Perl

Open a Zip Archive

See more Zip Examples

Demonstrates how to open a zip, or an encrypted .zip, or a legacy password-protected .zip. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

my $zip = Chilkat2::Zip->new;

# Open a non-encrypted .zip
my $success = $zip->OpenZip('qa_data/zips/sample.zip');
if (!$success) {
    print $zip->LastErrorText, "\n";
    exit;
}

print 'Num entries = ', $zip->NumEntries, "\n";

# ...
# ...

$zip->CloseZip();

# ----------------------------------------------------------------------------
# Open an encrypted zip...

# The two main types of encryption used in ZIP archives are Password-Protected and AES.
#

# ---------------------------------------
# 1. Legacy Password-Protected Zip
#
# This is the older and less secure method of encrypting ZIP archives.
# It provides a basic level of security, but is considered weak by modern standards.
# It is vulnerable to various attacks, including known-plaintext attacks and brute force attacks.
# Although Chilkat allows it, you shouldn't create new zip archives using legacy password-protection.

# ---------------------------------------
# 2. AES Encrypted Zip
#
# AES encryption is a more modern and secure method for encrypting ZIP archives.
# It provides strong encryption based on the AES algorithm, which is widely regarded as secure.
# AES supports different key lengths, typically 128-bit, 192-bit, and 256-bit.

# When opening an encrypted zip, your application only needs to provide the correct password.
# The information about the type of encryption and the key length (if AES) is already embedded within the encrypted .zip.

# Provide the decrypt password because we are opening an existing .zip (decrypting)
$zip->DecryptPassword('thePassword');

$success = $zip->OpenZip('qa_data/zips/encryptedSamples/ziptest_256.zip');
if (!$success) {
    print $zip->LastErrorText, "\n";
    exit;
}

print 'Num entries = ', $zip->NumEntries, "\n";

# ...
# ...

$zip->CloseZip();