Compare and contrast block cipher with stream cipher.
What will be an ideal response?
The two major types of encryption algorithms are block ciphers and stream ciphers. A block cipher encrypts groups of text at a time. For example, a block cipher encrypts the whole word cat instead of encrypting each letter. A stream cipher encrypts cleartext one bit at a time to produce a stream of encrypted ciphertext, so the letters c, a, and t in cat are encrypted separately.
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Which of the following statements is true?
a. The catch block contains the code that might throw an exception. b. The try block contains the code that handles the exception if one occurs. c. You can have many catch blocks to handle different types of exceptions. d. When a try block terminates, any variables declared in the try block are preserved.
It is a UML convention to denote the name of an abstract class in ________.
a. bold. b. italics. c. a diamond. d. there is no convention of the UML to denote abstract classes—they are listed just as any other class.
You can buy or rent movies and episodes of television shows using the Windows 10 ________ app
Fill in the blank(s) with correct word
Show that if longitudinal parity is used as an error detection code, values in a database can still be modified without detection. (Longitudinal parity is computed for the n-th bit of each byte; that is, one parity bit is computed and retained for all bits in the 0th position, another parity bit for all bits in the 1st position, etc.)
What will be an ideal response?