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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. | ||