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

Across

1. A cipher that rearranges the order of the plaintext letters or symbols, rather than replacing them with different ones as in a substitution cipher.

2. A type of encryption where the order of letters in the plaintext is rearranged

3. An image consisting of varying shades of a single color, usually black or white, but can also be other colors.

4. A unit of digital information equal to 1,073,741,824 bytes, or 2^30 bytes.

5. A method of data representation that uses two digits, namely 0 and 1.

6. A cipher that replaces each letter in the plaintext with a different letter, symbol, or number in the ciphertext.

7. An operator that operates on logical values, such as true and false.

8. The process of combining different colors of light in the RGB color model.

9. A group of letters added at the beginning of a word to change its meaning.

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

11. The subtraction of binary numbers.

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

13. The value that is transferred to the next left column when the sum of two bits exceeds the base value.

Down

14. The basic unit of information in computing and digital communications, representing a binary digit (0 or 1).

15. The number of bits that are processed or transmitted per unit of time, typically measured in bits per second (bps)

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

17. The process of changing a number from one numbering system to another.

18. Blurring of colors or bleeding of colors outside their boundaries in a compressed image

19. A type of substitution cipher in which each letter in the plaintext is shifted a certain number of places down the alphabet.

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