feat: SSE-KMS use uuid instead of read all data to md5. (#17958)

internal/etag/etag.go

@@ -119,6 +119,7 @@ import (
 
 	"github.com/minio/minio/internal/fips"
 	"github.com/minio/minio/internal/hash/sha256"
+	xhttp "github.com/minio/minio/internal/http"
 	"github.com/minio/sio"
 )
 
@@ -263,6 +264,12 @@ func FromContentMD5(h http.Header) (ETag, error) {
 	return ETag(b), nil
 }
 
+// ContentMD5Requested - for http.request.header is not request Content-Md5
+func ContentMD5Requested(h http.Header) bool {
+	_, ok := h[xhttp.ContentMD5]
+	return ok
+}
+
 // Multipart computes an S3 multipart ETag given a list of
 // S3 singlepart ETags. It returns nil if the list of
 // ETags is empty.