تقرير
OFHE: An Electro-Optical Accelerator for Discretized TFHE
العنوان: | OFHE: An Electro-Optical Accelerator for Discretized TFHE |
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المؤلفون: | Zheng, Mengxin, Chu, Cheng, Lou, Qian, Youngblood, Nathan, Li, Mo, Moazeni, Sajjad, Jiang, Lei |
سنة النشر: | 2024 |
المجموعة: | Computer Science |
مصطلحات موضوعية: | Computer Science - Cryptography and Security, Computer Science - Hardware Architecture |
الوصف: | This paper presents \textit{OFHE}, an electro-optical accelerator designed to process Discretized TFHE (DTFHE) operations, which encrypt multi-bit messages and support homomorphic multiplications, lookup table operations and full-domain functional bootstrappings. While DTFHE is more efficient and versatile than other fully homomorphic encryption schemes, it requires 32-, 64-, and 128-bit polynomial multiplications, which can be time-consuming. Existing TFHE accelerators are not easily upgradable to support DTFHE operations due to limited datapaths, a lack of datapath bit-width reconfigurability, and power inefficiencies when processing FFT and inverse FFT (IFFT) kernels. Compared to prior TFHE accelerators, OFHE addresses these challenges by improving the DTFHE operation latency by 8.7\%, the DTFHE operation throughput by $57\%$, and the DTFHE operation throughput per Watt by $94\%$. |
نوع الوثيقة: | Working Paper |
URL الوصول: | http://arxiv.org/abs/2405.11607 |
رقم الأكسشن: | edsarx.2405.11607 |
قاعدة البيانات: | arXiv |
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