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fix(esp_rom): correct ESP32-P4 secure boot signature block layout

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nilesh.kale
2026-06-19 11:51:28 +05:30
committed by Nilesh Kale
parent aaaadb64be
commit a3ce319a87
1 changed files with 21 additions and 1 deletions
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22
components/esp_rom/esp32p4/include/esp32p4/rom/secure_boot.h
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -88,6 +88,25 @@ struct ets_secure_boot_sig_block {
#elif CONFIG_SECURE_SIGNED_APPS_ECDSA_V2_SCHEME
#if CONFIG_SECURE_BOOT_ECDSA_KEY_LEN_384_BITS
struct __attribute((packed)) ets_secure_boot_sig_block {
uint8_t magic_byte;
uint8_t version;
uint8_t sha_version;
uint8_t _reserved2;
uint8_t image_digest[48];
struct {
struct {
uint8_t curve_id; /* ETS_ECDSA_CURVE_P192 / ETS_ECDSA_CURVE_P256 / ETS_ECDSA_CURVE_P384 */
uint8_t point[96]; /* X followed by Y (both little-endian), plus zero bytes if P192 */
} key;
uint8_t signature[96]; /* r followed by s (both little-endian) */
uint8_t padding[951];
} ecdsa;
uint32_t block_crc; /* note: crc covers all bytes in the structure before it, regardless of version field */
uint8_t _padding[16];
};
#else
struct __attribute((packed)) ets_secure_boot_sig_block {
uint8_t magic_byte;
uint8_t version;
@@ -105,6 +124,7 @@ struct __attribute((packed)) ets_secure_boot_sig_block {
uint32_t block_crc; /* note: crc covers all bytes in the structure before it, regardless of version field */
uint8_t _padding[16];
};
#endif /* CONFIG_SECURE_BOOT_ECDSA_KEY_LEN_384_BITS */
#endif
ESP_STATIC_ASSERT(sizeof(ets_secure_boot_sig_block_t) == 1216, "invalid sig block size");