Re: V3 secret keys
nagydani@epointsystem.org (Daniel A. Nagy) Tue, 07 February 2006 00:37 UTC
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Date: Tue, 07 Feb 2006 01:27:31 +0100
To: vedaal@hush.com
Cc: ietf-openpgp@imc.org
Subject: Re: V3 secret keys
Message-ID: <20060207002731.GA18523@epointsystem.org>
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On Mon, Feb 06, 2006 at 07:00:41PM -0500, vedaal@hush.com wrote: > > 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? The difference is that in the case of v4 keys, the secret part is encrypted like a regular byte stream, with no regard to the contents. In the case of V3, there were resynchronization steps introduced between the MPIs. I sincerely hope that this whole mess will be cleaned up with V5, where there seems to be a consensus not to implement encrypted private key packets at all, but put unencrypted private key packets into integrity protected symmetrically encrypted packets instead. Personally, I would suggest removing encrypted packet formats from the standard altogether; there is no reason to stay interoperable with those. If one wants to export old keys, they should remove the encryption first. New implementations should enclose unencrypted private keys (of eiter version) in symmetrically encrypted packets with MDC. -- Daniel
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Ian G
- Re: V3 secret keys "Hal Finney"
- V3 secret keys Ben Laurie
- Re: V3 secret keys Daniel A. Nagy
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Adam Back
- Re: V3 secret keys Wim Lewis
- Re: V3 secret keys Daniel A. Nagy
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Daniel A. Nagy
- V3 secret keys Ben Laurie
- Re: V3 secret keys "Hal Finney"
- Re: V3 secret keys vedaal
- Re: V3 secret keys Daniel A. Nagy
- Re: V3 secret keys "Hal Finney"
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys "Hal Finney"
- Re: V3 secret keys "Hal Finney"
- Re: V3 secret keys Peter Gutmann
- Re: V3 secret keys Ian G
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys "Hal Finney"
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Peter Gutmann
- Re: V3 secret keys "Hal Finney"
- Re: V3 secret keys David Shaw
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Jon Callas
- Re: V3 secret keys David Shaw
- Re: V3 secret keys Ben Laurie
- Re: V3 secret keys Jon Callas