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Lecture Notes in Computer Science
We present in this paper an improvement of the lattice-based threshold ring signature proposed by Cayrel, Lindner, Rückert and Silva (CLRS) [LATINCRYPT '10]. We generalize the same identification scheme CLRS to obtain a more efficient threshold ring signature. The security of our scheme relies on standard lattice problems. The improvement is a significant reduction of the size of the signature. Our result is a t-out-of-N threshold ring signature which can be seen as t different ring signaturesdoi:10.1007/978-3-642-38616-9_3 fatcat:73g4ekox2nhf7kwlpdm7yz4hwq