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Authorized Function Homomorphic Signature, Qingwen Guo, Qiong Huang, Guomin Yang
Authorized Function Homomorphic Signature, Qingwen Guo, Qiong Huang, Guomin Yang
Research Collection School Of Computing and Information Systems
Homomorphic signature (HS) is a novel primitive that allows an agency to carry out arbitrary (polynomial time) computation f on the signed data (m) over right arrow and accordingly gain a signature sigma(h) for the computation result f ((m) over right arrow) with respect to f on behalf of the data owner (DO). However, since DO lacks control of the agency's behavior, receivers would believe that DO did authenticate the computation result even if the agency misbehaves and applies a function that the DO does not want. To address the problem above, in this paper we introduce a new primitive …