README

Bornomala Symmetric Key (BSK) stream cipher, is a lightweight encryption library implementing techniques from the research paper 'A Hybrid Cryptographic Scheme of Modified Vigenère Cipher using Randomized Approach for Enhancing Data Security' by Sazzad Saju. This library aims to provide robust data security with an easy-to-use API. For more details, visit: https://bit.ly/cipher-bsk

Installation/Launch

Install the package via Composer:

composer require sham3r/cipher-bsk

Usage

To use in your project get the encrypt and decrypt function from object deconstruction

<?php
    require 'vendor/autoload.php';
    use CipherBsk\CipherBsk;

    $message = "Hajee Mohammad Danesh Science and Technology University";
    $key = "Hstu@5200";
    
    $cipherBsk = new CipherBsk();

    $encryptedMessage = $cipherBsk->encrypt($message, $key);
    echo "Encrypted Message: $encryptedMessage\n";
    
    $decryptedMessage = $cipherBsk->decrypt($encryptedMessage, $key);
    echo "Decrypted Message: $decryptedMessage\n";
    
    // Example output:
    // Encrypted Message: 7B4D5249784F285E6433232166594C6A5A5A3322532A7C4E4F72697D2B4C52515F7400753644674061576C254E47724635612920714C6A21
    // Decrypted Message: Hajee Mohammad Danesh Science and Technology University

Features

Avalanche effect
Immune from frequency analysis attack
Output ranges from ASCII(0-255)

Documentations

Published paper: DOI: 10.5120/ijca2021921290
Online tool: BSK ONLINE

Run the unit test:

vendor/bin/phpunit tests

vendor/bin/phpunit tests/KeyGeneratorTest.php --testdox

vendor/bin/phpunit tests/KeyGeneratorTest.php --testdox --debug

php tests/RandomDebugTest.php

vendor/bin/phpunit --testdox

Unit Test Flags:

Each . represents a passing test.
An F represents a failing test.
An E represents an error.
An R would represent a risky test (e.g., no assertions in the test).

sham3r / cipher-bsk

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