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/*
* Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
* Copyright (C) Guenther Deschner 2008.
*
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "../libcli/auth/libcli_auth.h"
#include "../lib/crypto/md5.h"
#include "../lib/crypto/arcfour.h"
/*************************************************************************
inits a samr_CryptPasswordEx structure
*************************************************************************/
void init_samr_CryptPasswordEx(const char *pwd,
DATA_BLOB *session_key,
struct samr_CryptPasswordEx *pwd_buf)
{
/* samr_CryptPasswordEx */
uchar pwbuf[532];
struct MD5Context md5_ctx;
uint8_t confounder[16];
DATA_BLOB confounded_session_key = data_blob(NULL, 16);
encode_pw_buffer(pwbuf, pwd, STR_UNICODE);
generate_random_buffer((uint8_t *)confounder, 16);
MD5Init(&md5_ctx);
MD5Update(&md5_ctx, confounder, 16);
MD5Update(&md5_ctx, session_key->data,
session_key->length);
MD5Final(confounded_session_key.data, &md5_ctx);
arcfour_crypt_blob(pwbuf, 516, &confounded_session_key);
memcpy(&pwbuf[516], confounder, 16);
memcpy(pwd_buf->data, pwbuf, sizeof(pwbuf));
data_blob_free(&confounded_session_key);
}
/*************************************************************************
inits a samr_CryptPassword structure
*************************************************************************/
void init_samr_CryptPassword(const char *pwd,
DATA_BLOB *session_key,
struct samr_CryptPassword *pwd_buf)
{
/* samr_CryptPassword */
encode_pw_buffer(pwd_buf->data, pwd, STR_UNICODE);
arcfour_crypt_blob(pwd_buf->data, 516, session_key);
}
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