eFuse read/write and protection

markwj
Posts: 90
Joined: Tue Mar 08, 2016 5:03 am

eFuse read/write and protection

Postby markwj » Thu Aug 03, 2017 4:58 am

I can't find any public API for reading/writing eFuses. Is this planned, or available anywhere?

I have a requirement for storing data in a secure manner. I know I can use flash encryption + secure boot, but that is not really compatible with the open source nature of what I am doing (I want the users to be able to change the code and flash themselves). I understand, and can accept, that an attacker with physical access could then upload his own code to bypass the protection.

If I use the efuse protection bits, and stored an encryption key in say BLK3, would that still be readable from a program running on the ESP32?

WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: eFuse read/write and protection

Postby WiFive » Thu Aug 03, 2017 6:20 am


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