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/*
* Copyright 2009 Henri Verbeet for CodeWeavers
* Copyright 2018 Hans Leidekker for CodeWeavers
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#ifdef HAVE_COMMONCRYPTO_COMMONCRYPTOR_H
#include <AvailabilityMacros.h>
#include <CommonCrypto/CommonCryptor.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "ntsecapi.h"
#include "bcrypt.h"
#include "bcrypt_internal.h"
#include "wine/debug.h"
#include "wine/heap.h"
#include "wine/library.h"
#include "wine/unicode.h"
#if defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1080 && !defined(HAVE_GNUTLS_CIPHER_INIT)
WINE_DEFAULT_DEBUG_CHANNEL(bcrypt);
NTSTATUS key_set_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags )
{
if (!strcmpW( prop, BCRYPT_CHAINING_MODE ))
{
if (!strncmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_ECB, size ))
{
key->u.s.mode = MODE_ID_ECB;
return STATUS_SUCCESS;
}
else if (!strncmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC, size ))
{
key->u.s.mode = MODE_ID_CBC;
return STATUS_SUCCESS;
}
else
{
FIXME( "unsupported mode %s\n", debugstr_wn( (WCHAR *)value, size ) );
return STATUS_NOT_IMPLEMENTED;
}
}
FIXME( "unsupported key property %s\n", debugstr_w(prop) );
return STATUS_NOT_IMPLEMENTED;
}
static ULONG get_block_size( struct algorithm *alg )
{
ULONG ret = 0, size = sizeof(ret);
get_alg_property( alg, BCRYPT_BLOCK_LENGTH, (UCHAR *)&ret, sizeof(ret), &size );
return ret;
}
NTSTATUS key_symmetric_init( struct key *key, struct algorithm *alg, const UCHAR *secret, ULONG secret_len )
{
switch (alg->id)
{
case ALG_ID_AES:
switch (alg->mode)
{
case MODE_ID_ECB:
case MODE_ID_CBC:
break;
default:
FIXME( "mode %u not supported\n", alg->mode );
return STATUS_NOT_SUPPORTED;
}
break;
default:
FIXME( "algorithm %u not supported\n", alg->id );
return STATUS_NOT_SUPPORTED;
}
if (!(key->u.s.block_size = get_block_size( alg ))) return STATUS_INVALID_PARAMETER;
if (!(key->u.s.secret = heap_alloc( secret_len ))) return STATUS_NO_MEMORY;
memcpy( key->u.s.secret, secret, secret_len );
key->u.s.secret_len = secret_len;
key->alg_id = alg->id;
key->u.s.mode = alg->mode;
key->u.s.ref_encrypt = NULL; /* initialized on first use */
key->u.s.ref_decrypt = NULL;
return STATUS_SUCCESS;
}
static CCMode get_cryptor_mode( struct key *key )
{
switch (key->u.s.mode)
{
case MODE_ID_ECB: return kCCModeECB;
case MODE_ID_CBC: return kCCModeCBC;
default:
FIXME( "unsupported mode %u\n", key->u.s.mode );
return 0;
}
}
NTSTATUS key_symmetric_set_params( struct key *key, UCHAR *iv, ULONG iv_len )
{
CCCryptorStatus status;
CCMode mode;
if (!(mode = get_cryptor_mode( key ))) return STATUS_NOT_SUPPORTED;
if (key->u.s.ref_encrypt)
{
CCCryptorRelease( key->u.s.ref_encrypt );
key->u.s.ref_encrypt = NULL;
}
if (key->u.s.ref_decrypt)
{
CCCryptorRelease( key->u.s.ref_decrypt );
key->u.s.ref_decrypt = NULL;
}
if ((status = CCCryptorCreateWithMode( kCCEncrypt, mode, kCCAlgorithmAES128, ccNoPadding, iv, key->u.s.secret,
key->u.s.secret_len, NULL, 0, 0, 0, &key->u.s.ref_encrypt )) != kCCSuccess)
{
WARN( "CCCryptorCreateWithMode failed %d\n", status );
return STATUS_INTERNAL_ERROR;
}
if ((status = CCCryptorCreateWithMode( kCCDecrypt, mode, kCCAlgorithmAES128, ccNoPadding, iv, key->u.s.secret,
key->u.s.secret_len, NULL, 0, 0, 0, &key->u.s.ref_decrypt )) != kCCSuccess)
{
WARN( "CCCryptorCreateWithMode failed %d\n", status );
CCCryptorRelease( key->u.s.ref_encrypt );
key->u.s.ref_encrypt = NULL;
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
NTSTATUS key_symmetric_set_auth_data( struct key *key, UCHAR *auth_data, ULONG len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_symmetric_encrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len )
{
CCCryptorStatus status;
if ((status = CCCryptorUpdate( key->u.s.ref_encrypt, input, input_len, output, output_len, NULL )) != kCCSuccess)
{
WARN( "CCCryptorUpdate failed %d\n", status );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
NTSTATUS key_symmetric_decrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len )
{
CCCryptorStatus status;
if ((status = CCCryptorUpdate( key->u.s.ref_decrypt, input, input_len, output, output_len, NULL )) != kCCSuccess)
{
WARN( "CCCryptorUpdate failed %d\n", status );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
NTSTATUS key_symmetric_get_tag( struct key *key, UCHAR *tag, ULONG len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_asymmetric_init( struct key *key, struct algorithm *alg, const UCHAR *pubkey, ULONG pubkey_len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_asymmetric_verify( struct key *key, void *padding, UCHAR *hash, ULONG hash_len, UCHAR *signature,
ULONG signature_len, DWORD flags )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_export_ecc( struct key *key, UCHAR *output, ULONG len, ULONG *ret_len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_import_ecc( struct key *key, UCHAR *input, ULONG len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_asymmetric_generate( struct key *key )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_destroy( struct key *key )
{
if (key->u.s.ref_encrypt) CCCryptorRelease( key->u.s.ref_encrypt );
if (key->u.s.ref_decrypt) CCCryptorRelease( key->u.s.ref_decrypt );
heap_free( key->u.s.secret );
heap_free( key );
return STATUS_SUCCESS;
}
#endif
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