C#에서 ZIP 파일에 비밀번호 보호 설정하는 방법

// Open the input file as a FileStream
using (FileStream source = File.Open("input.txt", FileMode.Open, FileAccess.Read))
{
    // Create a FileStream object for the output ZIP file
    using (FileStream zipFile = File.Open("PasswordAES256.zip", FileMode.Create))
    {
        // Set up encryption settings
        var settings = new ArchiveEntrySettings(null, new AesEcryptionSettings("p@s$", EncryptionMethod.AES256));

        // Create an empty ZIP archive
        using (var archive = new Archive(settings))
        {
            // Create an entry for the input file
            archive.CreateEntry("input.txt", source);

            // Save the encrypted ZIP file
            archive.Save(zipFile);
        }
    }
}