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Prepare and Measure Quantum Digital Signature: Difference between revisions
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Prepare and Measure Quantum Digital Signature (edit)
Revision as of 16:19, 3 June 2019
, 3 June 2019→Outline
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*'''Symmetrisation:''' The two receivers exchange half of their randomly chosen eliminated signature elements. This prevents a dishonest seller to succeed in cheating by sending dissimilar public keys to the receivers. Thus ends the distribution phase. | *'''Symmetrisation:''' The two receivers exchange half of their randomly chosen eliminated signature elements. This prevents a dishonest seller to succeed in cheating by sending dissimilar public keys to the receivers. Thus ends the distribution phase. | ||
Next the messaging phase is divided into the following steps: | |||
*''' Signing:''' Seller sends desired classical one-bit message and the corresponding private key to the desired receiver (called buyer). Buyer compares the private key with his eliminated signature for the corresponding message and counts the number of mismatches (eliminated signature element in seller’s private key). | *''' Signing:''' Seller sends desired classical one-bit message and the corresponding private key to the desired receiver (called buyer). Buyer compares the private key with his eliminated signature for the corresponding message and counts the number of mismatches (eliminated signature element in seller’s private key). | ||
*''' Transfer:''' Buyer forwards the same message and private key to the other receiver (called verifier) who compares it with his eliminated signature for this message. | *''' Transfer:''' Buyer forwards the same message and private key to the other receiver (called verifier) who compares it with his eliminated signature for this message. | ||