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DNSSEC10 gives false errors #1153

Description

@matsduf

DNSSEC10 gives false error when the zone is signed with NSEC3, NSEC3 opt-out flag is set and wildcard is present. Possibly for other cases too.

There are problems with the implementation, and possibly with the specification too. The test case is too complex to reach the purpose of the test case.

The problematic message tag is DS10_ANSWER_VERIFY_ERROR, which is show below.

# zonemaster-cli hyttbatar.se --show-testcase --test dnssec/dnssec10
Seconds Level     Testcase       Message
======= ========= ============== =======
   0.46 ERROR     DNSSEC10       The name "xx--oplk4f3fgh9lksdfhu7h--xx.hyttbatar.se." of RR type "A" is signed by RRSIG, but the signature or signatures cannot be verified. Fetched from the nameservers with IP addresses "2a02:250:ffff::20;2a02:250:ffff::21;93.188.0.20;93.188.0.21".

It passes according to DNSviz:

image

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    A-TestCaseArea: Test case specification or implementation of test caseT-BugType: Bug in software or error in test case description

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