Re: [DNSOP] If DNSSEC signatures do not validate ...
Davey Song <songlinjian@gmail.com> Tue, 28 April 2020 14:22 UTC
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From: Davey Song <songlinjian@gmail.com>
Date: Tue, 28 Apr 2020 22:22:18 +0800
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To: Shumon Huque <shuque@gmail.com>
Cc: Paul Wouters <paul@nohats.ca>, dnsop <dnsop@ietf.org>
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Subject: Re: [DNSOP] If DNSSEC signatures do not validate ...
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That language could probably use some clarification. I would interpret > "if .. none of the RRSIGs can be validated" as "if .. none of the RRSIGs > can be validated from _any_ of the authority servers". In practice, every > validating resolver I'm familiar with will retry other servers upon > signature > validation failure. > OK. It make sense to try every name servers to defend the case if the adversary only intercept one path. But the adversary also know the resolver will retry other servers. So a smarter adversary may intercept in the aggregated upstreaming path where all queries are sent. Otherwise, we would have a very fragile system - an > adversary would just have to be able to intercept one path between resolver > and one of the authority servers for a zone to cause resolution failure. > Davey >
- [DNSOP] If DNSSEC signatures do not validate ... Davey Song
- Re: [DNSOP] If DNSSEC signatures do not validate … Paul Wouters
- Re: [DNSOP] If DNSSEC signatures do not validate … Davey Song
- Re: [DNSOP] If DNSSEC signatures do not validate … Shumon Huque
- Re: [DNSOP] If DNSSEC signatures do not validate … Davey Song
- Re: [DNSOP] If DNSSEC signatures do not validate … Paul Wouters
- Re: [DNSOP] If DNSSEC signatures do not validate … Shumon Huque
- Re: [DNSOP] If DNSSEC signatures do not validate … Davey Song
- Re: [DNSOP] If DNSSEC signatures do not validate … Ben Schwartz