Module 4 Puzzle

8. This type of employee is the greatest security risk to any company
11. A widely used encryption algorithm(PGP)
12. Ciphers that encrypt blocks of text at a time (for example, 64 bytes at a time)
15. A primitive encryption algorithm in which there is one single substitute character for all plain text characters
16. Motivating factor for corporate/industrial espionage
17. A symmetric key system using 64-bit blocks
18. Synonym for cryptographic algorithm

1. The study of encryption and decryption
2. This usually involves altering a message so that it cannot be read without the key and the decryption algorithm
3. A binary mathematical operation that is used for a simple encryption method
4. An encryption method in which the same key is used to both encrypt and decrypt a message. This is also referred to as symmetric key encryption
5. A primitive encryption algorithm in which there are multiple substitute characters for all plain text characters
6. Base 2 numbers
7. A hacker with years of experience
8. To break encryption and discover the underlying message
9. A type of cipher in which the original text is encrypted one byte at a time in a stream of bytes
10. A network constructed by using public wires to connect nodes
12. A well-known "aquatic" encryption algorithm
13. A type of encryption that uses different keys to encrypt and decrypt the message
14. One of the oldest known ciphers. It simply shifts each character by a given number of characters.