AES Encryption (Machine Key) not validating user on IIS
- Asp.net Machine Key Generator 4.0 Download
- Asp.net Machine Key Generator 4.0 2
- .net Machine Key Generator
Jul 14, 2017 12:05 PM|Rohit Rao|LINK
Hi,
I am using Asp.net membership in my application. We were using SHA256 for validation and 3DES for decryption (Asp.net membership) in machine key in Web.config.
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. 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. A2ZMenu team is committed in providing solution in various technologies through blogs, tutorials, Q & A etc. Our objective is to give a knowledge base giving technocrats options to improve the code quality, resolve issues, develop optimal solutions and reduce the effort spend. The recommended key length is 128 hexadecimal characters. If you add the IsolateApps modifier to the validationKey value, ASP.NET generates a unique encrypted key for each application using each application's application ID.' 'decryptionKey specifies a manually assigned key. Generate ASP.NET Machine Key. This tool allows to generate a secure machine key for ASP.NET web application.This is beneficial in a web farm scenario when several nodes are expected to produce and consume the identical outputs, view states, sessions and other data. Apr 26, 2011 Machine key can be generated in IIS 7/ IIS 7.5 by following steps listed below 1. Open the IIS Manager. Click on the Machine Key icon in the ASP.NET feature list as displayed below 3. Click on the Generate Keys as displayed below.
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');
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
Rohit
-->The implementation of the
<machineKey>
element in ASP.NET is replaceable. This allows most calls to ASP.NET cryptographic routines to be routed through a replacement data protection mechanism, including the new data protection system.Package installation
Note
The new data protection system can only be installed into an existing ASP.NET application targeting .NET 4.5.1 or later. Installation will fail if the application targets .NET 4.5 or lower.
![Asp.net Machine Key Generator 4.0 Asp.net Machine Key Generator 4.0](/uploads/1/2/5/8/125871187/845396771.png)
To install the new data protection system into an existing ASP.NET 4.5.1+ project, install the package Microsoft.AspNetCore.DataProtection.SystemWeb. This will instantiate the data protection system using the default configuration settings.
Asp.net Machine Key Generator 4.0 Download
When you install the package, it inserts a line into Web.config that tells ASP.NET to use it for most cryptographic operations, including forms authentication, view state, and calls to MachineKey.Protect. The line that's inserted reads as follows.
Tip
Asp.net Machine Key Generator 4.0 2
You can tell if the new data protection system is active by inspecting fields like
__VIEWSTATE
, which should begin with 'CfDJ8' as in the example below. 'CfDJ8' is the base64 representation of the magic '09 F0 C9 F0' header that identifies a payload protected by the data protection system.Package configuration
The data protection system is instantiated with a default zero-setup configuration. However, since by default keys are persisted to the local file system, this won't work for applications which are deployed in a farm. To resolve this, you can provide configuration by creating a type which subclasses DataProtectionStartup and overrides its ConfigureServices method.
Below is an example of a custom data protection startup type which configured both where keys are persisted and how they're encrypted at rest. It also overrides the default app isolation policy by providing its own application name.
Tip
Strongrandbytes / 1 as the basis for our private key generator. Python generate public key from private key bitcoin. Thankfully, Elixir exposes function which lets us easily generate a list of truly random bytes.Let’s use:crypto. We’ll start by creating a new PrivateKey module and a generate / 0 function that takes no arguments:defmodule PrivateKey dodef generateendInside our generate / 0 function, we’ll request 32 random bytes (or 256 bits) from:crypto.
You can also use
<machineKey applicationName='my-app' .. />
in place of an explicit call to SetApplicationName. This is a convenience mechanism to avoid forcing the developer to create a DataProtectionStartup-derived type if all they wanted to configure was setting the application name.To enable this custom configuration, go back to Web.config and look for the
<appSettings>
element that the package install added to the config file. It will look like the following markup:Fill in the blank value with the assembly-qualified name of the DataProtectionStartup-derived type you just created. If the name of the application is DataProtectionDemo, this would look like the below.
.net Machine Key Generator
The newly-configured data protection system is now ready for use inside the application.