Eric Lagergren
74c2ba9521
HKDF is commonly used to read keys that are the the same length (or smaller) than the size of the hash digest, which means the loop inside Read only runs once. In that case, calling Reset is unnecesssary overhead. name old time/op new time/op delta 16ByteMD5Single-8 1.39µs ± 1% 1.22µs ± 0% -11.95% (p=0.000 n=10+9) 20ByteSHA1Single-8 826ns ± 0% 746ns ± 0% -9.70% (p=0.000 n=9+10) 32ByteSHA256Single-8 838ns ± 1% 744ns ± 0% -11.29% (p=0.000 n=10+10) 64ByteSHA512Single-8 5.12µs ± 0% 4.57µs ± 0% -10.78% (p=0.000 n=8+10) 8ByteMD5Stream-8 137ns ± 0% 138ns ± 0% +0.27% (p=0.009 n=9+6) 16ByteMD5Stream-8 264ns ± 0% 265ns ± 0% +0.29% (p=0.000 n=10+10) 8ByteSHA1Stream-8 64.1ns ± 0% 64.4ns ± 0% +0.60% (p=0.000 n=9+9) 20ByteSHA1Stream-8 145ns ± 0% 146ns ± 1% +0.69% (p=0.000 n=9+10) 8ByteSHA256Stream-8 42.9ns ± 1% 43.1ns ± 0% +0.48% (p=0.005 n=10+10) 32ByteSHA256Stream-8 151ns ± 0% 152ns ± 0% +0.35% (p=0.006 n=10+8) 8ByteSHA512Stream-8 139ns ± 0% 139ns ± 0% +0.08% (p=0.035 n=9+10) 64ByteSHA512Stream-8 1.07µs ± 0% 1.07µs ± 0% +0.33% (p=0.000 n=9+10) name old speed new speed delta 16ByteMD5Single-8 11.6MB/s ± 0% 13.1MB/s ± 0% +13.50% (p=0.000 n=9+9) 20ByteSHA1Single-8 24.2MB/s ± 0% 26.8MB/s ± 0% +10.75% (p=0.000 n=9+10) 32ByteSHA256Single-8 38.2MB/s ± 1% 43.0MB/s ± 0% +12.72% (p=0.000 n=10+10) 64ByteSHA512Single-8 12.5MB/s ± 0% 14.0MB/s ± 0% +12.06% (p=0.000 n=8+10) 8ByteMD5Stream-8 58.2MB/s ± 0% 58.1MB/s ± 0% -0.27% (p=0.004 n=9+9) 16ByteMD5Stream-8 60.6MB/s ± 0% 60.5MB/s ± 0% -0.27% (p=0.000 n=9+10) 8ByteSHA1Stream-8 125MB/s ± 0% 124MB/s ± 0% -0.59% (p=0.000 n=9+9) 20ByteSHA1Stream-8 138MB/s ± 0% 137MB/s ± 1% -0.69% (p=0.000 n=9+10) 8ByteSHA256Stream-8 186MB/s ± 1% 185MB/s ± 0% -0.47% (p=0.005 n=10+10) 32ByteSHA256Stream-8 211MB/s ± 0% 211MB/s ± 0% -0.37% (p=0.003 n=10+8) 8ByteSHA512Stream-8 57.4MB/s ± 1% 57.4MB/s ± 0% ~ (p=0.137 n=10+10) 64ByteSHA512Stream-8 59.9MB/s ± 0% 59.7MB/s ± 0% -0.33% (p=0.000 n=9+10) name old alloc/op new alloc/op delta 16ByteMD5Single-8 1.17kB ± 0% 0.98kB ± 0% -16.42% (p=0.000 n=10+10) 20ByteSHA1Single-8 1.25kB ± 0% 1.06kB ± 0% -15.37% (p=0.000 n=10+10) 32ByteSHA256Single-8 1.36kB ± 0% 1.14kB ± 0% -16.46% (p=0.000 n=10+10) 64ByteSHA512Single-8 2.26kB ± 0% 1.84kB ± 0% -18.43% (p=0.000 n=10+10) 8ByteMD5Stream-8 2.00B ± 0% 2.00B ± 0% ~ (all equal) 16ByteMD5Stream-8 5.00B ± 0% 5.00B ± 0% ~ (all equal) 8ByteSHA1Stream-8 2.00B ± 0% 2.00B ± 0% ~ (all equal) 20ByteSHA1Stream-8 5.00B ± 0% 5.00B ± 0% ~ (all equal) 8ByteSHA256Stream-8 1.00B ± 0% 1.00B ± 0% ~ (all equal) 32ByteSHA256Stream-8 6.00B ± 0% 6.00B ± 0% ~ (all equal) 8ByteSHA512Stream-8 1.00B ± 0% 1.00B ± 0% ~ (all equal) 64ByteSHA512Stream-8 9.00B ± 0% 9.00B ± 0% ~ (all equal) name old allocs/op new allocs/op delta 16ByteMD5Single-8 16.0 ± 0% 14.0 ± 0% -12.50% (p=0.000 n=10+10) 20ByteSHA1Single-8 16.0 ± 0% 14.0 ± 0% -12.50% (p=0.000 n=10+10) 32ByteSHA256Single-8 16.0 ± 0% 14.0 ± 0% -12.50% (p=0.000 n=10+10) 64ByteSHA512Single-8 16.0 ± 0% 14.0 ± 0% -12.50% (p=0.000 n=10+10) 8ByteMD5Stream-8 0.00 0.00 ~ (all equal) 16ByteMD5Stream-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) 8ByteSHA1Stream-8 0.00 0.00 ~ (all equal) 20ByteSHA1Stream-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) 8ByteSHA256Stream-8 0.00 0.00 ~ (all equal) 32ByteSHA256Stream-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) 8ByteSHA512Stream-8 0.00 0.00 ~ (all equal) 64ByteSHA512Stream-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Change-Id: I08e5deb7045ce9aa63428e0ac7ae6140226414b4 Reviewed-on: https://go-review.googlesource.com/c/crypto/+/423414 Reviewed-by: Roland Shoemaker <roland@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Roland Shoemaker <roland@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Go Cryptography
This repository holds supplementary Go cryptography libraries.
Download/Install
The easiest way to install is to run go get -u golang.org/x/crypto/.... You
can also manually git clone the repository to $GOPATH/src/golang.org/x/crypto.
Report Issues / Send Patches
This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.
The main issue tracker for the crypto repository is located at https://github.com/golang/go/issues. Prefix your issue with "x/crypto:" in the subject line, so it is easy to find.
Note that contributions to the cryptography package receive additional scrutiny due to their sensitive nature. Patches may take longer than normal to receive feedback.