Create a WinZip compatible AES Encrypted Zip

Creates a WinZip compatible AES-encrypted .zip archive

Download Chilkat 32-bit Zip ActiveX (.msi) (includes objects for .zip, .gz, .bz2, and .Z)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

<?php

$zip = new COM("Chilkat.Zip2");

//  Any string unlocks the component for the 1st 30-days.
$success = $zip->UnlockComponent('Anything for 30-day trial');
if ($success != true) {
    print $zip->lastErrorText() . "\n";
    exit;
}

$success = $zip->NewZip('/myZipDir/aes.zip');
if ($success != true) {
    print $zip->lastErrorText() . "\n";
    exit;
}

//  Set properties to indicate that the Zip should be
//  AES encrypted.

//  A value of 4 indicates WinZip compatible AES encryption.
$zip->Encryption = 4;

//  Key length can be 128, 192, or 256 bits.
$zip->EncryptKeyLength = 128;

//  Set the password for AES encryption:
$zip->EncryptPassword = 'myPassword';

//  Add a directory tree to be zipped.  (The files
//  are not compressed at this point -- only references
//  to the files and directories are added to the zip object.)
$recurse = true;
$success = $zip->AppendFiles('c:/temp/a/*',$recurse);
if ($success != true) {
    print $zip->lastErrorText() . "\n";
    exit;
}

//  Create the encrypted zip ("/myZipDir/aes.zip")
//  The path of the zip is what was originally passed
//  to the NewZip method (above).
$success = $zip->WriteZipAndClose();
if ($success != true) {
    print $zip->lastErrorText() . "\n";
    exit;
}

print 'Created AES Encrypted Zip.' . "\n";

?>