| BOUDA, Jan, Paulo MATEUS, Nicola PAUNKOVIC a Joao RASGA. ON THE POWER OF QUANTUM TAMPER-PROOF DEVICES. International Journal of Quantum Information. World Scientific, 2008, roč. 6, č. 2, s. 281 - 302. ISSN 0219-7499. |
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@article{767107,
author = {Bouda, Jan and Mateus, Paulo and Paunkovic, Nicola and Rasga, Joao},
article_number = {2},
keywords = {quantum information processing; cryptography},
language = {eng},
issn = {0219-7499},
journal = {International Journal of Quantum Information},
title = {ON THE POWER OF QUANTUM TAMPER-PROOF DEVICES},
volume = {6},
year = {2008}
}
TY - JOUR
ID - 767107
AU - Bouda, Jan - Mateus, Paulo - Paunkovic, Nicola - Rasga, Joao
PY - 2008
TI - ON THE POWER OF QUANTUM TAMPER-PROOF DEVICES
JF - International Journal of Quantum Information
VL - 6
IS - 2
SP - 281 - 302
EP - 281 - 302
PB - World Scientific
SN - 02197499
KW - quantum information processing
KW - cryptography
N2 - We show how quantum tamper-proof devices (QTPD's) can be used to attack and to develop security protocols. On one hand, we prove that it is possible to transfer proofs of zero-knowledge protocols using QTPD's. This attack can be extended to other security schemes where privacy is important. On the other hand, we present a fair contract signing protocol using QTPD's where there is no communication with Judge during the exchange phase (which is impossible classically). In the latter case, we make use of decoherence in the quantum state of the QTPD to implement a global clock over the asynchronous network. QTPD's seem to be possible to implement with existing quantum hardware, due to the fact that it is hard to isolate quantum memory from interference. These theoretical results contribute to justify the implementation of QTPD's.
ER -
BOUDA, Jan, Paulo MATEUS, Nicola PAUNKOVIC a Joao RASGA. ON THE POWER OF QUANTUM TAMPER-PROOF DEVICES. \textit{International Journal of Quantum Information}. World Scientific, 2008, roč.~6, č.~2, s.~281 - 302. ISSN~0219-7499.
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