I know that there's really no good way to do this

You are right. Use HTTPS. Nothing that happens client side like Javascript is, or can ever really be secure. Well I suppose you could implement a public/private key protocol in Javascript but then....you would have SSL only much less well sorted and inevitably very slow.

There are only really 3 scenarios:

  1. You are serious about it so you use HTTPS
  2. You believe that anyone who specifically targets your traffic will know enough to sniff your traffic but won't have enough smarts to use the javascript decryption routine you intend sending to every client. Uh huh.
  3. You believe that people randomly sniff HTTP traffic, scan for keywords and therefore some trivially reversible encryption offers protection.

Do yourself a favour. Use HTTPS.

cheers

tachyon

In reply to Re: I need some simple encryption. by tachyon
in thread I need some simple encryption. by Cap'n Steve

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