Ethan Miller 4955147291 math/big: add assembly implementation of arith for ppc64{le} ... The existing implementation used a pure go implementation, leading to slow cryptographic performance. Implemented mulWW, subVV, mulAddVWW, addMulVVW, and bitLen for ppc64{le}. Implemented divWW for ppc64le only, as the DIVDEU instruction is only available on Power8 or newer. benchcmp output: benchmark old ns/op new ns/op delta BenchmarkSignP384 28934360 10877330 -62.41% BenchmarkRSA2048Decrypt 41261033 5139930 -87.54% BenchmarkRSA2048Sign 45231300 7610985 -83.17% Benchmark3PrimeRSA2048Decrypt 20487300 2481408 -87.89% Fixes #16621 Change-Id: If8b68963bb49909bde832f2bda08a3791c4f5b7a Reviewed-on: https://go-review.googlesource.com/26951 Run-TryBot: Michael Munday <munday@ca.ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Michael Munday <munday@ca.ibm.com>		2016-08-29 21:03:21 +00:00
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testdata
ecdsa_test.go	math/big: add assembly implementation of arith for ppc64{le}	2016-08-29 21:03:21 +00:00
ecdsa.go	crypto/ecdsa: Update documentation for Sign	2016-06-29 18:44:36 +00:00