Answer Happy

Q)In the presence of an active adversary (malicious service
agent), a cloud consumer and a cloud vendor want to exchange
messages. But, each message is susceptible to compromise by the
adversary. However, using a cryptographic approach each message has
to be guarded by assuring confidentiality, non-repudiation,
authenticity, and integrity for each message. Describe the message
construction steps and the message exchanging steps from the cloud
consumer to the cloud vendor. Also, describe the message
construction steps and the message exchanging steps from the cloud
vendor to the cloud consumer. Note: you have to use encryption and
decryption algorithms and signature algorithms. You have to
apparently specify the proper keys while using the specified
algorithms.