added HasEncryptionPayload function to check for possible HW encryption
diff --git a/image/image.go b/image/image.go
index d54eb82..4842cde 100644
--- a/image/image.go
+++ b/image/image.go
@@ -813,3 +813,27 @@
return b.Bytes(), nil
}
+
+// HasEncryptionPayload indicates whether an image's contains a HW encryption payload.
+func (img *Image) HasEncryptionPayload() bool {
+ enc := false
+ res, _ := img.FindAllUniqueTlv(IMAGE_TLV_SECRET_ID_LEGACY)
+ if res != nil {
+ nonce, _ := img.FindAllUniqueTlv(IMAGE_TLV_AES_NONCE_LEGACY)
+ if nonce != nil {
+ enc = true
+ }
+
+ }
+ if !enc {
+ res, _ = img.FindAllUniqueTlv(IMAGE_TLV_SECRET_ID)
+ if res != nil {
+ nonce, _ := img.FindAllUniqueTlv(IMAGE_TLV_AES_NONCE)
+ if nonce != nil {
+ enc = true
+ }
+
+ }
+ }
+ return enc
+}
