LPC55s69 PUF functionality

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LPC55s69 PUF functionality

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satsok_n
Contributor III

Hi,

I am kind of new to the PUF consept. I am using the drivers>PUF example with LPC55S69.I have 3 questions. First, If I use the same activation code after the enroll to start the PUF means that I would have same SRAM cells values. Secondly, how do I get the same intrinsic key to use after I restart the device?. What is the actual meaning of keycode?

Thanks

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Alice_Yang
NXP TechSupport
NXP TechSupport

Hello satsok_n,

First, If I use the same activation code after the enroll to start the PUF means that I would have same SRAM cells values.

->> Yes.

Secondly, how do I get the same intrinsic key to use after I restart the device?. What is the actual meaning of keycode?

->> About these question, recommend you have a look at the AN12324

https://www.nxp.com.cn/docs/en/application-note/AN12324.pdf 

 

 

BR

Alice

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satsok_n
Contributor III

Hi

Is there any way to have direct access and read fingerprint? Furthermore, do I have knowledge of Internal functions or am I able to change them?  

satsok_n_0-1642771090553.png

 

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Alice_Yang
NXP TechSupport
NXP TechSupport

Hello satsok_n,

NO.

 

BR

Alice

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