| /** | 
 |  * @file | 
 |  * X.509 module documentation file. | 
 |  */ | 
 |  | 
 | /** | 
 |  * @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 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 generate Certificate Signing | 
 |  * Requests and X509 certificates just as a CA would do. | 
 |  */ |