Extends a prior privacy-preserving payment protocol using zero-knowledge proofs over an audit log to verify reissuance compliance without exposing payer identity, while highlighting a security property that payers need not retain cross-transaction secrets.
Sign(skS1, vkR1 ) and choose a ran- dom set of indexes I of cardinality n between the indexes of the tokens in Mvalid, including the index k of the token burned using βS1
1 Pith paper cite this work. Polarity classification is still indexing.
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Private Electronic Payments with Self-Custody and Zero-Knowledge Verified Reissuance
Extends a prior privacy-preserving payment protocol using zero-knowledge proofs over an audit log to verify reissuance compliance without exposing payer identity, while highlighting a security property that payers need not retain cross-transaction secrets.