Switch back to sha256 from the std library

The std library now also supports the sha assembly instructions on
ARM64. Thus, sha256-simd no longer provides a performance benefit.

internal/backend/test/tests.go

@@ -3,6 +3,7 @@ package test
 import (
 	"bytes"
 	"context"
+	"crypto/sha256"
 	"fmt"
 	"io"
 	"math/rand"
@@ -12,7 +13,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/minio/sha256-simd"
 	"github.com/restic/restic/internal/errors"
 	"github.com/restic/restic/internal/restic"
 

internal/fuse/snapshots_dirstruct.go

@@ -6,6 +6,7 @@ package fuse
 import (
 	"bytes"
 	"context"
+	"crypto/sha256"
 	"fmt"
 	"path"
 	"sort"
@@ -15,8 +16,6 @@ import (
 
 	"github.com/restic/restic/internal/debug"
 	"github.com/restic/restic/internal/restic"
-
-	"github.com/minio/sha256-simd"
 )
 
 type MetaDirData struct {

internal/repository/check.go

@@ -4,12 +4,12 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"crypto/sha256"
 	"fmt"
 	"io"
 	"sort"
 
 	"github.com/klauspost/compress/zstd"
-	"github.com/minio/sha256-simd"
 	"github.com/restic/restic/internal/backend"
 	"github.com/restic/restic/internal/debug"
 	"github.com/restic/restic/internal/errors"

internal/repository/packer_manager.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"bufio"
 	"context"
+	"crypto/sha256"
 	"io"
 	"os"
 	"runtime"
@@ -17,8 +18,6 @@ import (
 	"github.com/restic/restic/internal/debug"
 	"github.com/restic/restic/internal/fs"
 	"github.com/restic/restic/internal/repository/pack"
-
-	"github.com/minio/sha256-simd"
 )
 
 // packer holds a pack.packer together with a hash writer.

internal/restic/id.go

@@ -2,11 +2,10 @@ package restic
 
 import (
 	"crypto/rand"
+	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
 	"io"
-
-	"github.com/minio/sha256-simd"
 )
 
 // Hash returns the ID for data.