performance problem after adding machinekey in web.config

Question

Does adding a machinekey in the system.web of your web.config cause any performance problems?

I added something like this to my web.config:

<system.web>
    <machineKey validationKey="aaa"
    decryptionKey="bbb" validation="SHA1" />
</system.web>

and now it seems to run quite a bit slower. I am using firebug to see how fast the page is loading.

I ended up with this problem after this issue

Note: this is not the actual machine key I am using. I have a proper machine key.

Answer 1

Create a proper machine key and see if that works better:

machineKey generator

Answer 2

The answer is no, it will not cause a performance problem.

I found out my problem was elsewhere