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EMU and DANE

EMU and DANE. Jim Schaad August Cellars. EMU TLS Issues. Trust Anchor Matching PKIX cert to EMU Server Name Certificate Revocation Checking CRLs OCSP. DANE Review. Use DNS as alternative or secondary trust framework New Records for cert/public key information

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EMU and DANE

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  1. EMU and DANE Jim Schaad August Cellars

  2. EMU TLS Issues • Trust Anchor • Matching PKIX cert to EMU Server Name • Certificate Revocation Checking • CRLs • OCSP

  3. DANE Review • Use DNS as alternative or secondary trust framework • New Records for cert/public key information • Naming: _<port>._<protocol>.<Domain Name> • Matching: • Trust Anchor (Root) • CA • EE

  4. DANE Stapling • Addresses Trust Anchor Issue • Addresses matching Certificate Name • Create a new _teap._emu.<Domain Name> DNS record set • Use existing TLSA records • Build list of DNSSEC records and pass in TLS extension • If necessary – new record for name matching

  5. OCSP Stapling • Addresses certificate chain validation • Pass OCSP responses in TLS extension • Need to establish trust in OCSP responder • Maybe fix with DANE record • Maybe fix by returning CRLs • Maybe fix by making the Trust Anchor the OCSP responder

  6. Work List • Need DANE naming convention done in EMU • Need DANE stapling TLS extension – Probably done in DANE • Need OCSP stapling TLS extension done in TLS • Draft-pettersen-tls-ext-multiple-ocsp-03.txt

  7. Questions?

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