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Constant Size Ring Signature Without Random Oracle
[chapter]
2015
Lecture Notes in Computer Science
Ring signature enables an user to anonymously sign a message on behalf of a group of users termed as 'ring' formed in an 'ad-hoc' manner. A naive scheme produces a signature linear in the size of the ring, but this is extremely inefficient when ring size is large. Dodis et al. proposed a constant size scheme in EUROCRYPT'13, but provably secure in random oracle model. Best known result without random oracle is a sub-linear size construction by Chandran et al. in ICALP'07 and a follow-up work by
doi:10.1007/978-3-319-19962-7_14
fatcat:fcscfw2gabdqrcu4inxksozfsu