Re: Some -15 text nits

[David Shaw <[e-mail]>]

On Wed, Dec 28, 2005 at 02:17:45PM -0800, Jon Callas wrote:

> >In section 5.2.1. Signature Types, the signature class 0x18
> >description says "This signature is calculated directly on the subkey
> >itself, not on any User ID or other packets", but in fact 0x18
> >signatures are calculated on the primary key plus subkey.  Similarly,
> >the 0x19 description says "This signature is calculated directly on
> >the primary key itself, and not on any User ID or other packets", but
> >in reality it is calculated exactly the same way as 0x18 is
> >(primary+subkey).
> >
> >To be sure, 5.2.4 gets this right, and 5.2.1 defers to 5.2.4, but it
> >would still be nice to not give two different answers for this.
> >
> 
> fixed. Here's what they say now:
> 
>    0x18: Subkey Binding Signature
>        This signature is a statement by the top-level signing key that
>        indicates that it owns the subkey. This signature is calculated
>        directly on the primary key and subkey, not on any User ID or
>        other packets. A signature that binds a signing subkey MUST have
>        an embedded signature subpacket in this binding signature which
>        contains a 0x19 signature made by the signing subkey on the
>        primary key.
> 
>    0x19 Primary Key Binding Signature
>        This signature is a statement by a signing subkey, indicating
>        that it is owned by the primary key and subkey. This signature
>        is calculated directly on the primary key itself, and not on any
>        User ID or other packets.

Minor problem here: 0x19 hashes both the primary key and subkey.  It
is actually the same as 0x18.

David