10.15 This problem performs elliptic curve encryption/decryption using the scheme outlined in Section 10.4. The cryptosystem parameters are E11(1, 6) and G = (2, 7). B's private key is nB = 7. a. Find B's public key PB. b. A wishes to encrypt the message Pm = (10, 9) and chooses the random value k = 3. Determine the ciphertext Cm. c. Show the calculation by which B recovers Pm from Cm. | |
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