[DNSSEC] Resolver behavior with broken DS records

['Stephane Bortzmeyer']

On Mon, May 09, 2011 at 01:00:03PM +0200,
 Marc Lampo <marc.lampo at eurid.eu> wrote 
 a message of 47 lines which said:

>  1 correct DS record,
>  1 DS record, correct in everything but the algorithm

And one DS record hashed with SHA-1 and one hashed with SHA-2? This
was necessary to trigger the problem, because of RFC 4509, section 3
(SHA-1 records are ignored if SHA-2 ones are present).