QUANTUM BIT COMMITMENT WITH SECRET PARAMETERS
نویسندگان
چکیده
منابع مشابه
Quantum bit string commitment.
A bit string commitment protocol securely commits N classical bits so that the recipient can extract only M<N bits of information about the string. Classical reasoning suggests that bit string commitment implies bit commitment and hence, given the Mayers-Lo-Chau theorem, that nonrelativistic quantum bit string commitment is impossible. Not so: there exist nonrelativistic quantum bit string comm...
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This paper is reversing the current belief on Quantum Bit Commitment. Several papers have claimed and given a formal proof that quantum bit commitment is impossible. Nevertheless, the hypotheses of the formal mathematical model are too restrictive and do not exhaustively reflect the original definition of the problem. They share the same unnecessary restriction that the responsibility of hiding...
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Assume that a party, Alice, has a bit x in mind, to which she would like to be committed toward another party, Bob. That is, Alice wishes, through a procedure commit(x), to provide Bob with a piece of evidence that she has a bit x in mind and that she cannot change it. Meanwhile, Bob should not be able to tell from that evidence what x is. At a later time, Alice can reveal, through a procedure ...
متن کاملRelativistic Quantum Bit Commitment
A new relativistic quantum protocol is proposed allowing to implement the bit commitment scheme. The protocol is based on the idea that in the relativistic case the field propagation to the region of space accessible to measurement requires, contrary to the non-relativistic case, a finite non-zero time which depends on the structure of the particular state of the field. In principle, the secret...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics B
سال: 2007
ISSN: 0217-9792,1793-6578
DOI: 10.1142/s0217979207045517