy-py

A UDP-Based Multiplexed and Secure Transport

cryptography python3 quic transport udp

Last synced: 24 Oct 2025

https://github.com/psychlone77/election-system-core

A secure, privacy-preserving electronic voting system built with TypeScript and NestJS, implementing blind signatures, threshold cryptography, and end-to-end ballot encryption.

blind-signatures cryptography e-voting-system nestjs postgresql threshold-cryptography

Last synced: 01 Jul 2026

https://github.com/nxm-rs/keycard

Blazing-fast Keycard SDK and CLI in Rust

cryptography ethereum keycard rust smartcard

Last synced: 20 May 2026

https://github.com/oxarbitrage/poseidon-formal

Lean 4 formalization of Poseidon hash — machine-verified permutation bijectivity over the Pallas base field

cryptography formal-verification hash-functions lean4 poseidon zcash

Last synced: 05 Jul 2026

https://github.com/oxarbitrage/orchard-formal

Lean 4 formalization of Zcash Orchard protocol — double-spend prevention, balance integrity, and DH key agreement proofs

cryptography formal-verification lean4 orchard shielded-protocol zcash

Last synced: 05 Jul 2026

https://github.com/weijiangan/simple-xor-encryptor

c cryptography one-time-pad xor

Last synced: 20 Mar 2025

https://github.com/n1ckl0sk0rtge/unlinkablepseudonyms

A java package for using (un)linkable pseudonyms based on RSA.

cryptography encryption gdpr privacy pseudonymisation pseudonymization security

Last synced: 14 Oct 2025

https://github.com/n1ckl0sk0rtge/scrambledb-converter

A REST-Service written with Quarkus for generating and converting unlinkable pseudonyms

cryptography encryption gdpr privacy pseudonymisation pseudonymization scrambledb security

Last synced: 06 Apr 2025

https://github.com/mikebrown0409/project-fuse

Zero-knowledge proof system for verifiable compliance envelopes. Proves compliance checkers executed correctly without revealing sensitive data. Built with RISC Zero zkVM. Phase 1 complete.

audit compliance cryptography gdpr privacy-preserving regulatory-compliance risc-zero rust soc2 zero-knowledge-proofs zkp zkvm

Last synced: 11 Jan 2026

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/tenze21/cryptographic_verifiable_document_issuer

Building it as a part of spring semester 2025, PRJ202.

cryptography dapp digital-signature ethereum merkle-tree

Last synced: 20 Apr 2026

https://github.com/alex-snd/cardancipher

🔓 The project is intended for easy reading of the plaintext from the ciphertext obtained using the Cardano cipher.

cryptography

Last synced: 15 Jun 2025

https://github.com/gausix/enigmify

This project is a simple implementation of the Enigma machine in Rust. It allows users to input a message, configure the rotor and reflector settings, and encrypt or decrypt the message.

cli cryptography enigma-machine rust security

Last synced: 07 Jul 2025

https://github.com/riyamishra28/cryptotools

Created an Application for Information System Security (ISS) Lab, where we implemented the following algorithms: 1. Diffie Hellman-MIMT Attack 2. Miller-Rabin Primality Test 3. DES-Differential Cryptanalysis

android-application cryptography

Last synced: 15 May 2026

https://github.com/marcin-filipiak/qt_md5checker

md5 checker

cryptography files md5

Last synced: 05 Apr 2025

https://github.com/iotexproject/rs-proximity-gaps

Lean 4 formalization, Python verification, and manuscripts for two ePrint papers on FRI proximity gaps above the Johnson radius (Chai & Fan, IoTeX, 2026) — ePrint 2026/861 + 2026/858.

action-orbit correlated-agreement cryptography ethereum formal-verification fri interactive-oracle-proof johnson-bound lean4 mathlib proximity-gap reed-solomon stark succinct-proofs zero-knowledge-proofs zk-stark

Last synced: 01 Jul 2026

https://github.com/joakimch/secure-password-scheme

Manage your passwords in a secure way (accessible to all your devices) without needing to store them anywhere or sync any data; since they're procedurally generated (on demand).

cryptography password-manager passwords security

Last synced: 22 Mar 2025

https://github.com/danielost/big-numbers

BigNumber implementation in Golang

bignumber cryptography

Last synced: 13 May 2025

https://github.com/13point5/shrencryption

Simple Human Readable Encryption

cryptography encryption-algorithm web-app

Last synced: 14 Mar 2025

https://github.com/nsubiron/crypto

Few handy wrappers around OpenSSL's libcrypto.

crypto crypto-library cryptography cryptography-library openssl password-digest random-number-generators secure-string

Last synced: 20 Mar 2025

https://github.com/tniessen/zkp-volte-patarin-nachef-c

Implementation of the zero-knowledge protocol due to Volte, Patarin, and Nachef (2013) in plain C

academic cryptography zero-knowledge-proof

Last synced: 20 Mar 2025

https://github.com/uriva/overcom

P2P JSON passing between public key owners

cryptography decentralized-applications

Last synced: 05 Jul 2026

https://github.com/catyeo18/visual-cryptography

Visual cryptography illustrated in 2-bit and 3-bit encryption (Java)

cryptography java

Last synced: 05 Jul 2026

https://github.com/danielost/fips-140-3

FIPS (Federal Information Processing Standard) 140-3 benchmark for validating the effectiveness of RNGs.

cryptography fips-140-3

Last synced: 13 May 2025

https://github.com/vatshayan/new-cipher-project

Newly Designed cipher. it is first in world. Named as Ambani Cipher

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Last synced: 01 Jun 2026

https://github.com/dbosk/otpkx

Towards Perfectly Secure and Deniable Communication Using an NFC-Based Key-Exchange Scheme

cryptography deniability paper

Last synced: 19 Jan 2026

https://github.com/sur-ser/symmorph-cli

CLI tool for encrypting and decrypting files using the SymmetricMorph cipher.

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Last synced: 07 May 2026

https://github.com/aowangphilly/cryptsenal

Python Cryptography Package

cryptography python

Last synced: 31 Oct 2025

https://github.com/amagioss/slv-action

Sets up the SLV CLI and helps in injecting vault secrets as masked environment variables for workflows to consume.

credentials credentials-helper cryptography decrypt encryption github-actions github-secrets secrets secrets-manager slv

Last synced: 20 Oct 2025

https://github.com/luhluh-17/kubli

A Python-based file encryption tool that securely encrypts and decrypts files and directories using Fernet symmetric encryption. Features filename obfuscation, interactive CLI interface, and batch processing capabilities.

cryptography python

Last synced: 23 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.

c complexity-study computer-engineering computer-science-and-engineering constant-weight-word cryptography cryptography-and-architecture-for-computer-securit cww daniel-j-bernstein djb insertion-in-array insertion-series polimi porting porting-python-to-c python-to-c

Last synced: 17 Jun 2026

https://github.com/sorairolake/camellia-zig

Camellia block cipher written in pure Zig

block-cipher camellia cipher cryptography zig zig-library ziglang

Last synced: 05 Apr 2025

https://github.com/nglaeser/gtm-ss

Girls Talk Math - Secret Sharing packet & spring activity

cryptography

Last synced: 08 Apr 2026

https://github.com/haithamaljabbari/crabcrack

CrabCrack is a hash cracking tool written in Rust

cryptography cybersecurity hacking hash hashcracker programming rust

Last synced: 22 Mar 2025

https://github.com/mlziade/keycrypt

A fun and challenging puzzle website. You can create puzzles for friends and other players to solve! Only then can they decrypt your message...

cryptography django game puzzle puzzle-game

Last synced: 15 May 2026

https://github.com/nglaeser/cryptotex

Flexible LaTeX template for cryptography research & conferences (WIP)

cryptography utils wip

Last synced: 08 Apr 2026

https://github.com/bshankar/pyrite

A minimal (insecure, incomplete) implementation of a bitcoin like cryptocurrency

cryptocurrency cryptography javascript nodejs

Last synced: 02 May 2026

https://github.com/skitsanos/text-into-image

Demonstration of steganography with encoding text into an image

canvas crypto cryptography javascript morse-code morse-encode steganography steganography-algorithms steganography-application steganography-encoding

Last synced: 30 May 2026

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

Shamir's secret sharing with beaver's multiplication to generate shares of an arbitrary arithmetic function given by the user with two secret values as the variables

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

Last synced: 22 Mar 2025

https://github.com/d-thatcher/hybridcryptosystem

A library of functions built around PyCrypto that implements a asymmetric encryption of public keys with symmetric encryption of files

cryptography hybridencryption python

Last synced: 30 Apr 2026

https://github.com/obirikan/caesar-cipher-encoder-decoder

🔐This project implements a modular Caesar cipher for encoding and decoding English alphabetic messages. It's structured in a clean, maintainable folder-based architecture using Python functions and modules.

cryptography

Last synced: 27 Jun 2025

https://github.com/cadeke/lets-go

lets-go is a simple CLI application written in Go for encrypting and decrypting files.

cli cryptography decryption encryption golang

Last synced: 05 Jun 2026

https://github.com/jameskabbes/cryptography

Package for easy implementation of professional encryption algorithms

cryptography pypi-package python

Last synced: 08 Apr 2026

https://github.com/carlosmakin/enigma-cli

A simple command-line interface for encrypting and decrypting data.

cli cryptography dart

Last synced: 24 Aug 2025

https://github.com/cryptocoin-wallets/exodus-core-fast-crypto-blockhain-plugin-walletconnect

Exodus New Feature Development is an open-source initiative enhancing the capabilities of the Exodus application for secure digital asset management. Join us in contributing innovative features and improving the Exodus ecosystem.

blockchain-plugin crypto cryptography exodus-api exodus-app exodus-core exodus-geteway exodus-payment exodus-wallet exodus-wallet-web3 exodus-wallets fast-api javascript wallet-connect wallet-connector wallets

Last synced: 26 Mar 2025

https://github.com/roger-29/dat159-crypto

⛓ Cryptography

cryptography java

Last synced: 29 Aug 2025

https://github.com/rakin406/cryptography

Learning cryptography

cryptography

Last synced: 13 Sep 2025

https://github.com/blamejs/pki

Pure-JavaScript PKI toolkit that owns its stack — X.509, ASN.1/DER, CMS, PQC-first.

asn1 cryptography nodejs pki post-quantum webcrypto x509 zero-dependencies

Last synced: 04 Jul 2026

https://github.com/tiwarishubham635/optimized-aes-visualizer

Optimizes AES Encryption-Decryption Algorithm with SHA-512 and visualizes it

aes cryptography encryption

Last synced: 30 Mar 2025

https://github.com/anshuman-singh-93/agrichain-frontend

blockchain cryptocurrency cryptography dapp

Last synced: 05 Oct 2025

https://github.com/kevin-fagan/simplified-aes

Simplified AES

cryptography education python s-aes saes simplified-aes

Last synced: 21 May 2026

https://github.com/projects-developer/top-40-python-projects-for-beginners-to-advanced

Python is a popular and versatile programming language that is widely used in various industries, including web development, data science, artificial intelligence, and more Top 40 Python Projects. Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

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Last synced: 04 Jan 2026

https://github.com/cybergaz/cryptography

Interactive CLI for exploring cryptographic algorithms, implemented in rust

cli cryptography rust

Last synced: 14 Mar 2025

https://github.com/thevickypedia/authentication

Authentication methods

cryptography rust-lang

Last synced: 06 Apr 2025

https://github.com/ilhamghaza/lockflare

cryptography flutter flutter-app gunadarma

Last synced: 01 Jan 2026

https://github.com/snowkluster/unseen

A modern go cli tool for hashing and analysing the type of hash

analyzer cli cryptography golang hashing modern

Last synced: 15 May 2026

https://github.com/rewired-gh/d-box-app

A trustworthy vault app utilizing state-of-the-arts algorithms

client cross-platform cryptography flutter vault

Last synced: 15 May 2026

https://github.com/georgiifirsov/decrypt

My research about data encryption. The main question is: is it possible to find out a cipher by encrypted word only? I use some machine learning algorithms to classify encryption methods.

cryptography encryption-methods jupyter-notebook machine-learning python research