RFR(L): 8069539: RSA acceleration (original) (raw)

Viswanathan, Sandhya sandhya.viswanathan at intel.com
Wed Mar 11 21:36:42 UTC 2015

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Hi All,

We would like to contribute the Crypto RSA acceleration optimization from Intel. The contribution is towards the JEP 8046943 and Bug ID: 8069539.

Please review this patch: JEP: https://bugs.openjdk.java.net/browse/JDK-8046943 Bug-id: https://bugs.openjdk.java.net/browse/JDK-8069539 webrev: https://bugs.openjdk.java.net/secure/attachment/26024/webrev.zip

The optimization is achieved through intrinsics for BigInteger squareToLen and mulAdd methods. We see ~50% improvement for SPECjvm2008 crypto.rsa with this patch.

Nils Eliasson has kindly offered to sponsor this patch.

Best Regards, Sandhya

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