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-rw-r--r--examples/hashsmt/sha1_collision.cpp109
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diff --git a/examples/hashsmt/sha1_collision.cpp b/examples/hashsmt/sha1_collision.cpp
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--- a/examples/hashsmt/sha1_collision.cpp
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-/********************* */
-/*! \file sha1_collision.cpp
- ** \verbatim
- ** Top contributors (to current version):
- ** Dejan Jovanovic, Aina Niemetz, Tim King
- ** This file is part of the CVC4 project.
- ** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
- ** in the top-level source directory and their institutional affiliations.
- ** All rights reserved. See the file COPYING in the top-level source
- ** directory for licensing information.\endverbatim
- **
- ** \brief [[ Add one-line brief description here ]]
- **
- ** [[ Add lengthier description here ]]
- ** \todo document this file
- **/
-
-/*
- * sha1smt.cpp
- *
- * Created on: Jul 13, 2012
- * Author: dejan
- */
-
-#include <fstream>
-#include <iostream>
-#include <sstream>
-#include <string>
-
-#include <cvc4/cvc4.h>
-#include <cvc4/expr/expr_iomanip.h>
-#include <cvc4/options/set_language.h>
-#include "sha1.hpp"
-#include "word.h"
-
-using namespace std;
-using namespace cvc5;
-
-hashsmt::cvc4_uchar8 *createInput(unsigned size, std::string prefix, std::ostream& output) {
- hashsmt::cvc4_uchar8 *input = new hashsmt::cvc4_uchar8[size];
- for(unsigned i = 0; i < size; ++i) {
- stringstream ss;
- ss << prefix << i;
- input[i] = hashsmt::cvc4_uchar8(ss.str());
- output << DeclareFunctionCommand(ss.str(), input[i].getExpr(), input[i].getExpr().getType()) << endl;
- }
- return input;
-}
-
-int main(int argc, char* argv[]) {
-
- try {
-
- // Check the arguments
- if (argc != 4) {
- cerr << "usage: sha1smt size rounds (1..80) output-file" << std::endl;
- return 1;
- }
-
- // Get the input size to encode
- unsigned msgSize;
- istringstream msgSize_is(argv[1]);
- msgSize_is >> msgSize;
-
- // Get the number of rounds to use
- unsigned rounds;
- istringstream rounds_is(argv[2]);
- rounds_is >> rounds;
-
- // The output
- ofstream output(argv[3]);
- output << expr::ExprSetDepth(-1) << language::SetLanguage(language::output::LANG_SMTLIB_V2);
- output << SetBenchmarkLogicCommand("QF_BV") << endl;
- output << SetBenchmarkStatusCommand(SMT_UNSATISFIABLE) << endl;
-
- // Make the variables the size of the string
- hashsmt::cvc4_uchar8 *cvc4input1 = createInput(msgSize, "x", output);
- hashsmt::cvc4_uchar8 *cvc4input2 = createInput(msgSize, "y", output);
-
- // Do the cvc4 encoding for first message
- hashsmt::sha1 cvc4encoder1(rounds);
- cvc4encoder1.process_bytes(cvc4input1, msgSize);
- hashsmt::cvc4_uint32 cvc4digest1[5];
- cvc4encoder1.get_digest(cvc4digest1);
-
- // Do the cvc4 encoding for second message
- hashsmt::sha1 cvc4encoder2(rounds);
- cvc4encoder2.process_bytes(cvc4input2, msgSize);
- hashsmt::cvc4_uint32 cvc4digest2[5];
- cvc4encoder2.get_digest(cvc4digest2);
-
- // Create the assertion
- Expr inputEqual = (hashsmt::Word::concat(cvc4input1, msgSize) == hashsmt::Word::concat(cvc4input2, msgSize));
- Expr digestEqual = (hashsmt::Word::concat(cvc4digest1, 5) == hashsmt::Word::concat(cvc4digest2, 5));
- Expr assertion = inputEqual.notExpr().andExpr(digestEqual);
-
- output << AssertCommand(assertion) << endl;
-
- // Checksat command
- output << CheckSatCommand() << endl;
-
- delete[] cvc4input1;
- delete[] cvc4input2;
- }
- catch (cvc5::Exception& e)
- {
- cerr << e << endl;
- }
-}
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