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Gottesman and Chuang Quantum Digital Signature: Difference between revisions
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Gottesman and Chuang Quantum Digital Signature (edit)
Revision as of 08:15, 28 May 2019
, 28 May 2019→Properties
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*Sending m bits message uses O(m) quantum bits for each recipient. | *Sending m bits message uses O(m) quantum bits for each recipient. | ||
*The public keys can be used only once. | *The public keys can be used only once. | ||
*Only limited (T) distribution of public keys should be allowed, such that <math>T < L/n</math>, where quantum public key is an 'n' qubit state and L is the length of classical bit string. | |||
* Unlike some classical information-theoretic (unconditional security) schemes which require secure anonymous broadcast channel or noisy channel, which are hard to achieve resources, the quantum scheme provides information-theoretic security by only demanding plausible quantum channels and modest interaction between parties involved. | * Unlike some classical information-theoretic (unconditional security) schemes which require secure anonymous broadcast channel or noisy channel, which are hard to achieve resources, the quantum scheme provides information-theoretic security by only demanding plausible quantum channels and modest interaction between parties involved. | ||