Restructure codebase move crypto, checksum to top-level, move `split` into donut, move crypto/keys into api/auth

pkg/crypto/md5/md5_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	. "github.com/minio/check"
-	"github.com/minio/minio/pkg/utils/crypto/md5"
+	"github.com/minio/minio/pkg/crypto/md5"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/donut/bucket.go

@@ -31,9 +31,9 @@ import (
 	"encoding/hex"
 	"encoding/json"
 
+	"github.com/minio/minio/pkg/crypto/sha512"
+	"github.com/minio/minio/pkg/donut/split"
 	"github.com/minio/minio/pkg/iodine"
-	"github.com/minio/minio/pkg/utils/crypto/sha512"
-	"github.com/minio/minio/pkg/utils/split"
 )
 
 const (

pkg/donut/split/split_test.go

@@ -25,7 +25,7 @@ import (
 	"testing"
 
 	. "github.com/minio/check"
-	"github.com/minio/minio/pkg/utils/split"
+	"github.com/minio/minio/pkg/donut/split"
 )
 
 type MySuite struct{}

pkg/server/api/auth/keys/keys_test.go

@@ -20,7 +20,7 @@ import (
 	"testing"
 
 	. "github.com/minio/check"
-	"github.com/minio/minio/pkg/utils/crypto/keys"
+	"github.com/minio/minio/pkg/server/api/auth/keys"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/server/api/generic-handlers.go

@@ -26,7 +26,7 @@ import (
 	"time"
 
 	"github.com/minio/minio/pkg/quick"
-	"github.com/minio/minio/pkg/utils/crypto/keys"
+	"github.com/minio/minio/pkg/server/api/auth/keys"
 )
 
 type contentTypeHandler struct {