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Modular squaring circuit, modular squaring method, and modular squaring program

机译：模块化平方电路，模块化平方方法和模块化平方程序

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摘要

A fast computation method for squaring operations in Montgomery multiplication, and an arithmetic circuit for realizing the computation method are provided. A modular squaring unit compares variable i with variable j. If i and j are equal, the modular squaring unit computes T=T+a_i×a_i×2^jk. If i and j are not equal, the modular squaring unit computes temporary variable tmp=a_i×a_j×2^jk, shifts temporary variable tmp by one bit to the left, and computes T=T+tmp.

机译：提供了一种用于蒙哥马利乘法中的平方运算的快速计算方法，以及用于实现该计算方法的算术电路。模块化平方单元将变量 i 与变量 j 进行比较。如果 i 和 j 相等，则模平方单元将计算 T = T + a _{i < / Sub> ×a _{i ×2 ^{jk 。如果 i 和 j 不相等，则模平方单元将计算临时变量 tmp = a _{i ×a _{j ×2 ^{< I> jk ，将临时变量 tmp 左移一位，并计算 T = T + tmp 。}}}}}} 展开▼

著录项

公开/公告号EP1306748A3

专利类型

公开/公告日2005-10-12

原文格式PDF

申请/专利权人 MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD.;
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申请/专利号EP20020023692

发明设计人 NAKANO TOSHIHISA;MATSUZAKI NATSUME;ONO TAKATOSHITRUSTY JIMOKUJI 2-303;
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申请日2002-10-22

分类号G06F7/72;

国家 EP

入库时间 2022-08-21 22:09:38

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