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//
// Creator:    http://www.dicelocksecurity.com
// Version:    vers.3.0.0.1
//
// Copyright © 2009-2010 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.
 
#ifndef BASEHASH_HPP
 
#define BASEHASH_HPP
 
#ifdef DICELOCKCIPHER_EXPORTS
   #define CLASS_DECLSPEC    __declspec(dllexport)
#else
   #define CLASS_DECLSPEC    __declspec(dllimport)
#endif
 
#include "baseCryptoRandomStream.h"
 
using namespace DiceLockSecurity;
using namespace DiceLockSecurity::CryptoRandomStream;
 
 
namespace DiceLockSecurity {
 
  namespace Hash {
 
  enum Hashes {
    SHA_1,
    SHA_224,
    SHA_256,
    SHA_384,
    SHA_512,
    RIPEMD_128,
    RIPEMD_160,
    RIPEMD_256,
    RIPEMD_320,
    NumberOfHashes,    // Indication of the number of hash alforithms, any added hash algorithm must be inserted before
    NotDefined,
  };
 
  class BaseHash abstract {
 
    protected:
 
      // Pointer to BaseCryptoRandomStream digest
      BaseCryptoRandomStream* messageDigest; 
 
    public:
 
      // Constructor, default 
      CLASS_DECLSPEC BaseHash();
 
      // Constructor assigning diggest BaseCryptoRandomStream 
      CLASS_DECLSPEC BaseHash(BaseCryptoRandomStream*);
 
      // Destructor
      CLASS_DECLSPEC virtual ~BaseHash();
 
      // Set the Message Digest BaseCryptoRandomStream
      CLASS_DECLSPEC void SetMessageDigest(BaseCryptoRandomStream*);
 
      // Initialize BaseHash
      CLASS_DECLSPEC virtual void Initialize() {};
 
      // Adds the BaseCryptoRandomStream 
      CLASS_DECLSPEC virtual void Add(BaseCryptoRandomStream*) {};
 
      // Finalize the hash
      CLASS_DECLSPEC virtual void Finalize(void) {};
 
      // Gets the hash 
      CLASS_DECLSPEC BaseCryptoRandomStream* GetMessageDigest(void);
 
      // Gets hash length in bits
      CLASS_DECLSPEC virtual unsigned short int GetBitHashLength(void) {return 0;};
 
      // Gets hash length in unsigned chars
      CLASS_DECLSPEC virtual unsigned short int GetUCHashLength(void) {return 0;};
 
      // Gets hash length in unsigned short ints
      CLASS_DECLSPEC virtual unsigned short int GetUSHashLength(void) {return 0;};
 
      // Gets hash length in unsigned long ints
      CLASS_DECLSPEC virtual unsigned short int GetULHashLength(void) {return 0;};
 
      // Gets the type of the object
      CLASS_DECLSPEC virtual Hashes GetType(void) {return NotDefined;};
  };
  }
}
 
#endif