Leveraging Photonic Interconnects for Scalable and Efficient Fully Homomorphic Encryption

TL;DR

This paper introduces OptoLink, a photonic interconnect architecture that significantly enhances data transfer rates and scalability for Fully Homomorphic Encryption systems, addressing current bandwidth and latency bottlenecks.

Contribution

The paper proposes a novel photonic interconnect architecture, OptoLink, that dramatically increases bandwidth and reduces latency in FHE accelerators, enabling more scalable and efficient secure computations.

Findings

Achieves 1.6 TB/s throughput with 128 channels

Provides 300 times the bandwidth of electrical interconnects

Improves scalability and reduces latency in FHE systems

Abstract

Fully Homomorphic Encryption (FHE) facilitates secure computations on encrypted data but imposes significant demands on memory bandwidth and computational power. While current FHE accelerators focus on optimizing computation, they often face bandwidth limitations that result in performance bottlenecks, particularly in memory-intensive operations. This paper presents OptoLink, a scalable photonic interconnect architecture designed to address these bandwidth and latency challenges in FHE systems. OptoLink achieves a throughput of 1.6 TB/s with 128 channels, providing 300 times the bandwidth of conventional electrical interconnects. The proposed architecture improves data throughput, scalability, and reduces latency, making it an effective solution for meeting the high memory and data transfer requirements of modern FHE accelerators.