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/*
* Copyright (C) 2001-2015 Free Software Foundation, Inc.
* Copyright (C) 2015 Nikos Mavrogiannopoulos
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*
*/
#include "gnutls_int.h"
#include "extras/randomart.h"
/**
* gnutls_random_art:
* @type: The type of the random art (for now only %GNUTLS_RANDOM_ART_OPENSSH is supported)
* @key_type: The type of the key (RSA, DSA etc.)
* @key_size: The size of the key in bits
* @fpr: The fingerprint of the key
* @fpr_size: The size of the fingerprint
* @art: The returned random art
*
* This function will convert a given fingerprint to an "artistic"
* image. The returned image is allocated using gnutls_malloc(), is
* null-terminated but art->size will not account the terminating null.
*
* Returns: On success, %GNUTLS_E_SUCCESS (0) is returned, otherwise
* an error code is returned.
*
**/
int gnutls_random_art(gnutls_random_art_t type, const char *key_type,
unsigned int key_size, void *fpr, size_t fpr_size,
gnutls_datum_t *art)
{
if (type != GNUTLS_RANDOM_ART_OPENSSH)
return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
art->data = (void *)_gnutls_key_fingerprint_randomart(
fpr, fpr_size, key_type, key_size, NULL);
if (art->data == NULL)
return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
art->size = strlen((char *)art->data);
return 0;
}
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