Welcome to the resource topic for 2024/744
Title:
An NVMe-based Secure Computing Platform with FPGA-based TFHE Accelerator
Authors: Yoshihiro Ohba, Tomoya Sanuki, Claude Gravel, Kentaro Mihara
Abstract:In this paper, we introduce a new approach to secure computing by implementing a platform that utilizes an NVMe-based system with an FPGA-based Torus FHE accelerator, SSD, and middleware on the host-side. Our platform is the first of its kind to offer complete secure computing capabilities for TFHE using an FPGA-based accelerator. We have defined secure computing instructions to evaluate 14-bit to 14-bit functions using TFHE, and our middleware allows for communication of ciphertexts, keys, and secure computing programs while invoking secure computing programs through NVMe commands with metadata. Our CMux gate implementation features an optimized NTT/INTT circuit that eliminates pre-NTT and post-INTT operations by pre-scaling and pre-transforming constant polynomials such as the bootstrapping and private-functional key-switching keys. Our performance evaluation demonstrates that our secure computing platform outperforms CPU-based and GPU-based platforms by 15 to 120 times and by 2.5 to 3 times, respectively, in gate bootstrapping execution time. Additionally, our platform uses 7 to 12 times less electric energy consumption during the gate bootstrapping execution time compared to CPU-based platforms and 1.15 to 1.2 times less compared to GPU-based platforms.
ePrint: https://eprint.iacr.org/2024/744
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