Users need to exchange a shared secret to begin communicating securely. Which of the following
is another name for this symmetric key?
A.
Session Key
B.
Public Key
C.
Private Key
D.
Digital Signature
Explanation:
Symmetric algorithms require both ends of an encrypted message to have the same key and
processing algorithms. Symmetric algorithms generate a secret key that must be protected. A
symmetric key, sometimes referred to as a secret key or private key, is a key that isn’t disclosed to
people who aren’t authorized to use the encryption system.
Yes, the key should be kept private, but isn’t the term “private” usually reserved for the public/private key pair in an asymetric key exchange? I believe that the correct answer should be A)Session Key. This very same question is in the SY0-301 (v.3) #343. The answer there is Session Key as well.