Quantum Cheque: Difference between revisions

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==Notation==
==Notation==
* <math>k</math>: Shared key between account holder and bank where <math>k \in \{0,1\}^L</math>.
* <math>k</math>: Shared key between account holder and bank where <math>k \in \{0,1\}^L</math>.
* <math>\Pi</math>: A decided Digital Signature scheme, which could also be [[Quantum Digital Signature]] or any other classical digital signature scheme, where <math>\Pi=(Gen, Sign, Vrfy)</math>.
* <math>\Pi</math>: A decided Digital Signature scheme, which could also be [[Quantum Digital Signature]] or any other classical digital signature scheme, where <math>\Pi=(Gen, Sign, Vrfy)</math>. Here <math>Gen</math> is the digital signature generation funciton, <math>Sign</math> is the signing function and <math>Vrfy</math> is the function which verifies if the digital signature belongs to a party.
* <math>id</math>: Account holder's identity.
* <math>id</math>: Account holder's identity.
* <math>pk</math>: Account holder's public key.
* <math>pk</math>: Account holder's public key.
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