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/*
* Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation
*
* Author: Nikos Mavroyanopoulos
*
* This file is part of GNUTLS-EXTRA.
*
* GNUTLS-EXTRA 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.
*
* GNUTLS-EXTRA 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.
*
* You should have received a copy of the GNU General Public License
* along with GNUTLS-EXTRA; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
/* Functions on OpenPGP privkey parsing
*/
#include <gnutls_int.h>
#include <gnutls_datum.h>
#include <gnutls_global.h>
#include <gnutls_errors.h>
#include <openpgp.h>
#include <gnutls_openpgp.h>
#include <x509/rfc2818.h>
#include <gnutls_cert.h>
/**
* gnutls_openpgp_privkey_init - This function initializes a gnutls_openpgp_privkey_t structure
* @key: The structure to be initialized
*
* This function will initialize an OpenPGP key structure.
*
* Returns 0 on success.
*
**/
int
gnutls_openpgp_privkey_init (gnutls_openpgp_privkey_t * key)
{
*key = gnutls_calloc (1, sizeof (gnutls_openpgp_privkey_int));
if (*key)
return 0; /* success */
return GNUTLS_E_MEMORY_ERROR;
}
/**
* gnutls_openpgp_privkey_deinit - This function deinitializes memory used by a gnutls_openpgp_privkey_t structure
* @key: The structure to be initialized
*
* This function will deinitialize a key structure.
*
**/
void
gnutls_openpgp_privkey_deinit (gnutls_openpgp_privkey_t key)
{
if (!key)
return;
_gnutls_gkey_deinit (&key->pkey);
gnutls_free (key);
}
/**
* gnutls_openpgp_privkey_import - This function will import a RAW or BASE64 encoded key
* @key: The structure to store the parsed key.
* @data: The RAW or BASE64 encoded key.
* @format: One of gnutls_openpgp_key_fmt_t elements.
* @pass: Unused for now
* @flags: should be zero
*
* This function will convert the given RAW or Base64 encoded key
* to the native gnutls_openpgp_privkey_t format. The output will be stored in 'key'.
*
* Returns 0 on success.
*
**/
int
gnutls_openpgp_privkey_import (gnutls_openpgp_privkey_t key,
const gnutls_datum_t * data,
gnutls_openpgp_key_fmt_t format,
const char *pass, unsigned int flags)
{
int rc;
rc = _gnutls_openpgp_raw_privkey_to_gkey (&key->pkey, data, format);
if (rc)
{
gnutls_assert ();
return rc;
}
return 0;
}
/**
* gnutls_openpgp_privkey_get_pk_algorithm - This function returns the key's PublicKey algorithm
* @key: is an OpenPGP key
* @bits: if bits is non null it will hold the size of the parameters' in bits
*
* This function will return the public key algorithm of an OpenPGP
* certificate.
*
* If bits is non null, it should have enough size to hold the parameters
* size in bits. For RSA the bits returned is the modulus.
* For DSA the bits returned are of the public exponent.
*
* Returns a member of the GNUTLS_PKAlgorithm enumeration on success,
* or a negative value on error.
*
**/
gnutls_pk_algorithm_t
gnutls_openpgp_privkey_get_pk_algorithm (gnutls_openpgp_privkey_t key,
unsigned int *bits)
{
int pk = key->pkey.pk_algorithm;
if (bits)
{
*bits = 0;
if (pk == GNUTLS_PK_RSA)
*bits = _gnutls_mpi_get_nbits (key->pkey.params[0]);
if (pk == GNUTLS_PK_DSA)
*bits = _gnutls_mpi_get_nbits (key->pkey.params[3]);
}
return pk;
}
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