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PrivCirNet: Efficient Private Inference via Block Circulant Transformation
May 24, 2024, 4:12 a.m. | Tianshi Xu, Lemeng Wu, Runsheng Wang, Meng Li
cs.CR updates on arXiv.org arxiv.org
Abstract: Homomorphic encryption (HE)-based deep neural network (DNN) inference protects data and model privacy but suffers from significant computation overhead. We observe transforming the DNN weights into circulant matrices converts general matrix-vector multiplications into HE-friendly 1-dimensional convolutions, drastically reducing the HE computation cost. Hence, in this paper, we propose \method, a protocol/network co-optimization framework based on block circulant transformation. At the protocol level, PrivCirNet customizes the HE encoding algorithm that is fully compatible with the block …
arxiv block computation cost cs.ai cs.cr data encryption general homomorphic encryption matrix network neural network observe privacy private transformation
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