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// Copyright (C) 2010 David Sugar, Tycho Softworks.
//
// This file is part of GNU uCommon C++.
//
// GNU uCommon C++ 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.
//
// GNU uCommon C++ 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 GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.
#include "local.h"
static const unsigned char *_salt = NULL;
static unsigned _rounds = 1;
Cipher::Key::Key(const char *cipher)
{
secure::init();
set(cipher);
}
Cipher::Key::Key(const char *cipher, const char *digest)
{
secure::init();
set(cipher, digest);
}
Cipher::Key::Key(const char *cipher, const char *digest, const char *text, size_t size, const unsigned char *salt, unsigned rounds)
{
secure::init();
set(cipher, digest);
assign(text, size, salt, rounds);
}
void Cipher::Key::assign(const char *text, size_t size, const unsigned char *salt, unsigned rounds)
{
keysize = 0;
}
Cipher::Key::Key()
{
secure::init();
clear();
}
Cipher::Key::~Key()
{
clear();
}
void Cipher::Key::set(const char *cipher)
{
clear();
}
void Cipher::Key::set(const char *cipher, const char *digest)
{
set(cipher);
}
void Cipher::Key::assign(const char *text, size_t size)
{
assign(text, size, _salt, _rounds);
}
void Cipher::Key::clear(void)
{
algotype = NULL;
hashtype = NULL;
keysize = 0;
zerofill(keybuf, sizeof(keybuf));
zerofill(ivbuf, sizeof(ivbuf));
}
void Cipher::Key::options(const unsigned char *salt, unsigned rounds)
{
_salt = salt;
_rounds = rounds;
}
Cipher::Cipher(key_t key, mode_t mode, unsigned char *address, size_t size)
{
bufaddr = NULL;
bufsize = bufpos = 0;
context = NULL;
}
Cipher::Cipher()
{
bufaddr = NULL;
bufsize = bufpos = 0;
context = NULL;
}
Cipher::~Cipher()
{
flush();
release();
}
bool Cipher::is(const char *id)
{
return false;
}
void Cipher::push(unsigned char *address, size_t size)
{
}
void Cipher::release(void)
{
}
size_t Cipher::flush(void)
{
return 0;
}
size_t Cipher::puts(const char *text)
{
if(!text)
return 0;
return put((const unsigned char *)text, strlen(text));
}
void Cipher::set(unsigned char *address, size_t size)
{
flush();
bufaddr = address;
bufsize = size;
bufpos = 0;
}
void Cipher::set(key_t key, mode_t mode, unsigned char *address, size_t size)
{
release();
bufsize = size;
bufmode = mode;
bufaddr = address;
memcpy(&keys, key, sizeof(keys));
}
size_t Cipher::put(const unsigned char *data, size_t size)
{
size_t count = 0;
while(bufsize && size + bufpos > bufsize) {
size_t diff = bufsize - bufpos;
count += put(data, diff);
data += diff;
size -= diff;
}
return 0;
}
size_t Cipher::pad(const unsigned char *data, size_t size)
{
return 0;
}
size_t Cipher::process(unsigned char *data, size_t size, bool flag)
{
return 0;
}
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