DPS915/M-N-M

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Team Members

1. Muhammad Ahsan
2. Nitin Prakash Panicker
3. Mohamed Baig

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Potential Projects

Projects

Project Name	Project Description	Status
C Compiler	Take the compilation process and transfer it to the GPU	failed
Galactic Collision Simulation	A 2D simulation of two galaxies colliding, with fully simulated gravity effects.	cannot benefit from parallel computing,already fast enough
Isomorphism of graphs	Check if two graphs are isomorphic in nature. This is a very straight forward program.	failed
Image Processing	Mathematical operations applied to images for colour negation, rotation, blurring effects, etc.	scrapped
Facial Recognition system	Speed up time taken to match face with database	already CUDA enabled
Steganography	Speed up the process of encrypting one type of file into another	Evaluated
Prime number generator	Generate prime numbers	Evaluated

Progress

Assignment 1

Mohamed Baig: Steganography using Steghide

Steghide has certain dependencies that it uses to complete its function.

Dependencies:

Makefile changes made

• libmash
• libcrypt
• libjpeg
• zlib

• Ran the Configure file to see if I have all the Dependencies
• Installed the all the dependencies
• Ran Configure again to generate Makefile in the src folder
• Altered the Makefile to enable profiling
• Altered some source files to avoid errors

AuSampleValues.cc

#include "AuSampleValues.h"

// AuMuLawSampleValue
template <> //My change
const BYTE AuMuLawSampleValue::MinValue = 0 ;
template <> //My change
const BYTE AuMuLawSampleValue::MaxValue = BYTE_MAX ;

// AuPCM8SampleValue
template <> //My change
const SBYTE AuPCM8SampleValue::MinValue = SBYTE_MIN ;
template <> //My change
const SBYTE AuPCM8SampleValue::MaxValue = SBYTE_MAX ;

// AuPCM16SampleValue
template <> //My change
const SWORD16 AuPCM16SampleValue::MinValue = SWORD16_MIN ;
template <> //My change
const SWORD16 AuPCM16SampleValue::MaxValue = SWORD16_MAX ;

// AuPCM32SampleValue
template <> //My change
const SWORD32 AuPCM32SampleValue::MinValue = SWORD32_MIN ;
template <> //My change
const SWORD32 AuPCM32SampleValue::MaxValue = SWORD32_MAX ;

AuData.h

#ifndef SH_AUDATA_H
#define SH_AUDATA_H

#include "BinaryIO.h"
#include "AudioData.h"

// AuMuLawAudioData
typedef AudioDataImpl<AuMuLaw,BYTE> AuMuLawAudioData ;
template <> //My change
inline BYTE AuMuLawAudioData::readValue (BinaryIO* io) const { return (io->read8()) ; }
template <> //My change
inline void AuMuLawAudioData::writeValue (BinaryIO* io, BYTE v) const { io->write8(v) ; }

// AuPCM8AudioData
typedef AudioDataImpl<AuPCM8,SBYTE> AuPCM8AudioData ;
template <> //My change
inline SBYTE AuPCM8AudioData::readValue (BinaryIO* io) const { return ((SBYTE) io->read8()) ; }
template <> //My change
inline void AuPCM8AudioData::writeValue (BinaryIO* io, SBYTE v) const { io->write8((BYTE) v) ; }

// AuPCM16AudioData
typedef AudioDataImpl<AuPCM16,SWORD16> AuPCM16AudioData ;
template <> //My change
inline SWORD16 AuPCM16AudioData::readValue (BinaryIO* io) const { return ((SWORD16) io->read16_be()) ; }
template <> //My change
inline void AuPCM16AudioData::writeValue (BinaryIO* io, SWORD16 v) const { io->write16_be((UWORD16) v) ; }

// AuPCM32AudioData
typedef AudioDataImpl<AuPCM32,SWORD32> AuPCM32AudioData ;
template <> //My change
inline SWORD32 AuPCM32AudioData::readValue (BinaryIO* io) const { return ((SWORD32) io->read32_be()) ; }
template <> //My change
inline void AuPCM32AudioData::writeValue (BinaryIO* io, SWORD32 v) const { io->write32_be((UWORD32) v) ; }

#endif // ndef SH_AUDATA_H

• The result of embedding kilobytes of text data into an image

Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total          
 time   seconds   seconds    calls   s/call   s/call  name   
 13.38      0.21     0.21  1318276     0.00     0.00  Selector::idxX(unsigned int, unsigned int, unsigned int*) const
 11.47      0.39     0.18  4054789     0.00     0.00  Vertex::getDegree() const
  9.55      0.54     0.15   659139     0.00     0.00  Selector::calculate(unsigned int)
  7.64      0.66     0.12   659141     0.00     0.00  JpegFile::getEmbeddedValue(unsigned int) const
  7.01      0.77     0.11   659139     0.00     0.00  __gnu_cxx::hashtable<std::pair<unsigned int const, unsigned int>, unsigned int, __gnu_cxx::hash<unsigned int>, std::_Select1st<std::pair<unsigned int const, unsigned int> >, std::equal_to<unsigned int>, std::allocator<unsigned int> >::resize(unsigned long)
  6.37      0.87     0.10   328293     0.00     0.00  JpegFile::getSampleValue(unsigned int) const
  5.73      0.96     0.09        1     0.09     0.09  Selector::~Selector()
  3.82      1.02     0.06        1     0.06     0.09  JpegFile::read(BinaryIO*)

• The result of attempting to embed 1.7 GB of data into an image

Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total          
 time   seconds   seconds    calls   s/call   s/call  name   
 54.43     21.52    21.52 1192388169     0.00     0.00  BitString::_append(bool)
 16.79     28.15     6.64 593200712     0.00     0.00  BitString::operator[](unsigned long) const
  9.30     31.83     3.68 74898412     0.00     0.00  BitString::append(unsigned char, unsigned short)
  4.78     33.72     1.89        3     0.63     6.41  BitString::append(BitString const&)
  3.50     35.10     1.39                             BitString::BitString(unsigned long)
  1.91     35.86     0.76                             BitString::clear()
  1.29     36.37     0.51        1     0.51    37.26  Embedder::Embedder()
  1.20     36.84     0.48 37823336     0.00     0.00  BinaryIO::eof() const

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