EC-Council Certified Encryption Specialist Practice Questions - EC-Council Certified Encryption Specialist (ECES, 212-81) Exam

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The Enigma machine used by Germany in World War II encrypted text by passing it through a series of rotating wheels. What was the primary cryptographic role of the rotors?

They generated a stream of random bits XORed with the plaintext They implemented a polyalphabetic substitution that changed with every keypress They produced a public/private key pair They computed message authentication codes

Correct Answer:

They implemented a polyalphabetic substitution that changed with every keypress

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