On the Subject of Copper-9

Why is it called Copper-9, even though there is no copper?

On the module, you will see 3 screens, a keyboard, 2 arrows, and a submit button that displays the current page you’re on.

Pressing the right arrow takes you to the next page. Pressing the left arrow takes you to the previous page. There is a total of 2 pages.

On page 1, the top screen shows a 6 letter encrypted word, the middle screen shows a keyword, and the bottom screen shows an encrypted string.

On page 2, the top screen shows a keyword, the middle screen shows an encrypted string, and the bottom screen shows a substitution string.

Step 1: J Cipher (Branded Pen Cipher)

Take the encrypted word on the top screen of page 1, and the keyword on the middle screen of page 1. Remove any duplicate letters in the keyword while keeping the 1st occurrence. Take the entire alphabet and remove all the letters shown in the keyword.

If the number of batteries is odd, put the alphabet at the end of the keyword. Otherwise, put the alphabet in front of the keyword.

Use the serial number and cycle the alphabet by each alphanumeric character left on odd positions and right on even positions. For letters, use the alphabetic position of the letter.

Place an alphabet at the top of your six key sequences. Find the encrypted letter in the top alphabet and replace it with the letter in the first sequence, then continue the process with the remaining sequences until the last sequence is reached. The letters found is your new encrypted word.

Example

Encrypted Word: SLEHZT
Batteries is odd
Keyword: SUPPLY
Serial Number: 1J2NVW

A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z
B	C	D	E	F	G	H	I	J	K	M	N	O	Q	R	T	V	W	X	Z	S	U	P	L	Y	A
T	V	W	X	Z	S	U	P	L	Y	A	B	C	D	E	F	G	H	I	J	K	M	N	O	Q	R
C	D	E	F	G	H	I	J	K	M	N	O	Q	R	T	V	W	X	Z	S	U	P	L	Y	A	B
N	O	Q	R	T	V	W	X	Z	S	U	P	L	Y	A	B	C	D	E	F	G	H	I	J	K	M
U	P	L	Y	A	B	C	D	E	F	G	H	I	J	K	M	N	O	Q	R	T	V	W	X	Z	S
D	E	F	G	H	I	J	K	M	N	O	Q	R	T	V	W	X	Z	S	U	P	L	Y	A	B	C

S → X → O → T → F → B → E
L → N → D → F → V → V → L
E → F → S → Z → M → I → M
H → I → Q → W → I → E → H
Z → A → T → S → E → A → D
T → Z → R → X → J → F → I

New Encrypted Word: ELMHDI

Step 2: N Transposition (Golden Retriever Transposition)

Take the new encrypted word from step 1 and the string on the bottom display on page 1. Convert the string to numbers where F is 1, J is 2, N is 3, S is 4, V is 5, and X is 6.

Split the numbers into triplets. If the number of unlit indicators is less than 3, cycle the first triplet fowards and the second triplet backwards. Otherwise, cycle the first triplet backwards and the second triplet forwards. The letters you get after the two cycles is your new encrypted word.

Example

Encrypted Word: ELMHDI
Unlit indicators is less than 3
Encrypted String Converted to Numbers: FNXJNV → 136235

ELMHDI → 136 → ILEHDM → 235 → IEDHLM

New Encrypted Word: IEDHLM

Step 3: V Cipher (Bubble Cipher)

Take the encrypted word from step 2, the keyword of the top display on page 2, and the 6 letters on the middle display of page 2. Remove any duplicate letters in the keyword while keeping the 1st occurrence and replace any Z’s with X’s. Take the entire alphabet omitting Z and remove all the letters shown in the keyword.

If the number of parallel ports is greater than the number of serial ports, put the alphabet at the end of the keyword. Otherwise, put the alphabet at the beginning of the keyword.

For each letter in the encrypted word and sequence of 6 letters on the middle screen, rotate the encrypted letter 90 degrees counterclockwise around the letter on the middle screen (the grid wraps around). If any decrypted letter matches the characters on the bottom screen of page 2, replace them with a Z.

Example

Encrypted Word: IEDHLM
Keyword: INTEREST
Parallel Ports are not greater than Serial Ports
Middle Screen Page 2: PGQXJK

A	B	C	D	F
G	H	J	K	L
M	O	P	Q	U
V	W	X	Y	I
N	T	E	R	S

I, P → D
E, G → R
D, Q → O
H, X → N
L, J → E
M, K → S

DRONES + JQACOL → DRONES
Decrypted Word: DRONES

Once you finally have your decrypted word, you can submit it. Once you start typing, all the screens will go black and the bottom screen will show what you are typing.

To clear it, just click one of the arrows. This goes to one of the pages and clears any input you put in. It will not let you go over 6 letters on input.

Once you are satisfied with your input, press the button labeled “SUB” to submit your answer. On a strike, the module will go back to the first page of the module, but it does not regenerate.