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[liberationtech] Auto expiring document/files & 'rights to be forgotten'

Meredith L. Patterson clonearmy at gmail.com
Thu Jan 26 10:08:46 PST 2012


No. How do you address the problem of a user who wants to read the
document simply rolling back the date on their computer's clock?

Expensive DRM is expensive because people who don't understand the
underlying math but still want to do impossible things are willing to
pay snake-oil vendors astronomical amounts of money for unfounded
promises. Don't buy into the hype.

--mlp

On Thu, Jan 26, 2012 at 12:50 PM, Frank Corrigan
<email at franciscorrigan.com> wrote:
> Let's say the information was within a PDF, but the person(s) creating
> it wanted it to expire at future date and be technically irrecoverable
> say through encryption, irregardless of whether printed or memorised, is
> it technically possible at little or no cost?
>
> Apologies if I come across as naive, it is being built upon the
> widespread use of DRM, that currently is too prohibitive in cost terms.
> I don't want to post details of available DRM software safe to say it
> costs around $1000 per user or hundreds or $'s per month for server
> based authentication services.
>
> Frank
>
> ----- Original message -----
> From: "Carolyn Anhalt" <carolyn at anhalt.org>
> To: "Frank Corrigan" <email at franciscorrigan.com>
> Cc: liberationtech at lists.stanford.edu
> Date: Thu, 26 Jan 2012 12:29:19 -0500
> Subject: Re: [liberationtech] Auto expiring document/files & 'rights to
> be forgotten'
>
> Does it involve people without printers? Or memories?
>
> On Thu, Jan 26, 2012 at 12:27 PM, Frank Corrigan
> <email at franciscorrigan.com>wrote:
>
>> Thanks I thought as much, but lets say the threat model does not involve
>> those with the capacity to circumvent DRM?
>>
>> Frank
>>
>> ----- Original message -----
>> From: "Meredith L. Patterson" <clonearmy at gmail.com>
>> To: "Frank Corrigan" <email at franciscorrigan.com>
>> Cc: liberationtech at lists.stanford.edu
>> Date: Thu, 26 Jan 2012 12:20:35 -0500
>> Subject: Re: [liberationtech] Auto expiring document/files & 'rights to
>> be forgotten'
>>
>> What you are asking is impossible, whether open-source or proprietary.
>> Give up now and save yourself the effort, heartbreak and pain.
>>
>> --mlp
>>
>> On Thu, Jan 26, 2012 at 11:08 AM, Frank Corrigan
>> <email at franciscorrigan.com> wrote:
>> > Does anyone know of any free resource that can make a PDF document, for
>> > instance, inaccessible after a certain data, Most Digital Rights
>> > Management (DRM) software prices are too prohibitive to make them a
>> > practical solution to individuals.
>> >
>> > This request is being prompted by a desire to find a practical way to
>> > use rights to be forgotten, such as the new European Data Protection
>> > proposals on
>> >
>> http://www.digitaltrends.com/international/do-you-have-the-right-to-be-forgotten-eu-citizens-may-soon/
>> >
>> > Of course there are ways to overcome document based DRM, but an open
>> > source version could be useful to at least add a layer of privacy
>> > protection to documents shared online, particularly when they contain
>> > personal identifiers that unwittingly could become a risk to individuals
>> > at a later date.
>> >
>> > Frank
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