Verify a Zip's Password

Demonstrates how to verify the password for an encrypted or password-protected zip archive.

Download Chilkat .NET for 2.0 / 3.5 Framework

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Chilkat.Zip zip = new Chilkat.Zip();

bool success;

//  Any string unlocks the component for the 1st 30-days.
success = zip.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show(zip.LastErrorText);
    return;
}

//  To verify a password for a Zip, the Zip must be opened:
success = zip.OpenZip("myProtected.zip");
if (success != true) {
    MessageBox.Show(zip.LastErrorText);
    return;
}

//  Set the password to be verified:
zip.DecryptPassword = "secret";

bool passwordOk;
passwordOk = zip.VerifyPassword();
if (passwordOk == true) {
    MessageBox.Show("Password is correct.");
}
else {
    MessageBox.Show("Password is incorrect.");
}

zip.CloseZip();