encfs/cipher/CipherKey.cpp
Valient Gough 7e95ff90c8 encapsulate old cipher support layer
git-svn-id: http://encfs.googlecode.com/svn/trunk@95 db9cf616-1c43-0410-9cb8-a902689de0d6
2013-03-05 06:36:32 +00:00

94 lines
2.0 KiB
C++

/*****************************************************************************
* Author: Valient Gough <vgough@pobox.com>
*
*****************************************************************************
* Copyright (c) 2013 Valient Gough
*
* This program 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 3 of the License, or (at your option) any
* later version.
*
* 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 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 <http://www.gnu.org/licenses/>.
*/
#include "cipher/CipherKey.h"
#include "base/shared_ptr.h"
#include "base/types.h"
#include "cipher/MemoryPool.h"
namespace encfs {
CipherKey::CipherKey()
: _valid(false)
{
}
CipherKey::CipherKey(int length)
: _valid(true)
{
if (length > 0)
_mem.reset(new SecureMem(length));
}
CipherKey::CipherKey(const byte *data, int length)
: _valid(true)
{
_mem.reset(new SecureMem(length));
memcpy(_mem->data, data, length);
}
CipherKey::CipherKey(const CipherKey& src)
: _valid(src._valid),
_mem(src._mem)
{
}
CipherKey::~CipherKey()
{
}
void CipherKey::operator = (const CipherKey& src)
{
_mem = src._mem;
_valid = src._valid;
}
byte *CipherKey::data() const
{
return !_mem ? NULL : _mem->data;
}
int CipherKey::size() const
{
return !_mem ? 0 : _mem->size;
}
void CipherKey::reset()
{
_mem.reset();
_valid = false;
}
bool CipherKey::valid() const
{
return _valid;
}
bool operator == (const CipherKey &a, const CipherKey &b) {
if (a.size() != b.size())
return false;
return memcmp(a.data(), b.data(), a.size()) == 0;
}
} // namespace encfs