25 Tips to Create Business Activity Code

Note: Though this code can be easily solved, but it can be useful if you think someone is trying to peek at your message.

2. Reflect the alphabet in half to encipher messages.

Write out the letters A through M in a single line on a piece of paper.

Directly beneath this line, write out the letters N through Z also in a single line.

Change each letter of messages to the opposite letter of the two lines of letters you have written out.

• By using a reflected alphabet, the message “Hello” would instead become “Uryyb.”

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3. Try pigpen cipher.

Draw a tic tac toe grid on a piece of paper.

Write out the letters A through I in the grid going from the left to right, top to bottom. In this example:

• • The first row is made up of the letters A, B, C.
  • The second is made up of D, E, F.
  • The last row is made up of G, H, I.

Business Activity Code

4. Create a second tic tac toe grid with dots.

Draw another tic tac toe grid beside the first one. Fill the grid in with the letters J through R, similarly to the first grid.

Then mark dots in each space of the grid of each row as described:

• • • In the first row, starting on the left, place a dot in the lower right corner (letter I), on the bottom middle side (letter K), and in lower left corner (letter L).
    • In the second row, starting on the left, place a dot on the middle right side (letter M), on the bottom middle side (letter N), and on the middle left side (letter O).
    • In the second row, starting on the left, place a dot in the upper right corner (letter P), on the top middle side (letter Q), and in the upper left corner (letter R).

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5. Write out two X shapes beneath each grid.

These two X shapes will also be filled with letters to complete your pigpen cipher key.

In the second X, place dots in the open spaces surrounding where the X crosses.

So there is a dot on each side of the center of the X. Then:

• • • • In the first (undotted) X shape, write S in the top of the X, T on the left side, U on the right, and V on the bottom.
      • In the second X shape, write W in the top of the X, X on the left side, Y on the right, and Z on the bottom.

6. Use the grid surrounding the letters to write in pigpen cipher.

The grid shapes (including dots) surrounding letters are used as substitutes for the letters themselves.

Use your pigpen cipher key to translate messages into and out of pigpen.

Business Activity Code

7. Use a date shift cipher.

Choose a date. This might be something with personal significance.

Like a birthday or the day you graduated college.

But it could be something impersonal, like the birthday of George Washington.

Write out the date as an unbroken string of numbers. This is the number key.

• For example, if you were to use George Washington’s birthday (2/22/1732), you would write it as 2221732.
• If you’ve already agreed to use a date shift cipher with someone, you can accompany enciphered messages with a clue (like “Washington”) for the number key.

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7. Encipher your message with the date shift number key.

Write out your message on a piece of paper.

Underneath the message, write out a single digit of the number key for each letter of your message.

When you reach the last digit of the number key, repeat the key from the beginning.

For example, using George Washington’s birthday (2/22/1732):

• • Message: I’m hungry
  • Enciphering:
    I.m.h.u.n.g.r.y
    2.2.2.1.7.3.2.2
    Shift letters according to the number key, as in…
  • Coded message: K.O.J.V.U.J.T.A

Business Activity Code

8. Use a secret language, like Pig Latin.

In Pig Latin, words that start with a consonant sound switch that sound to the end of the word and add “ay.”

This holds true for words start with a cluster of consonants.

Words that start with vowels just get “way” or “ay” added to the end of the word.

• Consonant initial examples: pig = igpay ; me = emay ; too = ootay ; wet = etway ; hello = ellohay
• Consonant cluster initial examples: glove = oveglay ; shirt = irtshay ; cheers = eerschay
• Vowel initial examples: explain = explainway ; egg = eggway ; ends = endsay ; eat = eatay

Business Activity Code

9. Recognize the limitations of codes.

Code books can be stolen, lost, or destroyed.

Modern cryptoanlaytic techniques and computer analysis can oftentimes break even strong codes.

Even so, codes can condense long messages into a single signal word, making them great time savers.

• Codes serve as good pattern identification practice.
• This skill can be put to use when encoding, decoding, enciphering, or deciphering messages.
• Codes are naturally used between close friends.
• Inside jokes could be thought of as a kind of “code.”
• Try developing your code language with your best friends.

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10. Determine the goal of your code.

Knowing the purpose of your code will prevent unnecessary work.

If your goal is to save time, you might only need a few specific code words.

If you’re trying to encode detailed message.

You may need to develop a code book that is more like a dictionary.

• Select common phrases that occur in the messages you want to encode.
• These are prime targets to be condensed in a code word.
• Codes can be further complicated by using several different codes in rotation or combination.
• However, the more codes used, the more code books necessary for decoding.

11. Develop your code book.

Condense common phrases, like “Reading you loud and clear,” to something like “Roy.”

For every conceivable word in your encoded messages and common phrases as well.

Designate alternative code words.

• • Sometimes, partial code can obscure a message sufficiently.
  • For example, if “walk” means “tango” and “museum” means “restaurant” and the previously used code word “Roy” holds its value,
    • Message: About yesterday. I wanted to say, Roy. I’ll tango to the restaurant as planned. Over and out.
    • Meaning: About yesterday. I wanted to say, reading you loud and clear. I’ll walk to the museum as planned. Over and out.

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Business Activity Code

12. Apply your code book to messages.

Use the code words in your code book to encode messages.

You may find that you can save yourself time by leaving nouns (like names and pronouns like I, me, she) as plain text.

However, this decision depends purely on your situation.

• • • • Two-part codes apply two different code books to encode or decode a message.
      • These are much stronger than one-part codes.

13. Use a key to encode your message, alternately.

A key message, group of words, letters, symbols, or a combination of these can be used to encode information. 

The recipient of your message will also need this key phrase or key of letters/symbols to decode the message.

• • • • • For example, with the key word “SECRET,” each letter of your message would convert to the number of letters between it and the corresponding letter of the key word. As in,
          • Message: Hello
          • Encoding:
            /H/ is 11 letters away from the key /S/
            /e/ is the same (zero) as the key /E/
            /l/ is 9 letters away from the key /C/
            And so on…Coded Message: 11; 0 ; 9 ; 6 ; 10

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Business Activity Code

14. Decode messages.