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Rosetta Stone

56.9k bjac0  7.8 years ago

Nice, you followed the cipher to the right spot, here are the instructions for the next, do not misread.

Here's the "Rosetta Stone" of the next cipher
You'll need a calculator and a Caesar cipher wheel

The cipher is basically a dynamic Caesar cipher, where every letter typed adds to the alphabetical shift by its corresponding numeric place in the alphabet, so here's an example:
So A B C D E F G becomes A C F N C G O
1+3+6+14+3+7+15=49
But G A B C D E F becomes G H Q I S M A
7+8+17+9+19+13+1=74
As you can see the message becomes more unpredictable the further it goes, making long stringed messages take possibly hours to decode by hand, but i'm sure an algorithm could decode it quickly.

In order to decode it you have to add up each letter like so
A C F N C G O 1+3+6+14+3+7+15=49
then decode from back to front, if you end up with the first letter being different, you messed something up.
Your order of operation for this should look something like this:
1+3+6+14+3+7=34+O=G
1+3+6+14+3=27+G=F
1+3+6+14=24+C=E
1+3+6=10+N=D
1+3=4+F=C
1+C=B
A(the first letter of a sentence stays the same

See if you can decode this: JJSL
Hint: A Type of music

Shorthand numeric adder:
A+1
B+2
C+3
D+4
E+5
F+6
G+7
H+8
I+9
J+10
K+11
L+12
M+13
N+14
O+15
P+16
Q+17
R+18
S+19
T+20
U+21
V+22
W+23
X+24
Y+25
Z+0 (Would be 26 but that just turns the cipher wheel 180 and doesn't do anything, so ZZZ would stay as ZZZ)

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  • Profile image
    34.1k Hayhayjam664

    Ok :D @bjac0

    5.6 years ago
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    56.9k bjac0

    @Hayhayjam664 next puzzle should be up in 12 hours if my schedule doesn't change

    +1 5.6 years ago
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    56.9k bjac0

    @Hayhayjam664 actually, i chose jazz cause its the hardest word to guess in hangman, just to make sure no-one luck guessed it, i'm not getting that cryptic yet

    5.6 years ago
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    34.1k Hayhayjam664

    HOLLY JAZZ! XD @bjac0 now to figure out where that leads me XD I will get back to you on that one. Well there is nothing to do with jazz on your YT that I have so far seen and I can’t find anything on the website I have searched jazz and I searched jazz and your name hmm
    I will keep looking XD

    +1 5.6 years ago
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    56.9k bjac0

    @Hayhayjam664 well, to decode the last letter in that, your order of operation should be
    (j)10+(k)11+(U)21=S+42
    P+42=Z

    +1 5.6 years ago
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    34.1k Hayhayjam664

    ; ) lol I’m still not doing something right I’m now getting jpeJ Xd @bjac0

    5.6 years ago
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    56.9k bjac0

    @Hayhayjam664
    JKUP

    +1 5.6 years ago
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    34.1k Hayhayjam664

    Ok, thanks ; ) @bjac0

    5.6 years ago
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    56.9k bjac0

    @Hayhayjam664 i don't think i actually made the cipher properly, i'll give you a fixed version

    +1 5.6 years ago
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    34.1k Hayhayjam664

    Lol I got jzyo, oedt and jpfm XD I don’t think I have done it right since none of these have anything to do with music. Lol I dunno I have been sitting here for like an hour now XD I keep getting confused when I get to the order of operations bit

    I copied and pasted my notes Xd

    10+10+19+12=51 j
    10+10+19=39 j = w
    10+10=20 s = y
    10+l = b

    10+10+19=39
    10+10=20=y
    10+J=z
    J

    Jzyo

    10+10+19+12=51+l=m
    10+10+19=39+s=f
    10+10=20+j=p
    J

    Jpfm

    5.6 years ago
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    Dang

    5.6 years ago
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    Dev WNP78

    Still on a Caesar cipher? 1. try to move it away from current forums cause it's filling them up a bit. 2. try something like a viginére cipher, there's some useful info here. but you can get stuff from practically everywhere.

    5.6 years ago
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    6,125 Hypn0

    @Oski why

    5.6 years ago
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    10.5k Xenotriver

    Yeah great buy I can't decode it XD

    5.6 years ago