c# - convert into hash code and decrypt it -

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i pass loan id, social security number , zipcode in url.

loanid: 205689 ssn no: 555-896-4569 zip code: 12345

the url http://localhost/product/abc/manager/internet/paycredential.aspx?loanid=205689

i need convert social security number , zip code hashcode security purposes , pass them in url. decrypt them when page called. how can this?

don't bother reinventing wheel. use ssl - communications encrypted, including urls.


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