+#define OTX2_SEC_AH_HDR_LEN 12
+#define OTX2_SEC_AES_GCM_IV_LEN 8
+#define OTX2_SEC_AES_GCM_MAC_LEN 16
+#define OTX2_SEC_AES_CBC_IV_LEN 16
+#define OTX2_SEC_SHA1_HMAC_LEN 12
+#define OTX2_SEC_SHA2_HMAC_LEN 16
+
+#define OTX2_SEC_AES_GCM_ROUNDUP_BYTE_LEN 4
+#define OTX2_SEC_AES_CBC_ROUNDUP_BYTE_LEN 16
+