In Elgamal cryptosystem, given the prime p=31. What is the respective plaintext character for C = (27, 20)?
In Elgamal cryptosystem, given the prime p=31. What is the respective plaintext character for C = (27, 20)? Correct Answer H
The Common factor for the calculation of C2 is e7 mod 31 = 257 mod 31 = 25. C = 17, 20); P = 20 X (1710)-1 mod 31 = 07; “07” = “H”.
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Feb 20, 2025



