Editing Quantum Digital Signature
Jump to navigation
Jump to search
The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then publish the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
==Functionality== | ==Functionality== | ||
Digital Signatures ( | Digital Signatures (DS) allow for the exchange of single or multiple bit classical messages from sender to multiple recipients, with a guarantee that the signature has come from a genuine sender and the properties of transferability, non-repudiation and unforgeability (see [[Properties]]). | ||
==Protocols== | |||
For simlicity, most protocols use the case of three parties, one sender (Seller) and two recipients (Buyer and Verifier) exchanging one-bit classical messages signed by Quantum Digital Signatures (QDS). | |||
*[[Quantum Digital Signature with Quantum Memory]] | |||
* | *[[Prepare and Measure Quantum Digital Signature]] | ||
*[[Measurement Device Independent Quantum Digital Signature (MDI-QDS)]] | |||
* [[ | |||
* [[ | |||
== | ==Use Case== | ||
Signing e-Marksheet, Financial Transactions, Software Distribution, Cryptocurrencies, e-voting | |||
Tags: [[Multi Party Protocols|Multi Party]], [[Quantum Enhanced Classical Functionality]], [[Specific Task]], [[Blind Quantum Digital Signature]], [[Arbitrated Signature]], [[Quantum Proxy Signature]], [[Designated Verifiable Quantum Signature]], [[Limited Delegation of Quantum Signature]] | |||
==Properties== | ==Properties== | ||
All QDS protocols are divided into two phases, distribution and messaging. Distribution phase enables sender to generate private keys (kept secret with sender) and public keys ( | All QDS protocols are divided into two phases, distribution and messaging. Distribution phase enables sender to generate private keys (kept secret with sender) and public keys (distributed to recipients) while messaging phase enables exchange of messages using the above keys. | ||
*A QDS scheme is correct if a message signed by a genuine sender is accepted by a recipient with unit probability. | *A QDS scheme is correct if a message signed by a genuine sender is accepted by a recipient with unit probability. | ||
*A QDS scheme is secure if no one but the sender can sign a message such that it is accepted by a recipient with non-negligible probability. | *A QDS scheme is secure if no one but the sender can sign a message such that it is accepted by a recipient with non-negligible probability. | ||
Line 37: | Line 22: | ||
*'''Non-Repudiation''' implies that at any point a dishonest sender (seller) cannot deny having signed the message sent to a genuine recipient (Buyer). | *'''Non-Repudiation''' implies that at any point a dishonest sender (seller) cannot deny having signed the message sent to a genuine recipient (Buyer). | ||
== | ==Discussion== | ||
(Review Paper by Petros) | |||
[[Category:Multi Party Protocols]] | |||