Solving with a K1 Alphabet

Sometimes an Aristocrat or Patristocrat will be encoded with a K1 alphabet instead of a random alphabet.† This can make it much easier to solve once you have identified a few letters.†

To understand what this means you must look at how the letters are chosen to replace the original text.† This process goes as follows:

1.       When creating the encryption, pick a code word or phrase.† For example, we choose a phrase of ďALPHABET SOUPĒ as our encryption code word.

2.       Eliminate all duplicate letters in the phrase.† In this case the letter A appears twice (once at the start and after the H) and the letter P appears twice (third letter and at the end).† We also drop any spaces and punctuation to end up with ALPHBETSOU

3.       Pick an offset in the alphabet to place the code word.† In this example, we will start at offset 5 meaning that we shift the alphabet by 5 characters.† †This means that we will map the letter A to F, L to G etc.† This means the word THE would be encoded as LIK

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

Frequency

Replacement

A

L

P

H

B

E

T

S

O

U

4.       Next we fill in the remainder of the alphabet starting at the end of the phrase with the start of the alphabet and wrapping back to the beginning to use up all the characters.† However in this case since we already used the letters A, B and E in our phrase, we would start with C D F G etc.† This gives us a mapping of

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

Frequency

Replacement

V

W

X

Y

Z

A

L

P

H

B

E

T

S

O

U

C

D

F

G

I

J

K

M

N

Q

R

 

1      Applying the knowledge

To see how this would be useful, letís take a simple Aristocrat which was encoded with a K1 alphabet.† We know that because of the K1 in the replacement table.

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Taking a quick look, the apostrophe and single letter word at the start of the second sentence suggests ITíS A.

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

S A††††††† S I††† IT† T

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

ITíS A S†††††††††† I†† S I† A†††† A† .

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

 

T

 

 

 

 

 

 

 

 

A

 

S

 

 

 

 

I

 

 

 

 

 

 

 

 

 

The three letter word BQI starts with a T and the I is the most frequent letter, so we can assume that it is THE.† Filling that in gives us

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

SHA E††††† S I E †ITH THE

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

ITíS A S†††††††††† IE† SHI† A††† EA E.

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

 

T

 

 

 

 

 

 

E

 

A

 

S

 

 

 

H

I

 

 

 

 

 

 

 

 

 

This is where we get a huge break because we know that it is a K1 alphabet.† If you look at the E A and S you notice that the A is after the E and the S is only one letter away from the A.† This tells us that they must be part of the key phrase.† Looking further we see the HI combination which we can guess is part of the remaining alphabet.† Furthermore counting the letters after the H I, we try J K L M N O P Q R (skip the S because it was already used) T and see that it fits exactly in the space for S to A giving us a replacement alphabet of:

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

R

T

 

 

 

 

 

 

E

 

A

 

S

 

 

 

H

I

J

K

L

M

N

O

P

Q

 

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

SHARE †O R SMILE †ITH THE† ORL

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

ITíS A S M OL O† †RIEN SHIP AN† PEA E.

This fills in quite a bit for us and we can readily see that D must be W, O must be F and N must be D giving us:

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

SHARE †O R SMILE WITH THE WORLD

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

ITíS A S M OL OF FRIENDSHIP AND PEA E.

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

R

T

 

W

 

 

 

 

E

 

A

 

S

D

F

 

H

I

J

K

L

M

N

O

P

Q

 

We can look and know a couple of things.† P must be G because of the single letter gap between the F and the H.† The letters B and C must be in the key phrase because we started with the letter D after the phrase.† But we also can see a couple of letters to substitute in the phase.† J must be C to make the word PEACE and FXLA must be YOUR.† This gives us:

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

SHARE YOUR SMILE WITH THE WORLD

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

ITíS A SYM OL OF FRIENDSHIP AND PEACE.

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

R

T

 

W

 

Y

 

 

E

C

A

U

S

D

F

G

H

I

J

K

L

M

N

O

P

Q

 

Looking at this, we see that V must be between T and W (we already used the U) X must be between the W and the Y which is followed by Z.† This leaves H to map to the letter B.

MQKAI FXLA MVRUI DRBQ BQI DXAUN.

SHARE YOUR SMILE WITH THE WORLD

RB'M K MFVHXU XO OARIWNMQRY KWN YIKJI.

ITíS A SYMBOL OF FRIENDSHIP AND PEACE.

K1

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

Frequency

4

3

2

2

1

6

1

4

1

5

3

2

4

5

3

2

2

4

2

Replacement

R

T

V

W

X

Y

Z

B

E

C

A

U

S

D

F

G

H

I

J

K

L

M

N

O

P

Q

 

This gives us our solution and you can see that the keyword was ďBECAUSEĒ.†

Note that just because it is a K1 alphabet doesnít mean that you have to solve it that way, it just serves as a hint to make it easier.