Friday, 15 December 2017

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DicelockSecurity (version 9.X)

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md2.h (Message Digest 2 hash digest algorithm C++ header source code file) Print E-mail
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//
//  md2.h
//  XDiceLockCipher
//
//  Created by svp on 11/5/12.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//
 
//
// Creator:    http://www.dicelocksecurity.com
// Version:    vers.8.0.0.1
//
// Copyright (C) 2012 DiceLock Security, LLC. All rights reserved.
//
//                               DISCLAIMER
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED 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
// REGENTS 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.
// 
// DICELOCK IS A REGISTERED TRADEMARK OR TRADEMARK OF THE OWNERS.
// 
 
#ifndef XDiceLockCipher_md2_h
#define XDiceLockCipher_md2_h
 
#include "baseHash.h"
 
 
#define  MD2_BLOCK_LENGTH   16   // Size in bytes of the input block to the tranformation algorithm
 
// Number of hash bits
#define  MD2_DIGESTBITS    128
// Number of hash unsigned chars
#define  MD2_DIGESTUCHARS  16
// Number of hash unsigned short ints
#define  MD2_DIGESTUSHORTS  8
// Number of hash unsigned ints
#define  MD2_DIGESTULONGS  4
 
 
namespace DiceLockSecurity {
    
    namespace Hash {
        
        
        class Md2 : public BaseHash {
            
    private:
            
      // Hash Algorithms Class enumerator name
      static const Hashes  hashName;
            
      // Number of hash bits
      static const unsigned short int hashBits;
      // Number of hash unsigned chars
      static const unsigned short int hashUCs;
      // Number of hash unsigned short ints
      static const unsigned short int hashUSs;
      // Number of hash unsigned ints
      static const unsigned short int hashULs;
      // Number of hash unsigned 64 bits
      static const unsigned short int hash64s;
            
      unsigned int checksum[MD2_BLOCK_LENGTH];
            
      unsigned int count;        //Number of bytes modulo 16
      unsigned char buffer[MD2_BLOCK_LENGTH];
      // 3 * 128 bits work buffer = 3 * 16 x 8-bit entities. Uses the
      // lower byte of each int. The first chunck of 128-bit is the context.
      unsigned int X[3 * MD2_BLOCK_LENGTH];
            
      // Permutation of 0..255 constructed from the digits of pi.
      static const unsigned int S[256];
            
    protected:
            
      // Handles BaseCryptoRandomStream on input
      void Transform(BaseCryptoRandomStream*, unsigned int);
            
      // Handles unsigned char array on input
      void Transform(unsigned char*);
            
      // Handles unsigned int array on input
      void Transform(unsigned int*);
            
    public:
            
      // Constructor, default 
      Md2();
            
      // Destructor
      ~Md2();
            
      // Initializes common states of Md2 algorithm
      void Initialize(void);
            
      // Adds the BaseCryptoRandomStream stream to the hash
      void Add(BaseCryptoRandomStream*);
            
      // Finalize the hash
      void Finalize(void);
            
      // Gets hash length in bits
      unsigned short int GetBitHashLength(void);
            
      // Gets hash length in unsigned chars
      unsigned short int GetUCHashLength(void);
            
      // Gets hash length in unsigned short ints
      unsigned short int GetUSHashLength(void);
            
      // Gets hash length in unsigned ints
      unsigned short int GetULHashLength(void);
            
      // Gets hash length in unsigned 64 bits
      unsigned short int Get64HashLength(void);
            
      // Gets the type of the object
      Hashes GetType(void);
        };
    }
}
 
#endif