Question: Alice and Bob use elliptic curve cryptography with parameters E 2 5 7 ( 0 , - 4 ) and G = ( 2 ,

Alice and Bob use elliptic curve cryptography with parameters E257(0,-4) and G=(2,2) to secure their communications. Alices private key is 41 and Bobs private key is 101?
If Alice and Bod use the elliptic curve for key exchange. Calculate the shared key at Bob?
What is the ciphertext if Alice wants to send an encrypted message of (112,26) to Bob? Alice selected his private key as the random integer to encrypt the message.
Hints.
41(2,2)=(136,128)
101(2,2)=(197,167)
41(197,167)=(68,84)
(112,26)+(68,84)=(246,174) in cryptology

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