psa: Move RSA/ECP export code to RSA/ECP specific C file
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/library/psa_crypto_ecp.h b/library/psa_crypto_ecp.h
index 517933f..c6d8437 100644
--- a/library/psa_crypto_ecp.h
+++ b/library/psa_crypto_ecp.h
@@ -38,4 +38,48 @@
const uint8_t *data,
size_t data_length,
mbedtls_ecp_keypair **p_ecp );
-#endif /* PSA_CRYPTO_ECP */
+
+/** Export an ECP key to export representation
+ *
+ * \param[in] type The type of key (public/private) to export
+ * \param[in] ecp The internal ECP representation from which to export
+ * \param[out] data The buffer to export to
+ * \param[in] data_size The length of the buffer to export to
+ * \param[out] data_length The amount of bytes written to \p data
+ */
+psa_status_t mbedtls_psa_ecp_export_key( psa_key_type_t type,
+ mbedtls_ecp_keypair *ecp,
+ uint8_t *data,
+ size_t data_size,
+ size_t *data_length );
+
+/** Export an ECP public key or the public part of an ECP key pair in binary
+ * format.
+ *
+ * \note The signature of this function is that of a PSA driver
+ * export_public_key entry point. This function behaves as an
+ * export_public_key entry point as defined in the PSA driver interface
+ * specification.
+ *
+ * \param[in] attributes The attributes for the key to export.
+ * \param[in] key_buffer Material or context of the key to export.
+ * \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
+ * \param[out] data Buffer where the key data is to be written.
+ * \param[in] data_size Size of the \p data buffer in bytes.
+ * \param[out] data_length On success, the number of bytes written in
+ * \p data
+ *
+ * \retval #PSA_SUCCESS The ECP public key was exported successfully.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE
+ * \retval #PSA_ERROR_HARDWARE_FAILURE
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_STORAGE_FAILURE
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ */
+psa_status_t mbedtls_psa_ecp_export_public_key(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ uint8_t *data, size_t data_size, size_t *data_length );
+
+#endif /* PSA_CRYPTO_ECP_H */