--s2k-count: correct value in config file needed?

[Peter Pentchev]

On Mon, Apr 18, 2011 at 01:05:03PM +0200, Hauke Laging wrote:
> Hello,
> 
> is the value of --s2k-count written to the key somehow? If not, can you use a 
> key only if the correct value is given in the config file (or command line)? 
> Does a key become kind of useless if you have forgotten the value which was 
> used during the last passphrase change?

For questions like this, it's always best to look at the authoritative
source for the format of various OpenPGP data - RFC 4880 :)  From the way
I read section 5.5.3 (Secret-Key Packet Formats) and then Section 3.7.1
(String-to-Key (S2K) Specifier Types) it would seem that the answer to your
question is yes, the S2K count is stored in the secret key packet.

G'luck,
Peter

-- 
Peter Pentchev	roam at ringlet.net roam at FreeBSD.org peter at packetscale.com
PGP key:	http://people.FreeBSD.org/~roam/roam.key.asc
Key fingerprint	FDBA FD79 C26F 3C51 C95E  DF9E ED18 B68D 1619 4553
The rest of this sentence is written in Thailand, on
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