(PHP Extension) ARC4 PRNG (Pseudo Random Number Generator)

Uses the ARC4 stream encryption algorithm as a pseudo random number generator.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$crypt = new CkCrypt2();

// Set the encryption algorithm to ARC4:	
$crypt->put_CryptAlgorithm('arc4');

// We want the encrypted output to be a hex-encoded string.
$crypt->put_EncodingMode('hex');

$key = '000102030405060708090A0B0C0D0E0F';
$data = '12345678';

// Key length is 128 bits in this example.
$crypt->put_KeyLength(128);
$crypt->SetEncodedKey($key,'hex');

// Generate 16 "random" 8-byte blocks, encoded as hex strings.
// This example will generate the identical output each time
// it is run.

for ($i = 0; $i <= 15; $i++) {
    $cipherHex = $crypt->encryptStringENC($data);
    print $data . "\n";
    print $cipherHex . "\n";
    $data = $cipherHex;
}


?>