Where is the example_secure_boot() example code for rtl8720dn / ambd_sdk?

Where is the example_secure_boot() example code for rtl8720dn / ambd_sdk ?
Something like AN0500-Realtek-Ameba-ZII-application-note for the rtl8720dn would be helpful.
Thank you.

btw: I also cant find example_trust_zone() in the sdk. I do have a realtek-online account. What do I ask for?

Hi @lamb
Assuming you are talking about the open source SDKs, then we regret to inform you that there is no secure features included in the open source SDKs.

Well I have an anchor account and have been waiting for an NDA I can review. Would that then put me in a position to get more data?
Thank You

Once youu have access to the NDA SDK, you will also gain access to more technical documents where security features are better explained