For message-by-message authentication, each message must contain ...

[rosent76]

For message-by-message authentication, each message must contain an electronic signature.
 
  Indicate whether the statement is true or false.

Question 2

To be strong, ________ keys need to be longer than ________ keys.
 
  A) public, symmetric
  B) symmetric, public
  C) Public and symmetric keys of about the same length have about equal strength.
  D) None of the above

[kxciann]

Answer to Question 1

Answer: TRUE

Answer to Question 2

Answer: A