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A Framework forDistributedAnonymous
Data Collectionand Feedback
Max Timchenko Ari Trachtenberg
Poster:
• ACM Systor 2015
• IEEE S&P 2015 (Oakland)
Modified Microsoft crash reporter message window showing potential forabuse of diagnostic data sent in plaintext. SPIEGEL ONLINE
Our system
Example use cases
• Malware detection from DNS queries
• Software popularity
• Traffic information
Wikipedia
... like waze
Analysis
Time for submission of report – queuing analysis.
(sec
)
Guarantees
Anonymity:against Eve• Cannot distinguish two reports• Can count reports per relay
• does not know where they originated
against relay compromise• Cannot recover plaintext• Can alter relay probabilities
• does not know for whom
against core compromise• See plaintext for one epoch
• Does not see originator• Cannot correlate against other epochs
Guarantees
Disruption:
Validity of feedback:
