commit c3b69edd2f84a121325a466748469c799d409e18
author Andrzej Kurek <andrzej.kurek@arm.com> Thu Jul 16 11:33:34 2020 -0400
committer Andrzej Kurek <andrzej.kurek@arm.com> Thu Jul 16 11:33:34 2020 -0400
tree 3dd63285f02f8d1c04cea1d25ba11b36b78c041e
parent a798e5d5cc1113fe16eb4a9a7ae3c7b2d4beeced

Increase hamming distance by changing UECC_SUCCESS from 0 to FFAAAA

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>

include/tinycrypt/ecc.h

diff --git a/include/tinycrypt/ecc.h b/include/tinycrypt/ecc.h
index 57aa508..4c20729 100644
--- a/include/tinycrypt/ecc.h
+++ b/include/tinycrypt/ecc.h
@@ -85,7 +85,7 @@
 /* Return values for functions, chosen with large Hamming distances between
  * them (especially to SUCESS) to mitigate the impact of fault injection
  * attacks flipping a low number of bits. */
-#define UECC_SUCCESS            0
+#define UECC_SUCCESS            0x00FFAAAA
 #define UECC_FAILURE            0x75555555
 #define UECC_FAULT_DETECTED     0x7aaaaaaa