AY Honor Cryptography Answer Key

Cryptography

Skill Level

1

Year

2025

Version

15.10.2025

Approval authority

North American Division

1

Define cryptography and list its major applications.

2

Define the following terms:

2a

Code

2b

Cipher

2c

Steganography

2d

Plain text

2e

Key

2f

Public-key cryptography

2g

One-way function

3

Define each of the following categories of ciphers, give an example of each, and encipher your name using each technique.

3a

Transposition

3b

Polybius Square

3c

Square

3d

Substitution

3e

Polyalphabetic

4

Investigate whether each item in the list below is a code, a cipher, steganography, or a plain text message.

5

Classical cryptology is the study of codes and ciphers used in the past. Discover how the following cryptographic forms were encoded in antiquity, and try to duplicate their processes to record a message:

6

Prepare a message containing the Pathfinder Law enciphered in a Caesar cipher and indicate the key used.

7

Use steganography to write the Pathfinder Pledge.

8

Choose a cipher to encrypt a favorite Bible text and let another person decrypt it. Be sure to give that person the type of cipher and the key used.

9

Decrypt a message made by another person using the key and cipher type they used.

References