diff --git a/doxygen/input/doc_x509.h b/doxygen/input/doc_x509.h
index 16fe75a..3798814 100644
--- a/doxygen/input/doc_x509.h
+++ b/doxygen/input/doc_x509.h
@@ -5,17 +5,19 @@
 
 /**
  * @addtogroup x509_module X.509 module
- * 
+ *
  * The X.509 module provides X.509 support which includes:
  * - X.509 certificate (CRT) reading (see \c x509parse_crt() and
  *   \c x509parse_crtfile()).
  * - X.509 certificate revocation list (CRL) reading (see \c x509parse_crl()
  *   and\c x509parse_crlfile()).
- * - X.509 (RSA) private key reading (see \c x509parse_key_rsa() and
- *   \c x509parse_keyfile_rsa()).
+ * - X.509 (RSA and ECC) private key reading (see \c x509parse_key() and
+ *   \c x509parse_keyfile()).
  * - X.509 certificate signature verification (see \c x509parse_verify())
+ * - X.509 certificate writing and certificate request writing (see
+ *   \c x509write_crt_der() and \c x509write_csr_der()).
  *
  * This module can be used to build a certificate authority (CA) chain and
- * verify its signature. It is also used to get a (RSA) private key for signing
- * and decryption.
+ * verify its signature. It is also used to generate Certificate Signing
+ * Requests and X509 certificates just as a CA would do.
  */