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Re: V3 secret keys

<vedaal@hush.com> Tue, 07 February 2006 00:17 UTC

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Date: Mon, 06 Feb 2006 19:00:41 -0500
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Subject: Re: V3 secret keys
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On Mon, 06 Feb 2006 17:38:01 -0500 Hal Finney <hal@finney.org> 
wrote:

>Note that V3 keys only support ciphers with a block size of 8 
>bytes, so
>I think it is OK to explicitly say "8 octets" here.

are v4 keys different in this respect ?

(i.e., is there any cipher currently within the open pgp standard 
that v4 keys support that v3 keys could not?

classically, v3 keys were started when all that was available was 
IDEA,
but Disastry extended 2.6x for v3 keys to accept 'any' open-pgp 
cipher, 
even for symmetric protection of the secret key

(i have occasionally found it useful to prepare v3 non-IDEA test 
keys,
for gnupg testers who prefer not to use patented algorithms, even 
for testing, if there is a convenient way around it)

[am not trying to awaken a v3 / v4 controversy ;-)
am just trying to 'understand' what i might have 'missed' ]

tia,
vedaal




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