公开(公告)号：US09276583B1

公开(公告)日：2016-03-01

申请号：US14748591

申请日：2015-06-24

Applicant: Intel Corporation

Inventor： Sudhir K Satpathy ,  Sanu K Mathew

IPC: H03K19/00 ,  H03K19/177 ,  G06F11/07

CPC classification number: H03K19/17768 ,  G06F11/0745

Abstract: Embodiments of an invention for soft dark bit masking are disclosed. In one embodiment, an apparatus includes a basic physically unclonable function (PUF) cell, a load, and a masking circuit. The load is selectively connectable to the basic PUF cell to determine whether the basic PUF cell is unstable. The masking circuit is to mask the output of the basic PUF cell if the basic PUF cell is determined to be unstable. Embodiments of the invention also include mechanisms to reinforce the stability of stable cells, while further destabilizing unstable cells.

Abstract translation: 公开了用于软暗位掩蔽的本发明的实施例。 在一个实施例中，一种装置包括基本的物理不可克隆功能（PUF）单元，负载和屏蔽电路。 负载可选择性地连接到基本PUF单元，以确定基本PUF单元是否不稳定。 如果基本PUF单元被确定为不稳定，则屏蔽电路用于屏蔽基本PUF单元的输出。 本发明的实施方案还包括增强稳定细胞的稳定性的机制，同时进一步使稳定的细胞不稳定。

公开(公告)号：US10284368B2

公开(公告)日：2019-05-07

申请号：US15399568

申请日：2017-01-05

Applicant: Intel Corporation

Inventor： Jiangtao Li ,  Anand Rajan ,  Roel Maes ,  Sanu K Mathew ,  Ram Krishnamurthy ,  Ernie Brickell

IPC: H04L29/06 ,  H04L9/08 ,  G09C1/00

Abstract: Some implementations disclosed herein provide techniques and arrangements for provisioning keys to integrated circuits/processor. In one embodiments, a key provisioner/tester apparatus may include a memory device to receive a unique hardware key generated by a first logic of a processor. The key provisioner/tester apparatus may further include a cipher device to permanently store an encrypted first key in nonvolatile memory of the processor, detect whether the stored encrypted first key is valid, and to isolate at least one of the first logic and the nonvolatile memory of the processor from all sources that are exterior to the processor in response to detecting that the stored encrypted first key is valid.

公开(公告)号：US20170126405A1

公开(公告)日：2017-05-04

申请号：US15399568

申请日：2017-01-05

Applicant: Intel Corporation

Inventor： Jiangtao Li ,  Anand Rajan ,  Roel Maes ,  Sanu K Mathew ,  Ram Krishnamurthy ,  Ernie Brickell

IPC: H04L9/08

CPC classification number: H04L9/0891 ,  G09C1/00 ,  H04L9/0822 ,  H04L9/0861 ,  H04L9/0866 ,  H04L9/0894 ,  H04L2209/12

Abstract: Some implementations disclosed herein provide techniques and arrangements for provisioning keys to integrated circuits/processor. In one embodiments, a key provisioner/tester apparatus may include a memory device to receive a unique hardware key generated by a first logic of a processor. The key provisioner/tester apparatus may further include a cipher device to permanently store an encrypted first key in nonvolatile memory of the processor, detect whether the stored encrypted first key is valid, and to isolate at least one of the first logic and the nonvolatile memory of the processor from all sources that are exterior to the processor in response to detecting that the stored encrypted first key is valid.