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The following is a test on security. See how many points you can gain.

Your current score is: 0

Coded messages

One method of coding is to use Morse code which encodes alphabetic and numeric characters with a sequence of dots (".") and dashes ("-"). An outline of the code is:

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("——··").

For an example, click on the following:

Find the following messages:

Coding

Answer

Result

···— · ·· —·

Incorrect

—··· ·— —·—· —·— ·—— ·— ·—· —·· ···

Incorrect

··—· ——— ——— —

Incorrect

··· · ·—· ···— · ·—·

Incorrect
  Score 0

  The ADFGVX Cipher

The ADFGVX cipher has been used in many applications. It is made from a grid:

A

D

F

G

V

X

A

8

p

3

d

1

n

D

l

t

4

o

a

h

F

7

k

b

c

5

z

G

j

u

6

w

g

m

V

x

s

v

i

r

2

X

9

e

y

0

f

q

where "cat" becomes: FG DV DD

Use the ADFGVX ciper to decode the following:

Coding

Answer

Result

XD AX DD VV AF

Incorrect

FF DV FG FD FF DG AX XD

Incorrect

VV XD VD AD DG AX VD XD

Incorrect
  Score 0

and in Text speak:

Coding

Answer

Result

2BORNT2B

Incorrect

LOM8THISISGR8. CUL8R

Incorrect
  Score 0

 

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Developed by Bill Buchanan, Jamie Graves, Zibi Kwecka and Lionel Saliou, Centre for Distributed Computing and Security [link].