Measurement Device Independent Quantum Digital Signature (MDI-QDS): Difference between revisions

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**'''Key Distribution:'''
**'''Key Distribution:'''
#For k = 0,1
#For k = 0,1
##S_B^k=B^k=MDI-KGP(Seller, Buyer, Arbitrator)
##<math>S_B^k=B^k=MDI-KGP(Seller, Buyer, Arbitrator)</math>
##S_V^k=V^k=MDI-KGP(Seller, Verifier, Arbitrator)
##<math>S_V^k=V^k=MDI-KGP(Seller, Verifier, Arbitrator)</math>


**'''Symmetrisation'''
**'''Symmetrisation'''
##For k = 0,1
##For k = 0,1
### Buyer chooses I<math>\subset_R\{1,2,...,L\}, |I|=[L/2]</math>
### Buyer chooses <math>I\subset_R\{1,2,...,L\}, |I|=[L/2]</math>
### <math>\forall i\epsilon I</math>, Buyer sends Verifier <math>(k,i,B^k_i)</math>  
### <math>\forall i\epsilon I</math>, Buyer sends Verifier <math>(k,i,B^k_i)</math>  
### Verifier chooses J<math>\subset_R\{1,2,...,L\}, |J|=[L/2]</math>
### Verifier chooses <math>J\subset_R\{1,2,...,L\}, |J|=[L/2]</math>
### <math>\forall j\epsilon J</math>, Verifier sends Buyer <math>(k,j,V^k_j)</math>  
### <math>\forall j\epsilon J</math>, Verifier sends Buyer <math>(k,j,V^k_j)</math>  


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