https://github.com/lihongjie0209/sm-py-bc

SM2/SM3/SM4 implementation in Python based on Bouncy Castle - Pure Python cryptography library

bouncy-castle chinese-crypto cryptography gm-crypto pure-python python sm2 sm3 sm4 zero-dependencies

Last synced: 13 Jan 2026

https://github.com/agnes-chong/owasp-juice-shop-vapt

Writeup for cryptography issue's vulnerability - forged coupon

cryptography ctf ctf-writeups owasp-juice-shop owasp-top-10

Last synced: 06 Feb 2026

https://github.com/csharper63/server_encryption_file_system

This repository contains a server that use symmetric encryption to encrypt user files/folders and asymmetric encryption to share files/folders among users.

asymmetric-cryptography cryptography end-to-end-encryption symmetric-cryptography

Last synced: 19 Jan 2026

https://github.com/diegoperea20/python-cryptography

Use of the python cryptography library to encrypt and decrypt messages symmetrically and asymmetrically, as well as giving digital assignments

asymetric cryptography encryption message python symetric uao

Last synced: 09 May 2026

https://github.com/akhilk07/zama-fhe

Explore detailed technical guides for the Zama FHE protocol. Set up your environment on Linux, Windows, or GitHub Codespace. 🚀💻

bounty bounty-program cli cryptography data-science fhe fully-homomorphic-encryption homomorphic-encryption machine-learning ppml privacy python rust sckiit-learn string tfhe zama

Last synced: 09 May 2026

https://github.com/dchest/hkdf-visualizer

HKDF-Expand Block Visualizer

cryptography hkdf sha256 sha512

Last synced: 22 Feb 2026

https://github.com/uofsc-fall-2022-math-587-001/homework3

Prime factorization and primitive powers mod p

cryptography go latex math

Last synced: 19 Apr 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/catyeo18/visual-cryptography

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

cryptography java

Last synced: 25 Oct 2025

https://github.com/lepresk/pki-infrastructure

Three-tier PKI in Node.js — Root CA, Intermediate CA, signing certificates, chain verification, and document signing

certificate-authority cryptography nodejs pki typescript x509

Last synced: 16 Jun 2026

https://github.com/flucium/aes-poly1305

aes aes-poly1305 cryptography poly1305 rust rustcrypto

Last synced: 25 Oct 2025

https://github.com/hasnainroopawalla/hashbase

A collection of cryptographic hashing algorithms implemented in Python

cryptography hash-functions hashing hashing-algorithms python

Last synced: 25 Oct 2025

https://github.com/3qnrpdwd/project-eternal_nightmare

for portfolio material ransomware

aes cryptography encryption-decryption python ransomware rsa

Last synced: 25 Oct 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/jonas089/toyni

Toyni Stark

contributor-friendly cryptography fri modular rust stark zero-knowledge

Last synced: 20 Oct 2025

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/clats97/keysense

KeySense: highly secure text encryption. Nothing beats it.

chacha20-poly1305 cipher cipher-algorithms cryptography cryptography-algorithms text-encryption text-encryption-decryption trending trending-repositories

Last synced: 16 Oct 2025

https://github.com/clats97/vigenerecracker

A simple python script that will crack the classical implementation of the Vigenere Cipher. It uses a word-list to brute force the correct key and NLTK to identify English words / sentences.

cipher cipher-algorithms ciphers cracking cryptography vigenere vigenere-cipher vigenere-cipher-algorithm

Last synced: 26 Oct 2025

https://github.com/mizcausevic-dev/bls-attestation-broker

Multi-signer attestation broker using BLS12-381 aggregate signatures. N signatures collapse into one 96-byte aggregate verifiable in two pairings. Reference impl with textbook BLS; production should use blst.

agent-governance aggregate-signature ai-governance attestation bls bls12-381 cryptography platform-engineering rust

Last synced: 01 Jun 2026

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/magical/spritz

Spritz cryptographic sponge(-like) function, hash, and stream cipher in Go

cryptography

Last synced: 14 Oct 2025

https://github.com/labgua/rsa_start

Imparare l'uso della crittografia RSA con semplici esempi

cryptography rsa teaching-materials

Last synced: 22 Jan 2026

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/johanns/ref-secure-share

SecureShare is a tutorial and reference implementation of a one-time-use message sharing web-app, developed using Next.JS 14, TypeScript, Prisma, and styled with Tailwind CSS

cryptography next tailwindcss tutorial typescript webcrypto

Last synced: 05 Feb 2026

https://github.com/mrdcvlsc/filecryptographyapp

Android app for file encryption and decryption

advance-encryption-standard aes aes-256 aes-cbc aes256 android android-application android-studio apk cbc confidentiality cryptography data-protection data-security file file-encryption java mobile mobile-application secrecy

Last synced: 09 May 2026

https://github.com/fionn/dining-cryptographers

Unconditional sender and recipient untraceability

cryptography dc-nets dining-cryptographers multi-party-computation

Last synced: 27 Oct 2025

https://github.com/kevin-doolaeghe/key_keeper

Sauvegarde de mots de passe avec chiffrement très simple

console-application cryptography personnal-project

Last synced: 23 Feb 2026

https://github.com/oglinuk/sbh

A stateless password manager.

cryptography go hash password password-manager security

Last synced: 13 Oct 2025

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/latticearc/latticearc

Hybrid Post-Quantum Cryptography Library for Rust - Secure transition to Quantum-Safe Encryption.

aws-lc aws-lc-rs cryptography encryption fips hybrid-encryption ml-dsa ml-kem post-quantum post-quantum-cryptography pqc rust tls tls13

Last synced: 27 May 2026

https://github.com/quintessence-sec/pgp-mfa

proof-of-concept to use pgp as a MFA method

2fa benchmark cryptography golang gpg gpg-encryption mfa

Last synced: 03 Sep 2025

https://github.com/csharper63/client_encryption_file_system

This repository contains a client that interacts with a server API to create account, upload/share files and folders with other users with E2EE.

authentication cryptography drive end-to-end-encryption

Last synced: 06 Feb 2026

https://github.com/bytemare/secp256k1

Go implementation of Secp256k1 based on Fiat-Crypto, with RFC9380 hash-to-curve.

cryptography golang hash-to-curve prime-order-group secp256k1

Last synced: 14 Apr 2026

https://github.com/yermakovsa/erc6492-go

Go library for Ethereum signature verification with EOA, EIP-1271, and ERC-6492 support.

cryptography eip-1271 erc-6492 ethereum go go-ethereum golang signatures wallets web3

Last synced: 01 Jun 2026

https://github.com/orlandos-nl/orlacrypt

cryptography ios swift

Last synced: 12 Oct 2025

https://github.com/osamikoyo/facekid

simple crypto library for c

c crypto cryptography library

Last synced: 28 Jun 2026

https://github.com/adrianklessa/aes

A simple, educational implementation of AES w/ CBC mode of operation

aes aes-encryption cbc-mode cryptography pkcs7 polynomials toy-project

Last synced: 12 Oct 2025

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/thibmeu/pepe-debug

Local Privacy Pass debug interface

cryptography privacypass

Last synced: 11 Oct 2025

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/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/casper64/hai

The 100% console based messaging program using the cryptography library in python; a project I made for my cryptograpghy course.

cryptography python sockets

Last synced: 19 Apr 2026

https://github.com/anonymouse64/crypto_test_golang

Crypto testing utility for Golang implementations

benchmark cryptography golang

Last synced: 14 Jan 2026

https://github.com/jaybrown/superbackeddownloader

macOS shell script and LaunchAgent to automatically download and verify Superbacked updates and auxiliary files

backup bip39 bitcoin blockcrypt btc crypto cryptography linux macos master-password mnemonic plausible-deniability qr-code secret seed-phrase shamir-secret-sharing succession superbacked tails totp

Last synced: 14 Apr 2026

https://github.com/elliotwutingfeng/secret_broadcast

Send encrypted webcam snapshots over Telegram to specific users.

cryptography fernet telegram webcam

Last synced: 20 Oct 2025

https://github.com/fordcois/cryptography

This repository is a documentation of my exploration of cryptography, focusing on creating and cracking ciphers

cryptography

Last synced: 02 Jul 2025

https://github.com/ixgnoy/writeup_picoctf2024

Some notes for myself and passionate friends...

binary-exploitation cryptography forensics general-skills reverse-engineering web-exploitation web-shell

Last synced: 06 Feb 2026

https://github.com/potreic/write-up-tpw-ctf-2024

CTF walkthrough solutions: web exploits (XXE Injection), binary overflows, cracking ciphers, and detecting in digital forensics. Break challenges & cat data.txt | grep flags! 🎯

binary-exploitation capture-the-flag cryptography cybersecurity digital-forensics web-exploitation

Last synced: 06 Feb 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/guilt/gsum

gsum is a versatile command-line hashing tool written in Go, supporting a wide range of cryptographic and non-cryptographic hash algorithms. It offers advanced features like incremental hashing, GPG signing/verification, progress bars, and compatibility with existing Unix and Windows environments.

chatgpt checksum cryptography defense-methods golang grok gsum hashing incremental range utility verification

Last synced: 09 Oct 2025

https://github.com/godaddy/asherah-ffi

Application-layer envelope encryption with automatic key rotation. Rust core with bindings for Node.js, Python, .NET, Java, Ruby, and Go.

cryptography dotnet encryption envelope-encryption ffi go java key-rotation nodejs python ruby rust security

Last synced: 28 Apr 2026

https://github.com/dbalan/cryptopals

Cryptopals solutions

cryptography go golang

Last synced: 13 Mar 2026

https://github.com/pillardevelopment/go_chain

blockchain-network cpp cryptography golang google secp256k1 tendermint-consensus

Last synced: 14 Jan 2026

https://github.com/mahfuzurrahman98/telechipher

This is a system developed as an assignment of a cyber-security course capable of transferring files through a secure communication channel with the support of encrypting data on the sender end and decryption on the receiver end.

aes-encryption chipher cryptography cybersecurity encryption-decryption pysftp rot13 sftp tkinter-gui

Last synced: 08 Oct 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/xorbkpt/encryption-aes-r-pi-pico

TuM Institute for Advanced Study, Advanced Computation, Cryptography: Post Doc Bucket: 1

beginner computer-science cryptography encryption rasberry-pi-pico

Last synced: 24 Mar 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/soyart/gfc

stable branch of gfc, a small go file encryption utility using AES 256 and PBKDF2

aes crypto cryptography encryption rsa

Last synced: 14 Jan 2026

https://github.com/orlowskilp/des-example

DES implementation in Rust

cryptography rust rust-lang symmetric-cryptography

Last synced: 06 Jul 2025

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/endurio/ndrd

Endurio Daemon

blockchain cryptocurrency cryptography currency decentralized distributed payment stablecoin

Last synced: 14 Jan 2026

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/robertmcatee/saigo

a simple encryption toolkit written in Go

cryptography encryption

Last synced: 14 Jan 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/cr0mb/satoshi-sweeper

Satoshi Sweeper is a Bitcoin wallet generator and balance checker. It generates mnemonic phrases, derives Bitcoin addresses (Legacy, Nested SegWit, and Native SegWit), and checks their balances using the Blockstream API.

biputils bitcoin bitcoin-finder bitcoin-recovery bitcoin-stealer bitcoin-wallet cryptography ethereum ethereum-finder ethereum-stealer ethereum-wallet hashlib

Last synced: 09 May 2026

https://github.com/twtiger/crypto

Crypto library in golang

cryptography

Last synced: 14 Jan 2026

https://github.com/munizmat/cryptography-basics

cryptography java nodejs

Last synced: 09 May 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/noot/go-paillier

implementation of the Paillier cryptosystem

asymmetric-cryptography cryptography homomorphic-encryption paillier paillier-cryptosystem

Last synced: 15 Apr 2026

https://github.com/dpetrosy/encryptor-decryptor

My small project encryptor / decryptor written in Python.

algorithm console-application cryptography decoder encoder encoder-decoder encryption-decryption python python3

Last synced: 06 Oct 2025

https://github.com/atticusrussell/hwsw-crypto-xilinx-template

Template for using Xilinx Vivado and SDK with CMPE-661 (HWSW Crypto) projects in a version control friendly way.

cmpe661 cryptography hwsw-crypto version-control vivado xilinx xilinx-sdk xilinx-vivado zybo

Last synced: 07 Feb 2026

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

cryptography

Last synced: 06 Oct 2025

https://github.com/m-torhan/securechat

Secure chat using double ratchet algorithm.

cryptography python

Last synced: 25 Feb 2026

https://github.com/quantumcoinproject/hybrid-pqc

Hybrid Post Quantum Cryptography

cryptography post-quantum-cryptography

Last synced: 01 Feb 2026

https://github.com/matthewcash/esp32-ecdsa

ECDSA (P-256) signing/verification using esp32 hardware accelerators

cryptography ecdsa embedded esp32

Last synced: 17 May 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/filiprokita/pwdgen

Simple command-line utility to generate a random password of specified length.

ascii c cli cli-tool command-line-tool cryptography cybersecurity open-source password password-generation password-generator random-number-generation random-password security utilities

Last synced: 07 Feb 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/schlopp96/mycaesarcipher

Substitution-based cryptographic cipher for encoding plaintext. Works with alphanumeric characters.

caesar-cipher caesar-cipher-algorithm caesar-shift cipher cryptography decode decryption encode encoder-decoder encryption python python-script python3 shift-cipher

Last synced: 08 Feb 2026

https://github.com/dhcgn/crypto

Wrapper of secure encryption implementation to simplify the usage.

cryptography encryption go golang

Last synced: 17 Mar 2025

https://github.com/aniketc068/atick-python

Standalone Python library for PDF digital signatures — PAdES/CMS, USB tokens, Windows store, Indian eSign, timestamps, LTV and a green-tick appearance Adobe shows as valid. Zero dependencies.

adobe cades cryptography digital-signature esign ltv pades pdf pdf-signature pkcs11 python sign-pdf timestamp

Last synced: 16 Jun 2026

https://github.com/seiyakobayashi/seiyakobayashi.github.io

Personal website for blogging

blockchain cryptography ethereum web3

Last synced: 08 Feb 2026

https://github.com/eiblybrasil/php-crypt

A simple php class for encryption.

class cryptography php php72 php73 php74 php80 php81

Last synced: 05 Feb 2026

https://github.com/systemslibrarian/crypto-lab-mpcith-sign

Browser-based MPC-in-the-Head signature demo — additive secret sharing, SHA-256 commitments, Merkle proofs, Fiat-Shamir transform, N-party simulation with hidden-view challenge, toy PERK permutation witness. Post-quantum signatures from hash functions alone. NIST Round 2: Mirath, PERK, FAEST. No backends. No simulated math.

crypto-lab cryptography digital-signatures fiat-shamir mirath mpc-in-the-head perk permuted-kernel-problem post-quantum secret-sharing zero-knowledge

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-grover

Browser-based Grover's algorithm simulation — amplitude amplification, oracle phase kickback, inversion-about-mean diffusion, probability oscillation. AES-128 weakened to 2^64. AES-256 survives at 2^128. The fix is doubling key length. No backends. No simulated shortcuts.

aes amplitude-amplification browser-demo crypto-lab cryptography grovers-algorithm post-quantum quantum-computing symmetric-cryptography

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-falcon-seal

Browser-based Falcon demo — compact NTRU lattice signatures with Fast Fourier Sampling, side-by-side comparison against ML-DSA and SLH-DSA, and implementation security warnings. No backends. No simulated math.

browser compact-signatures crypto-lab cryptography digital-signatures falcon fast-fourier-sampling lattice-based ml-dsa nist ntru post-quantum pqc typescript vite

Last synced: 01 Jun 2026

https://github.com/kevincharm/gfc-fpe

Generalised Feistel cipher for stateless shuffling

cryptography feistel fpe shuffle

Last synced: 07 Sep 2025

https://github.com/systemslibrarian/crypto-lab-lms-xmss

Browser-based Leighton-Micali Signatures (LMS) and Hierarchical Signature System (HSS) demo per RFC 8554 and NIST SP 800-208. LM-OTS + Merkle trees + two-level HSS, with the state-management story told honestly.

crypto-lab cryptography digital-signatures hash-based-cryptography hash-based-signatures hierarchical-signature-system hss leighton-micali-signatures lm-ots lms merkle-signatures merkle-tree nist-sp-800-208 post-quantum-cryptography rfc-8554 sha-256 stateful-signatures winternitz xmss

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/postquantum-jwt

PostQuantum.Jwt — Modern post-quantum hybrid JWT library for .NET 10 using X-Wing (X25519 + ML-KEM-768) and ML-DSA signatures.

cryptography csharp dotnet hybrid-cryptography jwt ml-dsa ml-kem post-quantum pqc security tokens x-wing

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-hawk

Browser-based educational demo of HAWK — the only lattice-based candidate in NIST's Round 2 Additional Signatures process. Integer-only arithmetic, discrete Gaussian sampling over Z with fixed tables, no rejection loop. Side-by-side with Falcon and ML-DSA.

constant-time crypto-lab cryptography digital-signatures discrete-gaussian-sampling falcon hawk hawk-signatures integer-only lattice-cryptography lattice-isomorphism-problem lattice-signatures ml-dsa module-lip nist-additional-signatures nist-round-2 post-quantum-cryptography

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-aes-modes

Browser-based AES modes demo — ECB, CBC, CTR, GCM, and CCM with live padding oracle attack. Real WebCrypto operations, ECB penguin visualization, Bleichenbacher oracle, and authenticated encryption breakdown. No backends. No simulated math.

aes aes-cbc aes-ctr aes-ecb aes-gcm authenticated-encryption bleichenbacher block-cipher browser ccm crypto-lab cryptography padding-oracle typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-frost-threshold

Browser-based demo of FROST threshold signatures — t-of-n signing with RFC 9591, frost-ed25519 compiled to WASM. No single party holds the key. Any valid subset signs.

cryptography digital-signatures ed25519 elliptic-curve-cryptography frost shamir-secret-sharing threshold-signatures

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-hqc-vault

Browser-based HQC demo — Hamming Quasi-Cyclic post-quantum KEM with perfect correctness, Reed-Muller/Reed-Solomon decoding, and three-way comparison against BIKE and ML-KEM. No backends. No simulated math.

aes-256-gcm browser code-based crypto-lab cryptography hqc kem nist-pqc post-quantum quasi-cyclic reed-muller reed-solomon typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-mac-race

Browser-based MAC demo — HMAC, CMAC, Poly1305, and GHASH compared with live length extension attack, timing attack, and nonce reuse demonstrations. Real WebCrypto operations. No backends. No simulated math.

aes-gcm amc browser cmac crypto-lab cryptography ghash hmac length-extension-attack message-authentication nist poly1305 timing-attack typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-dilithium-reject

Browser-based demo of ML-DSA (FIPS 204) rejection sampling. Live iteration feed, rejection-reason breakdown, acceptance histograms, and the timing side-channel tradeoff — why variable signing time is a feature, not a bug.

constant-time crypto-lab cryptography crystals-dilithium digital-signatures dilithium fiat-shamir-with-aborts fips-204 implementation-security lattice-cryptography lattice-signatures lyubashevsky ml-dsa ml-dsa-65 post-quantum-cryptography rejection-sampling timing-side-channel

Last synced: 01 Jun 2026

https://github.com/irfan-manitechnest/sodium-crypto

Modern PHP 8.3+ encryption library using libsodium – secure symmetric & asymmetric (Fidelius-style) encryption, signing, and password hashing.

cryptography fidelius libsodium php

Last synced: 13 Jan 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/1-5pool/jmessage-security-project

JMessage: Encrypted Messaging System with Security Analysis This project implements an end-to-end encrypted messaging system using ECDH, ChaCha20, and ECDSA. It also demonstrates a padding oracle attack, showcasing both secure system design and vulnerability exploitation techniques.

chat-application cryptography end-to-end-encryption golang padding-oracle-attacks

Last synced: 08 Feb 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/systemslibrarian/crypto-lab-stego-suite

Browser-based steganography suite — LSB substitution, DCT-domain hiding, and adaptive embedding with live chi-squared steganalysis. Hide the message, not just the content.

browser-crypto chi-squared-test covert-channel crypto-lab cryptography dct digital-watermarking image-processing lsb-steganography privacy security steganalysis steganography typescript vite

Last synced: 01 Jun 2026