公开(公告)号：US20210203496A1

公开(公告)日：2021-07-01

申请号：US17136775

申请日：2020-12-29

申请人： Giuseppe Cariello ,  Gaspare Giglio ,  Patrick Miesen ,  Jonathan Scott Parry

发明人： Giuseppe Cariello ,  Gaspare Giglio ,  Patrick Miesen ,  Jonathan Scott Parry

IPC分类号： H04L9/08 ,  G06F12/14

摘要： Disclosed in some examples are methods, systems, memory devices, and machine-readable mediums for providing a secure method of modifying, erasing, or updating security keys for protected regions of a memory device by using a special firmware object (a key-modification firmware) loaded to the memory device that contains instructions to reprogram, modify, and/or erase the keys. To ensure that this key-modification firmware does not become a security risk, the key-modification firmware object may be protected from subsequent usage in a variety of ways.