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In SHA-3, which step function does the operation L[2,3] <- L[2,3] XOR NOT(L[3,3]) AND L[4,3] represent?

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In SHA-3, which step function does the operation L[2,3] <- L[2,3]  XOR NOT(L[3,3]) AND L[4,3] represent?

(a) Theta

(b) Rho

(c) Pi

(d) Chi

This question was addressed to me during an online exam.

My doubt stems from Secure Hash Algorithms (SHA) topic in chapter Other Public Key Cryptosystems and Cryptographic Hash Functions of Cryptograph & Network Security

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Best answer
The correct option is (d) Chi

Best explanation: The above operation represents the chi step function.

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