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arrow XDiceLock 8.0.0.1 arrow ripemd256.cpp
ripemd256.cpp (Ripemd 256 hash digest algorithm C++ source code file) Print E-mail
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//
//  ripemd256.cpp
//  XDiceLock
//
//  Created by DiceLock on 1/4/12.
//  Copyright (c) 2009-2012 DiceLock Security, LLC. All rights reserved.
//
 
//
// Creator:    http://www.dicelocksecurity.com
// Version:    vers.8.0.0.1
//
// Copyright (c) 2009-2012 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.
// 
 
#include "ripemd256.h"
 
 
namespace DiceLockSecurity {
  
    namespace Hash {
        
        // Hash Algorithms Class enumerator name
        const Hashes Ripemd256::hashName = RIPEMD_256;
        
        // Number of hash bits
        const unsigned short int Ripemd256::hashBits = 256;
        // Number of hash unsigned chars
        const unsigned short int Ripemd256::hashUCs = 32;
        // Number of hash unsigned short ints
        const unsigned short int Ripemd256::hashUSs = 16;
        // Number of hash unsigned ints
        const unsigned short int Ripemd256::hashULs = 8;
        
        // Additional initial states of Ripemd 256 algorithm
        const unsigned int Ripemd256::inistate4 = 0x76543210;
        const unsigned int Ripemd256::inistate5 = 0xFEDCBA98;
        const unsigned int Ripemd256::inistate6 = 0x89ABCDEF;
        const unsigned int Ripemd256::inistate7 = 0x01234567;
        
        // Constructor
        Ripemd256::Ripemd256() {
        }
        
        // Destructor
        Ripemd256::~Ripemd256() {
        }
        
        // Initializes state of Ripmed 256 algorithm
        void Ripemd256::Initialize() {
            
            this->BaseRipemd::Initialize();
            this->messageDigest->SetULPosition(4, inistate4);
            this->messageDigest->SetULPosition(5, inistate5);
            this->messageDigest->SetULPosition(6, inistate6);
            this->messageDigest->SetULPosition(7, inistate7);
        }
        
        // Computes the 64 byte chunk of stream information 
        void Ripemd256::Compress(unsigned int* stream) {
            unsigned int a1 = this->messageDigest->GetULPosition(0);
            unsigned int b1 = this->messageDigest->GetULPosition(1); 
            unsigned int c1 = this->messageDigest->GetULPosition(2); 
            unsigned int d1 = this->messageDigest->GetULPosition(3); 
            unsigned int a2 = this->messageDigest->GetULPosition(4);
            unsigned int b2 = this->messageDigest->GetULPosition(5);
            unsigned int c2 = this->messageDigest->GetULPosition(6);
            unsigned int d2 = this->messageDigest->GetULPosition(7);
            unsigned int temp;
            Transform_F0(&a1, &b1, &c1, &d1, stream);
            Transform_I5(&a2, &b2, &c2, &d2, stream);
            temp = a1;
            a1 = a2;
            a2 = temp;
            Transform_G1(&a1, &b1, &c1, &d1, stream);
            Transform_H6(&a2, &b2, &c2, &d2, stream);
            temp = b1;
            b1 = b2;
            b2 = temp;
            Transform_H2(&a1, &b1, &c1, &d1, stream);
            Transform_G7(&a2, &b2, &c2, &d2, stream);
            temp = c1;
            c1 = c2;
            c2 = temp;
            Transform_I3(&a1, &b1, &c1, &d1, stream);
            Transform_F9(&a2, &b2, &c2, &d2, stream);
            temp = d1;
            d1 = d2;
            d2 = temp;
            this->messageDigest->SetULPosition(0, this->messageDigest->GetULPosition(0) + a1);
            this->messageDigest->SetULPosition(1, this->messageDigest->GetULPosition(1) + b1);
            this->messageDigest->SetULPosition(2, this->messageDigest->GetULPosition(2) + c1);
            this->messageDigest->SetULPosition(3, this->messageDigest->GetULPosition(3) + d1);
            this->messageDigest->SetULPosition(4, this->messageDigest->GetULPosition(4) + a2);
            this->messageDigest->SetULPosition(5, this->messageDigest->GetULPosition(5) + b2);
            this->messageDigest->SetULPosition(6, this->messageDigest->GetULPosition(6) + c2);
            this->messageDigest->SetULPosition(7, this->messageDigest->GetULPosition(7) + d2);
        }
        
        // Gets hash length in bits
        unsigned short int Ripemd256::GetBitHashLength(void) {
            
            return this->hashBits;
        }
        
        // Gets hash length in unsigned chars
        unsigned short int Ripemd256::GetUCHashLength(void) {
            
            return this->hashUCs;
        }
        
        // Gets hash length in unsigned short ints
        unsigned short int Ripemd256::GetUSHashLength(void) {
            
            return this->hashUSs;
        }
        
        // Gets hash length in unsigned ints
        unsigned short int Ripemd256::GetULHashLength(void) {
            
            return this->hashULs;
        }
        
        // Gets the type of the object
        Hashes Ripemd256::GetType(void) {
            
            return this->hashName;
        }
    }
}