Reliable Fully Homomorphic Disguising Matrix Computation Outsourcing Scheme

摘要

Since errors are very common in the scientific and engineering data and/or evaluation processes. A reliable computation outsourcing scheme should not introduce extra error gains. However, we observed the existing matrix computation outsourcing schemes could not reconcile the reliability and security. In this paper, we introduce a new fully homomorphic matrix disguising scheme, based on sparse unitary disguising matrices, which take into account reliability and security. Our scheme can be regarded as a variant of matrix fully homomorphic applications in Symmetric key cryptosystem also.