| # |
| # Copyright (c) 2024, Arm Limited. All rights reserved. |
| # |
| # SPDX-License-Identifier: BSD-3-Clause |
| # |
| |
| # Hash algorithm for DICE Protection Environment |
| # SHA-256 (or stronger) is required. |
| DPE_HASH_ALG := sha256 |
| |
| ifeq (${DPE_HASH_ALG}, sha512) |
| DPE_ALG_ID := DPE_ALG_SHA512 |
| DPE_DIGEST_SIZE := 64U |
| else ifeq (${DPE_HASH_ALG}, sha384) |
| DPE_ALG_ID := DPE_ALG_SHA384 |
| DPE_DIGEST_SIZE := 48U |
| else |
| DPE_ALG_ID := DPE_ALG_SHA256 |
| DPE_DIGEST_SIZE := 32U |
| endif #DPE_HASH_ALG |
| |
| # Set definitions for DICE Protection Environment |
| $(eval $(call add_defines,\ |
| $(sort \ |
| DPE_ALG_ID \ |
| DPE_DIGEST_SIZE \ |
| ))) |
| |
| DPE_SOURCES += drivers/measured_boot/rss/dice_prot_env.c |