Comment 7 for bug 1602655

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bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2016-07-14 09:08 EDT-------
Hi,

that's right !
A workaround would be to configure the IBMCA engine into openssl (openssl.cnf).
However, as the Polyakov code directly make use of the CPACF instructions we will end up with about
50 % performance degradation compared to the 'longer' way through the libica API for small payloads.

For the asymmetric case, when no CEX5 cards are available, we will still have a factor ~4. You remember the 'bn_mult_add_words' improvements, right ?