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feat(esp_key_mgr): Support Digital Signature key deployments using Key Manager

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This commit is contained in:
harshal.patil
2025-06-10 16:57:20 +05:30
parent 265b0d7579
commit 33d8c05d95
9 changed files with 103 additions and 18 deletions
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10
components/hal/esp32c5/include/hal/ds_ll.h
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -78,6 +78,14 @@ static inline ds_key_check_t ds_ll_key_error_source(void)
}
}
/**
* @brief Set the DS key source.
*/
static inline void ds_ll_set_key_source(ds_key_source_t key_source)
{
REG_WRITE(DS_KEY_SOURCE_REG, key_source);
}
/**
* @brief Write the initialization vector to the corresponding register field.
*/

21
components/hal/esp32c5/include/hal/key_mgr_ll.h
View File

@@ -189,6 +189,14 @@ static inline void key_mgr_ll_set_key_usage(const esp_key_mgr_key_type_t key_typ
}
break;
case ESP_KEY_MGR_DS_KEY:
if (key_usage == ESP_KEY_MGR_USE_EFUSE_KEY) {
REG_SET_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_DS);
} else {
REG_CLR_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_DS);
}
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return;
@@ -213,6 +221,10 @@ static inline esp_key_mgr_key_usage_t key_mgr_ll_get_key_usage(esp_key_mgr_key_t
return (esp_key_mgr_key_usage_t) (REG_GET_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_HMAC));
break;
case ESP_KEY_MGR_DS_KEY:
return (esp_key_mgr_key_usage_t) (REG_GET_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_DS));
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return ESP_KEY_MGR_USAGE_INVALID;
@@ -253,6 +265,10 @@ static inline void key_mgr_ll_lock_use_efuse_key_reg(esp_key_mgr_key_type_t key_
REG_SET_BIT(KEYMNG_LOCK_REG, KEYMNG_USE_EFUSE_KEY_LOCK_HMAC);
break;
case ESP_KEY_MGR_DS_KEY:
REG_SET_BIT(KEYMNG_LOCK_REG, KEYMNG_USE_EFUSE_KEY_LOCK_DS);
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return;
@@ -291,7 +307,6 @@ static inline bool key_mgr_ll_is_result_success(void)
static inline bool key_mgr_ll_is_key_deployment_valid(const esp_key_mgr_key_type_t key_type)
{
switch (key_type) {
case ESP_KEY_MGR_ECDSA_192_KEY:
return REG_GET_FIELD(KEYMNG_KEY_VLD_REG, KEYMNG_KEY_ECDSA_192_VLD);
case ESP_KEY_MGR_ECDSA_256_KEY:
@@ -309,6 +324,10 @@ static inline bool key_mgr_ll_is_key_deployment_valid(const esp_key_mgr_key_type
return REG_GET_FIELD(KEYMNG_KEY_VLD_REG, KEYMNG_KEY_HMAC_VLD);
break;
case ESP_KEY_MGR_DS_KEY:
return REG_GET_FIELD(KEYMNG_KEY_VLD_REG, KEYMNG_KEY_DS_VLD);
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return 0;