Password Protect ZIP

VB C#

using IronZip;
using IronZip.Enum;

// Create empty ZIP with highest compression
using (var archive = new IronZipArchive(9))
{
    // Password protect the ZIP (Support AES128 & AES256)
    archive.Encrypt("P@ssw0rd", EncryptionMethods.Traditional);

    archive.Add("./assets/image1.jpg");
    archive.Add("./assets/image2.jpg");

    // Export the ZIP
    archive.SaveAs("output.zip");
}

Imports IronZip
Imports IronZip.Enum

' Create empty ZIP with highest compression
Using archive = New IronZipArchive(9)
	' Password protect the ZIP (Support AES128 & AES256)
	archive.Encrypt("P@ssw0rd", EncryptionMethods.Traditional)

	archive.Add("./assets/image1.jpg")
	archive.Add("./assets/image2.jpg")

	' Export the ZIP
	archive.SaveAs("output.zip")
End Using

Install-Package IronZip

Password Protect ZIP

Password-protecting a ZIP archive involves adding a password to the archive to secure its contents. This ensures that only individuals with the correct password can extract or access the files within the ZIP archive. This password acts as a form of encryption, preventing unauthorized access to the files stored in the archive. To extract files from a password-protected ZIP archive, users must enter the correct password.

Create an empty ZIP file or open an existing one. Inside the 'using' statement, use the SetPassword method to apply a password. The SetPassword method supports traditional passwords, which can be opened by the Windows' built-in extractor. This method also supports AES128 and AES256-based password encryption; however, these two password types cannot be opened with Windows' built-in extractor and require third-party tools such as WinRar and 7Zip.