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author | Dejan Jovanovic <dejan.jovanovic@gmail.com> | 2014-05-07 23:26:42 -0700 |
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committer | Dejan Jovanovic <dejan.jovanovic@gmail.com> | 2014-05-07 23:26:42 -0700 |
commit | fdbc8e0582dfe1addb229d406201a2ec1d513959 (patch) | |
tree | ed2c0e8782a88386d1977f53b8b3cbd26ed5d3a4 | |
parent | 021be18a8d84179966703f07f8f98d2c9193e248 (diff) |
Adding encoding of sha1 collision for the hashing example
-rw-r--r-- | .cproject | 26 | ||||
-rw-r--r-- | examples/hashsmt/Makefile.am | 18 | ||||
-rw-r--r-- | examples/hashsmt/sha1.hpp | 9 | ||||
-rw-r--r-- | examples/hashsmt/sha1_collision.cpp | 108 | ||||
-rw-r--r-- | examples/hashsmt/sha1_inversion.cpp (renamed from examples/hashsmt/sha1smt.cpp) | 0 | ||||
-rw-r--r-- | examples/hashsmt/word.cpp | 10 | ||||
-rw-r--r-- | examples/hashsmt/word.h | 3 |
7 files changed, 158 insertions, 16 deletions
@@ -5,12 +5,12 @@ <storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="cdt.managedbuild.toolchain.gnu.base.1461790692" moduleId="org.eclipse.cdt.core.settings" name="Default"> <externalSettings/> <extensions> - <extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/> <extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/> <extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/> <extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/> <extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/> <extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/> + <extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/> </extensions> </storageModule> <storageModule moduleId="cdtBuildSystem" version="4.0.0"> @@ -309,20 +309,21 @@ </profile> </scannerConfigBuildInfo> </storageModule> + <storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/> <storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"> <buildTargets> - <target name="check" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> + <target name="check" path="test/regress" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> <buildCommand>make</buildCommand> <buildArguments>-j10</buildArguments> <buildTarget>check</buildTarget> <stopOnError>true</stopOnError> - <useDefaultCommand>false</useDefaultCommand> + <useDefaultCommand>true</useDefaultCommand> <runAllBuilders>true</runAllBuilders> </target> - <target name="all" path="examples" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> + <target name="all" path="examples/hashsmt" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> <buildCommand>make</buildCommand> - <buildArguments>-j10</buildArguments> - <buildTarget>all</buildTarget> + <buildArguments>-j3</buildArguments> + <buildTarget/> <stopOnError>true</stopOnError> <useDefaultCommand>true</useDefaultCommand> <runAllBuilders>true</runAllBuilders> @@ -334,10 +335,10 @@ <useDefaultCommand>true</useDefaultCommand> <runAllBuilders>true</runAllBuilders> </target> - <target name="check" path="test/regress" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> + <target name="all" path="examples" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> <buildCommand>make</buildCommand> <buildArguments>-j10</buildArguments> - <buildTarget>check</buildTarget> + <buildTarget>all</buildTarget> <stopOnError>true</stopOnError> <useDefaultCommand>true</useDefaultCommand> <runAllBuilders>true</runAllBuilders> @@ -350,7 +351,14 @@ <useDefaultCommand>true</useDefaultCommand> <runAllBuilders>true</runAllBuilders> </target> + <target name="check" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder"> + <buildCommand>make</buildCommand> + <buildArguments>-j10</buildArguments> + <buildTarget>check</buildTarget> + <stopOnError>true</stopOnError> + <useDefaultCommand>false</useDefaultCommand> + <runAllBuilders>true</runAllBuilders> + </target> </buildTargets> </storageModule> - <storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/> </cproject> diff --git a/examples/hashsmt/Makefile.am b/examples/hashsmt/Makefile.am index b385856e7..21726e9a6 100644 --- a/examples/hashsmt/Makefile.am +++ b/examples/hashsmt/Makefile.am @@ -4,18 +4,28 @@ AM_CXXFLAGS = -Wall AM_CFLAGS = -Wall noinst_PROGRAMS = \ - sha1smt + sha1_inversion \ + sha1_collision noinst_DATA = -sha1smt_SOURCES = \ - sha1smt.cpp \ +sha1_inversion_SOURCES = \ + sha1_inversion.cpp \ word.h \ word.cpp \ sha1.hpp -sha1smt_LDADD = \ +sha1_inversion_LDADD = \ @builddir@/../../src/libcvc4.la +sha1_collision_SOURCES = \ + sha1_collision.cpp \ + word.h \ + word.cpp \ + sha1.hpp +sha1_collision_LDADD = \ + @builddir@/../../src/libcvc4.la + + # for installation examplesdir = $(docdir)/$(subdir) examples_DATA = $(DIST_SOURCES) $(EXTRA_DIST) diff --git a/examples/hashsmt/sha1.hpp b/examples/hashsmt/sha1.hpp index 0d4bbbf33..f033822c2 100644 --- a/examples/hashsmt/sha1.hpp +++ b/examples/hashsmt/sha1.hpp @@ -58,7 +58,7 @@ class sha1 public: typedef cvc4_uint32(&digest_type)[5]; public: - sha1(); + sha1(unsigned rounds = 80); void reset(); @@ -78,9 +78,12 @@ private: std::size_t block_byte_index_; std::size_t byte_count_; + + unsigned rounds_; }; -inline sha1::sha1() +inline sha1::sha1(unsigned rounds) +: rounds_(rounds) { reset(); } @@ -141,7 +144,7 @@ inline void sha1::process_block() cvc4_uint32 d = h_[3]; cvc4_uint32 e = h_[4]; - for (std::size_t i=0; i<80; ++i) { + for (std::size_t i=0; i<rounds_; ++i) { cvc4_uint32 f; cvc4_uint32 k; diff --git a/examples/hashsmt/sha1_collision.cpp b/examples/hashsmt/sha1_collision.cpp new file mode 100644 index 000000000..b517f1b03 --- /dev/null +++ b/examples/hashsmt/sha1_collision.cpp @@ -0,0 +1,108 @@ +/********************* */ +/*! \file sha1smt.cpp + ** \verbatim + ** Original author: Dejan Jovanovic + ** Major contributors: Morgan Deters + ** Minor contributors (to current version): none + ** This file is part of the CVC4 project. + ** Copyright (c) 2009-2013 New York University and The University of Iowa + ** 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 <string> +#include <fstream> +#include <iostream> +#include <sstream> + +#include "word.h" +#include "sha1.hpp" +#include "expr/command.h" + +#include <boost/uuid/sha1.hpp> + +using namespace std; +using namespace CVC4; + +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) << expr::ExprSetLanguage(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; + + } catch (CVC4::Exception& e) { + cerr << e << endl; + } +} + + + diff --git a/examples/hashsmt/sha1smt.cpp b/examples/hashsmt/sha1_inversion.cpp index 720ef52b4..720ef52b4 100644 --- a/examples/hashsmt/sha1smt.cpp +++ b/examples/hashsmt/sha1_inversion.cpp diff --git a/examples/hashsmt/word.cpp b/examples/hashsmt/word.cpp index ac9cfbcff..3035983d9 100644 --- a/examples/hashsmt/word.cpp +++ b/examples/hashsmt/word.cpp @@ -24,6 +24,8 @@ #include "word.h" +#include <vector> + using namespace std; using namespace hashsmt; using namespace CVC4; @@ -55,6 +57,14 @@ Expr Word::operator == (const Word& b) const { return em()->mkExpr(kind::EQUAL, d_expr, b.getExpr()); } +Word Word::concat(const Word words[], unsigned size) { + Expr concat = words[0].d_expr; + for(unsigned i = 1; i < size; ++i) { + concat = em()->mkExpr(kind::BITVECTOR_CONCAT, concat, words[i].d_expr); + } + return Word(concat); +} + void Word::print(ostream& out) const { out << CVC4::Expr::setdepth(-1) << d_expr; } diff --git a/examples/hashsmt/word.h b/examples/hashsmt/word.h index f8c03f7b2..dd1c2dc38 100644 --- a/examples/hashsmt/word.h +++ b/examples/hashsmt/word.h @@ -79,6 +79,9 @@ public: /** Returns the comparison expression */ CVC4::Expr operator == (const Word& b) const; + + /** Concatenate the given words */ + static Word concat(const Word words[], unsigned size); }; inline std::ostream& operator << (std::ostream& out, const Word& word) { |