topic Re: SCP03 default keys in Secure Authentication

SCP03 default keys

deang — Fri, 04 Aug 2023 18:56:13 GMT

The default SCP03 keys listed in: https://www.nxp.com/docs/en/application-note/AN12436.pdf are incorrect. The following is a code snippet from the PlugTrust library (ex_sss_tp_scp03_keys.h):

// Variant ==> OEF ID
// SE050A1 ==> A204
// SE050A2 ==> A205
// SE050B1 ==> A202
// SE050B2 ==> A203
// SE050C1 ==> A200
// SE050C2 ==> A201
// Development Board ==> A1F4 (DEVKIT)

//SE051C ==>0xA8FA
//SE051A ==>0xA920
//SE050E ==>0xA921
//SE051W(Fira) ==>0xA739
//A5000 gen ==>0xA736
//SE050F2 ==>0xA92A

Are these mappings correct?

Also when will the AN12436 app note be updated?

Dean

Re: SCP03 default keys

Kan_Li — Mon, 07 Aug 2023 02:01:29 GMT

Hi @deang ,

Yes, there is some OEF ID info issue in table 6, please refer to table 2 instead, alternatively you may refer to the mapping info you found in the PlugTrust library (ex_sss_tp_scp03_keys.h). The update for AN12436 is in progress, I will let you know when it is available.

Have a great day,
Kan

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Re: SCP03 default keys

deang — Mon, 07 Aug 2023 14:44:52 GMT

Thanks Kan.

I double checked and I've got all of the variants and correct keys set in my code. For ease of refence, here's the list of OEFIDs and variants.

A201 == SE050C2
A200 == SE050C1
A921 == SE050E2
A92A == SE050F2
A204 == SE050A1
A205 == SE050A2
A43B == SE050D2
A202 == SE050B1
A203 == SE050B2
A77E == SE050F2

Dean