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Arbitrated Quantum Digital Signature: Difference between revisions
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==Notation== | ==Notation== | ||
* <math>n</math>: Total number of qubits of message. | * <math>n</math>: Total number of qubits of message. | ||
* <math>f</math>: public function to obtain public key from user's email-id | |||
* <math>k_{pub}</math>: Signer's public key, where <math>k_{pub} \in \{0,1\}^n</math>. | * <math>k_{pub}</math>: Signer's public key, where <math>k_{pub} \in \{0,1\}^n</math>. | ||
* <math>k_{pri}</math>: Signer's private, where <math>k_{pri} \in \{0,1\}^n</math>. | * <math>k_{pri}</math>: Signer's private, where <math>k_{pri} \in \{0,1\}^n</math>. | ||
* <math>k_r</math>: Random OTP number selected by PKG to denote each of Signer's signatures, where <math>k_{r} \in \{0,1\}^n</math>. | * <math>k_r</math>: Random OTP number selected by PKG to denote each of Signer's signatures, where <math>k_{r} \in \{0,1\}^n</math>. | ||
* <math>VC(x,y)</math>: function VC performs one time pads 'y' using quantum pad key 'x' via [[Vernam Cipher]] | |||
* <math>k_{at}</math>: Shared key between the Signer and PKG where <math>k_{at} \in \{0,1\}^n</math>. | * <math>k_{at}</math>: Shared key between the Signer and PKG where <math>k_{at} \in \{0,1\}^n</math>. | ||
* <math>E_{k_{at}}</math>: Quantum Vernam cipher encrypted state which uses <math>k_{at}</math>. | * <math>E_{k_{at}}</math>: Quantum Vernam cipher encrypted state which uses <math>k_{at}</math>. | ||