From d0a43af61688353de3dbda70d038aaf266cd4a61 Mon Sep 17 00:00:00 2001
From: Andreas Auernhammer <aead@mail.de>
Date: Wed, 17 Jan 2018 19:54:31 +0100
Subject: [PATCH] replace all "crypto/sha256" with
 "github.com/minio/sha256-simd" (#5391)

This change replaces all imports of "crypto/sha256" with
"github.com/minio/sha256-simd". The sha256-simd package
is faster on ARM64 (NEON instructions) and can take advantage
of AVX-512 in certain scenarios.

Fixes #5374
---
 cmd/gateway/azure/gateway-azure.go | 2 +-
 cmd/retry-storage_test.go          | 3 ++-
 cmd/update-main.go                 | 2 +-
 cmd/xl-v1-metadata.go              | 2 +-
 pkg/hash/reader.go                 | 3 ++-
 pkg/madmin/utils.go                | 3 ++-
 6 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/cmd/gateway/azure/gateway-azure.go b/cmd/gateway/azure/gateway-azure.go
index c135a5b46..4365bf1b1 100644
--- a/cmd/gateway/azure/gateway-azure.go
+++ b/cmd/gateway/azure/gateway-azure.go
@@ -19,7 +19,6 @@ package azure
 import (
 	"bytes"
 	"crypto/rand"
-	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
@@ -38,6 +37,7 @@ import (
 	"github.com/minio/minio/pkg/auth"
 	"github.com/minio/minio/pkg/errors"
 	"github.com/minio/minio/pkg/hash"
+	sha256 "github.com/minio/sha256-simd"
 
 	minio "github.com/minio/minio/cmd"
 )
diff --git a/cmd/retry-storage_test.go b/cmd/retry-storage_test.go
index 28d9af5c0..5fa1ead11 100644
--- a/cmd/retry-storage_test.go
+++ b/cmd/retry-storage_test.go
@@ -18,12 +18,13 @@ package cmd
 
 import (
 	"bytes"
-	"crypto/sha256"
 	"errors"
 	"os"
 	"reflect"
 	"testing"
 	"time"
+
+	sha256 "github.com/minio/sha256-simd"
 )
 
 // Tests retry storage.
diff --git a/cmd/update-main.go b/cmd/update-main.go
index 5adb2bba4..b40f3fea0 100644
--- a/cmd/update-main.go
+++ b/cmd/update-main.go
@@ -19,7 +19,6 @@ package cmd
 import (
 	"bufio"
 	"crypto"
-	_ "crypto/sha256" // Needed for sha256 hash verifier.
 	"encoding/hex"
 	"fmt"
 	"io/ioutil"
@@ -33,6 +32,7 @@ import (
 	"github.com/fatih/color"
 	"github.com/inconshreveable/go-update"
 	"github.com/minio/cli"
+	_ "github.com/minio/sha256-simd" // Needed for sha256 hash verifier.
 	"github.com/segmentio/go-prompt"
 )
 
diff --git a/cmd/xl-v1-metadata.go b/cmd/xl-v1-metadata.go
index 7a65cc737..c7d24da55 100644
--- a/cmd/xl-v1-metadata.go
+++ b/cmd/xl-v1-metadata.go
@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"crypto"
-	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
@@ -30,6 +29,7 @@ import (
 	"time"
 
 	"github.com/minio/minio/pkg/errors"
+	sha256 "github.com/minio/sha256-simd"
 	"golang.org/x/crypto/blake2b"
 )
 
diff --git a/pkg/hash/reader.go b/pkg/hash/reader.go
index 832ef64cb..31981135b 100644
--- a/pkg/hash/reader.go
+++ b/pkg/hash/reader.go
@@ -19,12 +19,13 @@ package hash
 import (
 	"bytes"
 	"crypto/md5"
-	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
 	"errors"
 	"hash"
 	"io"
+
+	sha256 "github.com/minio/sha256-simd"
 )
 
 var errNestedReader = errors.New("Nesting of Reader detected, not allowed")
diff --git a/pkg/madmin/utils.go b/pkg/madmin/utils.go
index 34aa80618..5e1163295 100644
--- a/pkg/madmin/utils.go
+++ b/pkg/madmin/utils.go
@@ -18,7 +18,6 @@ package madmin
 
 import (
 	"crypto/md5"
-	"crypto/sha256"
 	"encoding/xml"
 	"io"
 	"io/ioutil"
@@ -27,6 +26,8 @@ import (
 	"net/url"
 	"strings"
 
+	sha256 "github.com/minio/sha256-simd"
+
 	"github.com/minio/minio-go/pkg/s3utils"
 )