alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-14 22:16:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

esp32h2: add secure boot feature support

Browse Source 
Closes IDF-6281
This commit is contained in:
Mahavir Jain
2023-03-06 16:49:40 +05:30
parent d61f974a3d
commit d4ccdd48f6
6 changed files with 66 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
components/bootloader_support/src/esp32h2/bootloader_sha.c
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -24,7 +24,11 @@ bootloader_sha256_handle_t bootloader_sha256_start()
void bootloader_sha256_data(bootloader_sha256_handle_t handle, const void *data, size_t data_len)
{
assert(handle != NULL);
assert(data_len % 4 == 0);
/* H2 secure boot key field consists of 1 byte of curve identifier and 64 bytes of ECDSA public key.
* While verifying the signature block, we need to calculate the SHA of this key field which is of 65 bytes.
* ets_sha_update handles it cleanly so we can safely remove the check:
* assert(data_len % 4) == 0
*/
ets_sha_update(&ctx, data, data_len, false);
}