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-rw-r--r--include/fsl_sec.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/fsl_sec.h b/include/fsl_sec.h
index e0aed957794..f9e0d2e322e 100644
--- a/include/fsl_sec.h
+++ b/include/fsl_sec.h
@@ -28,7 +28,16 @@
#error Neither CONFIG_SYS_FSL_SEC_LE nor CONFIG_SYS_FSL_SEC_BE is defined
#endif
+#define BLOB_OVERHEAD (32 + 16)
#define BLOB_SIZE(x) ((x) + 32 + 16) /* Blob buffer size */
+#define AES256_KEY_SZ 32
+
+#define NONCE_SIZE 6
+#define ICV_SIZE 6
+#define CCM_OVERHEAD (NONCE_SIZE + ICV_SIZE)
+#define TAG_SIZE 20
+#define MAX_BLOB_SIZE (AES256_KEY_SZ + CCM_OVERHEAD +\
+ BLOB_OVERHEAD + TAG_SIZE)
/* Security Engine Block (MS = Most Sig., LS = Least Sig.) */
#if CONFIG_SYS_FSL_SEC_COMPAT >= 4