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AM263PX-RESTRICTED-SECURITY: ECDH

Sravya Kalluri
Prodigy 155 points
Part Number: AM263PX-RESTRICTED-SECURITY
Other Parts Discussed in Thread: AM263P4

Hi Team,

I have reviewed the AM263PX Security Hardware Addendum, which mentions ECDH (Elliptic Curve Diffie-Hellman Key Exchange) as a supported feature. However, one team member informed me that this feature is not available on the AM263P4, while another confirmed it is possible. Could you please clarify if ECDH key exchange is supported on the AM263P4?



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  • 0
    TI__Guru* 87251 points

    Hi Sravya,

    Sorry for the confusion here. 

    The Diffie-Helman key exchange (ECDH) is supported. 

    But the device doesn't support a public-private key pair generation from the PKA crypto accelerator.

    So the public-private keygen should occur externally or must be a software implemented feature (i.e. generating a key using trng and generate public key from it) and then fed to ECDH algorithm.

    Thanks and Regards,

    Nikhil Dasan