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feat(mbedtls/esp_rsa_ds): Introduce ESP-RSA DS opaque key context

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This commit is contained in:
harshal.patil
2026-03-18 16:38:23 +05:30
parent d13bbd4b2b
commit 96f5317806
8 changed files with 100 additions and 81 deletions
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components/esp-tls/esp_tls_mbedtls.c
+8 -4
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@@ -1420,6 +1420,10 @@ static esp_err_t esp_mbedtls_init_pk_ctx_for_ds(const void *pki)
psa_key_id_t ds_key_id = 0;
psa_status_t status = PSA_ERROR_GENERIC_ERROR;
esp_rsa_ds_opaque_key_t rsa_ds_opaque_key = {0};
rsa_ds_opaque_key.ds_data_ctx = ds_data;
psa_key_attributes_t ds_key_attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_algorithm_t alg = PSA_ALG_RSA_PKCS1V15_SIGN(PSA_ALG_ANY_HASH);
#ifdef CONFIG_MBEDTLS_SSL_PROTO_TLS1_3
@@ -1427,14 +1431,14 @@ static esp_err_t esp_mbedtls_init_pk_ctx_for_ds(const void *pki)
#endif /* CONFIG_MBEDTLS_SSL_PROTO_TLS1_3 */
psa_set_key_type(&ds_key_attributes, PSA_KEY_TYPE_RSA_KEY_PAIR);
psa_set_key_bits(&ds_key_attributes, ds_data->rsa_length_bits);
psa_set_key_bits(&ds_key_attributes, rsa_ds_opaque_key.ds_data_ctx->rsa_length_bits);
psa_set_key_usage_flags(&ds_key_attributes, PSA_KEY_USAGE_SIGN_HASH);
psa_set_key_algorithm(&ds_key_attributes, alg);
psa_set_key_lifetime(&ds_key_attributes, PSA_KEY_LIFETIME_ESP_RSA_DS);
status = psa_import_key(&ds_key_attributes,
(const uint8_t *)ds_data,
sizeof(esp_ds_data_ctx_t),
&ds_key_id);
(const uint8_t *)&rsa_ds_opaque_key,
sizeof(rsa_ds_opaque_key),
&ds_key_id);
psa_reset_key_attributes(&ds_key_attributes);
if (status != PSA_SUCCESS) {
ESP_LOGE(TAG, "Failed to import DS key to PSA, status = %d", status);