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:

Client-Centered Therapy

A psychotherapeutic approach developed by Carl Rogers that emphasizes providing a supportive emotional environment where clients can lead their own path to self-discovery and healing.

Cognitive Therapy

A type of psychotherapy aimed at changing negative patterns of thinking, thereby altering emotions and behaviors.

Self-Fulfillment

The realization or fulfillment of one's talents and potentialities, especially considered as a drive or need present in everyone.

Self-Acceptance

The understanding and embracing of one's own strengths and weaknesses without undue self-criticism.