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feat(esp_key_mgr): Support HMAC key deployments using Key Manager

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This commit is contained in:
harshal.patil
2025-06-10 16:51:59 +05:30
parent 8ab6b4d694
commit 265b0d7579
7 changed files with 84 additions and 16 deletions
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23
components/hal/esp32c5/include/hal/key_mgr_ll.h
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@@ -171,6 +171,7 @@ static inline void key_mgr_ll_set_key_usage(const esp_key_mgr_key_type_t key_typ
REG_CLR_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_ECDSA);
}
break;
case ESP_KEY_MGR_XTS_AES_128_KEY:
case ESP_KEY_MGR_XTS_AES_256_KEY:
if (key_usage == ESP_KEY_MGR_USE_EFUSE_KEY) {
@@ -180,6 +181,14 @@ static inline void key_mgr_ll_set_key_usage(const esp_key_mgr_key_type_t key_typ
}
break;
case ESP_KEY_MGR_HMAC_KEY:
if (key_usage == ESP_KEY_MGR_USE_EFUSE_KEY) {
REG_SET_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_HMAC);
} else {
REG_CLR_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_HMAC);
}
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return;
@@ -200,6 +209,10 @@ 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_FLASH));
break;
case ESP_KEY_MGR_HMAC_KEY:
return (esp_key_mgr_key_usage_t) (REG_GET_BIT(KEYMNG_STATIC_REG, KEYMNG_USE_EFUSE_KEY_HMAC));
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return ESP_KEY_MGR_USAGE_INVALID;
@@ -230,10 +243,16 @@ static inline void key_mgr_ll_lock_use_efuse_key_reg(esp_key_mgr_key_type_t key_
case ESP_KEY_MGR_ECDSA_384_KEY:
REG_SET_BIT(KEYMNG_LOCK_REG, KEYMNG_USE_EFUSE_KEY_LOCK_ECDSA);
break;
case ESP_KEY_MGR_XTS_AES_128_KEY:
case ESP_KEY_MGR_XTS_AES_256_KEY:
REG_SET_BIT(KEYMNG_LOCK_REG, KEYMNG_USE_EFUSE_KEY_LOCK_FLASH);
break;
case ESP_KEY_MGR_HMAC_KEY:
REG_SET_BIT(KEYMNG_LOCK_REG, KEYMNG_USE_EFUSE_KEY_LOCK_HMAC);
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return;
@@ -286,6 +305,10 @@ 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_FLASH_VLD);
break;
case ESP_KEY_MGR_HMAC_KEY:
return REG_GET_FIELD(KEYMNG_KEY_VLD_REG, KEYMNG_KEY_HMAC_VLD);
break;
default:
HAL_ASSERT(false && "Unsupported mode");
return 0;