CSCI Final
What is the main problem with simple substitution
It maintains letter and word frequency
Which of the following is an encyrption method using two or more different shifts
Multi-alphabet encryption
Which of the following most accurately defines encryption
Changing a message so it can only be easily read by the intended recipient
WHich of the following is a symmetric key system using 64-bit blocks?
DES
Why is binary mathematical encryption not secure?
It does not change letter or word frequency
Which of the following methods is available as an add-in for most email clients
PGP
What is PGP?
Pretty good privacy, a public key encryption method
Which of the following is the most true regarding binary operations and encyrption?
THey can form a part of viable encryption methods
Which binary mathematical operation can be used for a simple encryption method?
XOR
Which of the following is the oldest encryption method discussed in this text
Caesar cipher