https://github.com/flyq/zkctf

cft cryptography zkp

Last synced: 02 Apr 2025

https://github.com/zerdicorp/hashalgo

Second Attempt to Understand Hashing.

algorithm cryptography hash hashing java sha256 study

Last synced: 02 Apr 2025

https://github.com/mfridman/cryptopals

My solutions for http://cryptopals.com, written entirely in Go, sprinkled with concurrency

cryptography cryptopals go golang

Last synced: 16 Mar 2025

https://github.com/bitcoin-evo/bitcoinevo

BitcoinEvo Core integration/staging tree

bitcoinevo c-plus-plus cryptocurrency cryptography p2p

Last synced: 03 Apr 2025

https://github.com/prasunchakra/EncipherX

A simple Django-based Caesar Cipher application demonstrating basic text encryption and decryption. Currently for learning fundamental cryptographic concepts, experimenting with shift-based ciphers, and later on building upon for more advanced encryption methods.

cipher cryptography django python

Last synced: 16 Sep 2025

https://github.com/dubniczky/cryptography-algorithms

Python implementations of commonly used cryptographic algorithms

algorithms cryptography cryptography-algorithms cryptography-library learning python

Last synced: 23 Jun 2025

https://github.com/rstacks/downunderctf2024-writeup

Writeups for the challenges I attempted at DownUnderCTF 2024.

cryptography ctf ctf-writeups forensics osint reverse-engineering web-exploitation

Last synced: 13 Apr 2026

https://github.com/vaasudevans/ciphers

Implementation of Ciphers in C++ and python

c-plus-plus-11 ciphers cryptography python3

Last synced: 31 Mar 2025

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

This library provides classes and services for symmetric and asymmetric standard cryptographic algorithms based on the .NET cryptography system.

advanced-systems cryptography

Last synced: 14 Jan 2026

https://github.com/arpit-omprakash/cryptex-tools

An educational cryptography toolkit written in Python, designed for learners and hobbyists. It demonstrates classical ciphers, basic cryptanalysis tools, and allows users to experiment with encryption and decryption via a simple command-line interface (CLI).

cipher-algorithms cryptography encryption-decryption python

Last synced: 13 Jun 2025

https://github.com/magical/gimli

Go implementation of http://gimli.cr.yp.to/

cryptography

Last synced: 24 Mar 2025

https://github.com/ntdls/ntdls.nasccl

The NetworkDLS original symmetric cipher algorithm ported to C#.

algorithms cryptography encryption symmetric-encryption

Last synced: 11 Mar 2025

https://github.com/rub-nds/ssh-strict-kex-violations-state-learning-artifacts

Artifacts for the paper "Finding SSH Strict Key Exchange Violations by State Learning", accepted at the ACM Conference on Computer and Communications Security (CCS) 2025.

artifacts attack cryptography cve-2025-32433 cve-2025-32942 ssh statelearning strict-kex vulnerability

Last synced: 25 Jun 2026

https://github.com/themaskedman981/sage-boolean-solver

Implementation of Boolean Arithmetic in SAGE math

cryptography python sagemath

Last synced: 30 May 2026

https://github.com/tsovak/a-cryptographic-hash-function

A Cryptographic Hash Function

cpp cryptography hash-functions

Last synced: 02 Apr 2025

https://github.com/audrastump/hmac-encryption

Client/server socket using HMAC for data authenticity and integrity

cryptography cybersecurity encryption-decryption

Last synced: 13 Jul 2025

https://github.com/stillouyng/crypto_playground

🔐 Crypto Playground – educational project for analyzing encryption algorithms.

cryptography educational low-level rust

Last synced: 18 Apr 2025

https://github.com/rani-abha/cryptography_algorithms

In this repository, I've gathered a collection of cryptographic algorithms that I've learned during my college years and implemented for both learning and practical purposes.

algorithms blacklist cipher-algorithms cryptography digitalsignature firewall-rules playfair-cipher sha1-hash whitelist

Last synced: 06 Jul 2025

https://github.com/yawning/musig2-voi

Go MuSig2 (w/secp256k1) (Mirror)

cryptography cryptography-algorithms go golang musig2 schnorr-signatures secp256k1

Last synced: 11 Mar 2025

https://github.com/alvii147/jwgo

Efficient JWT creation and parsing in Go

cryptography golang jwt

Last synced: 14 Jun 2025

https://github.com/nathancordeiro/magic-box-cipher

The Magic-Box Cipher is my own inspiration drawn from the classical Caesar Cipher, the Playfair Cipher and the monoalphabetic substitution cipher. Do give it a try.

cipher cipher-algorithm cryptography

Last synced: 31 Mar 2025

https://github.com/redik2/binary-cryptography

Простая шифровка файлов через побитовый XOR

cryptography python python3

Last synced: 24 Mar 2025

https://github.com/whoiscipher/passcrypt

Open source password manager on your local machine written in go

cryptography go golang security-tools

Last synced: 11 Mar 2025

https://github.com/chewzzz1014/sem-4-projects-code

arduino course-project coursework cryptography mvc prolog

Last synced: 13 Apr 2026

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/mariankapisinsky/FIT-VUT-NNET

Some of the school assignments from my master's degree study.

asynchronous-programming cryptography digital-forensics fit functional-programming graph-algorithms influxdb networking parallel-algorithms tls-fingerprint vut web-applications

Last synced: 11 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/mrxx0/ft_ssl_md5

An introduction to cryptographic hashing algorithms.

cryptography security ssl

Last synced: 03 Aug 2025

https://github.com/malisha4065/javap2pfiletransfer

Java P2P Secure File Transfer

cryptography java p2p

Last synced: 09 Jun 2026

https://github.com/buhman/rijndael

fast AES implementation for CHICKEN scheme

aes chicken-scheme cryptography

Last synced: 02 Apr 2025

https://github.com/eginez/secret-key-split

Secret key split algorithm

cryptography golang key-management shamir-secret-sharing

Last synced: 21 Jun 2025

https://github.com/projects-developer/be-final-year-engineering-projects

BE Final Year Engineering Projects Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

computer-science-projects cryptography final-year final-year-projects machine-learning malware-detection python-projects web-development

Last synced: 10 Mar 2026

https://github.com/piotrpsz/crypto

Implementation of encryption algorithms in c++17

3-way blowfish cpp17 cryptography gost

Last synced: 17 May 2025

https://github.com/future-rafay/data-encryption-app-python_streamlit

🔐 SecureVault is a Python-based project designed to provide robust encryption and decryption functionalities.

cryptography fernet-encryption hashing-passwords python

Last synced: 18 Jun 2025

https://github.com/onlyf0ur/pqc-zig

Post-Quantum Cryptography for Zig

cryptography post-quantum-cryptography pqc pqcrypto

Last synced: 16 May 2025

https://github.com/mukailasam/rand

A Command-Line tool for generating a cryptographically secure random bytes

cryptographically-secure cryptographically-secure-random cryptography golang hexadecimal random random-bytes random-number

Last synced: 27 Feb 2025

https://github.com/smartibase/smart-transformers

Smart Transformers are a versatile machine learning tool that can be integrated with Pytorch, TensorFlow, and JAX. Smart transformers provide accurate computations required for cryptographic algorithms. These transformers is that they are independent modules, making it efficient to experiment with various research projects related to cryptanalysis

algorithms crypto cryptocurrency cryptography deep-learning jax machine-learning pytorch tensorflow transformer

Last synced: 28 Feb 2025

https://gitlab.com/florent.legname/java-crypto-sandbox

Tests and POCs with standard JDK 18 cryptographic implementations: RSA ciphering and signing, AES encryption etc.

AES cryptography java openjdk rsa

Last synced: 10 Jan 2026

https://github.com/super-e/slip39dotnet

Complete .NET implementation of SLIP-0039 Shamir's Secret Sharing with BIP32 support

bip32 bitcoin cryptocurrency cryptography csharp dotnet mnemonic secret-sharing shamir-secret-sharing slip-0039 vibe-coding

Last synced: 13 Apr 2026

https://github.com/uofsc-fall-2022-math-587-001/homework11

Basics on elliptic curves and their discrete log problem

cryptography discrete-logarithms elliptic-curves go latex math

Last synced: 14 May 2026

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/kamb-code/sha256-r19-preimage

Oracle-free preimage attack on 19-round reduced SHA-256 — paper, solver, and independent verifier

cryptanalysis cryptography cuda gpu hash-functions preimage-attack security-research sha256

Last synced: 27 Jun 2026

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/albinzayedrawan/asymmetric-encryption

Lab Exercises about asymmetric encryption with RSA & Diffie-Hellman.

asymmetric-encryption cryptography diffie-hellman-key-exchange rsa-encryption

Last synced: 19 Jul 2025

https://github.com/alexiza84/nexus

nexuS is an innovative software tool designed to streamline data management and analysis processes. With its user-friendly interface and powerful features, nexuS empowers users to efficiently organize, analyze, and visualize their data.

ansible ansible-role cryptography dotnet emulator graphql groovy mmorpg molecule-scenario nexus private-tracker sonatype torrent wildstar

Last synced: 07 Apr 2026

https://github.com/erhant/fftype

Finite-field arithmetic within the type system.

cryptography elliptic-curves finite-fields polynomials types typescript

Last synced: 05 Oct 2025

https://github.com/soumabha-banerjee/enigmaticbyte

This is a steganography desktop application that hides txt messages inside a cover image. It is completely developed using JavaFX and Cryptography and Steganography both is used. For Cryptography we used a symmetric key technique called Columnar Transposition and for Steganography we used LSB Insertion technique.

cryptography cryptography-algorithms desktop-application java javafx javafx-desktop-apps network-security steganography steganography-algorithms

Last synced: 14 Feb 2026

https://github.com/jcbritobr/gocrypto-study

This study is based on Golang Cryptography for Depeloper book and its examples.

cryptography golang study

Last synced: 06 Oct 2025

https://github.com/russibc/vigenere-cipher

A simple implementation of Vigenère Cipher.

cryptography practice python vigenere

Last synced: 26 May 2026

https://github.com/danielost/ecpoint-wrappers

Convenient wrappers for operations on elliptic curves in Golang.

cryptography ecc elliptic-curves

Last synced: 06 Oct 2025

https://github.com/endurio/ndrd

Endurio Daemon

blockchain cryptocurrency cryptography currency decentralized distributed payment stablecoin

Last synced: 14 Jan 2026

https://github.com/dssgabriel/PRESENT24-attack

Blazing fast MITM attack on a 24 bits implementation of the PRESENT block cipher algorithm.

blockcipher c cryptography maninthemiddleattack maqao optimization

Last synced: 31 Mar 2025

https://github.com/csnp/qramm-cryptoscan

Cryptographic Discovery Scanner - Find every cryptographic algorithm in your codebase and now your quantum risk - part of the QRAMM Toolkit by CSNP

cbom code-analysis cryptography golang post-quantum-cryptography pqc quantum-computing sarif security

Last synced: 13 Jan 2026

https://github.com/hambosto/sweetbyte

A very small, very simple, yet very secure encryption tool.

aes-256 argon2id cryptography decryption encryption golang privacy-tools reed-solomon security security-tools xchacha20-poly1305

Last synced: 07 Oct 2025

https://github.com/mberry/bcrypter

Bcrypt in Rust.

bcrypt cryptography hashing passwords

Last synced: 08 Oct 2025

https://github.com/csnp/qramm-cryptodeps

Cryptographic Dependency Scanner - Identify quantum-vulnerable cryptographic algorithms in your software dependencies. Part of the QRAMM Toolkit.

cbom cnsa cryptography dependencies golang post-quantum post-quantum-cryptography pqc quantum-computing sast sbom security supply-chain-security vulnerability-scanners

Last synced: 13 Jan 2026

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/amdevit/hoddmir

Hoddmir is a library that implements cryptographic helpers using managed .NET APIs and well-known cryptographic libraries to provide classes with useful tools for third-party applications, such as easy-to-use secure storage or in-memory password vaults.

aead cryptography dotnet secure-storage security store

Last synced: 12 Apr 2026

https://github.com/adelmofilho/tenispolar

Implementation ZENIT-POLAR substitution cipher method of encryption

cryptography r-package r-programming

Last synced: 31 Mar 2025

https://github.com/corocoto/asymmetric-cryptography-encrypt-decript-message

Encrypt/decrypt message via using public & private key pair

asymmetric-cryptography cryptography decrypt encrypt rsa-algorithm

Last synced: 09 Oct 2025

https://github.com/cythral/identity-certificates

Signing Certificate Rotation Service for Brighid Identity.

aws cryptography dotnet

Last synced: 14 Apr 2026

https://github.com/daleroberts/asd-coin

Playing with the ASD Commemorative Coin

cryptography

Last synced: 05 Jan 2026

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/yashkarthik/zipfile_passw_cracker

Crack the password of a zip file from a wordlist.

cryptography password-cracker python zipfile

Last synced: 10 Oct 2025

https://github.com/lukman-01/alchemy-eth-bootcamp-projects

Alchemy-Eth-Bootcamp documentation of learning and developing blockchain technology from scratch using JavaScript, Blockchain cryptography and storage,Solidity, Etherjs, Hardhat and indept smart contract writing.

blockchain cryptography erc20 ethereum etherjs evm hardhat javascript nfts smart-contracts solidity

Last synced: 11 Apr 2026

https://github.com/timyiu478/cryptography-i

Cryptography I: foundational cryptographic principles and primitives course by Dan Boneh, Stanford University

aes-encryption cryptography protocol rsa-cryptography security

Last synced: 29 Jun 2026

https://github.com/achnouri/ctf-challenges-write-ups

This repository is a collection of detailed write-ups for CTF challenges/machines/... that i have solved across different cybersecurity training platforms

capture-the-flag cryptography ctf ctf-challenges ctf-writeups cybersecurity hacking hacking-tools hackthebox offensive-security osint pentesting red-team reversing scanning security testing tryhackme vulnerabilities web

Last synced: 18 Feb 2026

https://github.com/krdevanshu06/steganography-app

This project is a steganography tool that allows users to hide and extract secret messages within images using Least Significant Bit (LSB) encoding. The tool provides a user-friendly Streamlit UI for seamless encoding and decoding of messages.

cryptography data-security image-processing lsb-encoding python steganography streamlit

Last synced: 18 Apr 2026

https://github.com/im-a-kookie/cryptographic-aes-server

Simple manual implementation of multithreaded HTTP server via HTTPListenerContext, implementing custom AES virtual streams to provide large files securely.

aes-encryption cryptography http-server multithreaded-server stream-processing

Last synced: 11 Oct 2025

https://github.com/scarlet-oni/Lock-Talk

Console messenger between client and server using TLS 1.3 protocol to encrypt messages

console cryptography cyber-security cybersecurity messaging messanger python python3

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/vladistan/codebreaker-2018-explore

Notebooks to poke around the blockchain for codebreaker 2018 challenge walkthrough

blockchain codebreaker-challenge cryptocurrency cryptography ctf-challenges ctf-writeups cybersecurity reverse-engineering security walkthrough

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/trinetra110/stegoaes

A Python-based steganography tool that hides AES-encrypted messages in images using the Least Significant Bit (LSB) technique. Supports secure encoding and decoding with OpenCV and PyCryptodome.

cryptography steganography

Last synced: 01 Sep 2025

https://github.com/ianacaburian/generate-key-file

Ports juce_KeyGeneration::generateKeyFile() to node.

auth cmake cpp20 cryptography juce keyfile nodejs npm rsa typescript

Last synced: 15 Mar 2025

https://github.com/acmo0/lfsr-fibo

Efficient pure Rust implementation of LFSR in Fibonacci representation

cryptography lfsr lightweight-cryptography random-generation

Last synced: 14 Oct 2025

https://github.com/zhongruoyu/sha2

An implementation of the SHA-2 hash algorithms.

cryptography hash sha256 sha512

Last synced: 18 Jun 2026

https://github.com/danielost/sp-box

S-box/p-box implementation

block-ciphers cryptography p-box s-box

Last synced: 12 Jul 2025

https://github.com/athanclark/purescript-sjcl

Bindings to the Stanford JavaScript Crypto Library

browser cryptography purescript sjcl

Last synced: 24 Jan 2026

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/davidkirwan/number_station

This gem contains a number of utilities to aid in the running of a number station.

cryptography number-station one-time-pad one-time-pad-cipher pseudorandom pseudorandom-number-generator radio

Last synced: 08 Nov 2025

https://github.com/saorsa-labs/saorsa-fec

Core foundational crates for the Saorsa P2P ecosystem: saorsa-types, saorsa-fec (Forward Error Correction), and saorsa-rsps (Reed-Solomon with Proof Systems)

cryptography error-correction fec foundation networking p2p reed-solomon rust types

Last synced: 20 Jan 2026

https://github.com/tnmyk/localblockchain

Centralized and local imitation of blockchain technology using Javascript.

blockchain cryptography javascript

Last synced: 26 May 2026

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

Rust crate implementing a Merkle Tree data structure and Merkle Path proof generation and verification.

cryptocurrency cryptography merkle merkletree rust

Last synced: 22 Jan 2026

https://github.com/primefactor-io/ecc

Implementations of various Elliptic Curve Cryptography primitives such as ECDSA and Adaptor ECDSA over secp256k1

adaptor-signature adaptor-signatures cryptography cryptography-algorithms ecdsa ecdsa-cryptography ecdsa-signature ecdsa-signatures elliptic-curve elliptic-curve-cryptography elliptic-curves schnorr schnorr-signature schnorr-signatures

Last synced: 15 May 2025

https://github.com/primefactor-io/paillier

Implementation of the Paillier cryptosystem alongside its homomorphic operations

cryptography cryptography-algorithms homomorphic-cryptography-scheme homomorphic-encryption homomorphic-encryption-library paillier paillier-cryptosystem

Last synced: 06 Jul 2026

https://github.com/4lessandrodev/cesar-cipher

A simple TypeScript library for Caesar cipher encryption and decryption

cesar-cipher cryptography shift-cipher

Last synced: 30 Jan 2026

https://github.com/zsoulaimane/cryptozombies_game_smart_contract

blockchain cryptography cryptozombies dapp ethereum game html smartcontracts solidity

Last synced: 13 May 2026

https://github.com/project-aico/dna

Transcription between UTF-8 text and DNA bases.

bioinformatics cryptography dsl python yaml

Last synced: 20 Jan 2026

https://github.com/khanhtran0111/Secure-file-encryption-tool

Implement a program to encrypt and decrypt files securely

chacha20 cpp17 cryptography encryption-decryption python3

Last synced: 29 Jun 2026

https://github.com/onyazuka/desu

DES encryption + Triple DES + Multithread version

cpp cryptography des fast

Last synced: 25 Oct 2025

https://github.com/copyleftdev/seccure-edi

Post-quantum encryption for EDI files. Kyber-1024 + XChaCha20-Poly1305.

cli cryptography edi encryption kyber post-quantum rust security

Last synced: 13 Jan 2026

https://github.com/lightxlk/cryptanalyst_sysalt

Worked on an assignment of hex, ascii, and multiple cryptographic techniques.

ascii base64-encoding cryptography hex ipynb-parsing json

Last synced: 23 Jan 2026

https://github.com/UofSC-Fall-2022-Math-587-001/homework8

A bit about distribution of primes and Pollard's p-1 test

cryptography go latex math pollard-p-1 prime-numbers

Last synced: 07 May 2025

https://github.com/kodzonko/sdex-enrypted-communicator

Mobilna aplikacja webowa komunikatora szyfrującego wiadomości metodą SDEx z funkcją skrótu BLAKE3.

blake3 cryptography sdex secure-communication secure-messaging secure-messenger

Last synced: 15 May 2025

https://github.com/loneicewolf/qubes-pentesting

Research on Qubes security. Includes my Progress on My own Attacks on Qubes as well.

attack cryptography loneicewolf qubes

Last synced: 24 Jan 2026

https://github.com/kyj9447/pixseal

Cryptographic image integrity & authenticity verification tool. Detects any image modification via pixel-level validation.

cryptography digital-forensics image-authenticity image-integrity-check image-verification steganography-tool tamper-detection

Last synced: 24 Jan 2026

https://github.com/hidayatarg/blockchain_cryptocurrency_node.js

Building own crypto-Currency, that only has value dependent on those who back it. For security, cryptocurrencies rely on blockchaining: a database organized in such a way that records are kept secure through peer-to-peer networks. Each record is kept within a block, and each block holds a timestamp and link to the block before it. The first cryptocurrency was Bitcoin, implemented in 2009 by Satoshi Nakamoto.

cryptocurrency cryptography

Last synced: 10 Apr 2026

https://github.com/badvibessz/bankingclientserverapp

Client server websocket banking app with GUI

banking client-server cryptography gui json websocket

Last synced: 15 Apr 2026