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DicelockSecurity (version 9.X)

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DEA.h (Data Encryption Algorithm DEA with 64 key bits 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) 2012-2013 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 DEA_HPP
 
#define DEA_HPP
 
 
#include "baseBlockCipher.h"
#include "defaultCryptoRandomStream.h"
 
 
// Number of DEA subkeys
#define DEA_SUBKEYS          32
 
// Number of DEA weak keys
#define DEA_WEAK_KEYS        4
// Number of DEA semi-weak keys
#define DEA_SEMI_WEAK_KEYS      12
// Number of DEA possibly weak keys
#define DEA_POSSIBLY_WEAK_KEYS    48
 
 
 
namespace DiceLockSecurity {
 
  namespace Cipher {
    
    namespace SymmetricCipher {
      
      namespace BlockCipher {
 
 
  class DEA : public BaseBlockCipher {
 
    protected:
 
      // Block cipher enumerator name
      static const BlockCiphers        blockCipherType;
 
      // Number of cipher key bits
      static const unsigned short int     deaKeyBits;
      // Number of cipher key unsigned chars
      static const unsigned short int     deaKeyUCs;
      // Number of cipher key unsigned short ints
      static const unsigned short int    deaKeyUSs;
      // Number of cipher key unsigned long ints
      static const unsigned short int    deaKeyULs;
 
      // Number of cipher block bits
      static const unsigned short int    deaBlockBits;
      // Number of cipher block unsigned chars
      static const unsigned short int    deaBlockUCs;
      // Number of cipher block unsigned short ints
      static const unsigned short int    deaBlockUSs;
      // Number of cipher block unsigned long ints
      static const unsigned short int    deaBlockULs;
 
      // DEA operation to be performed
      // true : encryption
      // false: decryption
      bool                  decryptMode;
 
      // DEA SubKeys array
      unsigned long int            deaSubkeys[DEA_SUBKEYS];
 
      // DEA S-Boxes 
      static const unsigned long int    sBox1[];
      static const unsigned long int    sBox2[];
      static const unsigned long int    sBox3[];
      static const unsigned long int    sBox4[];
      static const unsigned long int    sBox5[];
      static const unsigned long int    sBox6[];
      static const unsigned long int    sBox7[];
      static const unsigned long int    sBox8[];
 
      // DEA halves bit swap 
      static const unsigned long int    leftHalves[];
      static const unsigned long int    rightHalves[];
 
      // DEA weak keys
      static const char*          weakKeys[DEA_WEAK_KEYS];
      DefaultCryptoRandomStream*        weakKeysStream[DEA_WEAK_KEYS];
      // DEA semi-weak keys
      static const char*          semiWeakKeys[DEA_SEMI_WEAK_KEYS];
      DefaultCryptoRandomStream*        semiWeakKeysStream[DEA_SEMI_WEAK_KEYS];
      // DEA possibly weak keys
      static const char*          possiblyWeakKeys[DEA_POSSIBLY_WEAK_KEYS];
      DefaultCryptoRandomStream*        possiblyWeakKeysStream[DEA_POSSIBLY_WEAK_KEYS];
 
      // Sets DEA weak keys
      void SetWeakKeys(void);
 
      // Sets DEA semi-weak keys
      void SetSemiWeakKeys(void);
 
      // Sets DEA possibly semi-weak keys
      void SetPossiblyWeakKeys(void);
 
      // Remove DEA weak keys
      void RemoveWeakKeys(void);
 
      // Remove DEA semi-weak keys
      void RemoveSemiWeakKeys(void);
 
      // Remove DEA possibly semi-weak keys
      void RemovePossiblyWeakKeys(void);
 
      // Processes one 64 bit data block 
      void ProcessBlock(BaseCryptoRandomStream* in, BaseCryptoRandomStream* out);
 
    public:
 
      // Constructor, default 
      DEA();
 
      // Destructor
      ~DEA();
 
      // Initialize BaseBlockCipher
      void Initialize();
 
      // Sets object encryption mode
      void SetEncryptionMode(void);
 
      // Sets object decryption mode
      void SetDecryptionMode(void);
 
      // Gets if current object encryption mode is encryption
      bool GetEncryptionMode(void);
 
      // Gets if current object decryption mode is decryption
      bool GetDecryptionMode(void);
 
      // Sets the symmetric key BaseCryptoRandomStream
      void SetSymmetricKey(BaseCryptoRandomStream* key);
 
      // Sets the symmetric key BaseCryptoRandomStream for encryption
      void SetEncryptionSymmetricKey(BaseCryptoRandomStream* key);
 
      // Sets the symmetric key BaseCryptoRandomStream for decryption
      void SetDecryptionSymmetricKey(BaseCryptoRandomStream* key);
 
      // Ciphers the plaintext BaseCryptoRandomStream to ciphertext BaseCryptoRandomStream
      void Cipher(BaseCryptoRandomStream* plaintext, BaseCryptoRandomStream* ciphertext);
 
      // Deciphers the ciphertext BaseCryptoRandomStream to plaintext BaseCryptoRandomStream 
      void Decipher(BaseCryptoRandomStream* ciphertext, BaseCryptoRandomStream* decipheredtext);
 
      // Gets cipher block key length in bits
      unsigned short int GetBitKeyLength(void);
 
      // Gets cipher block key length in unsigned chars
      unsigned short int GetUCKeyLength(void);
 
      // Gets cipher block key length in unsigned short ints
      unsigned short int GetUSKeyLength(void);
 
      // Gets cipher block key length in unsigned long ints
      unsigned short int GetULKeyLength(void);
 
      // Gets cipher block length in bits
      unsigned short int GetBitBlockLength(void);
 
      // Gets cipher block length in unsigned chars
      unsigned short int GetUCBlockLength(void);
 
      // Gets cipher block length in unsigned short ints
      unsigned short int GetUSBlockLength(void);
 
      // Gets cipher block length in unsigned long ints
      unsigned short int GetULBlockLength(void);
 
      // Verifies if key is a weak key
      // true:  weak key
      // false: no weak key
      bool VerifyWeakKey(BaseCryptoRandomStream* key);
 
      // Verifies if key is a semi-weak key
      // true:  semi-weak key
      // false: no semi-weak key
      bool VerifySemiWeakKey(BaseCryptoRandomStream* key);
 
      // Verifies if key is a possibly weak key
      // true:  possibly weak key
      // false: no possibly weak key
      bool VerifyPossiblyWeakKey(BaseCryptoRandomStream* key);
 
      // Gets the type of the object
      BlockCiphers GetBlockCipherType(void);
 
  };
  
    }
  }
  }
}
 
#endif