Strange results from dnssec-dsfromkey

[Mark Andrews]

	Looks like a silly bug that will be simple to fix.

In message <Prayer.1.3.1.0902161618270.29403 at hermes-2.csi.cam.ac.uk>, Chris Thompson writes:
> I don't understand the results I am getting from dnssec-dsfromkey
> (BIND 9.6.0-P1, Solaris 10_x86, Sun Studio 10 C compiler).
> 
> For instance:
> 
> $ /usr/local/sbin/dnssec-keygen -a RSASHA1 -b 512 -n ZONE -f KSK test
> Ktest.+005+21283
> 
> $ cat Ktest.+005+21283.key
> test. IN DNSKEY 257 3 5 AwEAAbmcz5O8AzmbwidEoTMkHbaDhr0EfqKsq6WUyXWn5icJgqMTEoBO T03sgCEDXvnMUNthrV6vBIW9sINCLHzrAJc=
> 
> $ /usr/local/sbin/dnssec-dsfromkey Ktest.+005+21283
> test. IN DS 26153 5 1 4DB6296434AA1E9C95C6B68AC1A325AFF2BF856A
> test. IN DS 61367 154 2 7733D6D7F56602BB709BE521AFB861AEAF522E1A1946AF788EC994C8 259D3882
> 
> $ /usr/local/sbin/dnssec-dsfromkey -1 Ktest.+005+21283
> test. IN DS 26153 5 1 4DB6296434AA1E9C95C6B68AC1A325AFF2BF856A
> 
> $ /usr/local/sbin/dnssec-dsfromkey -2 Ktest.+005+21283
> test. IN DS 32741 47 2 344D72A40621EF9F6C6FF665B6CAA8E6165928E0AA33074668668C88 8364E27F
> 
> In that case the SHA256 records are inconsistent, but at least the
> SHA1 ones came out the same each time...
> 
> $ /usr/local/sbin/dnssec-keygen -a RSASHA1 -b 1024 -n ZONE -f KSK test
> Ktest.+005+45172
> 
> koala:~:2.2166$ cat Ktest.+005+45172.key
> test. IN DNSKEY 257 3 5 AwEAAd0QNMsmSdlyOmMCQX95VS/cOVCK18PorGVmpptTz/pZaCKuErxT RLNEnJb1qDw7HoFu2uSs40YhiqI4p/gyBwcK
> Tj3qr+hGLqX1+zQ6Gf5T SQJEMysWgmFrsqxaUx5M1V1HykprwP+td1rTUPktsrRX3y9JhftYjgCr jlxhz2x1
> 
> koala:~:2.2167$ /usr/local/sbin/dnssec-dsfromkey Ktest.+005+45172
> test. IN DS 57820 5 1 4154C73FB7759E846C90092E8EF5CE16FB2630C3
> test. IN DS 361 36 2 1F88F1C881EA4353C838C56837161A1719B03CE57FA74015CACD3611 9BC82F22
> 
> koala:~:2.2168$ /usr/local/sbin/dnssec-dsfromkey -1 Ktest.+005+45172
> test. IN DS 57820 5 1 B05B7CD38865DED8B4C2F3360764DFF6B3C7C86C
> 
> koala:~:2.2169$ /usr/local/sbin/dnssec-dsfromkey -2 Ktest.+005+45172
> test. IN DS 60190 254 2 85FEA41A86A84F76E067180884E8A86943870F8FE0554DE81E834306 92EE1DEF
> 
> ... but this time the SHA1 digests come out differently as well!
> 
> Does dnssec-dsfromkey behave properly for others?
> 
> -- 
> Chris Thompson
> Email: cet1 at cam.ac.uk
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org