URL Hashing in .NET

Hi Friends,

I've an interesting problem in .NET... I'm developing an Web app in .NET which requires the URL of the page(as shown in Browser's Address) to be hashed (encrypted) when posting the page and directing user to another page.

For eg., if the URL of the page is http://SaleSource.ebix.com/Customer.aspx?ID=1&flag=2
then the hashed URL should look like
http://SaleSource.ebix.com/p1.aspx or somewhat like this...

What I actually mean is the page name along with the Querystring variables need to be encrypted when the page is posted to prevent any malicious use or false post. I know there are different Hashing algorithms like MD5, SHA1 etc., but I need to know how one can write code in .NET to actually use these hashing algos to hash URLs...
Also when the page is posted, then in the next page the Querystring variable values need to be decrypted in order to use them.

Can someone help...it's urgent???

Thanks in advance.


cheers,
debsoft

Why not just use viewstate ??

Viewstate is encrypted on the client anyway.

Quote:

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Originally posted by DecksTerrorT
Why not just use viewstate ??

Viewstate is encrypted on the client anyway.

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Hi DecksTerrorT,

Thanks for ur reply....Actually I need to ensure when I post the page that the URL seen in the browser's Address bar should be encrypted (except the domain name). For example, if the page URL is
http://www.microsoft.com/scrubber/scrubber.aspx ?ID=12

then it should appear something like
http://www.microsoft.com/r1/GHXY3R5TPQRI6FG in the Address bar.

Viewstate can't help much in this...also we are not allowed to use Viewstate to store variable values as per client's request.

Thanks.

cheers,
debsoft

Hash will probably not be the best choice, because your web server won't be able to decode it (unless you store a hash copy of the org url or have list of urls which you hash against).

Can you describe in more datail what you want to do, I didn't quite follow you? Which steps are involved? Please provide a user scenario.