Help configuring ATECC508 Slot Configuration

[umanayana]

Hello,

I am trying to figure out how to setup the slot configuration (SlotConfig Byte 20 to 51) for the following

1. Generate a public key using (genkey command) from a private key stored in a slot? As far as I see Bit 0 and bit 1 needs to be set.

2. I want to perform ECDH operation on the chip using a given private key slot. But I do not want the master secret returned in unencrypted. The documentation says to set Bit 3 to 1. Which will store the master secret in slot N|1. What is slot N|1? How do I read from 'slot N|1`?

I also need to know how to run the GenKey command so that the private key is stored in the TempKey register? When I am performing ECDH I need to generate a new key pair using GenKey but I need to store the private key on the ATECC508. I want to use the TemKey register to do this. How can I achieve this?

[bryan-hunt]

Storing a private key in tempkey for use in ECDH is an ATECC608A feature only.

This is a product support question rather than a software/library bug. For product support you must talk to your assigned FAE or submit a request through the mySupport portal on microchip.com. Instructions for using the mySupport portal

[umanayana]

Thanks.

…

On Fri., Sep. 7, 2018, 12:56 p.m. Bryan Hunt, ***@***.***> wrote: Storing a private key in tempkey for use in ECDH is an ATECC608A feature only. This is a product support question rather than a software/library bug. For product support you must talk to your assigned FAE or submit a request through the mySupport portal on microchip.com <http://www.microchip.com/support/hottopics.aspx>. Instructions for using the mySupport portal <https://microchip.secure.force.com/microchipknowledge/articles/en_US/FAQ/How-to-submit-a-case> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#32 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AgjcnZHgFKirVe65iaPiYO5EsEinEGvTks5uYqVBgaJpZM4WfJyF> .