Defense Dissertation Viktoria Ronge: “Security and Privacy of Cryptocurrency Signatures”

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The defense of Viktoria Ronge’s dissertation titled “Security and Privacy of Cryptocurrency Signatures” will take place on 23 October 2023 at 5:00 PM CEST.

The defense will take place in Erlangen, Martensstr. 3, seminar room 12th floor.


Cryptocurrencies have become an indispensable part of today’s world. In their various forms they play an increasingly important role, both as a financial investment product and as a means of payment. However, since one does not directly see the parties involved in a transaction but at most unique identifiers, there exists still the erroneous assumption that cryptocurrencies are anonymous per se. This thesis deals with different forms of anonymity within the system of cryptocurrencies themself and what has to be considered when trying to deanonymize. Here, the term anonymity is used more broadly to refer not only to the fact that it is not known who the actual sender (or receiver) in a given transaction is, but also that actually existing connections between different identifiers cannot be detected. The focus is on the cryptocurrencies Bitcoin, Monero and Zcash. Bitcoin was chosen because it is the currency with the highest market capitalization of all, while Monero and Zcash have the highest market capitalization among such currencies, which by their construction ensure a certain degree of anonymity for both sender and receiver.