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How Certificate Transparency Impact the Performance
Linköping University, Department of Computer and Information Science.
Linköping University, Department of Computer and Information Science.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
Abstract [en]

Security on the Internet is essential to ensure the privacy of an individual. Today, Trans- port Layer Security (TLS) and certificates are used to ensure this. But certificates are not enough in order to maintain confidentiality and therefore a new concept, Certificate Trans- parency (CT), has been introduced. CT improves security by allowing the analysis of sus- picious certificates. Validation by CT uses public logs that can return Signed Certificate Timestamp (SCT), which is a promise returned by the log indicating that the certificate will be added to the log. A server may then deliver the SCT to a client in three different ways: X.509v3 extension, Online Certificate Status Protocol (OSCP) stapling and TLS extension. For further analysis, we have created a tool to collect data during TLS handshakes and data transfer, including byte information, the certificates themselves, SCT delivery method and especially timing information. From our dataset we see that most websites do not use CT and the ones that use CT almost only use X.509 extension to send their SCTs.

Place, publisher, year, edition, pages
2017. , p. 25
Keywords [en]
SCT, Certificate Transparency, CT, Network Performance, TLS, OCSP, X.509
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:liu:diva-140838ISRN: LIU-IDA/LITH-EX-G–17/072–SEOAI: oai:DiVA.org:liu-140838DiVA, id: diva2:1140915
Subject / course
Information Technology
Supervisors
Available from: 2017-09-15 Created: 2017-09-13 Last updated: 2018-01-13Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf