Invention Grant
- Patent Title: Method to generate pattern data over garbage data when encryption parameters are changed
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Application No.: US15704866Application Date: 2017-09-14
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Publication No.: US10372627B2Publication Date: 2019-08-06
- Inventor: William Jared Walker , Cory Lappi , Darin Edward Gerhart , Daniel Robert Lipps
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Vierra Magen Marcus LLP
- Main IPC: G06F12/14
- IPC: G06F12/14 ; H04L29/06 ; G06F21/62 ; G06F21/00 ; H04L9/08 ; G09C1/00 ; G06F21/60 ; G06F21/80

Abstract:
A memory device including at least one memory location for storing information representing data written using a first encryption/decryption method, and a read channel using a second encryption/decryption method for reading and decrypting information as written is disclosed. The memory device also includes an apparatus that prevents the reading of the at least one memory location using the second encryption/decryption method, in response to an indication that the at least one memory location was written using the first encryption/decryption method. In another embodiment, a reading of a predefined or custom code is returned in response to an indication of another encryption/decryption method.
Public/Granted literature
- US20180018287A1 METHOD TO GENERATE PATTERN DATA OVER GARBAGE DATA WHEN ENCRYPTION PARAMETERS ARE CHANGED Public/Granted day:2018-01-18
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