Use crypto/sha256 (#29386)

Go 1.21 improved the performance of `crypto/sha256`. It's now similar to
`minio/sha256-simd`, so we should just use the standard libs.

https://go.dev/doc/go1.21#crypto/sha256
https://go-review.googlesource.com/c/go/+/408795
https://github.com/multiformats/go-multihash/pull/173

modules/auth/password/hash/pbkdf2.go

@@ -4,12 +4,12 @@
 package hash
 
 import (
+	"crypto/sha256"
 	"encoding/hex"
 	"strings"
 
 	"code.gitea.io/gitea/modules/log"
 
-	"github.com/minio/sha256-simd"
 	"golang.org/x/crypto/pbkdf2"
 )
 

modules/avatar/hash.go

@@ -4,10 +4,9 @@
 package avatar
 
 import (
+	"crypto/sha256"
 	"encoding/hex"
 	"strconv"
-
-	"github.com/minio/sha256-simd"
 )
 
 // HashAvatar will generate a unique string, which ensures that when there's a

modules/avatar/identicon/identicon.go

@@ -7,11 +7,10 @@
 package identicon
 
 import (
+	"crypto/sha256"
 	"fmt"
 	"image"
 	"image/color"
-
-	"github.com/minio/sha256-simd"
 )
 
 const minImageSize = 16

modules/base/tool.go

@@ -5,6 +5,7 @@ package base
 
 import (
 	"crypto/sha1"
+	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
 	"errors"
@@ -22,7 +23,6 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 
 	"github.com/dustin/go-humanize"
-	"github.com/minio/sha256-simd"
 )
 
 // EncodeSha1 string to sha1 hex value.

modules/git/last_commit_cache.go

@@ -4,12 +4,11 @@
 package git
 
 import (
+	"crypto/sha256"
 	"fmt"
 
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
-
-	"github.com/minio/sha256-simd"
 )
 
 // Cache represents a caching interface

modules/lfs/content_store.go

@@ -4,6 +4,7 @@
 package lfs
 
 import (
+	"crypto/sha256"
 	"encoding/hex"
 	"errors"
 	"hash"
@@ -12,8 +13,6 @@ import (
 
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/storage"
-
-	"github.com/minio/sha256-simd"
 )
 
 var (

modules/lfs/pointer.go

@@ -4,6 +4,7 @@
 package lfs
 
 import (
+	"crypto/sha256"
 	"encoding/hex"
 	"errors"
 	"fmt"
@@ -12,8 +13,6 @@ import (
 	"regexp"
 	"strconv"
 	"strings"
-
-	"github.com/minio/sha256-simd"
 )
 
 const (

modules/secret/secret.go

@@ -7,13 +7,12 @@ import (
 	"crypto/aes"
 	"crypto/cipher"
 	"crypto/rand"
+	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
 	"errors"
 	"fmt"
 	"io"
-
-	"github.com/minio/sha256-simd"
 )
 
 // AesEncrypt encrypts text and given key with AES.

modules/util/keypair.go

@@ -7,10 +7,9 @@ import (
 	"crypto"
 	"crypto/rand"
 	"crypto/rsa"
+	"crypto/sha256"
 	"crypto/x509"
 	"encoding/pem"
-
-	"github.com/minio/sha256-simd"
 )
 
 // GenerateKeyPair generates a public and private keypair

modules/util/keypair_test.go

@@ -7,12 +7,12 @@ import (
 	"crypto"
 	"crypto/rand"
 	"crypto/rsa"
+	"crypto/sha256"
 	"crypto/x509"
 	"encoding/pem"
 	"regexp"
 	"testing"
 
-	"github.com/minio/sha256-simd"
 	"github.com/stretchr/testify/assert"
 )