International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 37 - Number 5 |
Year of Publication: 2012 |
Authors: Dr. G. Geetha, K. Thamizhchelvy |
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Dr. G. Geetha, K. Thamizhchelvy . Design of Digital Signature Algorithm by Fractals and Chaos Theory. International Journal of Computer Applications. 37, 5 ( January 2012), 50-57. DOI=10.5120/4608-6588
Message Authentication Code is a function of the message and a secret key that produces a fixed-length value that serves as the authenticator. MAC provides authentication and confidentiality. This authentication technique does not include measures to counter repudiation by the source i.e. it does not provide digital signature. We propose a new Message authentication Image (MAI) Algorithm that provides confidentiality, authentication and digital signature. It uses Cryptographic and Steganographic ideas to conceal the data in the image. MAI is generated by using fractals. This approach explores the main feature of fractal image generated by Iterated Function System (IFS) techniques.