公开(公告)号：US20150347216A1

公开(公告)日：2015-12-03

申请号：US14714310

申请日：2015-05-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Moon-Seok KIM ,  Sang-Kyung YOO ,  Seok RYU ,  Bong Soo LEE ,  Rae LEE ,  Junki KANG ,  Sanghan LEE

IPC: G06F11/07

CPC classification number: G06F11/079 ,  G06F11/0745 ,  G06F11/0751 ,  G11C11/41 ,  G11C29/08 ,  G11C29/44 ,  G11C29/52 ,  G11C29/56008

Abstract: An apparatus and method that prevent a bit error in a static random access memory (SRAM)-based Physically Unclonable function (PUF). The method for preventing an error in a PUF includes selecting any value, from a physically unclonable function based on a volatile memory device, as an input value, and checking a response corresponding to the selected input value, classifying cells having a plurality of bits corresponding to the response depending on frequency of error occurrence, calculating a number of white cells, in which an error does not occur, from classified results, and determining whether the number of white cells is greater than a preset threshold number of white cells, and selecting an input value of the physically unclonable function based on results of determination.

Abstract translation: 一种防止基于静态随机存取存储器（SRAM）的物理不可克隆功能（PUF）中的位错误的装置和方法。 用于防止PUF中的错误的方法包括从基于易失性存储器件的物理不可克隆功能中选择任何值作为输入值，并且检查与所选择的输入值相对应的响应，对具有多个比特的小区进行分类 根据错误发生的频率到响应，从分类结果计算出不发生错误的白细胞的数目，以及确定白细胞数是否大于预设的白细胞数阈值，并选择 基于确定结果的物理不可克隆功能的输入值。