Side Channel Analysis of International Data Encryption Algorithm (IDEA)
The International Data Encryption Algorithm (IDEA)is a symmetric block Cipher with 64 block size and a 128-bit secret key. This algorithm maps a 64-bits plaintext into 64-bits ciphertext in 8.5 encryption rounds. This algorithm has so far been resistant against most known attacks. In this paper, the resistance of IDEA algorithm against correlation power side channel attack is evaluated. By implementing this algorithm on PIC micro controller platform, several samples of power consumption were measured during processing. The results of analyzing the measured samples indicate the resistance of the algorithm to the correlation power side channel analysis.
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