Square Grid Transposition Cipher
Ramesh Yejji · 2013
The process of conversion of data into a form is called a encryption. It cannot be easily understood by unauthorized people. Decryption is the reverse process of encryption that is the encrypted data back into its original form. In real world many techniques are used for encryption and decryption of data like audio, video ,image and text. RSA (Rivest, Shamir, Aldeman) encryption technique has been used for encryption of text using data encryption technique with square grid transposition with key wrapping[2,3]. The binary data of file is divided into equal sized blocks called grid. The bit streams of each grid are taken and grid transposition technique is applied over it .A key of 160 bits is used by DSA algorithm for the grid size 32X32. In this paper work, a modified approach for the encryption of the text is used called the DSA (Digital Signature Algorithm) encryption algorithm.