Bob Uses His Own Private Key to Encrypt the Message

question 27

Short Answer

Bob uses his own private key to encrypt the message.When Alice receives the ciphertext she finds that she can decrypt it with Bob's public key, thus proving that the message must have been encrypted by Bob.No one else has Bob's private key and therefore no one else could have created a ciphertext that could be decrypted with Bob's public key.Therefore the entire encrypted message serves as a _________ .

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Definitions:

Strict Liability

Refers to legal responsibility for damages or injury, even if the person found strictly liable was not at fault or negligent.

Building Construction

The process involving materials, design, and planning to create a structure for a specific use or purpose.

Selling

The process of exchanging goods or services for money or other compensation.

Transporting Passengers

The act of moving individuals from one location to another, typically as a service offered by vehicles such as buses, trains, airplanes, and taxis.