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    • 1. 发明公开
    • BIT GENERATION DEVICE AND BIT GENERATION METHOD
    • BIT-ERZEUGUNGSVORRICHTUNG UND BIT-ERZEUGUNGSVERFAHREN
    • EP2665225A4
    • 2017-04-26
    • EP11855851
    • 2011-01-13
    • MITSUBISHI ELECTRIC CORP
    • SHIMIZU KOICHISUZUKI DAISUKEKASUYA TOMOMI
    • H04L9/10
    • H03K3/02G09C1/00H03K5/1252H03K19/003H03K19/00361H04L9/3278
    • A bit generation apparatus 100 is provided with a glitch generation circuit 120 that generates glitch signals y1 to yM which include a plurality of pulses, and T-FF bit generation circuits 131(1) to 131(M) which input the glitch signals y1 to yM, and based on either rising edges or falling edges of the plurality of pulses included in the glitch signals, generate a bit value of either 0 or 1. Each of the T-FF bit generation circuits 131(1) to 131(M) generates a respective bit value b1 to bM based on either the parity of the number of rising edges or the parity of the number of falling edges of the plurality of pulses. As a result of employment of the T-FF bit generation circuits 131(1) to 131(M), circuits that are conventionally required but not essential for the glitch PUF become unnecessary. This serves to prevent expansion in circuit scale and increase in processing time of bit generation for the bit generation circuit 100.
    • 位生成装置100具备:生成包含多个脉冲的毛刺信号y1〜yM的毛刺生成电路120,以及将毛刺信号y1〜yM输入到生成电路130的T-FF位生成电路131(1)〜131(M) yM,并且基于在毛刺信号中包括的多个脉冲的上升沿或下降沿,产生0或1的比特值。每个T-FF比特产生电路131(1)至131(M) 基于多个脉冲的上升沿的数量的奇偶性或下降沿的数量的奇偶性来生成相应的比特值b1至bM。 作为T-FF比特生成电路131(1)至131(M)的使用结果,传统上需要但不是毛刺PUF所必需的电路变得不必要。 这用于防止比特生成电路100的电路规模的扩大和比特生成的处理时间的增加。