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Certificate transparency: New part of PKI infrastructure

Certificate transparency: New part of PKI infrastructure. A presentation by Dmitry Belyavsky, TCI ENOG 7 Moscow, May 26-27, 2014. About PKI *).

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Certificate transparency: New part of PKI infrastructure

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  1. Certificate transparency:New part of PKI infrastructure A presentation by Dmitry Belyavsky, TCI ENOG 7 Moscow, May 26-27, 2014

  2. About PKI *) *)PKI (public-key infrastructure) is a set of hardware, software, people, policies, and procedures needed to create, manage, distribute, use, store, and revoke digital certificates

  3. Check the server certificate The server certificate signed correctly by any of them? Many trusted CAs YES NO We warn the user Everything seems to be ok!

  4. DigiNotar case OCSP requests for the fake *.google.com certificate Source: FOX-IT, Interim Report, http://cryptome.org/0005/diginotar-insec.pdf

  5. PKI: extra trust

  6. Certificate Transparency: how it works

  7. Certificate Transparency: how it works Source: http://www.certificate-transparency.org

  8. Certificate Transparency how it works Source: http://www.certificate-transparency.org

  9. Certificate Transparency current state http://www.certificate-transparency.org/certificate-transparency-in-chrome http://www.certificate-transparency.org/ev-ct-plan

  10. Certificate Transparency current state

  11. Certificate Transparency: protect from what? SAVE from MITM attack • Warning from browser • Site owner can watch logs for certs Do NOT SAVE from HEARTBLEED!

  12. Certificate transparency and Russian GOST crypto Russian GOST does not save from the MITM attack Algorithm SHA-256 >>> GOSTR34.11-2012 Key >>> GOST R 34.10-2012

  13. Q&A • Questions? • Drop ‘em at: • beldmit@tcinet.ru

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