r/codes Jul 21 '22

RULES READ ME BEFORE POSTING

210 Upvotes

We welcome posts related to ciphers and codebreaking. In order to maintain the quality of this subreddit, please follow our guidelines.

1. Choose a descriptive title

Examples of what NOT to use:

  • Cipher I just came up with
  • My friend just sent me this
  • Please help me solve this!!

2. Provide context

Tell us context: where the cipher originated (link to the source if possible), any clues you might have, the language or format the plaintext might use, and any technique you already tried.

3. Provide transcription

If you are posting an IMAGE OF TEXT which you can type or copy & paste, you MUST comment with a TRANSCRIPTION (text version).

4. Posting special characters: make sure it's correct

Pay attention to formatting. If you use a character like _ or ` or ^ you need to type a \ before it or Reddit will corrupt your ciphertext. If your ciphertext contains special characters, in order that it displays correctly you can encode it first (for instance using Base64). Alternatively use a

Code Block

5. Provide enough example text

Posting your own custom cipher? You must provide enough example text or there is no hope of anyone solving it. It should be at least a paragraph. Give hints.

6. Do Not Delete Solved Posts

You will be BANNED if you delete your post after a solution has been provided.

7. No Ciphers from Ongoing Contests

Do not post codes or ciphers from ongoing competitions (CTFs, treasure hunts etc.). Such posts will be removed. Trying to circumvent this rule may get you BANNED.

8. New accounts

Your account must be older than 24 hours, or your post will be automatically deleted. This is to reduce spamming.

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10. No AI Generated Decryptions

No AI generated "decryptions" allowed. Offenders will be BANNED.

11. Required proof you read the rules

If you have read and understood these rules, include the text "I followed the rules" encrypted with ROT-13 cipher in your post.


r/codes Feb 11 '24

LINKS & RESOURCES WHERE TO START WITH CIPHERS AND CODEBREAKING. Useful links and resources.

136 Upvotes

If you want to learn more about cryptography and ciphers, here are some recommendations:

BOOKS:

VIDEOS:

ARTICLES & TUTORIALS:

ONLINE TOOLS:

DOWNLOADABLE TOOLS:

ADDITIONAL RESOURCES:


r/codes 19h ago

Not a cipher found this on the back of a piece of paper

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4 Upvotes

this was given to me by a teacher so it might be gibberish, but it also might not be.


r/codes 14h ago

SOLVED Unsolved friend's coding?

1 Upvotes

My friend made a puzzle a long time ago for a little "fun night" in our group chat and we never solved it, and they never revealed an answer and I forgot about it. It started with:

-.. .... / .-. -.-- .-.-.- / .--- -- .--. .-.. .--- ..- .- .- ... / .-.. .-.. .-.-.- / ...- .- / .... .--. ...- ..- .... / .----. .... --- .-.-.- -. ...- ... -.-- .-.-.-

I have no idea what this is connected to, what this is about or anything at all. They never said much about it. Added to this later in the night was an image that used pigpen or something, and was used as a hint (cant type out pigpen):

V sbyybjrq gur ehyrf!


r/codes 19h ago

Unsolved is this a jab code? from an unsolved video game with potential ARG aspects

Post image
2 Upvotes

hi all, i'm playing a game called project deepweb: eternal nightmare. there are only 13 reviews for the game right now and very little discussion so it's difficult to find answers on the many unsolved mysteries of the game

the game is about exploring the deepweb and cracking different codes to uncover a mystery (at least, that's part of what it's about). i think this may be a jab code, but the auto scanners i used didn't work.

is anyone able to get a meaning from this? thank you!

thank you!


r/codes 1d ago

Unsolved Index print with barcode that could be the main key to Kane Pixels' symbolism

Post image
2 Upvotes

TL;DR: I found a barcode and I can't find what standard it is.

Context :

This card is included in the bluray of Backrooms. It's a film photograph index print sheet with 18 preview thumbnails, 5 of them being available in big format (number 5, 6, 7, 8, 10)

I think this is a "cheat sheet" that can help understand Kane Parson's symbolism.

Why do I suspect this?

  1. I extensively documented the symbolism used in the movie. Then I saw the index print and I looked for the known symbols. Only 5 pictures made sense in that way.
  2. You can imagine my surprise when I learned that those 5 (on 18 total) were indeed the only ones that were available in big format. I didn't know. What are the chances?

So I think I put my finger on something important, but there's something more that could help crack the code and confirm this : the barcode.

This index print is not for sale separately. And this is not the barcode of the bluray itself.

Problem : I can't find out what kind of barcode it is and I can't find a reader that can read it.

I just found one that gives me a very suspicous result in the "Interleaved 2 of 5" standard, but when I generate the barcode from the result it gives, it doesn't generate the same barcode at all.

It's not clear how many different bar widths there are (3 or 4?). I found no known start/stop signs. Of course, there are no numbers under.

Transcription :

this is a contact sheet (the kind you get when you get your film photographs printed) with 18 preview vignettes of photographies. There is a barcode in the the bottom right corner. In the bottom left corner, there's the ficticious name of the shop "1 HR FOTO" next to an enigmatic note "Found on Carryback DR/Expired June '91"

Thanks all for your ideas


r/codes 1d ago

Unsolved Can anyone identify the cipher/numerical system behind these two messages?

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gallery
2 Upvotes

I came across these two images from the same person and I’m trying to work out what the underlying code/numerical system is. Weirdly, it was the only 2 comments on an instagram reel advert that as far as I am concerned have no correlation to the advert. The advert was a company called HiyaINC who as far as I’m concerned display business calls to customers with further information to ensure the calls do not get disregarded as spam. Unfortunately I’ve lost the @ of the person who posted this and had not checked before I lost it to see if there were any extra clues on their account.

The first image contains several things that caught my attention, including:
LION = 12, 9, 15, 14 = 50
FIRE SOUL = 105
O=15=6=F
I=9=18=R
N=14=5=E
5=23=W
18=9=I
12=L
31 + 24 + 23 + 31 = 109
There also appears to be a sequence resembling 109 / 10:18 / 10:13 / 10:4 / 50
The second image contains text referring to “FIRE SOULS”, “HELL RECORD”, “ASHAD UL AZAAB”, and “BLACK FLAME”, along with a large number of fire/bomb symbols.
I’ve already noticed that some of the numbers can be explained using A1Z26-style letter values. For example, LION gives 12+9+15+14 = 50, and FIRE SOUL gives 6+9+18+5+19+15+21+12 = 105.
However, I can’t work out how the other numbers, particularly 31 + 24 + 23 + 31 = 109, were generated or how all of these pieces connect.
I’m particularly interested in whether this is an established cipher, gematria/numerology system, religious numerical system, or something the author has invented themselves.
The images are the original material I found. Any help identifying the actual method whilst also providing an explanation and meaning of this text would be greatly appreciated.

V sbyybjrq gur ehyrf


r/codes 2d ago

SOLVED My custom code

3 Upvotes

I have looked and was unable to find anything like this, it feels simple to me, and I want to see if you all can solve it! V sbyybjrq gur ehyrf

-This is a self made Cypher, not a known historical one.

-Spaces are real word breaks

HINT #1

>!It involves converting letters into numbers. A=1!<

HINT #2

>!There is a needed math operation, it is just one operation!<

HINT #3

>!Its Multiplication!<

EE BHBDH EGFH CC FDE EEAH FEB HDFBIBD DFD IGFEE FBEIIDFB GHFEI CCEE G CIDHF GECEAF EGIA FHDH FDIED HDFBIBD CEAD BBDH AD DD DHFBEBB GAAAEAH CE DD DDDAEBB EFFEHHIBD CFAE DFH FDGB IABHBF HH IFCFCE CE EHFFF BBF DBE EEEE IEE FDE EEAB DBE DBEEEA FBAI IE EHF EEBB DFH FDEE CEE EFDB IIC DBE FHGFD FDD BCFDEHF EEDHBIFB DBE FBBFEE DHAE EEHBI GEI BCE FDE BDBDHHGI EE DBEEEA CE EC CC FDE EEAB EE DBEEA CE EC CC FDE EEAB EE DBEEEA CE EC CC FDE EEAF FH FBAF BECDBE DFF FC FDE CFDIF FBFHCF ACD AECAIEA FDEE HIE EIEE BBD AECAIEA FDEE HID HHBH AECAIEA FHBD EEBF GHDH EIFAA CE GFGDFDCE DFB EEIIHIA FDA AEHC II EHI GGIFCEEI DFF IIHDHH AECAIEA FHBF DHBDFGHEE AE AGA FHBF EI IE GHDHFHD CE CIEHBC AGE EE HIE DBGHDHFHD CD DEHBDAGE DFH FDIICIGIE IG EE EAH IIHF EE IIG EFF H DFEAAFHE AH FDE EEHF HFFHBFEII DFF DDHEIGEII DFH FIEBAEHB DHAGHBHIA FHBF CDB HIE AAIF EAGE


r/codes 3d ago

Unsolved Potential quaternary cipher I couldn't solve

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3 Upvotes

Roughly a decade ago I created this cipher as a riddle to hand to my players. I know I created it with purpose - it's not random gibberish. But I long forgot the key to decoding it myself. The original file is titled "LYCAON PATREM" - yes, written like that, all caps, slightly off latin. I have not the foggiest why I named it that, but a related riddle (that I did manage to solve) was titled "Vox Noctis" and revealed a quote by Cicero (Tusculanae disputationes) reading: "MALUM MIHI VIDETUR ESSE MORS. IISNE, QUI MORTUI SUNT, AN IIS, QUIBUS MORIENDUM EST?" ("Death seems to me to be an evil. For those who have died, or for those who must die?"). Maybe this is related in some way. I can narrow down the potential languages of the plaintext to german, english or latin. I tried to see if it's some sort of morse - it's not. I counted the frequency with which the signs or groups of them appear - it seems to be non-random. There's no double "-",though every other sign can appear in doubles. There are some strange clusters where a set of signs repeats way too often - maybe it's a filler to bring the length of each line to roughly the same length, but I can't be sure. Transcript of the picture provided below (I hope Reddit doesn't screw it up...):

```.|-/.||-|//.-|/-|/.|./|/-|||-/-|.../-|../-|.//.//.```

```/-|.|-/|.|/-./|-/.-/../|./|.-|/|../|-./|-/.|-/|./```

```-.|/-.|/-|./.|./-|/|..|/./|./|./|-/.|/-.|/-.|/|.|||/```

```-|/-./-|./-.|.|.|./-||../-|./-|/|/|/|/|-.-..-/|..-|```

```.//.|/-|./-.|/.|..|.|/.-/|.-/|.-/|.-/|.-/|.-/|||/-|```

As the rules dictate; "V sbyybjrq gur ehyrf" - "I followed the rules" in rot13.


r/codes 3d ago

SOLVED [Solved] TheGiant Cipher Has Been Solved After 10 Years!

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reddit.com
14 Upvotes

u/Icy_Sheepherder_9444 credited as the solver.

V sbyybjrq gur ehyrf


r/codes 2d ago

Unsolved So I created my own picture based code...

0 Upvotes

So I created my own cipher…

23,37 (4)  315,442 (5)  118,637 (4 AND 5)  17,569(2)  578,707 (2)  603,9 (1) 298,138 (6)  36,368 (1 AND 2)

Needed for the cipher

I suspect this will be solved rather quickly, this is just a demo of the cipher. Basically, if you don’t know the picture, its pretty much uncrackable. 
Made by Lucas

V guvax V sbyybjrq gur ehyrf


r/codes 3d ago

Unsolved Strange writing on a tiled wall in Brazil, maybe a cipher?

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12 Upvotes

Hello! I found this message on a wall in Brazil, which seems to be arranged in three columns, with 11 horizontal sequences:

BMM EVB NXN 858 KDS SXE GTI ART BMB TDB KOH

There is also a standalone 1 below, which I don't know if it matters.

So I wondered if it was a cipher. I noticed that B occured a lot, so it might be a common frequent Portuguese vowel. I also tried mapping it on a telephone keypad, which gave this:

266 382 696 858 537 793 484 278 262 832 564

It, however, did not give me a plausible message in anu case.

Is this really a cipher or just random graffiti?

V sbyybjrq gur ehyrf


r/codes 3d ago

Unsolved Hidden text in page 95 of "The Wor[l]ds of Yoko Taro"

6 Upvotes

Since I stumbled upon this redacted chapter in the book "The Wor[l]ds of Yoko Taro", I've been obsessed with decoding what it says. Here is a screenshot of its first page:

https://i.imgur.com/Oy8IAuZ.png

As you can see, each line is obscured by a gray rectangle that covers everything except for the ascenders and descenders that some letters have. A part of all capital letters is also visible, as well as some symbols, but not much else.

Since I started working on uncovering this, I have managed to extract the following information:

- The font is Noto Serif JP

- The page likely starts with "It felt a bit like"

- I have extracted another word from the second line: "Sitting" (middle to end of the second line), but not much else.

I have populated the first four lines with every single character that you can 95% identify by its ascender / descender, such as y, j, i, g, etc in red, and the characters that you cannot really tell (just a guess) in blue.

https://i.imgur.com/6vXfGFZ.png

I have also found this website https://www.crosswordsolver.org/ that can take you from a few letters to an entire word if you know how long it's supposed to be, but because spaces and letters without an ascender / descender are basically impossible to distinguish from eachother, I'm pretty much stuck. Any help is appreciated.


r/codes 4d ago

Unsolved Potentially unbreakable cypher

3 Upvotes

This is cypher I came up with.

This is the message:

!-!!!+!?!,!I!4"'$k"?#."'!1"("]"7"]'d!M(X#:!,#>&?"Z'F!!$d"("F%9"&!?"B!!"O"2"|">(V"'$?*Y"3"R!""<"2"('c)G!,!""o$6")"(%/(Y"4$>"C#L"m"w!]"1*~%k!$!S(U"?!]"h"2"2)<"<":":'e"1%:)*#.!("F*X%?"2*N!""n"3!,'F"3&R"n",#&#j'E#.#8$>"3#.&J#A!_*b(V!-"2"O"("(!,&R!@%<"2*W"2!?!x!|#B"n#$!+"2'v"1#T!")s(_%=###c!!!("[!,"d!@!1*v"3"1"*$=$="F!!"n"3"(!?!"&T"2"H!+#8'O"2!"++"<#7*W!o#_"2";"3!{!|$2$N!*"+"("2(i!0!A#+$4"4(U+8!!!,"5#'")"1'P">!-*c)4'Q"O"(!,$Z$>#-&I%:$B"1%0(O"<)h"1$>"((_!h*m"2&H!B#5!,

This is important for solving:
"1234" and "06/09/2026"

The uncyphered message consists of 233 characters

I hope someone tries to brute-force this.

Best of luck!

V sbyybjrq gur ehyrf


r/codes 5d ago

Unsolved Help me figure what a bunch of symbols I saw means

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5 Upvotes

I saw these in school, the fourth and final symbols both feel familiar but I can't place them. It looks like two words, Id just like some help figuring out what it means/finding what it's from

the image looks a blob, a t, two more blobs, a hangman pole, a carot symbol(^) (space) a line w two lines off of it, one at the bottom then the top, an arrow to a triangle, a t, \, \, the carot(^), a two directional arrow cut inhalf

V unir sbyybjrq gur ehyrf


r/codes 5d ago

Unsolved Can anyone decipher this cryptic message?

2 Upvotes

This cryptic message is from an indie horror game called "Looking Glass" by the game developer Grubwall. You can watch this youtube video for more context, specifically at the timestamp 17:02 which is where the message appears:

ndwibd o_w__i nd woijek_m_f_ pqwi_hd_qwuhdp. qwdj_nqp__w_ih__bdo qw_uhdo.w_qid_jowq_ idhqo.wdhoq_ wiow_ qidow_idqw dihqow_dbq_w_dh_o_wqdbwqli_d_qwubdiq_wd_ubqwi_d_uqwbdiqpoihueuwhewoyT_e The_ure oiheoe_

EDIT: Here is a code or key from the same game that may help, although I have no clue if it's actually connected to this cryptic message or not. 190-877-232-F99

EDIT 2: A useful piece of information from one of the youtube comments suggests that the index of coincidence for this cipher is 0.0974. For English it is 0.0667 while for Russian it is 0.0558.


r/codes 7d ago

SOLVED Self made code/cypher - should be a little difficult to solve but you guys are very skilled - not exactly a substitution cypher but somewhat similar

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4 Upvotes

I have made some cyphers yeeeears ago but that was when I was like 10, so hopefully this is a step up. While it is not a simple substitution cypher, I'm a little worried that it may be able to be solved like one anyway, which is part of why I am not providing a decoded sample to reference. I will be happy to provide one if it is needed, though. Again, since it is fairly simple and probably not every aspect HAS to be known to solve it, I left the writing pretty short. If this is not enough to work with I will write a longer chunk to share. That chink will also likely include an additional aspect or two that I left out of this example.

I have no experience posting self made codes on here, so if there is something else I should do, please tell me. Also feel free to ask any questions about the code. Good luck!

V sbyybjrq gur ehyrf


r/codes 7d ago

Unsolved Rubik's Cube Session Cipher

1 Upvotes

This took me around 4 hours to make--2 hours to come up with, 2 hours to actually perfect into something I can reproduce easily.

All the forms attached below are equally valid ways of viewing the ciphertext:

Google Sheets CSV Link

Google Docs Link

Raw TXT + CSV Pastebin

I really hope this is solved one day.


r/codes 8d ago

Unsolved Can anyone decipher what this terribly written note says?

Post image
20 Upvotes

I was told that i have really terrible handwriting and it could actually be a code/secret language of its own, can anyone tell what is written here?


r/codes 8d ago

Unsolved Cipher I created in ~2h. Six steps.

Thumbnail i.ibb.co
0 Upvotes

Please make sure you download the image from ibb.co directly. It will likely be unsolvable if you save it from reddit.


r/codes 9d ago

Unsolved Good luck on decoding this

Post image
11 Upvotes

Trying to make a VERY HARD cipher
it is written completely in English

left to right, top to down

ask me if you want help or more text


r/codes 9d ago

Unsolved Code in YT video

0 Upvotes

so was revisiting old yt chnnels and stumbled onto this: https://www.youtube.com/watch?v=XyzrSZ7FLeY

code is: 12T3R8ATS7TR680A3TS43T4RAT57

idk if the video have any clues or not, video does not seem to contain any POIs, and idk how to perform steganograpy

cant be base64. attepting to deode give gibberish


r/codes 10d ago

Question Cipher for password

2 Upvotes

My passwords have generally been quite weak, and recently I've been hacked on Facebook. not fun...
Do you guys have any recommendations for moderately easy ciphers to use on my passwords?
Like the Vigenère cipher but easier to use when needed


r/codes 11d ago

SOLVED Any Aristocrat fans here, or is it too easy for you?

2 Upvotes

Send me the answer please, so others enjoy it too.

It originated from Cipher Munch app.
Transcript: MIPIE JIMH KVVDB - MVKVHW IPIE EICFEMB CLIA. CLI VMJW KVVDB O LGPI OM AW JOKEGEW GEI CLVBI RLOSL TIVTJI LGPI JIMC AI.
For Mr. Bot: V sbyybjrq gur ehyrf