HSC TuteSmart: limited places remaining - Click here. | VCE TuteSmart: access Early Bird Offer (FREE Study Guides) - Click here.

Welcome, Guest. Please login or register.

December 17, 2018, 06:00:14 pm

Author Topic: Code Crackers  (Read 576 times)  Share 

0 Members and 1 Guest are viewing this topic.

fun_jirachi

  • MOTM: AUG 2018
  • Forum Obsessive
  • ***
  • Posts: 266
  • All doom and Gloom.
Re: Code Crackers
« Reply #15 on: August 20, 2018, 08:44:11 pm »
yeah ouch i am kicking myself, its a shift cipher embedded in a caesar cipher
how did i not see that :'(
Failing everything, but I'm still Flareon up.

HSC 2018: Modern History [88] | 2U Maths [98]
HSC 2019: Physics | Chemistry | English Advanced | Maths Extension 1 | Maths Extension 2

Jordan3650

  • Adventurer
  • *
  • Posts: 5
Re: Code Crackers
« Reply #16 on: August 20, 2018, 09:01:22 pm »
true S200 i am kicking myself i had forgotten about them
i think i need a touch up on my code breaking skills

S200

  • Part of the furniture
  • *****
  • Posts: 1064
  • Tempus Fugit
Re: Code Crackers
« Reply #17 on: August 20, 2018, 09:21:24 pm »
yeah ouch i am kicking myself, its a shift cipher embedded in a caesar cipher
how did i not see that :'(
true S200 i am kicking myself i had forgotten about them
i think i need a touch up on my code breaking skills
So what was my first message? :D
Education
2017
VCE
VET Business {32}
2018
VCE
| Methods | English | Economics | Physics |
Predictions
36|15|43|42 ~~> ATAR 84.95
Tafe/Extracurricular
FNS40615 Certificate IV in Accounting
Carpe Cerevisi

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

Jordan3650

  • Adventurer
  • *
  • Posts: 5
Re: Code Crackers
« Reply #18 on: August 20, 2018, 10:46:05 pm »
This one?
NGAE ZRUYRPN RTNYIRP FNGVROXQ FJCR
still trying to work it out. do you railfence cipher first then use caesar cipher or what? using 2 is a rather clever way to do it i must say

S200

  • Part of the furniture
  • *****
  • Posts: 1064
  • Tempus Fugit
Re: Code Crackers
« Reply #19 on: August 21, 2018, 05:32:27 am »
I did the message on the fence and then Ceasared it, so you'll have to do the inverse...
Education
2017
VCE
VET Business {32}
2018
VCE
| Methods | English | Economics | Physics |
Predictions
36|15|43|42 ~~> ATAR 84.95
Tafe/Extracurricular
FNS40615 Certificate IV in Accounting
Carpe Cerevisi

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

Joseph41

  • Administrator
  • Great Wonder of ATAR Notes
  • *****
  • Posts: 7720
  • Oxford comma and Avett Brothers enthusiast.
Re: Code Crackers
« Reply #20 on: August 21, 2018, 04:02:09 pm »
How I feel reading this thread:

A noble spirit embiggens the smallest man.

S200

  • Part of the furniture
  • *****
  • Posts: 1064
  • Tempus Fugit
Re: Code Crackers
« Reply #21 on: August 21, 2018, 04:03:26 pm »
Need an abacus Nick? ;)
Education
2017
VCE
VET Business {32}
2018
VCE
| Methods | English | Economics | Physics |
Predictions
36|15|43|42 ~~> ATAR 84.95
Tafe/Extracurricular
FNS40615 Certificate IV in Accounting
Carpe Cerevisi

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

dantraicos

  • Forum Regular
  • **
  • Posts: 78
  • \[B>\frac1n\sum_{k=1}^n X_k\]
Re: Code Crackers
« Reply #22 on: November 27, 2018, 11:39:50 pm »
Thread revival time. Brownie points to the first person to solve this :)

Configuration:
I, II, III = D, A, N
AF, BE, CD, GT, HS, IR, JQ, KP, LO, MN, UZ, VY, WX.

Message:
WSPMAV
2015-2017: VCE [98.00 ATAR]
2018-2021: University of Melbourne [Biomedicine (Bioengineering Systems Major) and Mathematical Sciences Diploma]

Co-founder of TWM Publications - a VCE Trial Exams Company

vox nihili

  • National Moderator
  • ATAR Notes Legend
  • *****
  • Posts: 4895
Re: Code Crackers
« Reply #23 on: November 27, 2018, 11:47:33 pm »
How I feel reading this thread:


Mate, Iíve never felt a post speak to me more than this. Holy shit.
PM for medicine interview tutoring

2013-15: BBioMed (Biochemistry and Molecular Biology), UniMelb
2016-20: MD, UniMelb
2019: MPH, UniMelb
Year I: BIOL10002 BIOL10003 CHEM10006 MAST10011 MAST10016 PHYC10007 SPAN10001 SPAN10002
Year II: BCMB20005 BIOM20001 BIOM20002 CLAS10022 GENE20001 SPAN20020 SPAN30014
Year III: BCBM30001 BCMB30002 BCMB30010 BIOM30001 BIOM30002 PHRM30008

S200

  • Part of the furniture
  • *****
  • Posts: 1064
  • Tempus Fugit
Re: Code Crackers
« Reply #24 on: November 28, 2018, 12:03:55 am »
Thread revival time. Brownie points to the first person to solve this :)

Configuration:
I, II, III = D, A, N
AF, BE, CD, GT, HS, IR, JQ, KP, LO, MN, UZ, VY, WX.

Message:
WSPMAV
Any more hints?

One very stumped chump here..
Education
2017
VCE
VET Business {32}
2018
VCE
| Methods | English | Economics | Physics |
Predictions
36|15|43|42 ~~> ATAR 84.95
Tafe/Extracurricular
FNS40615 Certificate IV in Accounting
Carpe Cerevisi

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

dantraicos

  • Forum Regular
  • **
  • Posts: 78
  • \[B>\frac1n\sum_{k=1}^n X_k\]
Re: Code Crackers
« Reply #25 on: November 28, 2018, 12:19:19 am »
Any more hints?

One very stumped chump here..

Hint: the English mathematician and logician who solved this code died of cyanide poisoning
2015-2017: VCE [98.00 ATAR]
2018-2021: University of Melbourne [Biomedicine (Bioengineering Systems Major) and Mathematical Sciences Diploma]

Co-founder of TWM Publications - a VCE Trial Exams Company

S200

  • Part of the furniture
  • *****
  • Posts: 1064
  • Tempus Fugit
Re: Code Crackers
« Reply #26 on: November 28, 2018, 05:15:41 pm »
Yeah, I get that it's basic Enigma. (I knew someone would eventually do this...);)

But when do your rotors switch? 1/26?

'cause I get the Transcoded text to be YDMYVL, which I assume should be YDMYDM, as in the 'Scrib' for further encoding?
« Last Edit: November 28, 2018, 06:28:01 pm by S200 »
Education
2017
VCE
VET Business {32}
2018
VCE
| Methods | English | Economics | Physics |
Predictions
36|15|43|42 ~~> ATAR 84.95
Tafe/Extracurricular
FNS40615 Certificate IV in Accounting
Carpe Cerevisi

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

dantraicos

  • Forum Regular
  • **
  • Posts: 78
  • \[B>\frac1n\sum_{k=1}^n X_k\]
Re: Code Crackers
« Reply #27 on: November 28, 2018, 08:18:20 pm »
Yeah, I get that it's basic Enigma. (I knew someone would eventually do this...);)

But when do your rotors switch? 1/26?

'cause I get the Transcoded text to be YDMYVL, which I assume should be YDMYDM, as in the 'Scrib' for further encoding?

Rotors never 'switch'. The least significant rotor (LSR) moves 1 position each time a character is inputted. Once the LSR has moved 26 times, the 2nd LSR moves. (It's like counting upwards in base 26 but with letters and taking the start position as 000).

Also, make sure you have operations in the correct order, signals go into the board first, and then the rotors from least significant to most significant :).

MASSIVE HINT: The configuration I gave may or may not have been the encoding configuration :o

And the answer is not "YDMYVL". It will be obvious when you have the correct answer :)
« Last Edit: November 28, 2018, 08:22:40 pm by dantraicos »
2015-2017: VCE [98.00 ATAR]
2018-2021: University of Melbourne [Biomedicine (Bioengineering Systems Major) and Mathematical Sciences Diploma]

Co-founder of TWM Publications - a VCE Trial Exams Company

S200

  • Part of the furniture
  • *****
  • Posts: 1064
  • Tempus Fugit
Re: Code Crackers
« Reply #28 on: November 28, 2018, 11:28:36 pm »
Ok.
I just threw the plug board combo's and the rotor start positions into an enigma simulator app, and that's what it gave me.

I guess I'm gonna have to try my hand at Berkeley Park... :-\
Education
2017
VCE
VET Business {32}
2018
VCE
| Methods | English | Economics | Physics |
Predictions
36|15|43|42 ~~> ATAR 84.95
Tafe/Extracurricular
FNS40615 Certificate IV in Accounting
Carpe Cerevisi

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000