Arbitrated Quantum Digital Signature: Difference between revisions

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## Buyer receives <math>(ts, |F\rangle)</math> from PKG.
## Buyer receives <math>(ts, |F\rangle)</math> from PKG.
## Buyer performs SWAP test: '''QSWAP'''(<math>|F\rangle,|F\rangle'</math>)
## Buyer performs SWAP test: '''QSWAP'''(<math>|F\rangle,|F\rangle'</math>)
##If '''QSWAP'''=true, '''then''' w'=w'+1
##If '''QSWAP'''=true, '''then''' <math>w'=w'+1</math>
# If <math>w'>w_0</math> buyer '''accepts'''
# If <math>w'>w_0</math> buyer '''accepts'''
#'''Else''' buyer '''rejects'''
#'''Else''' buyer '''rejects'''
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