13. RSA (Rivest–Shamir–Adleman) is one of public-key cryptosystems and is widely used for secure data transmission. In RSA, if public key (e, N) = (5, 21), private key (d, N) = (5, 21), and ciphertext is 11, what is the corresponding plaintext?
(A) 7
(B) 4
(C) 9
(D) 5
(E) 2

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統計: A(0), B(0), C(0), D(1), E(0) #2349688

詳解 (共 1 筆)

#4483644

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