ATSHA204 ATMEL [ATMEL Corporation], ATSHA204 Datasheet - Page 42
ATSHA204
Manufacturer Part Number
ATSHA204
Description
Atmel CryptoAuthentication
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATSHA204.pdf
(65 pages)
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If Zone is data and SlotConfig[KeyID].CheckOnly is one, the SHA-256 message body used to create the resulting new
TempKey consists of the following bytes:
In all other cases, the message use to create TempKey is as follows:
32 bytes
4 bytes
1 byte
2 bytes
25 bytes
32 bytes
32 bytes
1 byte
1 byte
2 bytes
1 byte
2 bytes
25 bytes
32 bytes
Data.slot[KeyID]
OtherData
SN[8]
SN[0:1]
Zeros
TempKey.value
Config[KeyID] or OTP[KeyID] or Data.slot[KeyID] or TransportKey[KeyID]
Opcode
Param1
Param2
SN[8]
SN[0:1]
Zeros
TempKey.value
Atmel ATSHA204 [DATASHEET]
8740D−CRYPTO−3/12
42
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