#ifndef SSLHELP_H
#define SSLHELP_H
/* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU GPL (v>=2)
 * and comes with ABSOLUTELY NO WARRANTY!
 * See LICENSE.txt for details.
 */


/**
 * @file sslhelp.h
 * @brief Helper functions to combine Qt with Polarssl
 */
#include <polarssl/error.h>
#include <polarssl/pk.h>

#include <QString>

/** @brief get a human readable error message for a polarssl return code
 *
 * @param [in] ret A polarssl error code
 * @returns A QString representation of that error
 */
QString getPolarSSLErrorMsg(int ret);

/** @brief calculate the sha256 of the bytearray data
 *
 * @param [in] data The data to hash
 * @returns the sha256sum of the data
 */
QByteArray sha256sum(const QByteArray& data);

/** @brief calculate the sha1 of the bytearray data
 *
 * @param [in] data The data to hash
 * @returns the sha1sum of the data
 */
QByteArray sha1sum(const QByteArray& data);

/** @brief Create a RSA signature fur a sha256 hashsum
 *
 * @param [in] hash the hash to sign.
 * @param [in] pk the key to use.
 * @returns the signature of the data or an empty byte array on error
 */
QByteArray rsaSignSHA256Hash(const QByteArray& hash, pk_context *pk);
#endif // SSLHELP_H