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/**
* @file llxorcipher_tut.cpp
* @author Adroit
* @date 2007-03
* @brief llxorcipher, llnullcipher test cases.
*
* $LicenseInfo:firstyear=2007&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* 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;
* version 2.1 of the License only.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "lltut.h"
#include "llxorcipher.h"
#include "llnullcipher.h"
namespace tut
{
struct cipher
{
};
typedef test_group<cipher> cipher_t;
typedef cipher_t::object cipher_object_t;
tut::cipher_t tut_cipher("cipher");
//encrypt->decrypt
template<> template<>
void cipher_object_t::test<1>()
{
const U32 len = 3;
const U8 pad[] = "abc";
const char str[] = "SecondLife";
const S32 str_len = sizeof(str);
U8 encrypted[str_len];
U8 decrypted[str_len];
LLXORCipher xorCipher(pad, len);
LLXORCipher xorCipher1(pad, len);
U32 length = xorCipher.requiredEncryptionSpace(50);
ensure("requiredEncryptionSpace() function failed", (length == 50));
U32 lenEncrypted = xorCipher.encrypt((U8 *) str, str_len, encrypted, str_len);
ensure("Encryption failed", (lenEncrypted == str_len));
U32 lenDecrypted = xorCipher1.decrypt(encrypted, str_len, decrypted, str_len);
ensure("Decryption failed", (lenDecrypted == str_len));
ensure_memory_matches("LLXORCipher Encrypt/Decrypt failed", str, str_len, decrypted, lenDecrypted);
}
// operator=
template<> template<>
void cipher_object_t::test<2>()
{
const U8 pad[] = "ABCDEFGHIJKLMNOPQ"; // pad len longer than data to be ciphered
const U32 pad_len = sizeof(pad);
const U8 pad1[] = "SecondLife";
const U32 pad_len1 = sizeof(pad1);
const char str[] = "To Be Ciphered";
const S32 str_len = sizeof(str);
U8 encrypted[str_len];
U8 decrypted[str_len];
LLXORCipher xorCipher(pad, pad_len);
LLXORCipher xorCipher1(pad1, pad_len1);
xorCipher.encrypt((U8 *) str, str_len, encrypted, str_len);
// make xorCipher1 same as xorCipher..so that xorCipher1 can decrypt what was
// encrypted using xorCipher
xorCipher1 = xorCipher;
U32 lenDecrypted = xorCipher1.decrypt(encrypted, str_len, decrypted, str_len);
ensure_memory_matches("LLXORCipher operator= failed", str, str_len, decrypted, lenDecrypted);
}
//in place encrypt->decrypt
template<> template<>
void cipher_object_t::test<3>()
{
U32 padNum = 0x12349087;
const U8* pad = (U8*) &padNum;
const U32 pad_len = sizeof(U32);
char str[] = "To Be Ciphered a long string.........!!!.";
char str1[] = "To Be Ciphered a long string.........!!!."; // same as str
const S32 str_len = sizeof(str);
LLXORCipher xorCipher(pad, pad_len);
LLXORCipher xorCipher1(pad, pad_len);
xorCipher.encrypt((U8 *) str, str_len);
// it should not be the same as original data!
ensure("LLXORCipher: In Place encrypt failed", memcmp(str, str1, str_len) != 0);
xorCipher1.decrypt((U8 *) str, str_len);
// it should not be the same as original data!
ensure_memory_matches("LLXORCipher: In Place decrypt failed", str, str_len, str1, str_len);
}
//LLNullCipher encrypt->decrypt
template<> template<>
void cipher_object_t::test<4>()
{
const char str[] = "SecondLife";
const S32 str_len = sizeof(str);
U8 encrypted[str_len];
U8 decrypted[str_len];
LLNullCipher nullCipher;
LLNullCipher nullCipher1;
U32 length = nullCipher.requiredEncryptionSpace(50);
ensure("LLNullCipher::requiredEncryptionSpace() function failed", (length == 50));
U32 len1 = nullCipher.encrypt((U8 *) str, str_len, encrypted, str_len);
ensure_memory_matches("LLNullCipher - Source transformed during encryption.", encrypted, len1, str, str_len);
U32 len2 = nullCipher1.decrypt(encrypted, str_len, decrypted, str_len);
ensure_memory_matches("LLNullCipher - Decryption failed", decrypted, len2, str, str_len);
}
}
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