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Merge branch 'feat/enable_pseudo_rounds_function_in_aes' into 'master'

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Enable pseudo rounds function in AES and XTS-AES peripherals

Closes IDF-11305

See merge request espressif/esp-idf!33970
This commit is contained in:
Mahavir Jain
2024-12-04 13:48:09 +08:00
parent 0c011032aa fb1105f449
commit 30dbc69428
39 changed files with 975 additions and 38 deletions
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components/bootloader_support/src/esp32c5/flash_encryption_secure_features.c
+9 -1
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@@ -4,15 +4,17 @@
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <strings.h>
#include "esp_flash_encrypt.h"
#include "esp_secure_boot.h"
#include "esp_efuse.h"
#include "esp_efuse_table.h"
#include "esp_log.h"
#include "sdkconfig.h"
#include "hal/key_mgr_ll.h"
#include "hal/mspi_timing_tuning_ll.h"
#include "soc/soc_caps.h"
#include "sdkconfig.h"
static __attribute__((unused)) const char *TAG = "flash_encrypt";
@@ -42,6 +44,12 @@ esp_err_t esp_flash_encryption_enable_secure_features(void)
esp_efuse_write_field_bit(ESP_EFUSE_DIS_DIRECT_BOOT);
#if defined(CONFIG_SECURE_FLASH_ENCRYPTION_MODE_RELEASE) && defined(SOC_FLASH_ENCRYPTION_XTS_AES_SUPPORT_PSEUDO_ROUND)
ESP_LOGI(TAG, "Enable XTS-AES pseudo rounds function...");
uint8_t xts_pseudo_level = CONFIG_SECURE_FLASH_PSEUDO_ROUND_FUNC_STRENGTH;
esp_efuse_write_field_blob(ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL, &xts_pseudo_level, ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL[0]->bit_count);
#endif
#if defined(CONFIG_SECURE_BOOT_V2_ENABLED) && !defined(CONFIG_SECURE_BOOT_V2_ALLOW_EFUSE_RD_DIS)
// This bit is set when enabling Secure Boot V2, but we can't enable it until this later point in the first boot
// otherwise the Flash Encryption key cannot be read protected
components/bootloader_support/src/esp32c61/flash_encryption_secure_features.c
+6
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@@ -40,6 +40,12 @@ esp_err_t esp_flash_encryption_enable_secure_features(void)
esp_efuse_write_field_bit(ESP_EFUSE_DIS_DIRECT_BOOT);
#if defined(CONFIG_SECURE_FLASH_ENCRYPTION_MODE_RELEASE) && defined(SOC_FLASH_ENCRYPTION_XTS_AES_SUPPORT_PSEUDO_ROUND)
ESP_LOGI(TAG, "Enable XTS-AES pseudo rounds function...");
uint8_t xts_pseudo_level = CONFIG_SECURE_FLASH_PSEUDO_ROUND_FUNC_STRENGTH;
esp_efuse_write_field_blob(ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL, &xts_pseudo_level, ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL[0]->bit_count);
#endif
#if defined(CONFIG_SECURE_BOOT_V2_ENABLED) && !defined(CONFIG_SECURE_BOOT_V2_ALLOW_EFUSE_RD_DIS)
// This bit is set when enabling Secure Boot V2, but we can't enable it until this later point in the first boot
// otherwise the Flash Encryption key cannot be read protected
components/bootloader_support/src/flash_encrypt.c
+16
View File
@@ -12,6 +12,8 @@
#include "esp_flash_encrypt.h"
#include "esp_secure_boot.h"
#include "hal/efuse_hal.h"
#include "hal/spi_flash_encrypt_hal.h"
#include "soc/soc_caps.h"
#if CONFIG_IDF_TARGET_ESP32
#define CRYPT_CNT ESP_EFUSE_FLASH_CRYPT_CNT
@@ -207,6 +209,11 @@ void esp_flash_encryption_set_release_mode(void)
#endif // CONFIG_SOC_FLASH_ENCRYPTION_XTS_AES_128_DERIVED
#endif // !CONFIG_IDF_TARGET_ESP32
#ifdef SOC_FLASH_ENCRYPTION_XTS_AES_SUPPORT_PSEUDO_ROUND
uint8_t xts_pseudo_level = ESP_XTS_AES_PSEUDO_ROUNDS_LOW;
esp_efuse_write_field_blob(ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL, &xts_pseudo_level, ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL[0]->bit_count);
#endif
#ifdef CONFIG_IDF_TARGET_ESP32
esp_efuse_write_field_bit(ESP_EFUSE_WR_DIS_DIS_CACHE);
#else
@@ -468,6 +475,15 @@ bool esp_flash_encryption_cfg_verify_release_mode(void)
}
result &= secure;
#if SOC_FLASH_ENCRYPTION_XTS_AES_SUPPORT_PSEUDO_ROUND
uint8_t xts_pseudo_level = 0;
esp_efuse_read_field_blob(ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL, &xts_pseudo_level, ESP_EFUSE_XTS_DPA_PSEUDO_LEVEL[0]->bit_count);
if (!xts_pseudo_level) {
result &= false;
ESP_LOGW(TAG, "Not enabled XTS-AES pseudo rounds function (set XTS_DPA_PSEUDO_LEVEL->1 or more)");
}
#endif
return result;
}
#endif // not CONFIG_IDF_TARGET_ESP32