X6JR0F5AD7WRF8HQNMSEFAV2GY9KWWP4TAC1I5T0Z5BQO11FW1MMOTNEOPBIJXANZ5EXPXE639R4SGZUK3VUSSDLXXJDEUWQMNYONO8TU77GT32MBGQWNL46CHGM03ZYBZ825QQYRLDJGZS3KFL4D036CXVGCAMXMPCVPT4G6IPW465ZYM7LYCAP6EUO2H3ZGDKKXOOHM2Z6FC6R7GN7NE5U3WLQ67BKN484PHL7K0W1CBU660AXSTE89Q8ADBCXG4TNB1LZ6D9YNXAS3M52YIF35K8FWREC8Q3TC31Q2I7MT821B151U3Y7J9RSOJKGVWC4HL3D87HEZ3UCE64AWDIMA0QAV3GT10F7BYO2GEQ1E1LZAYD4UNJDW795XRAMNPM9Y6XASX9WHLN8XLJI7E0RCYKJXNK7PRO6HHIF12K3ZYO7QE

Spaces are replaced with '4' before encryption

Can anyone tell what this means

The various length dashes makes me think old school American Morse, but I still can't make sense of how to parse the bit in the middle.

A large church in Texas had used it repeatedly for decor during a youth event. It had been printed in all manner of directions, so this might be upside down.

This is from Diablo 4 - it can be found at Temis it is south west of the teleporter in the city ( on the third tier down ).

Thank you : ) !

Im calling it a song cipher and works on any instrument. Long means it's capital, short means lowercase. Also please give me feedback so I could improve the cipher

last two ciphers are fairly simple but the first two are from around ww1 by two opposed countries. good luck!

SZXOWXYNXDVX

How Ordinairy of you, you, Who Litters my perfect playgrounds.

Punctual, as Intended, Remain Anchored Towards your goals my friend.

I have always liked the thought of making my own code. For what reason I don’t have one and I made it on break at work. I believe it would be really hard to break by hand. If a computer got involved and it was a longer text it would be no problem to break. I want some feedback and see if anyone could crack it.

Hint: it is the start of a book I (red) back in school

It is not a secret at all in would be more then happy to explain what it means and how I made it.

It took a lot of try and error to make it work just with Unicode, but I'm glad it worked out, because I am too lazy to make my own font for this.

The plaintext is English. I can read and write this* without any tools** or helpers. And let's be honest, my memory, both in ability to memorize things and working memory, is shit.

*) in handwriting. to convert it to Unicode, I built a tool

**) pen, of course

Transcript:

a' iaca^i^i^cic oo^cc' i^a a^i a^auxo^io^i^ii^i^i^ca^c iao^c^ix' ao' iico^i^iioa^i^i^cu uoa^u i^ua iii_xa^i^ui^ux' ioxc^i^uc^iua a^ix^uoi^iiii, i^iiiccu^c^ii^iiii ci^i^i^iou, ai_xo^i^i c^aiica^i^oi^iiii. 
a^ciac^xu c^i'i_auc^i'i_a uoc^o'xx' o^a^i iiic^ic^xa^c xc^ca^ui^i^ui^ux', ui_oi^i^i^co cic^aiicxi^i^ac^a iii_xa^i^ui^ua^ui^o'i a^a uoc' iicu^xiua^uu^xc' o^a^i a_i_oa^i^i^cc^ui^i^ic', 
ioxc^c^ii^i^i^cua uoa^u a^ix' au^a^iaii^i^i^ci^c'i_ucx' iico^i^iioa^i^i^cu iia^aa uii^cc aio^xii a' iaca^i^i^cic oo^cc'. 
uoc' iao^u'i_c_ia^xx' o^a^i io' c^aiica^i^oc' i^a iica^ccc^c^i uoc' c^i^uc^iu oo^xi^x^io^i. 
i^i iiic^ic^xa^c xc^ca^ui^i^ui^ux', iicxo^aai^iiii a' iaca^i^i^cic oo^cc''a c^i^uc^iu oo^xi^x^io^i uxa^i^oa a^i o^i^aaiic^i^i^cu i^iai^c^ic' iau^u ioxo^c^iu^i^i^cc^a io' co^i^i^ca^ccx' cic^uc^i^i^cua^i^acc' iicoa^iiiic'. 
iiic^ic^xa^c xc^ca^ui^i^ui^ux' a^cao' ioxc^c^ii^i^i^cua uoa^u c^i^uc^xx' iaca^i^i^cic oo^cc' aoo^u'cci oa^i^uc' a' iicc^iuxa^c ai^iiiiu^ca^xi^ux', ui_oc^xc' uoc' iicu^xiua^uu^xc' o^a^i a_i_oa^i^i^cc^ui^i^ic' i^a i^iaii^ii^uc'.

iaca^i^i^cic oo^cc^a ux^i^oi^i^i^ca^ccx' aio^xii a^a ioa^xu o^a^i a' au^i^oc^xio^i^ua' c^i^uc^iu ui_oc^i iia^aai^i^uc' aua^xa iico^cca^i^oac' a^u uoc' c^ici o^a^i uoc^i'x ci^a^ic' iicx^i^i^ccc'. 
a^a^iuc^x a' iaca^i^i^cic oo^cc' oa^a aio^xiic^c^i, i^u iica^i iii_xo^u^i iax' a^i^aao^xiai^iiii iia^aa ai_xo^i^i i^ua au^xxo^u'i_c_ii^iiii_a. 
au^i^oc^xiia^aai^i^uc' iaca^i^i^cic oo^cc^a o^a^i iii^cci^o'i_a o^a^i ao^ca^x iia^aac^a iia^x' aio^xii iax' a^i^aao^xiai^iiii aua^xa a^ici iic^xiiii^iiii uii^uo o^uoc^x iaca^i^i^cic oo^cc^a, 
o^x iui^a' cii^xc^i^i^cu iico^cca^i^oac' o^a^i iiia^a iicco^u'ci_a. uoc^xc' i^a iico^iac^iau^a uoa^u au^i^oc^xiia^aai^i^uc' iaca^i^i^cic oo^cc^a c^i^xi^au i^i uoc' iicc^iuxc^a o^a^i iio^au iiia^ca^i^xi^c'a.

oiu^a'i_uu^i^i aii^c'cci uoc^o'xx' i^i iicu^xiuc^c^i a_i_oa^i^i^cc^ui^i^ic' ioxc^c^ii^i^i^cua uoa^u c^i^uc^iu oo^xi^x^io^ia c^i^ii^u oa^u^iici^iiii xa^c^ii^a'ui^o'i, 
uii^uo uoc' xa^uc' o^a^i c^i^ii^aai^o'i iac^i'i_i_i_i i^iiuc^xac^cx' ioxo^i^oo^xui^o'ia^c uo' uoc' iia^aa. 
uoi^a iica^u'ac^a uoc' iaca^i^i^cic oo^cc' uo' co^ac' iia^aa iuc^xx' aco^u^icx', ioxo^i^ui^c^ic^c^i i^u i^a io^u a^i^i^ciicxc^ui^iiii iia^uuc^x. 
oo^u^ic^i^uc^x, c^i^uc^i uoc' a_i_ia^ccc^au iicca^aa o^a^i iaca^i^i^cic oo^cc^a o^i^aac^xiuc^c^i, auc^cca^x iaca^i^i^cic oo^cc^a, 
a^xc' iiia^i'ii^iiii iia^aa ai_xo^i^i uoc' iico^aiii^i^i^c iii^i^i^cxo^u^ia^i^uc' iaa^i^i^cic_i_i_ixo^u'i_c_i aia^auc^x uoa^i uoc^x' a^xc' co^ai^iiii iia^aa iui^a' oa^u^iici^iiii xa^c^ii^a'ui^o'i.

KysrKysrKysrK1s+Kz4rKys+KysrKysrKz4rKysrKysrKysrPDw8PC1dPj4+LS0tLj4rKysrKysrKysrKy4tLi0tLS0tLS0uKysrKysrKysrKysuLS0tLS0tLS0tLS0tLS0tLS0uKysrKysrKysrKysrKysrKysrKy4tLjw8KysuPj4tLS0tLS0tLS0tLS0tLS0tLS0uKysrKysrLi0tLS0tLS4rKysrKysrKy4rKysrKy48PCsrKysrKysrKysrKy4tLS0tLS0tLS0tLS0uPj4tLS0tLS0tLS4rKysrKysrKysuKysrLjw8Lj4+Ky4tLS0tLi0tLS4rKysrKysrKysrLi0tLS0tLS0tLS0tLS0uKysrKysuLS0tLS0tLS48PC4+PisrKysrKy4rKysrKysrKysrKysuPDwuPj4tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLisrKysrLi0tLS0tLS0uKysrKysrKysrKysuLi0tLS0tLS0uKysrKysrKysrLi0tLS0tLS0uLS0uPDwuPj4rKysrKysrKysuKysrKysrKy4tLS0tLS0tLS4tLS0tLS0tLS0tLS4rKysuKysrKysrKysrKysrKy48PC4+PisrLisrKy4tLS0tLS0tLS4=

Layer 1's Hint a cipher that requires some kind of table or a online decoder
Layer 2's Hint its some kind of base, but its not a number system
Layer 3's Hint a cipher with a swear in its name, and also includes a bunch of punctuation and math symbols like . + and -

A mix of Homophonic Substitution Cipher, a little bit of Polysemous/Polyphonic Overlap, some Affine/Atbash Shift with a Shift Frame and Null Insertion

H92FT91R924001666B024I63G222P973000X070W58UI59GH92F

Posted my cipher in another subreddit (no cheating! ;) and someone suggested I post here, so I created this little challenge if anyone is up to try and solve it. There should be enough context in the image to solve it if you're at all familiar with cryptography, I'm sure you can crack it :)

J vfcp txx, yks cp uhh waeq au Tzdvl?

it's a two-coded message, one using a popular cipher, and the other one bing "a cipher associated with disks, but not being a disk cipher"

So I am playing in a dnd group and our DM gave me a letter to decode, it is just for roleplay, something extra we found in a letter just for added lore and such, he says it is crackable but I am a little stumped. The code is this:

11 15 22 26 8 22 22 3 24 6 8 22 14 2 23 22 26 9 26 6 13 7 8 26 15 15 2 8 19 22 26 24 24 18 23 22 13 7 26 15 15 2 11 6 13 24 19 22 23 7 19 22 11 9 18 22 8 7 4 19 18 15 22 26 7 7 22 14 11 7 18 13 20 7 12 9 22 8 6 8 24 18 7 26 7 22 7 19 22 8 7 9 26 4 18 13 22 8 10 6 26 9 22 11 6 8 19 13 12 9 7 19 15 6 3 18 12 25 15 6 9 9 6 13 26 9 14 26 23 9 18 15 15 26 13 19 2 5 26 6 13 7 23 6 20 9 7 18 12 9 19 2 19 12 9 13 4 26 5 22 7 26 16 22 19 26 15 25 22 9 23 8 4 12 9 23 8 19 18 22 15 23 26 3 22 6 11 6 11 23 22 14 26 13 23 20 15 18 13 7 18 13 20 8 7 9 12 13 20 4 22 26 11 12 13

Hello! can you solve the cipher that I make? I think it's solvable for you cipher enthusiast anyway here is the encoded message (sorry if it's bad, im still a kid, and just making silly little thing)

"LIMANOVEMBERCHARLIEQUEBECZULUHOTELZULUNOVEMBERINDIAZULUFOXTROTPAPAROMEOFOXTROTTANGOQUEBECQUEBEC"

LONGER "LIMANOVEMBERCHARLIEQUEBECZULUHOTELZULUNOVEMBERINDIAZULUFOXTROTPAPAROMEOFOXTROTTANGOQUEBECQUEBECINDIAQUEBECZULUJULLIETZULUZULUXRAYLIMANOVEMBERTANGOZULUROMEONINDIAZULUROMEOCHARLIEXRAYFOXTROTROMEO" i may or not misplelled it

(Hint I scrambled the alphabet in the coordinate grid, what i can tell you is the first letter is c and the last is r(first word))

I just made this substitution cipher for fun, and I was wondering whether an ciphers enthusiast could decode my cipher, so I decided to make this post, also, it's very basic, as i'm still a kid

Here's the message "IC/IM/SC.CS/SC.CS/SC.IM//SC.IC/IM/IB/IB/CS.BM"

I’ve been looking at Z13 as a rebus or clue puzzle rather than a standard substitution cipher.
My working idea is that the symbols are clues and instructions, not simply encrypted letters.
The accepted transcription is:
A E N ⊕ ⑧ K ⑧ M ⑧ ⊥ N A M
My interpretation
AEN represents an incomplete name, not plaintext.
The Zodiac crosshair isn’t a letter but simply identifies the author as Zodiac.
The three repeated circled symbols may be separators, leaving K.M. between them.
K.M. could potentially stand for Killer. Murderer. (this is the weakest part of the theory and I’m not claiming it’s correct).
The upside-down T is not a letter but an instruction.
The ending NAM isn’t missing an E. Instead, I think it’s deliberately referencing the word NAME, telling the reader that the name is incomplete.
In other words, I don’t think:
NAM → NAME
I think:
NAM = “the name is incomplete.”
That instruction then points you back to the opening clue:
AEN
I believe AEN itself is the incomplete name clue.
One possible interpretation is:
A = Arthur
E = LEigh
N = alleN
These are identifying letters taken from each part of the name rather than the name itself.
That leads to:
Arthur Leigh Allen
I’m not claiming this proves Arthur Leigh Allen was the Zodiac. I fully appreciate that AEN could fit other names as well.
My actual hypothesis is that Z13 may be providing clues to reconstruct a name rather than directly encrypting one.
Questions
Has anyone previously suggested the upside-down T is an instruction rather than a cipher symbol?
Has anyone proposed the circled symbols are separators rather than letters?
Is there evidence for or against Z13 being a rebus or clue puzzle rather than a substitution cipher?

Important info (transcription at the end) :

- The plaintext is in English, might contain slight grammar errors since I'm not fully fluent (shouldn't contain spelling mistakes tho)

- Cipher does not distinguish between lowercase and uppercase, contains only a-z, no numbers, no spaces

- Only substitution was used, no transposition

If you have any additional questions or need more hints, please ask in the comments, I am willing to provide anything needed!

Transcription of the cipher ( white=0; black=1; dot=2):

220212122200100012101111022110
202101122020100200121001110220
001002100221212022110101011112
221101112200001220110022221110
010101010022010101111011122222
001101011010100120010110020111
022222002020001012100211101012
100020022011002200100002110101
120010212010020200100100222100
010010100200110101211101202111
022011010100002202111200200100
202010222212220212110022221110
010101010022010101111011021100
212020001110110100012100011020
022011002200100002010121100011
010212011101011100022011101201
022100110212220221111222110101
020001012100220001002100001220
101110010001021100001010211101
200110010200111121202111222022
220011211101012100101010110020
111022222002221100010121100011
010212100101112020010011111010
100101112020010100100011101002
111011010021011111121101211010
020101110020100222122110212111
022202200001202021010020100202
101122020100200221022010101020
111122100101010121101222222112
111111002102111221121101010020
010020101110111011100101001220
101220122200100110110100002000

Part of a project that needs helping cracking a code. I think its missing another cipher. Here is the original code and the translation from Hex to ASCII, any thoughts after this?

O: 4D 44 58 59 53 54 54 54 50 47 45 48 51 51 51 51 44 4D 43 44

Hex to ASCII: MDXYSTTTPGEHQQQQQDMCD

My S/O gave me some sort of puzzle thing? He says I need to figure what it means with a 24 hour time limit but I’m almost convinced he’s just messing with me! Please help!!

EE! IGHOMLTY,IYGHOYTM

Genuinely idk what this could be, I’ve pasted it exactly how it was sent it to me

On Heuristic Structure Extraction in the Diagapeyev Cipher

The Diagapeyev Cipher is an unsolved transposition cipher challenge published in 1939. To date, no official solution, decryption procedure, or verified plaintext has ever been published.

The original challenge consists solely of the following numerical ciphertext:

75628 28591 62916 48164 91748 58464 74748 28483 81638 18174
74826 26475 83828 49175 74658 37575 75936 36565 81638 17585
75756 46282 92857 46382 75748 38165 81848 56485 64858 56382
72628 36281 81728 16463 75828 16483 63828 58163 63630 47481
91918 46385 84656 48565 62946 26285 91859 17491 72756 46575
71658 36264 74818 28462 82649 18193 65626 48484 91838 57491
81657 27483 83858 28364 62726 26562 83759 27263 82827 27283
82858 47582 81837 28462 82837 58164 75748 58162 92000

Our recent study investigates the structural properties of this cipher using heuristic optimization, including simulated annealing and hill climbing, rather than assuming a predetermined decryption method.

The paper, source code, and experimental data are available below.

The search framework combines:

• Simulated Annealing
• Hill Climbing
• Genetic Algorithms
• Trigram-based Russian language scoring

to optimize a 6×6 permutation matrix representing the transposition structure.

After approximately 682 million candidate evaluations, the search repeatedly converged on high-scoring reconstructions exhibiting structured Russian-like text fragments. While these reconstructions do not constitute a complete decryption, they display military terminology and grammatical coherence that scored significantly above random baselines under our evaluation framework.

Statistical Validation

Key Findings

Statistical Extremity Our Monte Carlo null-hypothesis test (N = 10,000) shows that the observed configuration lies in the extreme upper tail of the empirical null distribution (p_tail ≤ 10⁻⁴), indicating the detected patterns are highly unlikely to occur by random chance.

Methodological Rigor The search framework leverages a trigram-based language model trained on a Russian reference corpus to evaluate local linguistic dependencies.

Emergent Patterns The observed military terminology is an interaction effect between the scoring function and search dynamics, providing a formal framework for further cryptographic analysis.

Example of the Highest-Scoring Reconstruction

ВОВ: БОЕВАЯ ЗАДАЧА УСТАНОВЛЕНА,

ПОДРАЗДЕЛЕНИЯМ НАЧАТЬ ДВИЖЕНИЕ В

СЕКТОР А.

English (approximate):

"WWII: Combat mission established. Units begin movement toward Sector A."

This translation is intended only to illustrate the linguistic structure detected by the optimization and should not be interpreted as a confirmed plaintext of the original cipher.

Paper

Title: On Heuristic Structure Extraction in Under-Specified Transposition Ciphers: A Case Study on the Diagapeyev Cipher

DOI:https://doi.org/10.5281/zenodo.21132297

GitHub:https://github.com/IchiTaku326/Diagapeyev-Cipher-Solver

I am not claiming a complete decryption. Rather, this work presents a statistically validated heuristic framework for investigating an under-specified historical transposition cipher.

Any methodological feedback, criticism, or independent verification would be greatly appreciated.

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edit: spaces got stripped, the title was supposed to be: N ew c i p h er!!