Work

Defeating classical bit commitments with a quantum computer

Year: 1998
Type: preprint
Abstract: It has been recently shown by Mayers that no bit commitment scheme is secure if the participants have unlimited computational power and technology. However it was noticed that a secure protocol could be obtained by forcing the cheater to perform a measurement. Similar situations had been encountered previously in the design of Quantum Oblivious Transfer. The question is whether a classical bit commitment could be used for this specific purpose. We demonstrate that, surprisingly, classical unconditionally concealing bit commitments do not help.
Language: English
Open Access status: green
OpenAlex ID: W2128021285
Cites: 19
Cited by: 20
Related to: 10