Tap code Cipher | Knock code Cipher Examples (encoder / decoder)

1. Tap code Cipher encoder

Text : ABCD efghi
Tap : .
Alphabet25 : abcdefghiklmnopqrstuvwxyz
Row Heading : 12345
Column Heading : 12345
Coordinates Read Order : Row then Column

Solution:

The Tap code cipher is a 5x5 grid-based Polybius square cipher, that represents letters using two sets of taps, where first denotes row and second denotes column

Alphabet = abcdefghiklmnopqrstuvwxyz

	1	2	3	4	5
1	a	b	c	d	e
2	f	g	h	i	k
3	l	m	n	o	p
4	q	r	s	t	u
5	v	w	x	y	z

Plaintext	a	b	c	d	e	f	g	h	i
Position	11	12	13	14	15	21	22	23	24
Position to taps (Cipher)	. .	. ..	. ...	. ....	. .....	.. .	.. ..	.. ...	.. ....

Plaintext	: abcdefghi
Tap	: .
Cipher Number	: 11 12 13 14 15 21 22 23 24
Ciphertext	: . . . .. . ... . .... . ..... .. . .. .. .. ... .. ....

2. Tap code Cipher encoder

Text : hello world
Tap : .
Alphabet25 : abcdefghiklmnopqrstuvwxyz
Row Heading : 12345
Column Heading : 12345
Coordinates Read Order : Row then Column

Solution:

The Tap code cipher is a 5x5 grid-based Polybius square cipher, that represents letters using two sets of taps, where first denotes row and second denotes column

Alphabet = abcdefghiklmnopqrstuvwxyz

	1	2	3	4	5
1	a	b	c	d	e
2	f	g	h	i	k
3	l	m	n	o	p
4	q	r	s	t	u
5	v	w	x	y	z

Plaintext	h	e	l	l	o	w	o	r	l	d
Position	23	15	31	31	34	52	34	42	31	14
Position to taps (Cipher)	.. ...	. .....	... .	... .	... ....	..... ..	... ....	.... ..	... .	. ....

Plaintext	: helloworld
Tap	: .
Cipher Number	: 23 15 31 31 34 52 34 42 31 14
Ciphertext	: .. ... . ..... ... . ... . ... .... ..... .. ... .... .... .. ... . . ....

This material is intended as a summary. Use your textbook for detail explanation.
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1. Examples