A special National Cipher Challenge for extraordinary times › Forums › Bureau of Security and Signals Intelligence Forum › Challenge 6
- This topic has 40 replies, 13 voices, and was last updated 3 years, 11 months ago by 10degrees-admin.
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8th May 2020 at 4:51 pm #4815610degrees-adminKeymaster
Hello Harry,
When are we going to get a hint for challenge 68th May 2020 at 4:52 pm #48157HarryKeymasterYou already did (assuming you read the solution to Challenge 5A!)
Harry
9th May 2020 at 10:28 am #4815910degrees-adminKeymaster@Harry What do you mean? Are you talking about 6A or 6B? [I was talking about 6B. Were you asking about 6A? Harry
PS, Ah, I see, when I said 5A in the hint, I meant 6A. Holiday hat on, sorry! Harry]
9th May 2020 at 11:24 am #4816110degrees-adminKeymasterWill we get a hint for 6A? I have an idea of how it has been encrypted and made a start but I don’t know where I can go from here
9th May 2020 at 11:25 am #48162HarryKeymasterTry decrypting the start and the finish of the cipher text, trusting what you think you know, and see if you spot anything a bit familiar!
Harry
9th May 2020 at 4:26 pm #4816610degrees-adminKeymasterOH thank you
10th May 2020 at 11:15 am #4817310degrees-adminKeymasterI’m still extremely stuck and I can’t see what challenge 5 is meant to reveal
10th May 2020 at 11:16 am #48174HarryKeymasterApologies, the earlier hint had a typo, and meant to say that Challenge 6A gives a hint for 6B.
How about this for a hint for 6A: try REFLECTING on the cipher text and see if that helps!
Harry
10th May 2020 at 2:32 pm #4818310degrees-adminKeymasterHi Harry, I am on 6b and I’m stuck. I think it is a transposition cipher, but it doesn’t seem to be working. I have also tried(which I’m pretty sure is not the right cipher) the Vignere Shift cipher, but that doesn’t work either. Any tips?
10th May 2020 at 2:33 pm #48184HarryKeymasterWhat did Phil say about it?
10th May 2020 at 4:39 pm #4818910degrees-adminKeymasterthank you
10th May 2020 at 5:16 pm #4819010degrees-adminKeymasterWhat do you mean by reflecting like looking back or literally reflecting.
10th May 2020 at 9:08 pm #4819310degrees-adminKeymaster@Harry I know the Nazis are using [Edited by Harry] but the Allies are using [and again] but I am unsure if the next message is between the Nazis or the Allies. [Well don’t expect me to tell you! You should be able to work that out using frequency analysis! Harry]
10th May 2020 at 9:08 pm #4819210degrees-adminKeymasterThank you Harry for the hint for 6A! I thought I’d never get it, now I did it!
11th May 2020 at 9:56 am #4819710degrees-adminKeymasterThanks Harry! It was quite obvious when I read through it carefully again! 🙂
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