133 citations · 503 across the 9 of their papers we have counts for
9 papers · 1 filter
Imperfect 1-out-of-2 quantum oblivious transfer: bounds, a protocol, and its experimental implementation
Ryan Amiri, Robert Stárek, David Reichmuth +6
Oblivious transfer is an important primitive in modern cryptography. Applications include secure multiparty computation, oblivious sampling, e-voting, and signatures. Information-t…
Experimental preparation and verification of quantum money
Jian-Yu Guan, Juan Miguel Arrazola, Ryan Amiri +6
A quantum money scheme enables a trusted bank to provide untrusted users with verifiable quantum banknotes that cannot be forged. In this work, we report an experimental demonstrat…
Secret key expansion from covert communication
Juan Miguel Arrazola, Ryan Amiri
Covert communication allows us to transmit messages in such a way that it is not possible to detect that the communication is occurring. This provides protection in situations wher…
Measurement-Device-Independent Quantum Digital Signatures
Ittoop Vergheese Puthoor, Ryan Amiri, Petros Wallden +2
Digital signatures play an important role in software distribution, modern communication and financial transactions, where it is important to detect forgery and tampering. Signatur…
Quantum money with nearly optimal error tolerance
Ryan Amiri, Juan Miguel Arrazola
We present a family of quantum money schemes with classical verification which display a number of benefits over previous proposals. Our schemes are based on hidden matching quantu…
Experimental transmission of quantum digital signatures over 90-km of installed optical fiber using a differential phase shift quantum key distribution system
Robert J. Collins, Ryan Amiri, Mikio Fujiwara +7
Quantum digital signatures apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementa…
Experimental demonstration of kilometer-range quantum digital signatures
Ross James Donaldson, Robert John Collins, Klaudia Kleczkowska +6
We present an experimental realization of a quantum digital signature protocol which, together with a standard quantum key distribution link, increases transmission distance to kil…
Unconditionally Secure Quantum Signatures
Ryan Amiri, Erika Andersson
Signature schemes, proposed in 1976 by Diffie and Hellman, have become ubiquitous across modern communications. They allow for the exchange of messages from one sender to multiple…
Secure Quantum Signatures Using Insecure Quantum Channels
Ryan Amiri, Petros Wallden, Adrian Kent +1
Digital signatures are widely used in modern communication to guarantee authenticity and transferability of messages, The security of currently used classical schemes relies on com…