Method and Apparatus of Lattice-based Linearly Homomorphic Signature with Multiple Signers under Cloud System

摘要

A lattice-based linear quasi-signature method and apparatus for group signatures in a cloud environment is presented. A lattice-based linear quasi-dynamic signature method for a group signer in a cloud environment comprises: receiving a message to be signed by a group manager; Generating a modified message to which an error is added to the message received by the group manager; And distributing the modification message to each of the plurality of signers by the group manager.