Max-Planck-Institut für Informatik
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What and Who
Title:Reconciling online privacy and societal security
Speaker:Mark Ryan
coming from:University of Birmingham
Speakers Bio:http://www.cs.bham.ac.uk/~mdr/
Event Type:CISPA Distinguished Lecture Series
Visibility:D1, D2, D3, D4, D5, SWS, RG1, MMCI
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Level:AG Audience
Language:English
Date, Time and Location
Date:Thursday, 2 October 2014
Time:14:00
Duration:90 Minutes
Location:Saarbr├╝cken
Building:E1 5
Room:0.02
Abstract
The certificate authority model for authenticating public keys of websites has been attacked in recent years, and several proposals have been made to reinforce it. We develop and extend \emph{certificate transparency}, a proposal in this direction, so that it efficiently handles certificate revocation. We show how this extension can be used to build a secure end-to-end email or messaging system using PKI with no requirement to trust certificate authorities, or to rely on complex peer-to-peer key-signing arrangements such as PGP. This makes end-to-end encrypted mail possible, with apparently few additional usability issues compared to unencrypted mail (specifically, users do not need to understand or concern themselves with keys or certificates). Underlying these ideas is a new attacker model appropriate for cloud computing, which we call ``malicious-but-cautious''.
Contact
Name(s):Isa Maurer
Phone:302-71922
EMail:--email address not disclosed on the web
Video Broadcast
Video Broadcast:NoTo Location:
Tags, Category, Keywords and additional notes
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Attachments, File(s):
  • Isa Maurer, 10/01/2014 11:20 AM
  • Isa Maurer, 09/23/2014 11:32 AM -- Created document.