In the RSA algorithm, the public key is transmitted to all MSs through the air by the BS. How is its security ascertained?
What will be an ideal response?
Unlike in the classic symmetrical key cryptosystem with a single key being used for both encryption at the sender and decryption at the receiver, RSA algorithm has a pair of different keys, one is the public key and the other is the private key. A message encrypted by the public key only can be decrypted by the corresponding private key. As long as the private key is kept secret, even though the public key of a MS is known by others, the BS still can authenticate a MS securely.
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