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