1					15
		13/14									17
2
											3
																							19
								4
								16
							5
														18
		7												6
12
						8
9
		10
		11

Across

1. A color scheme that represents different intensities of gray, ranging from black to white.

2. A type of attack where the cryptanalyst has access to both the plaintext and its corresponding ciphertext

3. The practice of securing communication from unauthorized access.

4. A polyalphabetic cipher that uses a keyword consisting of a repeating pattern of letters to encrypt a message.

5. The range of frequencies a microphone can accurately capture and reproduce.

6. The mathematical operation of combining two or more numbers to obtain a total.

7. The number of colors that can be represented in an image or video.

8. The electrical power required by condenser microphones to operate, typically provided by an audio interface or mixer.

9. Logic gate that outputs true only when all of its inputs are false

10. Reducing the size of data without any loss of information.

11. A mathematical operator used to perform division with remainder, often denoted by the percent symbol (%).

Down

12. The brightness of an image or pixel.

13. A cipher that uses multiple alphabets to encrypt a message.

14. A substitution cipher in which the symbol used to replace a letter varies depending on its position in the plaintext.

15. The study of analyzing and breaking encryption schemes

16. A technique used to analyze and decipher encrypted messages by studying the frequency of occurrence of letters or symbols in the ciphertext.

17. A six-digit code used to specify colors in the RGB color model.

18. A graphical representation of a sound wave showing its amplitude and frequency variations over time.

19. Communication that is encrypted and protected from unauthorized access

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