公开(公告)号：US12298918B2

公开(公告)日：2025-05-13

申请号：US18065372

申请日：2022-12-13

Applicant: Microchip Technology Incorporated

Inventor： Brian Oostenbrink ,  Ariel Deneb Edward Sibley ,  Darshana Patel

IPC: G06F12/14 ,  G06F12/0831

Abstract: An apparatus may comprise an off-chip data storage device and a semiconductor device package including processing circuitry and an on-chip memory device, the off-chip data storage device including master data and portions of the computer-readable instructions. The processing circuitry may retrieve a master data that includes a digital signature that may be used to verify the master data and a hash table that may include hash information for others of the portions. The processing circuitry may also verify the master instructions responsive to the digital signature, retrieve a portion, calculate a hash value of the retrieved portion, and determine whether the calculated hash value correlates to hash information of the hash table.

公开(公告)号：US20230185731A1

公开(公告)日：2023-06-15

申请号：US18065372

申请日：2022-12-13

Applicant: Microchip Technology Incorporated

Inventor： Brian Oostenbrink ,  Ariel Deneb Edward Sibley ,  Darshana Patel

IPC: G06F12/14 ,  G06F12/0831

CPC classification number: G06F12/1408 ,  G06F12/1458 ,  G06F12/0835

Abstract: An apparatus may comprise an off-chip data storage device and a semiconductor device package including processing circuitry and an on-chip memory device, the off-chip data storage device including master data and portions of the computer-readable instructions. The processing circuitry may retrieve a master data that includes a digital signature that may be used to verify the master data and a hash table that may include hash information for others of the portions. The processing circuitry may also verify the master instructions responsive to the digital signature, retrieve a portion, calculate a hash value of the retrieved portion, and determine whether the calculated hash value correlates to hash information of the hash table.