AY Honor Cryptography - Advanced Answer Key

Cryptography - Advanced

Skill Level

2

Year

2019

Version

26.03.2025

Approval authority

Southeast Asia Union

You should complete the basic level of this honor before you complete the advanced level. For tips and instruction see Cryptography.

1

What is Gematria and who developed it?

2

What is the significance and symbolism behind the certain numbers (gematria) found in the Bible?

3

What are the seven Roman letters that represent Roman numbers and how are they used to form other numbers?

4

What is the most common emergency number (emergency code) around the world?

5

What city first introduced a telephone emergency number (emergency code)? What was that number?

6

What are "ICE" numbers (or ICE codes)?

7

What are "love numbers" (or love codes) found in some cultures?

8

Why is the use of the number code "555" such a comical contrast when used in Thailand slang as compared to its use in China?

9

What are runes and how are they sometimes used to send secret messages?

10

Know at least four substitution ciphers (codes) which encode secret messages using numbers.

• Number substitution code
• Nomisweis code
• Tap code
• Pig Pen number code
• Morse code as numbers -- MAN & MANOE
• Braille code as numbers -- BAN & BANAM
• Semaphore code as numbers -- SAN

References