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

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

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

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2')
$crypt = new COM("Chilkat.Crypt2");

// Set the encryption algorithm to ARC4:	
$crypt->CryptAlgorithm = 'arc4';

// We want the encrypted output to be a hex-encoded string.
$crypt->EncodingMode = 'hex';

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

// Key length is 128 bits in this example.
$crypt->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;
}


?>