公开(公告)号：US20170300251A1

公开(公告)日：2017-10-19

申请号：US15132026

申请日：2016-04-18

Applicant: QUALCOMM Incorporated

Inventor： Anil Kota ,  Sei Seung Yoon ,  Bhadri Kubendran

IPC: G06F3/06 ,  G06F11/10 ,  G06F11/263

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/0679 ,  G06F11/108 ,  G06F11/2635 ,  G06F21/78 ,  G11C17/146

Abstract: A method includes: reading a plurality of words from a one-time program (OTP) memory of a processing chip, wherein each of the words includes secure data for the chip and bits corresponding to a check pattern; comparing the bits corresponding to the check pattern to a preprogrammed check pattern; detecting an error based on comparing the bits corresponding to the check pattern to the preprogrammed check pattern; and performing an action by the processing chip in response to detecting the error.

公开(公告)号：US20180075888A1

公开(公告)日：2018-03-15

申请号：US15262417

申请日：2016-09-12

Applicant: QUALCOMM Incorporated

Inventor： Vincent Pierre Le Roy ,  Bhadri Kubendran

IPC: G11C7/24 ,  G11C5/14 ,  G11C7/22 ,  G11C7/20 ,  G06F7/58

CPC classification number: G11C7/24 ,  G06F7/58 ,  G06F7/582 ,  G06F21/575 ,  G06F21/79 ,  G09C1/00 ,  G11C5/148 ,  G11C7/20 ,  G11C7/22 ,  H04L9/004 ,  H04L2209/08

Abstract: Techniques for preventing tampering with programmable read-only memory of an integrated circuit are provided. A method according to these techniques includes performing a randomized read of data stored in the programmable read-only memory based on an input from an entropy source, writing the data to one or more registers of the integrated circuit, and initializing one or more components of the integrated circuit using the data stored in the one or more registers.

公开(公告)号：US10318726B2

公开(公告)日：2019-06-11

申请号：US15132026

申请日：2016-04-18

Applicant: QUALCOMM Incorporated

Inventor： Anil Kota ,  Sei Seung Yoon ,  Bhadri Kubendran

IPC: G06F21/55 ,  G06F21/64 ,  G06F3/06 ,  G06F11/10 ,  G06F11/263 ,  G06F21/78 ,  G11C17/14

Abstract: A method includes: reading a plurality of words from a one-time program (OTP) memory of a processing chip, wherein each of the words includes secure data for the chip and bits corresponding to a check pattern; comparing the bits corresponding to the check pattern to a preprogrammed check pattern; detecting an error based on comparing the bits corresponding to the check pattern to the preprogrammed check pattern; and performing an action by the processing chip in response to detecting the error.

公开(公告)号：US10217498B2

公开(公告)日：2019-02-26

申请号：US15262417

申请日：2016-09-12

Applicant: QUALCOMM Incorporated

Inventor： Vincent Pierre Le Roy ,  Bhadri Kubendran

IPC: G06F21/00 ,  G11C7/24 ,  G06F7/58 ,  G11C5/14 ,  G11C7/20 ,  G11C7/22 ,  G06F21/79 ,  H04L9/00 ,  G09C1/00 ,  G06F21/57

Abstract: Techniques for preventing tampering with programmable read-only memory of an integrated circuit are provided. A method according to these techniques includes performing a randomized read of data stored in the programmable read-only memory based on an input from an entropy source, writing the data to one or more registers of the integrated circuit, and initializing one or more components of the integrated circuit using the data stored in the one or more registers.