[mynewt-artifact] branch master updated: added HasEncryptionPayload function to check for possible HW encryption

[utzig]

This is an automated email from the ASF dual-hosted git repository.

utzig pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-artifact.git


The following commit(s) were added to refs/heads/master by this push:
     new 56555f5  added HasEncryptionPayload function to check for possible HW 
encryption
56555f5 is described below

commit 56555f5f45008ce9f277a4c51c3d5593734752d1
Author: Mark Blake <4048475+weekendsuperh...@users.noreply.github.com>
AuthorDate: Mon Aug 16 12:32:21 2021 -0700

    added HasEncryptionPayload function to check for possible HW encryption
---
 image/image.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

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 @@ func (img *Image) Bin() ([]byte, error) {
 
        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
+}