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DicelockSecurity (version 9.X)

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DiceLock-x 9.0.0.1
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sha512.h (Sha 512 secure hash digest algorithm C++ header source code file) Print E-mail
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//
// Creator:    http://www.dicelocksecurity.com
// Version:    vers.9.0.0.1
//
// Copyright (C) 2009-2013 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.
// 
// DICELOCK IS PROTECTED BY US PATENT 7508945 AND EUROPEAN PATENT 1182777 WHERE APPLICABLE.
//
// LICENSE INFORMATION CAN BE OBTAINED AT CORPORATE WEB SITE
//
 
#ifndef SHA512_HPP
 
#define SHA512_HPP
 
#include "baseHash.h"
 
 
#define SHA512_DIGESTBITS      512  // 512 hash bits
#define SHA512_DIGESTUCHARS      64   // 64  hash unsigned chars
#define SHA512_DIGESTUSHORTS    32   // 32  hash unsigned short ints
#define SHA512_DIGESTULONGS      16   // 16  hash unsigned long ints
#define SHA512_DIGESTULG64S      8    // 8   hash unsigned 64 bits
 
#define SHA512_BLOCKBITS      1024    // 1024 block bits
#define SHA512_BLOCKUCHARS      128     // 128  block unsigned chars
#define SHA512_BLOCKUSHORTS      64      // 64   block unsigned longs ints
#define SHA512_BLOCKULONGS      32      // 32   block unsigned longs ints
#define SHA512_BLOCKULG64S      16      // 16   block unsigned 64 bits
 
#define SHA512_EQUATIONMODULO    896
 
#define SHA512_INITIALS        16
 
#define SHA512_COMPUTECONSTANTS    80
 
#define SHA512_MESSAGESCHEDULE    80
 
#define SHA512_OPERATIONS      80
 
#define SHA512_ShiftRight(x, n)    ((x)>>(n))
#define rotr64(x, n)          (((x) >> n) | ((x) << (64 - n)))
 
 
#define SHA512_SUM_0(x)    (rotr64(x, 28) ^ rotr64(x, 34) ^ rotr64(x, 39))
#define SHA512_SUM_1(x)    (rotr64(x, 14) ^ rotr64(x, 18) ^ rotr64(x, 41))
#define SHA512_SIG_0(x)    (rotr64(x, 1) ^ rotr64(x, 8) ^ SHA512_ShiftRight(x, 7))
#define SHA512_SIG_1(x)    (rotr64(x, 19) ^ rotr64(x, 61) ^ SHA512_ShiftRight(x, 6))
 
namespace DiceLockSecurity {
 
  namespace Hash {
 
  class Sha512 : 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 long ints
      static const unsigned short int    hashULs;
      // Number of hash unsigned 64 bits
      static const unsigned short int    hash64s;
 
      // Number of schedule words
      static const unsigned short int    scheduleNumber;
 
      // Initial hash values of SHA512 
      static const unsigned long long int  initials[SHA512_INITIALS];
 
      // Computational constant values of SHA512 
      static const unsigned long long int  constants[SHA512_COMPUTECONSTANTS];
 
      // Message schedule words for SHA512 
      unsigned long long int        messageSchedule[SHA512_MESSAGESCHEDULE];
 
    protected:
 
      // Number of block bits to compute hash
      static const unsigned short int    hashBlockBits;
      // Number of block unsigned chars to compute hash
      static const unsigned short int    hashBlockUCs;
      // Number of block unsigned short ints to compute hash
      static const unsigned short int    hashBlockUSs;
      // Number of block unsigned long ints to compute hash
      static const unsigned short int    hashBlockULs;
      // Number of block unsigned 64 bit to compute hash
      static const unsigned short int    hashBlock64s;
 
      // Equation modulo constant value
      static const unsigned short int    equationModulo;
 
      // Array to store remaining bytes of intermediate hash operation
      unsigned char              remainingBytes[SHA512_BLOCKUCHARS];
      unsigned long int            remainingBytesLength;
 
      // Total processed message length in bytes
      unsigned long long int        messageBitLengthHigh;
      unsigned long long int        messageBitLengthLow;
 
      // Adds messaage length processed, if it is greater than unsigned long makes use
      // of another unsigned long to store overflow
      void AddMessageLength(unsigned long int byteLength);
 
      // Computes the chunk block of information  
      void Compress(BaseCryptoRandomStream* digest, unsigned char* stream);
 
      // Swap bytes for little endian
      void SwapLittleEndian(void);
 
    public:
 
      // Constructor, default 
      Sha512();
 
      // Destructor
      ~Sha512();
 
      // Initializes common states of Sha1 algorithm
      void Initialize(void);
 
      // Adds the BaseCryptoRandomStream to the hash
      void Add(BaseCryptoRandomStream* stream);
 
      // 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 long ints
      unsigned short int GetULHashLength(void);
 
      // Gets hash length in unsigned 64 bits
      unsigned short int Get64HashLength(void);
 
      // Gets the number of bits in the hash block to be hashed
      unsigned short int GetBitHashBlockLength(void);
 
      // Gets the number of unsigned chars in the hash block to be hashed
      unsigned short int GetUCHashBlockLength(void);
 
      // Gets the number of unsigned short ints in the hash block to be hashed
      unsigned short int GetUSHashBlockLength(void);
 
      // Gets the number of unsigned long ints in the hash block to be hashed
      unsigned short int GetULHashBlockLength(void);
 
      // Gets the type of the object
      Hashes GetType(void);
  };
  }
}
 
#endif