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8 bit modulo polynomial multiplier circuit

A polynomial multiplication and modular polynomial technology is applied in the field of improvement of 8-bit modular polynomial multiplier circuits, which can solve the problems of slow operation speed, difficult implementation and high production cost, and achieve the effects of low cost, fast circuit response and easy implementation.

Inactive Publication Date: 2007-08-22
HISENSE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing 8-bit modulo polynomial multiplier circuit has slow operation speed, high production cost, and is not easy to implement

Method used

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  • 8 bit modulo polynomial multiplier circuit
  • 8 bit modulo polynomial multiplier circuit

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Embodiment 1

[0029] Example 1. An 8-bit modular polynomial multiplier circuit, as shown in Figure 1 and Figure 2. It includes the first register (1) with CLK, RST, CR-EN and CONT[7:0] as input and CR[7:0] as output, with Q-EN, D0[7:0], D1[7:0] and CR[7:0] are modulo polynomial multipliers (33) at the input. Modular polynomial multiplier (33) takes CR[7:0] as coefficient, and its output is Q[7:0].

[0030] The modular polynomial multiplier 33 includes a first exclusive OR gate 2 connected to the first register 1, a first selector 3 connected to the first exclusive OR gate 2, a second exclusive OR gate 4 connected to the first selector 3, The second selector 5 connected with the second exclusive OR gate 4, the third exclusive OR gate 6 connected with the second selector 5, the third selector 7 connected with the third exclusive OR gate 6, and the third selector The fourth exclusive OR gate 8 connected with 7, the fourth selector 9 connected with the fourth exclusive OR gate 8, the fifth e...

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Abstract

The 8-bit modulo polynomial multiplier circuit includes register with inputs of CLK, RST, CR-EN, and CONT[7:0] and output of CR[7:0]; and modulo polynomial multiplier with inputs of Q-EN, D0[7:0], and CR[7:0]; coefficient CR[7:0] and output of Q[7:0]. The modulo polynomial multiplier includes 14 XOR gates, 13 selectors, 1 multiplexer, 2 AND-gates and one register. The present invention has the advantages of fast response speed, fast operation speed, high efficiency and low cost, and may be used widely in digital signal processing, enciphering and deciphering algorithm, etc.

Description

technical field [0001] The invention belongs to the technical field of digital signal processing, and more specifically relates to the improvement of an 8-bit modular polynomial multiplier circuit. Background technique [0002] In the fields of digital signal processing, encryption and decryption algorithms, etc., signals are often processed by modular polynomial multiplication, and 8-bit modular polynomial multiplication is the most common. The so-called modular polynomial multiplication is to multiply two polynomials and then find the modulus. First determine the coefficient CR of the modular polynomial, and then input the coefficients D0 and D1 of two 8-bit polynomials. The operation realized by the modular polynomial multiplication is Q=D0*D1 mod CR , where Q is the result of the modular polynomial multiplication. [0003] The existing 8-bit modulo polynomial multiplier circuit has slow operation speed, high production cost, and is not easy to implement. Contents of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/72
Inventor 陈永强曲英杰丁勇刘志恒战嘉瑾张世友
Owner HISENSE