(1 point) Alice and Bob are using the ElGamal cipher with the parameters p= 79 and a = 3. Alice makes the mistake of usi

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1 Point Alice And Bob Are Using The Elgamal Cipher With The Parameters P 79 And A 3 Alice Makes The Mistake Of Usi 1 (29.59 KiB) Viewed 41 times

(1 point) Alice and Bob are using the ElGamal cipher with the parameters p= 79 and a = 3. Alice makes the mistake of using the same ephemeral key for two plaintexts, 21 and 22. The eavesdropper Eve suspects that x1 = 42. She sees the two ciphertexts y1 = 42 and y2 = 55 in transit; these are the encryptions of 21 and 22, respectively. a) What is the masking key km? b) What is the plaintext 32?