Hardware acceleration of a crypto function

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Hey guys,

 

I talked to a customer who does not think hardware can offer much in terms of acceleration of crypto functions specifically certificate signing using ECC (ECDSA).  He works on mobile phones with high end processors so his claim potentially credible in that space but got me curious.  What kinds of ECDSA sign times are you seeing in software implementations?  ATECC508A does this in less than 50ms, have you beaten this and on what processor?

Eustace Asanghanwa
Atmel Crypto Products