Australian Signals Directorate (ASD) 50c Coin DECODED!

The Australian Signals Directorate released a limited mint 50c coin a few days ago with a "secret" challenge engraved on the coins. Not much of a secret, but hey, their words not my words! Let's have a look at decoding this coin to see what we get!

The cipher text found around the coin is coded using a cipher called Atbash. This cipher is decoded by ordering the text that has a braille characters in alphabetical order from the other side of the coin. Starting from the *UR string at the bottom of the coin, the outer code deciphers to two lines of text.


1) URMWXOZIRGBRM7DRWGSC5WVKGS - FIND CLARITY IN 7 WIDTH X 5 DEPTH (this is a clue)

2) DVZIVZFWZXRLFHRMXLMXVKGZMWNVGRXFOLFHRMVCVXFGRLM - WE ARE AUDACIOUS IN CONCEPT AND METICULOUS IN EXECUTION


Now break the inner circle of text using a 7 x 5 cube


B G O A M V O E I A T S I R L N G T T N E O G R E R G X N T E A I F C


B G O A M V O

E I A T S I R

L N G T T N E

O G R E R G X

N T E A I F C


Translates to: BELONGING TO A GREAT TEAM STRIVING FOR EXC


E C A I E O A L E K F N R 5 L W E F C H D E E A E E E 7 N M D R X X 5


E C A I E O A

L E K F N R 5

L W E F C H D

E E A E E E 7

N M D R X X 5


Translates to: ELLENCE WE MAKE A DIFFERENCE XOR HEX A5D75 (ASD75)


Append the two together and you get:

BELONGING TO A GREAT TEAM STRIVING FOR EXCELLENCE WE MAKE A DIFFERENCE XOR HEX A5D75 (ASD75).


There are two more bonus codes to be deciphered and its hidden inside the continuous text on the 2/3 section of the coin. Go have a look at the pictures of the coin (both sides) and have a go at it yourself! I'd highly recommend using CyberChef (https://gchq.github.io/CyberChef) as well as https://www.dcode.fr to have a play with the ciphers.

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