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Large Scale Scanning of TLS Session Ticket Confusion / Tim Storm ; Supervisors: Prof. Dr.-Ing. Juraj Somorovsky, Prof. Dr. Eric Bodden, Sven Hebrok M.Sc. Paderborn, 2023
Inhalt
Introduction
Current State of Research
Contributions
Organization of the Thesis
Background
TLS
Handshake
sni
Session Resumption using Session Tickets
Session resumption using psk
Recommended Ticket Construction
SNI in Session Resumptions
Session Ticket Confusion Attack
Differences in TLS 1.3
Attacker Model
TLS-Attacker
Design
Previous Work
Design Goals
Scanning for STEK Sharing
Restricting the Search Space to Promising Candidates
Implementation
Preprocessing
Grouping
Scanning
Overall Architecture
Scanning Job
Evaluation
Scans
Results
STEK Sharing
Behavior Within Groups
Identifying Common Properties
Vulnerablity to Real-World Ticket Confusion
Supplementary CDN Scan
Discussion
Limitations
Conclusion
Bibliography
List of Figures
List of Tables
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