Asp code data decrypting encrypting in security

Because the data protection system has been added to the application's services collection by default, it can be made available via dependency injection. Here's how you can inject the IDataProtectionProvider into a controller and then use it to create an instance of an IDataProtector in the controller's constructor:.

This is used to differentiate one data protector from another in the same application. Data that has been protected by one data protector cannot be unprotected by a different protector. The recommendation is that you pass in the fully qualified name of the current component as this won't conflict with protectors instantiated in other parts of the system. One of the most frequent encryption scenarios that I see questions about is in the realm of encrypting identity values in query strings or route data to prevent tampering, and potential access to restricted data.

The following section of code illustrates getting some data from a service, and then transforming that data to a view model while encrypting the ID of each item for use in a URL:. The Protect method takes a byte array or a string, and encrypts it. The encrypted value is then used in the view to form the Id parameter of a route:. The links point to an action named Details, where the IDataProtector's Unprotect method is used to decrypt the Id parameter and retrieve details of the selected item:.

This article provides an introduction to the Data Protection system that has been built from the ground up for use with ASP. NET Core applications. It began with a refresher on the differences between encoding, encryption and hashing, and when you might want to use each process. Its very easy to use, and the given example is pretty clear. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

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Improve this question. Rob Broken Link Broken Link 2, 10 10 gold badges 27 27 silver badges 47 47 bronze badges. Add a comment. Active Oldest Votes. Improve this answer. Tomalak Tomalak k 64 64 gold badges silver badges bronze badges. The more I thought about it.. My scenario is little more complex. Can you see if you can answer this question? Broken Link: I don't see why using RC4 is not suitable for the scenario described.

You need a shared secret between your two ASP pages a common password and then you will be able to determine if the encrypted message sent to the one page was generated by the other. The password must never be compromised of course, that's the only catch. In this method we are going decrypt values of the query string and set it to Action method Arguments also we are going to check the timestamp of query string if it is greater than 30 min then we are going redirect it to an error page.

This will allow you to protect against storing URLs. The logic for generation helper is same as Custom tag helper. Which takes areas, actionName, controllerName and route Values as input for generating string and it will return string as Output.

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