Enhancing Security of One Time Pad Cipher by Double Columnar Transposition Method

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Provided by: International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Topic: Security
Format: PDF
Cryptography is an art and science of converting original message into non-readable form means 'Secret writing'. Two techniques are used for converting data into non-readable form: transposition technique and substitution technique. One time pad is an example of substitution method. As one time pad has various limitations so this talk will present a perspective on combination of techniques substitution and transposition. A double columnar transposition method is applied on one time pad in order to overcome limitations of one time pad cipher and provide much more secure and strong cipher.
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