Which of the following statements related to a private key cryptosystem is FALSE?

A. The key used for decryption is known to the sender
B. Data Encryption Standard (DES) is a typical private key cryptosystem
C. Two different keys are used for the encryption and decryption
D. The encryption key should be secure

C. Two different keys are used for the encryption and decryption

Computer Science & Information Technology

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Instead of maintaining a local server, a company may decide to use a(n) ________ server that is maintained by a hosting company and is connected to the network via the Internet

A) cloud B) database C) print D) application

Computer Science & Information Technology

Identify the harmony scheme for each of these sets of colors. To find the answer, it may help to convert the colors to a different color model or to refer to a color wheel. You can do this by either using either the “Color Spaces” software or by accessing the color selection dialog in a commercial paint package.

A. HSB values: d. RGB values: 0 75 80 255 255 204 0 75 52 54 53 154 120 100 60 255 0 0 120 37 80 153 153 204 120 16 90 62 62 128 b. HSB values: e. RGB values: 41 100 100 64 177 255 30 50 80 0 154 255 30 67 60 99 193 255 30 35 85 0 0 0 62 20 100 255 255 255 C. HSB vALUES: f. RGB values: 23 90 100 53 53 204 23 50 100 255 246 148 23 38 100 212 79 98 23 93 38 60 60 145 23 20 0 232 214 21

Computer Science & Information Technology