Author Question: Symmetric key cryptography is also known as: A) public key cryptography. B) secret key ... (Read 139 times)

strangeaffliction · **on:** Jul 7, 2018

Symmetric key cryptography is also known as:

A) public key cryptography.
B) secret key cryptography.
C) PGP.
D) PKI.

Question 2

All the following statements about symmetric key cryptography are true except:

A) in symmetric key cryptography, both the sender and the receiver use the same key to encrypt and decrypt a message.
B) the Data Encryption Standard is a symmetric key encryption system.
C) symmetric key cryptography is computationally slower.
D) symmetric key cryptography is a key element in digital envelopes.