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/*
* TLSH is provided for use under two licenses: Apache OR BSD.
* Users may opt to use either license depending on the license
* restictions of the systems with which they plan to integrate
* the TLSH code.
*/
/* ==============
* Apache License
* ==============
* Copyright 2013 Trend Micro Incorporated
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* ===========
* BSD License
* ===========
* Copyright (c) 2013, Trend Micro Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
//////////////////////////////////////////////////////////////////////////
//
// (C) Trend Micro
// written Jon Oliver 2009 and 2010
//
//////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "tlsh.h"
int main(int argc, char *argv[])
{
Tlsh t1;
Tlsh t2;
const char *str1 = "This is a test for Lili Diao. This is a string. Hello Hello Hello ";
const char *str2 = "This is a test for Jon Oliver. This is a string. Hello Hello Hello ";
int len1 = strlen(str1);
int len2 = strlen(str2);
char minSizeBuffer1[512];
for (int i = 0; i < 511; i++) {
minSizeBuffer1[i] = i % 26 + 'A';
}
minSizeBuffer1[511] = 0;
strncpy(minSizeBuffer1, str1, len1);
t1.final( (const unsigned char*) minSizeBuffer1, 512);
char minSizeBuffer2[1024];
for (int i = 0; i < 1023; i++) {
minSizeBuffer2[i] = i % 26 + 'A';
}
minSizeBuffer2[1023] = 0;
strncpy(minSizeBuffer2, str2, len2);
t2.final( (const unsigned char*) minSizeBuffer2, 1024);
printf("str1 = '%s'\n", minSizeBuffer1 );
printf("str2 = '%s'\n", minSizeBuffer2 );
printf("hash1 = %s\n", t1.getHash() );
printf("hash2 = %s\n", t2.getHash() );
printf("difference (same strings) = %d\n", t1.totalDiff(&t1) );
printf("difference (with len) = %d\n", t1.totalDiff(&t2) );
printf("difference (without len) = %d\n", t1.totalDiff(&t2, false) );
printf("Testing Tlsh with multiple update calls\n");
Tlsh t3, t4;
snprintf(minSizeBuffer1, sizeof(minSizeBuffer1), "%s", str1);
t3.update( (const unsigned char*) minSizeBuffer1, len1);
for (int i = 0; i < 511; i++) {
minSizeBuffer1[i] = i % 26 + 'A';
}
minSizeBuffer1[511] = 0;
t3.update( (const unsigned char*) minSizeBuffer1+len1, 512-len1);
t3.final();
assert(strcmp(t1.getHash(), t3.getHash()) == 0);
snprintf(minSizeBuffer2, sizeof(minSizeBuffer2), "%s", str2);
t4.update( (const unsigned char*) minSizeBuffer2, len2);
for (int i = 0; i < 1023; i++) {
minSizeBuffer2[i] = i % 26 + 'A';
}
minSizeBuffer2[1023] = 0;
t4.final( (const unsigned char*) minSizeBuffer2+len2, 1024-len2);
assert(strcmp(t2.getHash(), t4.getHash()) == 0);
printf("hash3 = %s\n", t3.getHash() );
printf("hash4 = %s\n", t4.getHash() );
printf("Testing Tlsh.fromTlshStr()\n");
printf("Recreating tlsh3 from %s\n", t1.getHash(minSizeBuffer1, sizeof(minSizeBuffer1)));
t3.reset();
t3.fromTlshStr(minSizeBuffer1);
printf("hash3 = %s\n", t3.getHash(minSizeBuffer2, sizeof(minSizeBuffer2)));
assert(strcmp(minSizeBuffer1, minSizeBuffer2) == 0);
printf("Recreating tlsh4 from %s\n", t2.getHash(minSizeBuffer1, sizeof(minSizeBuffer1)));
t4.reset();
t4.fromTlshStr(minSizeBuffer1);
printf("hash4 = %s\n", t4.getHash(minSizeBuffer2, sizeof(minSizeBuffer2)));
assert(strcmp(minSizeBuffer1, minSizeBuffer2) == 0);
printf("difference (same strings) = %d\n", t3.totalDiff(&t3) );
printf("difference (with len) = %d\n", t3.totalDiff(&t4) );
printf("difference (without len) = %d\n", t3.totalDiff(&t4, false) );
}
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