a. Why is encryption usually attractive for sensitive data from a legal standpoint? b. How long must an encryption key be to be considered strong today? c. What happens if the encryption key is lost?...

a. Why is encryption usually attractive for sensitive data from a legal standpoint? b. How long must an encryption key be to be considered strong today? c. What happens if the encryption key is lost? d. How do companies address this risk? e. Why is entrusting users to do key escrow risky? f. In what sense is encryption usually transparent to the user? g. Why is this attractive? h. Why is this dangerous? i. What must users do to address this danger? j. How does encryption make file sharing more difficult?