Explain the strengths and weaknesses of using symmetric encryption, like AES, versus a public-key cryptosystem, like RSA

What will be an ideal response?


Symmetric algorithms, like AES, are fast to perform encryption and decryption,
but they have a setup challenge in that Alice and Bob have to figure out some way to share
the secret key. In a public-key cryptosystem, there is no problem in setting up any secret
key, but the encryption and decryption algorithms are slower.

Computer Science & Information Technology

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Which of the following statements is false?

a. You cannot prevent client code from creating objects of a class. b. One common use of a private constructor is sharing initialization code among a class’s other constructors. c. Another common use of private constructors is to force client code to use so-called “factory methods” to create objects. d. A factory method is a public static method that creates and initializes an object of a specified type (possibly of the same class), then returns a reference to it.

Computer Science & Information Technology

When the MessageBox action is executed, the macro is paused so a message can be displayed. Click ________ in order for the macro to continue

A) OK B) Cancel C) Go D) Continue

Computer Science & Information Technology

Which of the following ensures that messages originate from their advertised source?

A. Sender authentication B. Message integrity C. Message confidentiality D. Message availability

Computer Science & Information Technology

Which of the following is not a forbidden character for filenames of web pages?

A. * B. & C. ^ D. _

Computer Science & Information Technology