Provably secure robust optimistic fair exchange of distributed signatures

• Main Authors: WANG, Yujue, WU, Qianhong, WONG, Duncan S., QIN, Bo, MAO, Jian, DING, Yong
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2016
• Subjects: Optimistic fair exchange; Distributed signature; Secret sharing; Monotone span program; Verifiably encrypted signatures; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/3187; https://ink.library.smu.edu.sg/context/sis_research/article/4188/viewcontent/ProvablySecureRobustOptimisticFairExchangeSignatures_2016_afv.pdf
• Institution: Singapore Management University

We introduce the concept of optimistic fair exchange of distributed signatures (OFEDS) which allows two groups of parties to fairly exchange digital signatures. Specifically, an authorized set of parties from each group can jointly take part in the protocol on behalf of the affiliated group to fulfi...