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Re: http+aes

From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Wed, 07 Mar 2012 16:32:49 +0000
To: "Michael Wojcik" <Michael.Wojcik@microfocus.com>
cc: "URI" <uri@w3.org>, "HTTP Working Group" <ietf-http-wg@w3.org>, "Ian Hickson" <ian@hixie.ch>
Message-ID: <73027.1331137969@critter.freebsd.dk>
In message <0AB4526732901E45B9B3A55FFD725D67019CBB16@AUS-EXCHANGE.microfocus.co
m>, "Michael Wojcik" writes:

>> You cut and paste the link, and anybody who receives it can view
>> the copyrighted object, and you have no idea who leaked it.
>
>Actually, I think it's potentially worse than that. Consider this case:
>
>- Publisher puts 100 copies of each resource on CDN, each encrypted with
>a different key.

What you propose is what's called "Thatcherizing" a document: During
the Thatchers government, they tweaked the spacing in a confidential
memo so that each recipients copy were unique, in order to expose
who leaked it to the press.

It is however, not an argument for the circus-crypto og http+aes


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
Received on Wednesday, 7 March 2012 16:33:20 GMT

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