Patent · US Active

Non-volatile memory with replay protected memory block having dual key

US11088845B2 · kind B2 · utility

5Cited by

1References

20Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Rotem Sela · Sunnyvale, US
Miki Sapir · Nes Ziona, IL

Key dates

Filing date	Feb 4, 2019
Grant date	Aug 10, 2021
Priority date	—
Expiry date	Feb 19, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/34
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An apparatus includes a Replay Protected Memory Block (RPMB) formed in a plurality of non-volatile memory cells. Control circuitry is configured to authenticate access to the RPMB with a plurality of keys. Authentication of write access to the RPMB is through a write key and authentication of read access to the RPMB is through a read key.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.