improve performance

- use latest pkg/sftp that contains my latest performance patch
- replace default crypto with my branch that use minio sha256-simd
instead of Golang SHA256 implementation, this improve performance on
some hardware

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/nathanaelle/password v1.0.0
 	github.com/pelletier/go-toml v1.6.0 // indirect
 	github.com/pires/go-proxyproto v0.0.0-20200213100827-833e5d06d8f0
-	github.com/pkg/sftp v1.11.1-0.20200301233614-8f7762387880
+	github.com/pkg/sftp v1.11.1-0.20200310224833-18dc4db7a456
 	github.com/prometheus/client_golang v1.4.1
 	github.com/prometheus/procfs v0.0.10 // indirect
 	github.com/rs/xid v1.2.1
@@ -42,4 +42,7 @@ require (
 	gopkg.in/yaml.v2 v2.2.8 // indirect
 )
 
-replace github.com/eikenb/pipeat v0.0.0-20190316224601-fb1f3a9aa29f => github.com/drakkan/pipeat v0.0.0-20200123131427-11c048cfc0ec
+replace (
+	github.com/eikenb/pipeat v0.0.0-20190316224601-fb1f3a9aa29f => github.com/drakkan/pipeat v0.0.0-20200123131427-11c048cfc0ec
+	golang.org/x/crypto => github.com/drakkan/crypto v0.0.0-20200313182750-40fd29667886
+)

go.sum

@@ -59,6 +59,8 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
+github.com/drakkan/crypto v0.0.0-20200313182750-40fd29667886 h1:4dCWgFNP6pawO0bdrNSe9FXCEy7HuvQaApcvXHrPgeo=
+github.com/drakkan/crypto v0.0.0-20200313182750-40fd29667886/go.mod h1:v3bhWOXGYda7H5d2s5t9XA6th3fxW3s0MQxU1R96G/w=
 github.com/drakkan/pipeat v0.0.0-20200123131427-11c048cfc0ec h1:DXfzg1NXoesnFzdCyyi2uU3o1o0XiWTN2ZcpWDE7MCk=
 github.com/drakkan/pipeat v0.0.0-20200123131427-11c048cfc0ec/go.mod h1:wNYvIpR5rIhoezOYcpxcXz4HbIEOu7A45EqlQCA+h+w=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -158,6 +160,8 @@ github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0j
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/miekg/dns v1.1.27 h1:aEH/kqUzUxGJ/UHcEKdJY+ugH6WEzsEBBSPa8zuy1aM=
 github.com/miekg/dns v1.1.27/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
+github.com/minio/sha256-simd v0.1.1 h1:5QHSlgo3nt5yKOJrC7W8w7X+NFl8cMPZm96iu8kKUJU=
+github.com/minio/sha256-simd v0.1.1/go.mod h1:B5e1o+1/KgNmWrSQK08Y6Z1Vb5pwIktudl0J58iy0KM=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
@@ -178,8 +182,8 @@ github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/sftp v1.11.1-0.20200301233614-8f7762387880 h1:vtK/Y33cEyUTDKqfZcHx+Hdy8u1CmCnRO2zGimUXopQ=
-github.com/pkg/sftp v1.11.1-0.20200301233614-8f7762387880/go.mod h1:PIrgHN0+qgDmYTNiwryjoEqmXo9tv8aMwQ//Yg1xwIs=
+github.com/pkg/sftp v1.11.1-0.20200310224833-18dc4db7a456 h1:bSZarZ6xMwo5F3xAMXaZj4w+Og3YlbqEVOZvvgZa3FQ=
+github.com/pkg/sftp v1.11.1-0.20200310224833-18dc4db7a456/go.mod h1:PIrgHN0+qgDmYTNiwryjoEqmXo9tv8aMwQ//Yg1xwIs=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=