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Re: key recovery vs data backup

daemon@ATHENA.MIT.EDU (Carl Ellison)
Tue May 6 18:26:33 1997

Date: Tue, 06 May 1997 18:03:57 -0400
To: Adam Back <aba@dcs.ex.ac.uk>
From: Carl Ellison <cme@cybercash.com>
Cc: cryptography@c2.net
In-Reply-To: <199705062009.VAA01882@server.test.net>

At 09:09 PM 5/6/97 +0100, Adam Back wrote:
>
>Some people are voicing concerns that Netscape by supporting OKAY
>(Optional Key Access for Yourself) is helping the Forces of Darkness
>have a fully prepared GAK infrastructure.

If I wanted to implement OKAY i believe I would:

1)	generate a very long archival key for myself (2kb to 4kb in length)
2.	securely back up that key on many sites, encrypted by my own
	multi-question keys:

	as in     http://www.clark.net/pub/cme/html/rump96.html

3)	use that archival key as an additional crypto-recipient for
	things I want to be able to keep

Of course, your plan to just keep copies encrypted under a private symmetric 
key locally works well, also.


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