CANCELLED: DLS in Cybersecurity - Tracing Stolen Bitcoin

12. Juli 2018 von 16:15 – 17:15 Uhr

Ort: TU Darmstadt | Piloty-Gebäude S2|02 | Raum C 110 | Hochschulstraße 10 | Darmstadt

Dozent/-in: Prof. Ross Anderson, University of Cambridge Computer Laboratory, UK

Diese DLS in Cybersecurity kann leider nicht stattfinden. Sie wird zu einem späteren Zeitpunkt nachgeholt werden.

We've been exploring how to track stolen bitcoin. Previous attempts to do this had got entangled in the problem of dealing with transactions that split bitcoin into change, or that consolidate smaller sums into larger ones, and with mining fees. One answer comes from an unexpected direction: a legal precedent in 1816....

The High Court had to tackle a similar problem in Clayton’s case, which involved the assets and liabilities of a bank that had gone bust. The court ruled that money must be tracked through accounts on the basis of first-in, first out (FIFO); the first penny into an account goes to satisfy the first withdrawal, and so on. We therefore coded up FIFO taint tracking and found that it works very much better than the methods used to date. But this is not the end of the story, but the beginning. Given a new telescope, you point it at the heavens to see what new wonders you can see. Once we start looking seriously at the blockchain, and trying to trace real stolen bitcoin, we find that things are not at all as described either in the academic literature, or in the marketing material of the cryptocurrency industry.

Blog post to Light Blue Touchpaper

YouTube video "Stolen Bitcoin Tracing - Computerphile"

Information about Ross Anderson

Zur Veranstaltungs-Übersicht