1. ADFGVX Cipher encoder

Text : ABCD efghi
Key : key
Alphabet : abcdefghijklmnopqrstuvwxyz0123456789

Solution:

Alphabet : abcdefghijklmnopqrstuvwxyz0123456789

Build the square:
Fill the 6x6 square row by row by Alphabet : abcdefghijklmnopqrstuvwxyz0123456789
and labeling both rows and columns with adfgvx

	a	d	f	g	v	x
a	a	b	c	d	e	f
d	g	h	i	j	k	l
f	m	n	o	p	q	r
g	s	t	u	v	w	x
v	y	z	0	1	2	3
x	4	5	6	7	8	9

Fractionate the plaintext
Remove all the symbols except available in the square.
Each character is replaced by its row and column labels, producing a stream of adfgvx pairs.
This step turns the Text into fractionated form

Plaintext	a	b	c	d	e	f	g	h	i
Pairs	aa	ad	af	ag	av	ax	da	dd	df

Apply the columnar transposition on fractionated message

columnar transposition steps :

Write the plaintext in row-by-row

k 2	e 1	y 3
a	a	a
d	a	f
a	g	a
v	a	x
d	a	d
d	d	f

The columns are sorted alphabetically, based on the keyword and the new table is

e 1	k 2	y 3
a	a	a
a	d	f
g	a	a
a	v	x
a	d	d
d	d	f

Read the ciphertext in column-by-column
aagaad,adavdd,afaxdf

Plaintext	: aaadafagavaxdadddf
Key	: key
Ciphertext	: aagaadadavddafaxdf

Plaintext	: abcdefghi
Key	: key
Ciphertext	: aagaadadavddafaxdf

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2. ADFGVX Cipher encoder

Text : hello world
Key : code
Alphabet : abcdefghijklmnopqrstuvwxyz0123456789

Solution:

Alphabet : abcdefghijklmnopqrstuvwxyz0123456789

Build the square:
Fill the 6x6 square row by row by Alphabet : abcdefghijklmnopqrstuvwxyz0123456789
and labeling both rows and columns with adfgvx

	a	d	f	g	v	x
a	a	b	c	d	e	f
d	g	h	i	j	k	l
f	m	n	o	p	q	r
g	s	t	u	v	w	x
v	y	z	0	1	2	3
x	4	5	6	7	8	9

Fractionate the plaintext
Remove all the symbols except available in the square.
Each character is replaced by its row and column labels, producing a stream of adfgvx pairs.
This step turns the Text into fractionated form

Plaintext	h	e	l	l	o	w	o	r	l	d
Pairs	dd	av	dx	dx	ff	gv	ff	fx	dx	ag

Apply the columnar transposition on fractionated message

columnar transposition steps :

Write the plaintext in row-by-row

c 1	o 4	d 2	e 3
d	d	a	v
d	x	d	x
f	f	g	v
f	f	f	x
d	x	a	g

The columns are sorted alphabetically, based on the keyword and the new table is

c 1	d 2	e 3	o 4
d	a	v	d
d	d	x	x
f	g	v	f
f	f	x	f
d	a	g	x

Read the ciphertext in column-by-column
ddffd,adgfa,vxvxg,dxffx

Plaintext	: ddavdxdxffgvfffxdxag
Key	: code
Ciphertext	: ddffdadgfavxvxgdxffx

Plaintext	: helloworld
Key	: code
Ciphertext	: ddffdadgfavxvxgdxffx

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