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Re: Browser fingerprinting? [message #182807 is a reply to message #182803]

Mon, 16 September 2013 10:13

Norman Peelman
Messages: 126
Registered: September 2010

Karma:

Senior Member

On 09/15/2013 04:27 PM, Twayne wrote:
> On 2013-09-14 6:11 PM, Gilles wrote:
>> On Fri, 13 Sep 2013 19:30:18 -0400, Twayne <nobody(at)spamcop(dot)net> wrote:
>>> If it were easy to do, it'd also be widely publicized and available.
>>
>> Thanks for the feedback.
>>
>
> Welcome.
> I'm empathetic because I'm working along the same research lines as you
> are. The only thing I'm sure of is, it has to be done server-side;
> anything client-side can weed out some of it and save a tiny bit of
> server traffic, but from the client side it's too easy. Those guys won't
> be allowing js on their machines so js isn't going to be much good.
> Right now all I can see doing is sanitizing and especially
> validation of ALL inputted data. There are ways to catch enough of them
> that at least it becomes too much effort for the bad guys to bother
> with. And never forget htmlentities and htmlspecialcharacters; along
> with the right sanitizing, they can at least render anything that comes
> through useless.
> The biggest problem IMHO is to make a textarea safe. HTML 5 now
> includes the max length attribute but a miscreant isn't going to be
> using anything 5 compliant if he's got more than one brain cell.
> Personally I've managed so far to avoid javascript and instead look at
> things like ctype, str-replace for validation uses, and whatever filters
> will work. Counting page views help, in addition to keeping a list of
> miscreant IPs and their proxy information when you can get it, but the
> smart ones are still going to be by it.
> All you can do is your best :)
>
> Twayne`
>

Why is a textarea any different than any other form control?

--
Norman
Registered Linux user #461062
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[Message index]

		Browser fingerprinting? By: Gilles Ganault on Thu, 12 September 2013 21:56
		Re: Browser fingerprinting? By: Denis McMahon on Thu, 12 September 2013 22:26
		Re: Browser fingerprinting? By: Gilles Ganault on Thu, 12 September 2013 22:38
		Re: Browser fingerprinting? By: Gilles Ganault on Thu, 12 September 2013 22:43
		Re: Browser fingerprinting? By: Denis McMahon on Thu, 12 September 2013 23:29
		Re: Browser fingerprinting? By: Gilles Ganault on Fri, 13 September 2013 07:23
		Re: Browser fingerprinting? By: Jerry Stuckle on Fri, 13 September 2013 13:32
		Re: Browser fingerprinting? By: bill on Fri, 13 September 2013 23:13
		Re: Browser fingerprinting? By: Christoph Michael Bec on Fri, 13 September 2013 23:30
		Re: Browser fingerprinting? By: jimp on Thu, 12 September 2013 22:19
		Re: Browser fingerprinting? By: Jerry Stuckle on Fri, 13 September 2013 00:31
		Re: Browser fingerprinting? By: J.O. Aho on Fri, 13 September 2013 04:59
		Re: Browser fingerprinting? By: Fiver on Fri, 13 September 2013 03:04
		Re: Browser fingerprinting? By: Michael Vilain on Fri, 13 September 2013 05:49
		Re: Browser fingerprinting? By: Jerry Stuckle on Fri, 13 September 2013 13:35
		Re: Browser fingerprinting? By: Martin Leese on Fri, 13 September 2013 14:42
		Re: Browser fingerprinting? By: Thomas 'PointedEars' on Sun, 15 September 2013 18:57
		Re: Browser fingerprinting? By: Gilles Ganault on Fri, 13 September 2013 07:22
		Re: Browser fingerprinting? By: bill on Fri, 13 September 2013 23:30
		Re: Browser fingerprinting? By: Gilles Ganault on Sat, 14 September 2013 22:11
		Re: Browser fingerprinting? By: bill on Sun, 15 September 2013 20:27
		Re: Browser fingerprinting? By: Peter H. Coffin on Mon, 16 September 2013 02:07
		Re: Browser fingerprinting? By: Gregor Kofler on Mon, 16 September 2013 09:36
		Re: Browser fingerprinting? By: bill on Wed, 18 September 2013 00:02
		Re: Browser fingerprinting? By: Peter H. Coffin on Wed, 18 September 2013 03:47
		Re: Browser fingerprinting? By: Norman Peelman on Mon, 16 September 2013 10:13
		Re: Browser fingerprinting? By: Denis McMahon on Mon, 16 September 2013 11:03
		Re: Browser fingerprinting? By: bill on Wed, 18 September 2013 00:11
		Re: Browser fingerprinting? By: bill on Wed, 18 September 2013 00:06
		Re: Browser fingerprinting? By: The Natural Philosoph on Wed, 18 September 2013 00:33
		Re: Browser fingerprinting? By: Marc van Lieshout on Tue, 17 September 2013 20:53
		Re: Browser fingerprinting? By: bill on Wed, 18 September 2013 00:20
		Re: Browser fingerprinting? By: Denis McMahon on Wed, 18 September 2013 05:06
		Re: Browser fingerprinting? By: Scott Johnson on Wed, 18 September 2013 13:09
		Re: Browser fingerprinting? By: J.O. Aho on Wed, 18 September 2013 16:24

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