An Approach of Bitwise Private-Key Encryption Technique Based on Multiple Operators and Numbers of 0 and 1 Counted From Binary Representation of Plain Text‘s Single Character
Ramkrishna Das1, Saurabh Dutta2

1Ramkrishna Das, Department of Computer Applications, Haldia Institute of Technology, Haldia (West Bengal), India.
2Saurabh Dutta, Department of Computer Applications, Dr. B.C. Roy Engineering College, Durgapur (West Bengal), India.
Manuscript received on 10 May 2013 | Revised Manuscript received on 18 May 2013 | Manuscript Published on 30 May 2013 | PP: 94-98 | Volume-2 Issue-6, May 2013 | Retrieval Number: F0803052613/13©BEIESP
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Abstract: Private-key cryptography is a cryptographic system that uses the same secret key to encrypt and decrypt messages. The Existing Private-key cryptography systems are complex and not full proof in respect of security concern as the distribution of the private-key without interpretation is very hard to achieve. Here, we have proposed an idea to increase the security of Private-key encryption technique. We have focused on the secret procedure to retrieve secret value from the private-key rather than securing the actual private-key value. The encryption is done by the secret value derived from the private-key. The secret value is being derived by making arithmetic operation between the user defined base value and a decimal value. That decimal value is derived by performing arithmetic operation between number of ‘0’ and number of ‘1’counted from 8 bit representation of a plain text’s character. The operators are being supplied by the user. As the numbers of ‘0’ and ‘1’ are different for several numbers of character, so we get different secret private-key value for several numbers of character in the plain text. Thus the security is increased.
Keywords: Arithmetic Operators, Counting of ‘0’ and ‘1’ From Binary Representation of A Character, Private-Key Encryption, Stream Cipher.

Scope of the Article: Encryption Methods and Tools