To solve the problem of message communication over an insecure channel
we have several encryption and decryption standards such as DES (Data
Encryption Standard), AES (Advanced Encryption Standard) and EES (Escrowed
Encryption Standard) which were widely used in now a days.
Due to advanced hacking
technics in computers and embedded systems these standards seem not to be as
secure and fast. We proposed in this paper a fast and secure encryption
algorithm using substitution mapping, translation and transposing operations.
We propose a technique that the encryption and decryption procedures are
much simpler, and consequently, much faster and the security level is much
higher. The proposed algorithm is compared with popular encryption and
decryption algorithms and is implemented on ARM7 (LPC2148) controller.
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