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Author SHA1 Message Date
Kevin Burke 34d0413e1b scrypt: update recommended parameters for 2017 
Previously we documented recommended parameters for scrypt from 2009,
which was eight years ago. Update those parameters and also provide
some guidance to users for configuring those settings in 2017. On my
late 2015 Macbook Pro, the scrypt benchmark with N=1<<15, r=8, p=1
completes in 91 milliseconds.

Add an Example with a salt.

Fixes golang/go#22082.

Change-Id: I23e3920db67583c9fce093768a32e67ab9c979f5
Reviewed-on: https://go-review.googlesource.com/67070
Reviewed-by: Adam Langley <agl@golang.org>
 2017-09-30 16:10:57 +00:00
Dmitry Chestnykh 97488752ad scrypt: 2x faster. 
Work on uint32 slices instead of bytes.
Replace usage of Salsa20/8 from salsa package with
the specialized version.

benchmark       old ns/op    new ns/op    delta
BenchmarkKey    266430525    126657130  -52.46%

R=agl
CC=golang-dev
https://golang.org/cl/7139050
 2013-01-17 11:42:30 -05:00
Dmitry Chestnykh 6ba10a7acb go.crypto/scrypt: add package 
R=golang-dev, agl, r
CC=golang-dev
https://golang.org/cl/6535043
 2012-09-18 16:59:45 -04:00