Decompress AES Files - Aspose.Zip .NET Tutorial

Introduction

Welcome to our comprehensive guide on decompressing AES encrypted files using Aspose.Zip for .NET! Aspose.Zip is a powerful library that simplifies working with compressed files in your .NET applications. In this tutorial, we’ll focus on decompressing AES encrypted files step by step.

Prerequisites

Before we dive into the tutorial, ensure you have the following prerequisites:

• A basic understanding of C# programming.
• Visual Studio installed on your machine.
• Aspose.Zip for .NET library. You can download it here.
• A sample AES encrypted ZIP file for hands-on practice.

Import Namespaces

In your C# project, start by importing the necessary namespaces to access Aspose.Zip functionalities:

using System.IO;
using Aspose.Zip;

Step 1: Set Up Your Project

Create a new C# project in Visual Studio and include the Aspose.Zip library. Make sure you have a sample AES encrypted ZIP file in your project directory.

Step 2: Initialize Variables

Set the path to your resource directory and create variables for file paths:

string dataDir = "YourDocumentDirectory";

Step 3: Decompress AES Encrypted File

Now, let’s get into the core of decompressing AES encrypted files. Use the following code snippet:

//ExStart: DecompressAESEncryptedFile
using (FileStream fs = File.OpenRead(dataDir + "PasswordProtectWithAES256_out.zip"))
{
    using (var extracted = File.Create(dataDir + "alice_aesextracted_out.txt"))
    {
        using (Archive archive = new Archive(fs))
        {
            using (var decompressed = archive.Entries[0].Open("p@s$"))
            {
                byte[] b = new byte[8192];
                int bytesRead;
                while (0 < (bytesRead = decompressed.Read(b, 0, b.Length)))
                {
                    extracted.Write(b, 0, bytesRead);
                }
            }
        }
    }
}
//ExEnd: DecompressAESEncryptedFile

This code opens a ZIP file, extracts its content, and decompresses the encrypted file using the specified password.

Conclusion

Congratulations! You’ve successfully learned how to decompress AES encrypted files using Aspose.Zip for .NET. This powerful library simplifies working with compressed files in your .NET applications.

Frequently Asked Questions

Is Aspose.Zip compatible with all AES encryption levels?

Yes, Aspose.Zip supports AES encryption with 128, 192, and 256-bit key lengths.

Can I use Aspose.Zip in a commercial project?

Yes, you can! Visit here for licensing details.

Is there a free trial available?

Yes, you can access a free trial here.

How can I get support for Aspose.Zip?

Visit the Aspose.Zip Forum for community support.

What if I need a temporary license?

You can obtain a temporary license here.