Bob wants to provide confidentiality, non-repudiation, and message integrity. Bob uses three keys: 1)his private key, 2) Alice's public key, newly created symmetric key I am using SHA-256 m- H(-) KB(•) m Kg(H(m)) + Ks Ks(•) KA(•) K₂ Ks(m, Kg (H(m)) + KA(Ks) Internet 2. How can Bob encrypt the data to ensure the confidentiality, non-repudiation, and integrity of the message? (Please describe the detailed steps and show your work) 3. How can Alice decrypt the data to validate the non-repudiation and integrity of the message? (Please describe the detailed steps and show your work)

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