Ramasamy Balasubramanian

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A scheme that integrates digital signature and data hiding to provide hi–tech authentication for palette images is proposed in this paper. The scheme extracts digital signature from the original palette image and embeds it back into the same palette image, avoiding additional signature file. Digital signature generation is employed using elliptic curve(More)
Lightweight cryptography is an interesting phenomenon that provides the perfect trade-off among security, higher throughput, low-power consumption, and compactness. Designing lightweight cryptography is a challenging issue. In this paper, Mixcolumn operation in the Advanced Encryption Standard (AES) is modified based on cellular automata functions. AES(More)
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