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K82 : mbedTLS and ECC P-521

Question asked by Eugene Hiihtaja on Sep 4, 2018
Latest reply on Sep 7, 2018 by Mark Butcher

Hello !

 

I can see in latest SDK for K82, in mbedTLS 2.6.0 support for ECC P-521 curve cryptography is disabled.

 

E.g MBEDTLS_ECP_DP_SECP521R1_ENABLED   definition is disabled.

 

I think this is becouse LTC supports 512 bit modulo as maximum.

 

But even I enable this flag and disable LTC usage by undefine

 

//#define MBEDTLS_ECP_MUL_COMB_ALT
//#define MBEDTLS_ECP_ADD_ALT

 

I still not able to pass any tests for P-521.

 

Does K82 port of mbedTLS include ECC P-521 software implementation ?

 

Regards,

Eugene

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