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Prepare and Measure Quantum Digital Signature: Difference between revisions
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Prepare and Measure Quantum Digital Signature (edit)
Revision as of 20:57, 10 October 2018
, 10 October 2018→Algorithm
| Line 38: | Line 38: | ||
#For k = 0,1 | #For k = 0,1 | ||
## Seller prepares quantum public key , where | ## Seller prepares quantum public key , where | ||
## She sends Buyer (k,| | ## She sends Buyer (k,<math>|\psi^k\rangle</math>) | ||
## She sends Verifier (k,| | ## She sends Verifier (k,<math>|\psi^k\rangle</math>) | ||
**'''State Elimination:''' <math>b^k_l</math> denotes Buyer’s random bit to determine the measurement basis of <math>l^{th}</math> qubit in the quantum public key <math>|\psi^k\rangle</math> for message k#For k = 0,1 | **'''State Elimination:''' <math>b^k_l</math> denotes Buyer’s random bit to determine the measurement basis of <math>l^{th}</math> qubit in the quantum public key <math>|\psi^k\rangle</math> for message k | ||
#For k = 0,1 | |||
##For l = 1,2,...,L | ##For l = 1,2,...,L | ||
### Buyer chooses <math>b^ | ### Buyer chooses <math>b^k_l \epsilon_R {0,1}</math> | ||
###If | ###If <math>b^k_l=0</math>, Buyer measures his qubit in X basis {<math>|+\rangle,|-\rangle</math>} | ||
### | ###If <math>b^k_l=0</math>, Buyer measures his qubit in Z basis {<math>|0\rangle,|1\rangle</math>} | ||
###'''return''' <math>m_{b^k_l}</math> | |||
**Verifier repeats steps 2(a)-2(b) with randomly chosen basis <math>c^k_l</math> to get his eliminated signature elements <math>C^k_l</math> | |||
**'''Symmetrisation''' | **'''Symmetrisation''' | ||