Test that DNSSEC validation is aborted on malformed DNSKEY

Create a signed zone file that contains malformed ZSKs with colliding
key tags. The ZSKs don't represent valid ECDSA keys and will cause a
crypto failure when attempting to use them. Sign the zone with KSK, with
the exception of one record which is "signed" with the invalid ZSKs.

Check that the resolver aborts the DNSSEC verification after
encountering the first crypto failure, indicating malformed DNSKEY.
This commit is contained in:
Nicki Křížek 2025-09-11 14:27:34 +02:00
parent c511314c54
commit 1a2e46d364
6 changed files with 398 additions and 0 deletions

View file

@ -0,0 +1,128 @@
; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
;
; SPDX-License-Identifier: MPL-2.0
;
; This Source Code Form is subject to the terms of the Mozilla Public
; License, v. 2.0. If a copy of the MPL was not distributed with this
; file, you can obtain one at https://mozilla.org/MPL/2.0/.
;
; See the COPYRIGHT file distributed with this work for additional
; information regarding copyright ownership.
$TTL 300
@ IN SOA mname1. . (
1 ; serial
600 ; refresh
600 ; retry
1200 ; expire
600 ; minimum
)
@ NS @
@ A 10.53.0.2
; All of the following DNSKEYs are malformed and have the same key tag - 20071.
; The keys use invalid parameters for the ECDSA curve.
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5Or0NNksES2iAAwmRfEEnH/hzk+8xF
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfjFg5Y9Ytl2+UR1JO/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sW2HoOfwFg5Y1ctl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5ZA8tl2+URx5O/UNNkogS2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rjJ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwghfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD47F1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URydO/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNkuMS2iAAwmRfEEnH/hzk2cv3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNi7iu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Yt0W+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeNcGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8vg
@ DNSKEY 256 3 14 rdZ2xb7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNky4S2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+FGHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5PE0NNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EFvr4ulinFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbkf1BvDhMNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtjlWd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNkuUS2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sS9HoOfwFg5Y9Ytl2+URx5O/UNNksETVCAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNkroS2iAHwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtmpWd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNAksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGQ8qmCKB+KmHS3YPgZjMZtl1W7/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmIe3YPgZjMZthFWd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Nr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGt8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cL1eMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHGAK8U3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4uli7FbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URqhO/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD6VF1z4ulhFFbCNdLiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulgyFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtIR/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAHOcqmCKB+KmHS3QXgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGasqmCKB+KmHS3dTgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfeVg5Y9Ytl2+URx5O/UNNksES2iAAwmRfV0nH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwsteqUnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1WEvfvtHF/3sU3HoOfwFieY9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9YtSW+UR2xO/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1WvPfvtHF/3sU3HoOfwFg5Y5Etl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPg5jMZtl1V9/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HnqfyVg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD6WF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sTlHoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BfD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfFEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgcjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk78v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD3HF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzleMv3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulinFbCNxbiu07nD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeJIGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFhnY9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCOE7iu1BvD9cNCeMAGu8qmCKB+KmGE3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtGB/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzlDMv3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EFwn4uliYFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cLTeMAGu8sVCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1WMvfvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iBFwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1JHD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfSlg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNf7iu1BvD9cNCeMAGu8qmCKB+KmHS3YPgrDMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFcCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fftHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fGtHF/3sU3HoOfwFg5Y9Ytl2+UR0dO/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjM7tl1Wd/fvtHF/3sU3HoOfnlg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbh71BvD9cN1eMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfYknH/crk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/hHtHF/3sU3HoOfwFg5Y9Ytl288Rx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF8z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB9umHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAHGsqmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y3ctl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4vlhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/frtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtopWd/fvtHF/3sU3HoOfwFgMY9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+lWHS3RjgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD4uF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgfDMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/gNtHF/3sU3HoOfwFg5Y9Ytl292Rx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/qMU3HoOfwFg5Y9YtzW+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytv2+URx5O/UMlksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr8HEQoEdD5EF1z4ulhFFYCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/6MU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEm9/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbkT1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmReq0nH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtCh/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzlRMv3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8rXCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzkysv3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPg2TMZtl1Wd/fvtHF/3sTEHoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOftVg5Y9Ytl2+URx5O/UNNksES2iAAwm9fEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cN2eMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sUDHoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr5aEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+p2HS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF0D4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOf3Fg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD6lF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCD9+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4jVhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtopWd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmI03YPgZjMZtftWd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtFp/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNktgS2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFZyNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwnhfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/gKtHF/w8U3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFfXY9Ytl2+URx5O/UNNksETPCAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNkeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/vMU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCN5Liu1BvD9cNCeMAGu8qmCKB+KmGz3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD4fF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9YtvG+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoE3z5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwflfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtjNWd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8wh
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1j4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfxFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ2+L7XEQoEdD5EF1z4ulhFFbCNxbiu1BvEL8NCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qOCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8wP
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbjh1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjLmtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjM2tl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2h/jwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCN4LiT1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr9DEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cLWeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFhYY9Ytl2+URx5O/UNNksES2iAAwmRe8UnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qlCKB+KmHS3YPgZjMatl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1n4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmdfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cODeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRez0nH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNqeMAGu8qmCKB+KmGq3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhrFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjLztl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF534ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2h+/wmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3QngZjMZtl1Wd/fvtHF/3sU3HoOfwFg5ZFAtl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
@ DNSKEY 256 3 14 rdZ3Mr7XEQoEdD5EF1z4ulhFFbCNxbiu1BvD9cNCeMAGu8qmCKB+KmHS3YPgZjMZtl1Wd/fvtHF/3sU3HoOfwFg5Y9Ytl2+URx5O/UNNksES2iAAwmRfEEnH/hzk+8v3
malformed-dnskey A 10.53.0.2
multiple-rrsigs A 10.53.0.2

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@ -0,0 +1,37 @@
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
options {
query-source address 10.53.0.2;
notify-source 10.53.0.2;
transfer-source 10.53.0.2;
port @PORT@;
pid-file "named.pid";
listen-on { 10.53.0.2; };
listen-on-v6 { none; };
allow-transfer { any; };
recursion no;
dnssec-validation yes;
/* Keep the order of RRSIGs in the response static. */
rrset-order {
name "example." order none;
};
};
zone example. {
type primary;
file "example.db.signed.malformed";
};
include "trusted.conf";

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@ -0,0 +1,16 @@
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
trust-anchors {
example. static-key 257 3 14 "@ksk_public_key@";
};

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@ -0,0 +1,34 @@
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
options {
query-source address 10.53.0.3;
notify-source 10.53.0.3;
transfer-source 10.53.0.3;
port @PORT@;
pid-file "named.pid";
listen-on { 10.53.0.3; };
listen-on-v6 { none; };
allow-transfer { any; };
dnssec-validation yes;
/* This is the default, but the test relies on it. */
max-validation-failures-per-fetch 1;
};
zone "example." {
type static-stub;
server-addresses { 10.53.0.2; };
};
include "trusted.conf";

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@ -0,0 +1 @@
../ns2/trusted.conf.j2

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@ -0,0 +1,182 @@
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# SPDX-License-Identifier: MPL-2.0
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, you can obtain one at https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
import base64
from re import compile as Re
import pytest
pytest.importorskip("cryptography")
pytest.importorskip(
"dns", minversion="2.7.0"
) # dns.dnssec.sign_zone(deterministic=...) needed
from cryptography.hazmat.primitives.asymmetric import ec
import dns
import dns.dnssec
import dns.zone
from dns.rdtypes.dnskeybase import Flag
import isctest
def generate_key():
algorithm = dns.dnssec.Algorithm.ECDSAP384SHA384
ksk_private_key = ec.generate_private_key(ec.SECP384R1())
try:
ksk_dnskey = dns.dnssec.make_dnskey(
public_key=ksk_private_key.public_key(),
algorithm=algorithm,
flags=Flag.ZONE | Flag.SEP,
)
except ImportError as exc:
# if the cryptography package is too old, the make_dnskey() function
# will raise ImportError at runtime
pytest.skip(f"{exc}")
return ksk_private_key, ksk_dnskey
MALFORMED_ZSK_KEY_TAG = 20071
def create_malformed_rr(rr, n=0):
malformed_rr = dns.rdtypes.ANY.RRSIG.RRSIG(
rdclass=rr.rdclass,
rdtype=rr.rdtype,
type_covered=rr.type_covered,
algorithm=rr.algorithm,
labels=rr.labels,
original_ttl=rr.original_ttl - n, # edit TTL so multiple RRSIGs can be added
expiration=rr.expiration,
inception=rr.inception,
key_tag=MALFORMED_ZSK_KEY_TAG, # overwrite with the malformed ZSKs
signer=rr.signer,
signature=rr.signature,
)
return malformed_rr
def bootstrap():
zone = dns.zone.from_file("ns2/example.db.in", origin="example.")
lifetime = 300
# geneate KSK, avoid key tag collision with ZSKs
while True:
ksk_private_key, ksk_dnskey = generate_key()
if dns.dnssec.key_id(ksk_dnskey) != MALFORMED_ZSK_KEY_TAG:
break
keys = [(ksk_private_key, ksk_dnskey)]
# sign the zone (including the malformed ZSKs) with KSK
with zone.writer() as txn:
dns.dnssec.sign_zone(
zone=zone,
txn=txn,
keys=keys,
lifetime=lifetime,
add_dnskey=True,
deterministic=False, # for OpenSSL<3.2.0 compat
)
# force use of the malformed ZSKs for dnssec verification
# malformed-dnskey.example. has only one invalid RRSIG and is only signed
# with malformed ZSKs
malformed_rrset = zone.get_rdataset("malformed-dnskey", "RRSIG", "A")
rr = malformed_rrset.pop()
malformed_rrset.add(create_malformed_rr(rr))
# multiple-rrsigs.example. contains a lot of RRSIGS with the same invalid
# signature using malformed RRSIG, and one valid RRSIG
multiple_rrset = zone.get_rdataset("multiple-rrsigs", "RRSIG", "A")
rr = multiple_rrset.pop()
for i in range(99):
multiple_rrset.add(create_malformed_rr(rr, i))
multiple_rrset.add(rr)
zone.to_file("ns2/example.db.signed.malformed")
return {
"ksk_public_key": base64.b64encode(ksk_dnskey.key).decode(),
}
def test_malformed_ecdsa(ns3):
log_validation_failed = Re(r"malformed-dnskey\.example/A\): validation failed")
log_openssl_failure = Re("EVP_PKEY_fromdata.*failed")
log_openssl_version = Re("linked to OpenSSL version: OpenSSL ([0-9]+)")
msg = isctest.query.create("malformed-dnskey.example", "A")
openssl_vers = ns3.log.grep(log_openssl_version)
if openssl_vers and int(openssl_vers[0].group(1)) >= 3:
# extra check for OpenSSL 3.0.0+
with ns3.watch_log_from_here() as watcher:
res = isctest.query.tcp(msg, "10.53.0.3")
# check the OpenSSL-specific log message appears just once
matches = watcher.wait_for_all(
[
log_openssl_failure,
log_validation_failed,
]
)
assert len([m for m in matches if m.re == log_openssl_failure]) == 1
else:
res = isctest.query.tcp(msg, "10.53.0.3")
isctest.check.servfail(res)
def test_multiple_rrsigs(ns3):
log_validation_failed = Re(r"multiple-rrsigs\.example/A\): validation failed")
log_openssl_failure = Re("EVP_PKEY_fromdata.*failed")
log_openssl_version = Re("linked to OpenSSL version: OpenSSL ([0-9]+)")
msg = isctest.query.create("multiple-rrsigs.example", "A")
# Check the order of returned RRSIGs from auth. Due to rrset-order none;
# this should remain constant for the remainder of the test.
# Ensure the first two RRSIGs are malformed, otherwise skip the test.
res = isctest.query.tcp(msg, "10.53.0.2")
rrsigs = res.get_rrset(
res.answer,
dns.name.from_text("multiple-rrsigs.example."),
dns.rdataclass.IN,
dns.rdatatype.RRSIG,
dns.rdatatype.A,
)
assert len(rrsigs) > 2
if (
rrsigs[0].key_tag != MALFORMED_ZSK_KEY_TAG
or rrsigs[1].key_tag != MALFORMED_ZSK_KEY_TAG
):
pytest.skip("valid RRSIG listed first in response, re-run test")
openssl_vers = ns3.log.grep(log_openssl_version)
if openssl_vers and int(openssl_vers[0].group(1)) >= 3:
# extra check for OpenSSL 3.0.0+
with ns3.watch_log_from_here() as watcher:
res = isctest.query.tcp(msg, "10.53.0.3")
# check the OpenSSL-specific log message appears exactly twice:
# one failure is allowed by setting max-validation-failures-per-fetch 1;
matches = watcher.wait_for_all(
[
log_openssl_failure,
log_validation_failed,
]
)
assert len([m for m in matches if m.re == log_openssl_failure]) == 2
else:
res = isctest.query.tcp(msg, "10.53.0.3")
isctest.check.servfail(res)