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11

ASIACRYPT
2010
Springer

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A Group Signature Scheme from Lattice Assumptions

13 years 2 months ago

A Group Signature Scheme from Lattice Assumptions

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Group signature schemes allow users to sign messages on behalf of a group while (1) maintaining anonymity (within that group) with respect to an observer, yet (2) ensuring traceability of a signer (by the group manager) when needed. In this work we give the first construction of a group signature scheme based on lattices (more precisely, the learning with errors assumption), in the random oracle model. Toward our goal, we construct a new algorithm for sampling a random superlattice of a given modular lattice together with a short basis, that may be of independent interest.

S. Dov Gordon, Jonathan Katz, Vinod Vaikuntanathan

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Added	10 Feb 2011
Updated	10 Feb 2011
Type	Journal
Year	2010
Where	ASIACRYPT
Authors	S. Dov Gordon, Jonathan Katz, Vinod Vaikuntanathan

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