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Recorded: 2023/03/28 Released: 2023/06/18
Jim talks with Jiahui Liu about quantum money. Quantum Money is a key milestone in quantum crytography -- not for the breaking of codes (e.g., Shor's algothrithm), but instead for using quantum computing to improve cryptography beyond what is possible in classical cryptography. The difficulty is, however, a fully satisfactory way to implement quantum money is not currently known. Jiahui discusses both how to show that a possible implementation doesn't work, and how she developed another scheme to implemet quantum money. She also discusses the history of quantum money and some of the things quantum crytographers can do once they have a reliable quantum money scheme.
------------------------------------------- Notes:
1. The articles that we discussed in this program:
- Liu, J., H. Montogomery, and M. Zhandry, "Another Round of Breaking and Making Quantum Money: How to Not Build It from Lattices, and More." in Advances in Cryptography - EUROCRYPT2023 Lecture Notes in Computer Science 14004 611 (2023) [arXiv]
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