Filippo Valsorda
e0829623af
const KeySize = 32
const NonceSize = 12
func HChaCha20(key, nonce []byte) ([]byte, error)
type Cipher struct {}
func NewUnauthenticatedCipher(key, nonce []byte) (*Cipher, error)
func (s *Cipher) XORKeyStream(dst, src []byte)
Small performance hit in chacha20poly1305, probably due to the loss
of the Advance API, which we might consider adding later. No new
allocations, thanks to the mid-stack inliner.
name old time/op new time/op delta
Chacha20Poly1305/Open-64-8 1.60µs ± 0% 1.68µs ± 1% +4.94% (p=0.000 n=9+10)
Chacha20Poly1305/Seal-64-8 1.56µs ± 0% 1.64µs ± 1% +5.21% (p=0.000 n=8+10)
Chacha20Poly1305/Open-64-X-8 2.10µs ± 1% 2.22µs ± 1% +5.81% (p=0.000 n=10+10)
Chacha20Poly1305/Seal-64-X-8 2.07µs ± 1% 2.17µs ± 0% +4.88% (p=0.000 n=10+10)
Chacha20Poly1305/Open-1350-8 15.4µs ± 0% 15.7µs ± 1% +1.65% (p=0.000 n=10+10)
Chacha20Poly1305/Seal-1350-8 15.6µs ± 2% 15.9µs ± 1% +1.58% (p=0.028 n=10+9)
Chacha20Poly1305/Open-1350-X-8 16.0µs ± 1% 16.3µs ± 2% +2.00% (p=0.000 n=10+10)
Chacha20Poly1305/Seal-1350-X-8 15.9µs ± 0% 16.3µs ± 1% +1.91% (p=0.000 n=10+8)
Chacha20Poly1305/Open-8192-8 85.6µs ± 0% 86.6µs ± 1% +1.21% (p=0.000 n=10+10)
Chacha20Poly1305/Seal-8192-8 85.7µs ± 0% 86.3µs ± 0% +0.68% (p=0.001 n=9+9)
Chacha20Poly1305/Open-8192-X-8 86.4µs ± 1% 87.1µs ± 1% +0.76% (p=0.035 n=10+9)
Chacha20Poly1305/Seal-8192-X-8 86.0µs ± 0% 87.0µs ± 1% +1.14% (p=0.000 n=9+9)
Updates golang/go#24485
Change-Id: I2ec2ef487a03f013049915d9063751c75a78408b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/185980
Reviewed-by: Michael Munday <mike.munday@ibm.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.