Projects per year
Abstract
Homomorphic encryption (HE) has gained broad attention in recent years as it allows computations on encrypted data enabling secure cloud computing. Deploying HE presents a notable challenge since it introduces a performance overhead by orders of magnitude. Hence, most works target accelerating server-side operations on hardware platforms, while little attention has been given to client-side operations. In this paper, we present a novel design methodology to implement and accelerate the client-side HE operations on area-constrained hardware. We show how to design an optimized floating-point unit tailored for the encoding of complex values. In addition, we introduce a novel hardware-friendly algorithm for modulo-reduction of floating-point numbers and propose various concepts for achieving efficient resource sharing between modular ring and floating-point arithmetic. Finally, we use this methodology to implement an end-to-end hardware accelerator, Aloha-HE, for the client-side operations of the CKKS scheme. In contrast to existing work, Aloha-HE supports both encoding and encryption and their counterparts within a unified architecture. Aloha-HE achieves a speedup of up to 59x compared to prior hardware solutions.
Original language | English |
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Title of host publication | 2024 Design, Automation & Test in Europe Conference & Exhibition (DATE) |
Publisher | ACM/IEEE |
Number of pages | 6 |
ISBN (Electronic) | 978-3-9819263-8-5 |
Publication status | Published - 2024 |
Event | 2024 Design, Automation and Test in Europe Conference: DATE 2024 - Valencia, Spain Duration: 25 Mar 2024 → 27 Mar 2024 |
Conference
Conference | 2024 Design, Automation and Test in Europe Conference |
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Abbreviated title | DATE 24 |
Country/Territory | Spain |
City | Valencia |
Period | 25/03/24 → 27/03/24 |
Keywords
- CKKS
- Homomorphic Encryption
- Hardware Accelerator
- FPGA
- Microsoft SEAL
Fingerprint
Dive into the research topics of 'Aloha-HE: A Low-Area Hardware Accelerator for Client-Side Operations in Homomorphic Encryption'. Together they form a unique fingerprint.Projects
- 1 Active
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EU - Confidential6G - Confidential Computing and Privacy-preserving Technologies for 6G
Rechberger, C. (Co-Investigator (CoI))
1/01/23 → 31/12/25
Project: Research project
Activities
- 1 Talk at conference or symposium
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Aloha-HE: A Low-Area Hardware Accelerator for Client-Side Operations in Homomorphic Encryption
Krieger, F. (Speaker)
27 Mar 2024Activity: Talk or presentation › Talk at conference or symposium › Science to science