Consider an ElGamal scheme with a common prime (q=71) and a primitive root (alpha=7). a. If (mathrm{B})

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Consider an ElGamal scheme with a common prime $q=71$ and a primitive root $\alpha=7$.

a. If $\mathrm{B}$ has public key $Y_{B}=3$ and $\mathrm{A}$ chose the random integer $k=2$, what is the ciphertext of $M=30$ ?

b. If A now chooses a different value of $k$ so that the encoding of $M=30$ is $C=\left(59, C_{2}ight)$, what is the integer $C_{2}$ ?

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Cryptography And Network Security

ISBN: 9780136097044

5th Edition

Authors: William Stallings

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Question Posted: Jan 27, 2024 12:01 PM

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Consider an ElGamal scheme with a common prime (q=71) and a primitive root (alpha=7). a. If (mathrm{B})

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Cryptography And Network Security

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