Asp.net Encryption Key Generator

  

May 13, 2009  The machineKey element of the ASP.NET web.config specifies the algorithm and keys that ASP.NET will use for encryption. By default the validationKey and the decryptionKey keys are set to AutoGenerate which means the runtime will generate a random key for use. This works fine for applications that are deployed on a single server.

5 Sep 2006
  1. This tool allows you to create a valid random machine key for validation and encryption/decryption of ASP.NET view state. This is beneficial in a webfarm where all of the server nodes need to have the same machine key, and it is also beneficial on a single box to keep the machine key consistent between IIS recycles and server reboots.
  2. Mar 19, 2019  To enable the machine key works with the form authentication successfully, you may need to keep all the server use the same encryption and decryption key. You may also need to use generate keys button in action panel to generate the key manually, then you need to copy the key to all the server manually.
This module is a simple windows application that generates machine keys for web farm

Introduction

The <machineKey> Element configures keys to use for encryption and decryption of forms authentication cookie data and viewstate data, and for verification of out-of-process session state identification. This section can be declared at the machine, site, and application levels, but not at the subdirectory level. Using this pattern allows your application to save your authentication ticket, in away that you can travel around different websites that have the same machine key using this ticket.

Machine Key

Machine key comes in the following format:

The Code

<o:p>

Encryption Key Generator

And to generate some random data using RNG (Random Number Generator)

Finally, we need to convert random generated data into hexadecimal:

Asp.net Encryption Key Generator Software

AES Encryption (Machine Key) not validating user on IIS

Jul 14, 2017 12:05 PMRohit RaoLINK

Hi,

I am using Asp.net membership in my application. /sap-solution-manager-key-generator.html. We were using SHA256 for validation and 3DES for decryption (Asp.net membership) in machine key in Web.config.

Now my requirement is to use AES encryption for both. I created Keys from IIS and added in my Web.config.

<machineKey validationKey='XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX,IsolateApps' decryptionKey='XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX,IsolateApps' decryption='AES' validation='AES'/>

Using That configuration setting, i updated password of 1 of my user in development environment.

MembershipUser mu = Membership.GetUser('UserName');
mu.ChangePassword(mu.ResetPassword(), 'Password');

After that i ran the application to test my password on development machine using below code & it was returning true:

bool b = Membership.ValidateUser('UserName', 'Password');

But when i published the website on IIS on my local machine, It is returning FALSE.

I am not sure why it is happening as the same keys are used at both places.

Thanks

Where To Find Encryption Key

Rohit