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/*
* Copyright (C) 2013 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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 General Public License
* for more details.
*/
#include "sshkey_encoder.h"
#include <bio/bio_writer.h>
/**
* Encode the public key as Base64 encoded SSH key blob
*/
static bool build_public_key(chunk_t *encoding, va_list args)
{
bio_writer_t *writer;
chunk_t n, e;
if (cred_encoding_args(args, CRED_PART_RSA_MODULUS, &n,
CRED_PART_RSA_PUB_EXP, &e, CRED_PART_END))
{
writer = bio_writer_create(0);
writer->write_data32(writer, chunk_from_str("ssh-rsa"));
writer->write_data32(writer, e);
writer->write_data32(writer, n);
*encoding = chunk_to_base64(writer->get_buf(writer), NULL);
writer->destroy(writer);
return TRUE;
}
return FALSE;
}
bool sshkey_encoder_encode(cred_encoding_type_t type, chunk_t *encoding,
va_list args)
{
switch (type)
{
case PUBKEY_SSHKEY:
return build_public_key(encoding, args);
default:
return FALSE;
}
}
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