Question

review the paragraph from the code book. ordinarily, if alice wants to use rsa to encrypt a message to bob, she looks up his public key and then applies rsas one - way function to the message. conversely, bob decrypts the ciphertext by using his private key to reverse rsas one - way function. both processes require considerable mathematical manipulation, so encryption and decryption can, if the message is long, take several minutes on a personal computer. which transitional word has the same meaning as on the other hand? ordinarily conversely manipulation encryption

Explanation:

"On the other hand" is a transitional phrase used to present an alternative or contrasting idea. "Conversely" also means in an opposite way or contrasting manner, making it a synonym.

Answer:

B. conversely