Double encryption in a public key system can provide
a. only confidentiality
b. only identity verification
c. both confidentiality and identity verification
d. none of the above
c. both confidentiality and identity verification
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Answer the following statements true (T) or false (F)
1. As with any block cipher, AES can be used to construct a message authentication code, and for this, only decryption is used. 2. The inverse add round key transformation is identical to the forward add round key transformation because the XOR operation is its own inverse. 3. The Rijndael developers designed the expansion key algorithm to be resistant to known cryptanalytic attacks. 4. The transformations AddRoundKey and InvMixColumn alter the sequence of bytes in State. 5. AES can be implemented very efficiently on an 8-bit processor.
Internet connection speed is measured in ____.
A. mph B. Mbps C. ms D. mps
Convert the list-of-names application from Exercise 10 in the previous chapter into an applet.
What will be an ideal response?
When checking spelling in a document, a word that is not found in the Microsoft dictionary is underlined with a ________
A) wavy red line. B) wavy blue line. C) wavy yellow line. D) wavy green line.