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Saber算法的多项式乘法FPGA实现研究
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作者 范建南 高献伟 薛文瀚 《北京电子科技学院学报》 2022年第1期20-31,共12页
在NIST后量子密码标准征集过程中,Saber算法凭借带宽低、灵活性高等特点,成为了较有竞争力的第三轮候选算法。作为Saber算法的核心部件,多项式乘法的硬件高效实现,能对Saber算法的实现起到加速作用。本文针对Saber算法,介绍分析了三种... 在NIST后量子密码标准征集过程中,Saber算法凭借带宽低、灵活性高等特点,成为了较有竞争力的第三轮候选算法。作为Saber算法的核心部件,多项式乘法的硬件高效实现,能对Saber算法的实现起到加速作用。本文针对Saber算法,介绍分析了三种多项式乘法算法的原理,结合Karatsuba算法及经典schoolbook算法,提出了五种基于Toom-Cook算法的多项式乘法算法改进方案,利用简单的加减法运算代替复杂的乘法运算,核心部分采用循环迭代结构进行优化设计。最后在国产FPGA器件Titan系列PGT180H-7FFBG676上进行综合,给出了五种改进方案实现Saber算法256×256多项式乘法的性能分析。研究发现,1轮Toom-Cook-4 way算法结合5轮Karatsuba算法及schoolbook算法2×2全乘的融合算法,使用的硬件逻辑资源相对较少,提高了乘法运算的速度。 展开更多
关键词 多项式乘法 toom-cook SABER 国产FPGA
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Large-Integer Multiplication Based on Homogeneous Polynomials
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作者 Boris S. Verkhovsky 《International Journal of Communications, Network and System Sciences》 2012年第8期437-445,共9页
Several algorithms based on homogeneous polynomials for multiplication of large integers are described in the paper. The homogeneity of polynomials provides several simplifications: reduction of system of equations an... Several algorithms based on homogeneous polynomials for multiplication of large integers are described in the paper. The homogeneity of polynomials provides several simplifications: reduction of system of equations and elimination of necessity to evaluate polynomials in points with larger coordinates. It is demonstrated that a two-stage implementation of the proposed and Toom-Cook algorithms asymptotically require twice as many standard multiplications than their direct implementation. A multistage implementation of these algorithms is also less efficient than their direct implementation. Although the proposed algorithms as well as the corresponding Toom-Cook algorithms require numerous algebraic additions, the Generalized Horner rule for evaluation of homogeneous polynomials, provided in the paper, decrease this number twice. 展开更多
关键词 Homogeneous POLYNOMIALS toom-cook Algorithm Multidigit INTEGERS Multi-Stage MULTIPLICATION Generalized Horner Rule Large-Integer MULTIPLICATION
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Corporate Intranet Security: Packet-Level Protocols for Preventing Leakage of Sensitive Information and Assuring Authorized Network Traffic
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作者 Boris S. Verkhovsky Roberto D. Rubino 《International Journal of Communications, Network and System Sciences》 2012年第5期245-252,共8页
Securing large corporate communication networks has become an increasingly difficult task. Sensitive information routinely leaves the company network boundaries and falls into the hands of unauthorized users. New tech... Securing large corporate communication networks has become an increasingly difficult task. Sensitive information routinely leaves the company network boundaries and falls into the hands of unauthorized users. New techniques are required in order to classify packets based on user identity in addition to the traditional source and destination host addresses. This paper introduces Gaussian cryptographic techniques and protocols to assist network administrators in the complex task of identifying the originators of data packets on a network and more easily policing their behavior. The paper provides numerical examples that illustrate certain basic ideas. 展开更多
关键词 CORPORATE Security Authorized Traffic Data LEAKAGE CRYPTOGRAPHIC TOKEN Authentication TRUSTED Authorities toom-cook Algorithm
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实对称双线性函数与多精度整数的快速乘法 被引量:2
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作者 王小非 洪帆 +1 位作者 汤学明 崔国华 《计算机科学》 CSCD 北大核心 2007年第6期92-97,共6页
多精度整数乘法运算的效率对公钥密码系统中的模乘、模幂的运算效率起着决定性的作用。Toom-Cook算法是一类应用广泛的多精度整数的快速乘法算法,目前主要的研究方法是插值理论。本文利用实对称双线性函数和二次型的方法研究多精度整数... 多精度整数乘法运算的效率对公钥密码系统中的模乘、模幂的运算效率起着决定性的作用。Toom-Cook算法是一类应用广泛的多精度整数的快速乘法算法,目前主要的研究方法是插值理论。本文利用实对称双线性函数和二次型的方法研究多精度整数的乘法和平方的快速计算,给出了Toom-Cook算法参数的所有代数表现形式和搜索快速算法的基本方法,提出了一些在实际应用中与目前已知结果相同或优于目前已知结果的快速乘法和平方算法。研究结果表明,利用实对称双线性函数和二次型表示Toom-Cook算法,更有利于判断算法的优劣程度和得到最优算法。 展开更多
关键词 实对称双线性函数 二次型 多精度整数乘法 toom-cook算法
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