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ATAES132a MAC Generation for Decryption
  I know this is a late reply but I don't check the forum very often now, so you may well have solved this by now.   Anyway... there is a spreadsheet detail MAC...
Monday, 24 September 2018 - 14:30
Waking up the ATECC508A chip
  That's what I thought - thanks.  
Wednesday, 4 July 2018 - 05:53
Waking up the ATECC508A chip
  Well done. Can I just ask - did you need to lock the chip to get your code to work?  
Monday, 2 July 2018 - 16:34
Waking up the ATECC508A chip
  A Parse Error is 0x03, 0x0F is an Execution Error.   The Verify command can return an execution error for various reasons. They are all listed in section 9.20 of the...
Monday, 2 July 2018 - 11:48
Waking up the ATECC508A chip
From section 6.1.1 of the datasheet, specific to the I2C interface:   Wake: if SDA is held low for a period of greater than tWLO, the device will exit low power mode and...
Friday, 15 June 2018 - 04:14
AES132 Crunch Command use?
  I can only think of two cases where this command is useful.   1) A host contains an ATAES132A . Before it does any crypto communications with the remote device, it...
Thursday, 10 May 2018 - 23:08
AES132 using basic Encrypt/Decrypt command for external data
  Q1 The chip does not need to be locked to use these commands.   Q2. Return code 0x20 indicates a nonce error. Have you loaded a valid nonce? Key config E9 50 00 01...
Thursday, 10 May 2018 - 22:48
ATAES132A ECB Decrypt?
  I know this is an old thread, but did you ever find out how to do ECB decryption with the Legacy command?   Thanks.
Tuesday, 1 May 2018 - 13:22
AES132 in Legacy command mode(ECB)
  Sorry... I can't find anywhere in the datasheet the describes how to do AES-ECB decrypt with the Legacy command. Searching on Google shows other people asking this question...
Tuesday, 1 May 2018 - 12:06
AES132 in Legacy command mode(ECB)
  0x19 is the correct command packet length: Length(1) Opcode(1) Mode(1) Param1(2) Param2(2) Data(16) CRC(2) This is 25 bytes total, which equals 0x19 in hex.   You do...
Thursday, 26 April 2018 - 22:37
W7500 ATAES132 Implementation
You must enable the Legacy command for the device by setting ChipConfig.LegacyE = 1 in the configuration memory.   Also, the key must be configured to allow its use with the...
Wednesday, 25 April 2018 - 13:15
Is AES132 suitable for enormous read/write application?
You don't have to reseed the RNG with every Nonce command. Bit 1 of the mode byte controls this behavior. As the RNG itself is NIST certified as cryptographically secure,...
Wednesday, 25 April 2018 - 13:10

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