GENERALIZED SELF-INVERTIBLEKEY GENERATION ALGORITHM BY USING REFLECTION MATRIX IN HILL CIPHER AND AFFINE HILL CIPHER

M Vara Prasad
2016 International Journal of Pharmacy & Technology   unpublished
In this paper discover the idea of generating generalizedself-invertible reflection matrix key in Hill Cipher and Affine Hill Cipher. The inverse of the matrix used for encrypting the plaintext does not consistently exist. So, if the matrix is not invertible, the encrypted cipher text content cannot be decrypted. In the generalized self-invertible matrix generation method, the key matrix used for the encryption is itself self-invertible. So, we need not find the inverse of the matrix at the
more » ... of decryption. Moreover, this method eliminates the computational complexity involved in finding the inverse of the matrix while decryption and this method more secure due togenerate generalized self-invertible key matrix using a homogeneous linear equation under modulation of a prime number.
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