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Set password on Zip file using DotNetZip

I'm using DotNetZip to zip my files, but I need to set a password in zip.

I tryed:

public void Zip(string path, string outputPath)
    {
        using (ZipFile zip = new ZipFile())
        {
            zip.AddDirectory(path);
            zip.Password = "password";
            zip.Save(outputPath);
        }
    }

But the output zip not have password.

The parameter pathhas a subfolder for exemple: path = c:\path\ and inside path I have subfolder

What is wrong?

like image 819
Jean Carlos Avatar asked Oct 18 '16 18:10

Jean Carlos


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Can I set a password for a zip file?

Right-click on the Zip file you wish to password protect. Choose WinZip. Click Encrypt. WinZip will ask for a password and then encrypt all files currently in the Zip file.

Why can't I password protect a zip file?

Windows 10 only offers a way to encrypt a zip file, not password protect it. So, to password protect a zip file on Windows 10, you need a third-party app that runs on Windows. An example of such a third-party app is WinRAR.


Video Answer


1 Answers

Only entries added after the Password property has been set will have the password applied. To protect the directory you are adding, simply set the password before calling AddDirectory.

using (ZipFile zip = new ZipFile()) {     zip.Password = "password";     zip.AddDirectory(path);     zip.Save(outputPath); } 

Note that this is because passwords on Zip files are allocated to the entries within the zip file and not on the zip file themselves. This allows you to have some of your zip file protected and some not:

using (ZipFile zip = new ZipFile()) {     //this won't be password protected     zip.AddDirectory(unprotectedPath);     zip.Password = "password";     //...but this will be password protected     zip.AddDirectory(path);     zip.Save(outputPath); } 
like image 102
petelids Avatar answered Sep 20 '22 15:09

petelids