Cryptology ePrint Archive: Report 2020/1191
Schrödinger's Pirate: How To Trace a Quantum Decoder
Mark Zhandry
Abstract: We explore the problem of traitor tracing where the pirate decoder can contain a quantum state. Our main results include:
- We show how to overcome numerous definitional challenges to give a meaningful notion of tracing for quantum decoders
- We give negative results, demonstrating barriers to adapting classical tracing algorithms to the quantum decoder setting.
- On the other hand, we show how to trace quantum decoders in the setting of (public key) private linear broadcast encryption, capturing a common approach to traitor tracing.
Category / Keywords: foundations / Quantum, Traitor Tracing
Original Publication (with minor differences): IACR-TCC-2020
Date: received 29 Sep 2020
Contact author: mzhandry at gmail com
Available format(s): PDF | BibTeX Citation
Version: 20200930:075101 (All versions of this report)
Short URL: ia.cr/2020/1191
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