Texas Instruments bq35100 - Authenticatedata(): 0 X40; Authenticatechecksum(): 0 X54

www.ti.com AuthenticateData(): 0x40…0x53
33
SLUUBH1C–August 2016–Revised March 2018
Submit Documentation Feedback
Copyright © 2016–2018, Texas Instruments Incorporated
SHA-1 Authentication
9. Compare host HMAC2 with device HMAC3, and if it matches, both host and device have the same key
KD and the device is authenticated.
10.4 AuthenticateData(): 0x40…0x53
UNSEALED Access—This data block has a dual function: It is used for the authentication challenge and
response and is part of the 32-byte data block when accessing data flash.
SEALED Access—This data block has a dual function: It is used for authentication challenge and
response, and is part of the 32-byte data block when accessing Manufacturer Data.
10.5 AuthenticateChecksum(): 0x54
UNSEALED Access—This byte holds the authentication checksum when writing the authentication
challenge to the device, and is part of the 32-byte data block when accessing data flash.
SEALED Access—This byte holds the authentication checksum when writing the authentication challenge
to the device, and is part of the 32-byte data block when accessing Manufacturer Data.