Encryption and decrypting url parameters

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UTF8; return encoding. Encrypted URL Parameters is currently in beta. This means it is fully working, but we may make adjustments based on customer feedback.

This value must be exactly 32 characters long. It is recommended that the Merchant Facility and Payment Form are entered. Process builder provides a simple and flexible method for generating URL parameters and associating this with any object in Salesforce.

This should not be confused with the URL Token process described above; this example just happens to be producing a similar result with the Process Builder technique instead of the inbuilt option for URL Tokens. Click into Process Builder and press the "New" button. Navigate to the URL Token tab. Notice how the donation amount value has defaulted to , because it was set by the process builder 2. Connect and share knowledge within a single location that is structured and easy to search.

The data is insensitive in nature, but we needed to prevent sales agents from peeking on each other's leads. Keys are generated on session creation and are cryptographically strong. Sessions are expected to end frequently. The data structures don't currently account for these roles in a way to strictly enforce who can see what.

Getting this information from the database was NOT anywhere close to straightforward. Recursive Database. I know that this technique is way down on the list as a defence against parameter manipulation. What would have been a better technique? The specific threat surface here is parameter manipulation against?

Agent ids are assigned uniquely to each agent. Again, Role-Based checking was not an option for me: I was unable to make changes to the database OR the persistence tier. My solution was to use a session-created encryption key using Java's KeyGenerator class and encrypting the outbound urls sent to the client. So now, the url looks like:. This leaves open the possibility that an existing agentId could be found, but quite unlikely that it would be relevant to the person performing the attack.

I will stress that this question isn't about optimal security which would be role-based checking to ensure resource access and about trying to squeeze some security in a grey area. The parameter encryption solution here was recommended to me by one of our security guys. I got one takeaway I hadn't considered on this solution--broken urls--and will be using that as well as the maintenance issue created by this solution to argue for the time to enforce the access rules in a less stopgap fashion.

Good question! Thanks for elaborating on the threat you are trying to defend against. I have edited my answer accordingly. Your primary defense should be access control. You need to limit which users can view which pages. Details below. Access control in web applications. What you need to do is check that the user is authorized to access the data you're going to show on a page, before allowing them to see that data.

This basically comes down to access control: you want controls that limit which users can view which data, based upon some authorization policy. To implement access control, you code the web application so that each page checks whether the user is authorized to view that page before allowing the user to view that page.

For instance, for the page listed above, the logic implementing that page would check the identity of the currently-logged in user. If the id of the logged-in user matches the producerId of the page parameter, then you show them the information. If the id does not match, you do not show them the information: if it is some other user, you show them an error page with information about how to get access , or if the user has not logged in yet, you redirect them to a login page.

This won't break bookmarks. It does not require changes to the database, changes to the persistence layer, or role-based access control. It does require you to have a way to look up the identity of the currently logged-in user and associate that with their provider ID. Also, if you want to allow manager and supervisors to see the data for all other agents, then you need a way to look up the currently logged-in user and determine whether they are a manager or supervisor or not.

These are pretty basic, minimal requirements; it is hard to see how you could avoid them. As symbcbean properly points out, this is a very common error frequently found in web applications.

A typical example might be a site that uses some guessable parameter value to identify a resource, and does not adequately authenticate the user. Now retrieve the same session on other page.

Remember DataBinder. Eval will return an object type datatype so make sure you convert the same on other page. My mistake.. Create an isntance of a datatable object in your page level. Sign in.

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