ATECC608A datasheet(3/81 Pages) MICROCHIP

3 / 81 page

5.1.2.2.

Info - Device State.....................................................................................29

5.1.3.

Lock Command...........................................................................................................30

5.1.3.1.

SlotLock.....................................................................................................30

5.1.4.

Nonce Command........................................................................................................ 31

5.1.4.1.

Nonce - Random....................................................................................... 31

5.1.4.2.

Nonce - Fixed............................................................................................ 32

5.1.5.

Random Command...................................................................................................... 32

5.1.6.

Read Command...........................................................................................................32

5.1.6.1.

Clear Text Read.........................................................................................33

5.1.6.2.

Encrypted Read.........................................................................................33

5.1.7.

SelfTest Command..................................................................................................34

5.1.8.

SHA Command.............................................................................................................34

5.1.8.1.

SHA - SHA256 Digest............................................................................... 35

5.1.8.2.

SHA - HMAC Digest.................................................................................. 35

5.1.8.3.

SHA - Context Switching........................................................................... 36

5.1.9.

UpdateExtra Command........................................................................................... 37

5.1.10. Write Command........................................................................................................ 37

5.1.10.1.

Data Zone - Clear Text Write.....................................................................37

5.1.10.2.

Data Zone - Encrypted Write.....................................................................38

5.2.

Asymmetric Cryptography Commands.......................................................................................38

5.2.1.

ECDH Command...........................................................................................................39

5.2.1.1.

ECDH - Stored Key................................................................................... 39

5.2.1.2.

ECDH - TempKey Source..........................................................................40

5.2.2.

GenKey Command...................................................................................................... 41

5.2.2.1.

Private Key - Stored in TempKey.............................................................. 41

5.2.2.2.

Public Key Generation...............................................................................41

5.2.2.3.

Public Key Digest Generation................................................................... 42

5.2.3.

Sign Command...........................................................................................................42

5.2.3.1.

Sign - External Message........................................................................... 42

5.2.4.

Verify Command...................................................................................................... 43

5.2.4.1.

Verify - External Public Key Mode............................................................. 43

5.2.4.2.

Verify - Stored Public Key Mode................................................................44

5.3.

Symmetric Cryptography Commands........................................................................................ 46

5.3.1.

AES Command.............................................................................................................46

5.3.1.1.

AES-ECB Encrypt..................................................................................... 46

5.3.1.2.

AES-GFM.................................................................................................. 47

5.3.2.

CheckMac Command..................................................................................................47

5.3.3.

DeriveKey Command................................................................................................48

5.3.4.

GenDig Command...................................................................................................... 50

5.3.4.1.

GenDig - Config.........................................................................................51

5.3.4.2.

GenDig - OTP............................................................................................51

5.3.4.3.

GenDig - Data........................................................................................... 52

5.3.4.4.

GenDig - Shared Nonce............................................................................ 53

5.3.4.5.

GenDig - Counter...................................................................................... 54

5.3.4.6.

GenDig - Key Config................................................................................. 54

5.3.5.

KDF Command.............................................................................................................55

5.3.6.

MAC Command.............................................................................................................55

ATECC608A-TNGLoRaWAN

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