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The Devil’s Cipher revived

  • This topic has 17 replies, 6 voices, and was last updated 1 week, 4 days ago by Mattyrat2027.
Viewing 6 posts - 16 through 21 (of 21 total)
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  • #68764
    The-Letter-Wriggler
    Participant

    But @Mattyrat2027 sinkrad says he has solved it and way back on the 22nd November too!

    It seems like Awesomeness is not here to answer.


    @sinkrad
    you could put up a MD5 of the plaintext for now as your proof, and a check for if anyone else gets it, and you could take over as the hint giver.

    Hope you will give solution and plaintext at a later date.

    #68769
    The-Letter-Wriggler
    Participant

    @sinkrad do you mean like this?

    From the 320 unique numbers
    172 of the numbers are divisible by 2
    110 of the numbers are divisible by 3
    91 of the numbers are divisible by 4
    69 of the numbers are divisible by 5
    52 of the numbers are divisible by 6
    45 of the numbers are divisible by 7
    41 of the numbers are divisible by 8
    36 of the numbers are divisible by 9
    41 of the numbers are divisible by 10
    32 of the numbers are divisible by 11
    31 of the numbers are divisible by 12
    16 of the numbers are divisible by 13
    26 of the numbers are divisible by 14
    27 of the numbers are divisible by 15
    0 of the numbers are divisible by 16
    20 of the numbers are divisible by 17
    16 of the numbers are divisible by 18
    21 of the numbers are divisible by 19
    19 of the numbers are divisible by 20
    15 of the numbers are divisible by 21
    20 of the numbers are divisible by 22
    19 of the numbers are divisible by 23
    14 of the numbers are divisible by 24
    17 of the numbers are divisible by 25
    7 of the numbers are divisible by 26
    12 of the numbers are divisible by 27
    13 of the numbers are divisible by 28
    6 of the numbers are divisible by 29
    13 of the numbers are divisible by 30
    10 of the numbers are divisible by 31
    0 of the numbers are divisible by 32
    11 of the numbers are divisible by 33
    9 of the numbers are divisible by 34
    10 of the numbers are divisible by 35
    10 of the numbers are divisible by 36
    6 of the numbers are divisible by 37
    8 of the numbers are divisible by 38
    4 of the numbers are divisible by 39
    10 of the numbers are divisible by 40
    11 of the numbers are divisible by 41
    9 of the numbers are divisible by 42
    5 of the numbers are divisible by 43
    9 of the numbers are divisible by 44
    11 of the numbers are divisible by 45
    12 of the numbers are divisible by 46
    9 of the numbers are divisible by 47
    0 of the numbers are divisible by 48
    7 of the numbers are divisible by 49
    8 of the numbers are divisible by 50

    #68776
    CosmicCat
    Participant

    Wow, fantastic work @sinkrad.
    I somehow missed that you solved this back in September (I think the forum stats are a bit wonky).
    I originally attempted this over a year ago and was resigned to the thought that I’d never know the answer.
    Based on your hint I also performed the same calculations posted by @TLW above.
    The thing that stood out to me is that none of the 320 distinct values are divisible by 16.
    In binary terms this means that every value has at least 1 bit set in the bottom 4 bits.
    The range of values is 18-3986, which needs 5 bits min and 12 bits max to represent.

    I still haven’t figured out anything that fits though.

    (Incidentally my efforts with this cipher have not all been for nothing, one of my failed ideas turned out to be the method used in madness-2021-1!)

    #68778
    madness
    Participant

    @CosmicCat, I said no hints!

    #68791
    Mattyrat2027
    Participant

    Sorry @TLW, I hadn’t seen that. Well done @sinkrad!
    But if it’s binary we’re dealing with, I’m done for.

    #68796
    CosmicCat
    Participant

    It’s only taken a year but I finally got it.
    I was in the process of writing a response to @Mattyrat2027 to say it’s not necessarily binary when I realised I hadn’t actually tried the most obvious conversion based on the observation above.
    Thank you @sinkrad for that little nudge in the right direction.


    @madness
    , sorry – I wasn’t thinking.

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