A loop structure optimization targeting high-level synthesis of fast number theoretic transform

Kazushi Kawamura, Masao Yanagisawa, Nozomu Togawa

    研究成果: Conference contribution

    3 引用 (Scopus)

    抜粋

    Multiplication with a large number of digits is heavily used when processing data encrypted by a fully homomorphic encryption, which is a bottleneck in computation time. An algorithm utilizing fast number theoretic transform (FNTT) is known as a high-speed multiplication algorithm and the further speeding up is expected by implementing the FNTT process on an FPGA. A high-level synthesis tool enables efficient hardware implementation even for FNTT with a large number of points. In this paper, we propose a methodology for optimizing the loop structure included in a software description of FNTT so that the performance of the synthesized FNTT processor can be maximized. The loop structure optimization is considered in terms of loop flattening and trip count reduction. We implement a 65,536-point FNTT processor with the loop structure optimization on an FPGA, and demonstrate that it can be executed 6.9 times faster than the execution on a CPU.

    元の言語English
    ホスト出版物のタイトル2018 19th International Symposium on Quality Electronic Design, ISQED 2018
    出版者IEEE Computer Society
    ページ106-111
    ページ数6
    2018-March
    ISBN(電子版)9781538612149
    DOI
    出版物ステータスPublished - 2018 5 9
    イベント19th International Symposium on Quality Electronic Design, ISQED 2018 - Santa Clara, United States
    継続期間: 2018 3 132018 3 14

    Other

    Other19th International Symposium on Quality Electronic Design, ISQED 2018
    United States
    Santa Clara
    期間18/3/1318/3/14

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering
    • Safety, Risk, Reliability and Quality

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  • これを引用

    Kawamura, K., Yanagisawa, M., & Togawa, N. (2018). A loop structure optimization targeting high-level synthesis of fast number theoretic transform. : 2018 19th International Symposium on Quality Electronic Design, ISQED 2018 (巻 2018-March, pp. 106-111). IEEE Computer Society. https://doi.org/10.1109/ISQED.2018.8357273