公开(公告)号：US20190114115A1

公开(公告)日：2019-04-18

申请号：US15782292

申请日：2017-10-12

Applicant: NXP B.V.

Inventor： Thomas Wille ,  Bruce Murray

IPC: G06F3/06 ,  G06F12/02 ,  G06F21/12 ,  G06K19/07 ,  H04L9/08 ,  G11C16/06

CPC classification number: G06F3/0679 ,  G06F12/0246 ,  G06F21/123 ,  G06F2221/2103 ,  G06F2221/2129 ,  G06K19/0723 ,  G11C16/06 ,  H04L9/0866 ,  H04L9/0877 ,  H04L9/3278

Abstract: In high security devices, like smart cards, the on-board software may be embedded in ROM (read only memory). But, based on flexibility arguments, non-volatile flash memory based software storage can be more preferred. This invention describes a method to recover from a situation of data loss on flash devices by combining the on-device available secure boot-loading with embedded physical unclonable functions (PUF), where the PUF provides the cryptographic key for starting the data recovery procedure.

公开(公告)号：US10437524B2

公开(公告)日：2019-10-08

申请号：US15782292

申请日：2017-10-12

Applicant: NXP B.V.

Inventor： Thomas Wille ,  Bruce Murray

IPC: G06F3/06 ,  G06F12/02 ,  G11C16/06 ,  G06K19/07 ,  H04L9/08 ,  G06F21/12 ,  H04L9/32

Abstract: In high security devices, like smart cards, the on-board software may be embedded in ROM (read only memory). But, based on flexibility arguments, non-volatile flash memory based software storage can be more preferred. This invention describes a method to recover from a situation of data loss on flash devices by combining the on-device available secure boot-loading with embedded physical unclonable functions (PUF), where the PUF provides the cryptographic key for starting the data recovery procedure.