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| Title: | Novel Modified Hill Cipher Algorithm |
| Authors: | Acharya, B
Rath, G S
Patra, S K |
| Keywords: | Hill Cipher
Encryption
Decryption
Self Invertible Matrix
Modified Hill Cipher |
| Issue Date: | 2008 |
| Citation: | Proceedings of the International Conference on Emerging Technologies and Applications in Engineering Technology and Sciences, Gujarat, 13-14 Jan 2008, P 126-130 |
| Abstract: | The Hill cipher algorithm is one of the symmetric key
algorithms that have several advantages in data
encryption. However, a drawback of this algorithm is
that the inverse of the matrix used for encrypting the
plaintext does not always exist. So, if the matrix is not
invertible, the encrypted text cannot be decrypted. This
paper presents a variant of the Hill cipher that
overcomes this disadvantage. The proposed technique
adjusts the encryption key to form a different key for
each block encryption. The proposed variant yields
higher security compared to the original one. Also in
this paper, a method of generating self-invertible matrix
for Hill Cipher algorithm has been proposed. In the
self-invertible matrix generation method, the matrix
used for the encryption is itself self-invertible. So, at the
time of decryption, we need not to find inverse of the
matrix. Moreover, this method eliminates the
computational complexity involved in finding inverse of
the matrix whil... |
| Description: | Copyright for the article belongs to proceedings publisher |
| URI: | http://hdl.handle.net/2080/641 |
| Appears in Collections: | Conference Papers
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Files in This Item:
| File |
Description |
Size | Format |
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| bacharya-conf2-2008.pdf | | 162Kb | Adobe PDF | View/Open |
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