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How to Extract Password Protected ZIP File in C#

How to Extract Password Protected ZIP File in C#

This quick tutorial covers how to extract a password protected ZIP file in C#. You’ll learn the step-wise process and see runnable sample code to unzip an encrypted ZIP file. No additional tools are needed to integrate this feature into your application.

Benefits of Extracting Password Protected ZIP Files

  1. Data Security:
    • Safeguards sensitive information by requiring passwords for access.
  2. Integrity Verification:
    • Ensures that only authorized users can access the content of the ZIP archive.
  3. Efficiency:
    • Streamlines processes in applications that handle sensitive documents.

Prerequisites: Preparing the Environment

  1. Set up Visual Studio or any compatible .NET IDE.
  2. Install Aspose.ZIP from the NuGet Package Manager.

Step-by-Step Guide to Extract Password Protected ZIP File

Step 1: Install Aspose.ZIP

Begin by adding the Aspose.ZIP library to your project.

Install-Package Aspose.ZIP

Step 2: Set the Decryption Password

Create an ArchiveLoadOptions object and specify the decryption password.

Aspose.Zip.ArchiveLoadOptions options = new Aspose.Zip.ArchiveLoadOptions();
options.DecryptionPassword = "password";

Step 3: Load the ZIP File

Load the source ZIP file using the Archive class.

Aspose.Zip.Archive archive = new Aspose.Zip.Archive("PasswordAES256.zip", options);

Step 4: Extract the ZIP File

Extract the contents of the password-protected ZIP archive.

archive.ExtractToDirectory(".");

Complete Code Example to Extract a Password Protected ZIP File

Here’s a complete C# example that demonstrates how to extract a password protected ZIP file:

// Create an object of ArchiveLoadOptions class
Aspose.Zip.ArchiveLoadOptions options = new Aspose.Zip.ArchiveLoadOptions();

// Set the password for decryption
options.DecryptionPassword = "password";

// Initialize an Archive class object
Aspose.Zip.Archive archive = new Aspose.Zip.Archive("PasswordAES256.zip", options);

// Extract the password protected ZIP file
archive.ExtractToDirectory(".");

Additional Information

  • You have the option to set various extraction settings based on your needs.
  • Consider implementing error handling for scenarios such as incorrect passwords.

Conclusion

This tutorial has demonstrated how to extract password protected ZIP files in C# using Aspose.ZIP. By following the steps and code provided, you can securely manage encrypted archives in your applications. For further functionality, such as password protecting a ZIP file, please refer to other tutorials.

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