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i've seen on some pages, that they use an encryption for the parameters delivered by GET. for example, i wanna request an url with a couple of parameters, something like this:

instead of seeing this explicit url you get this one:

from this i can understand that the parameters have been encrypted and the string which actually includes encrypted parameters passed as a parameter by itself.
as i also understand, the server gets this "code" parameter and knows how to get the encrypted parameters from it.
my questions are:
1. is there any common way this thing can be done in java?
2. i'm sure there are encryption classes, but if all this works the way i think, if encryption used we need to parse the unencrypted string of parameters and values with tokenizers or something, because there is no "request.getParameter("age")" way..

It is sorta covered in the JavaRanch Style Guide.
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