AR# 71225

Design Advisory for Zynq-7000: FSBL authenticates the boot image in external DDR

Description

The FSBL for Zynq-7000 devices performs the entirety of the asymmetric authentication operation on a given partition in external DDR memory.

This approach is subject to tampering if an adversary has direct access to the external DDR.

Solution

Xilinx recommend that customers carefully consider this threat and determine if appropriate system level protections are required to secure the external DDR memory.

AR# 71225
Date 08/03/2018
Status Active
Type Design Advisory
Devices
Tools