/r/codes

Photograph via //r/codes

Hiding data, cracking codes, finding hidden messages. We welcome posts that aren't as suitable for /r/crypto, such as basic cipher-cracking challenges and discussions of simple data hiding.

ABOUT


Hiding data, cracking codes, finding hidden messages. We welcome posts that aren't as suitable for /r/crypto, such as basic cipher-cracking challenges and discussions of simple data hiding.

WHERE TO START


USEFUL LINKS & RESOURCES

RULES


  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.

  9. No Bots
    If your bot is not auto-banned on r/codes, it will be banned by a moderator. You can still have a bot on other subreddits; just don't use a bot here.

  10. No AI Generated Decryptions
    Please, refrain from posting decryptions generated with ChatGPT and similar AI programs. Such posts and comments will be removed. Repeated breaking of this rule will get you 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

131,657 Subscribers

56

a code i used when i was younger but have completely forgotten now

can anybody help decode what 8 year old me was saying? i’ve completely forgotten. i feel like it can’t have been very complicated given how young i was.

10 Comments
2024/12/04
01:39 UTC

4

In 2014, a YouTube Channel named Arcus Grid uploaded a series of 96 encoded videos, then went silent. Despite a couple of different attempts at decoding it on Reddit, the meaning remains a mystery.

2 Comments
2024/12/04
00:54 UTC

6

Old backrooms video caught my eye and there are many codes.

At timestamp 5:48 this cypher/coded text appears on screen. I will link the video here for anyone else who may want to check this video out as it's pretty cool. At another timestamp there is Morse code that I can translate myself but figured I'd mention that because it does translate to actual words. Therefore, I think this does too. I'm a beginner at codes and cyphers so symbols like this I'm not the greatest at.

The video link is: https://youtu.be/hjkv-MLLXzs?si=-qrLB2SqMeSLUkWZ

2 Comments
2024/12/03
15:07 UTC

1

Found inside a very strange book

Image This is one page from kind of an afterward to the Codex Seraphinianus. Most of the book has writing in random squiggles and such (it's a very strange book) but this part looks significantly different. Besides that, the first page of it starts with a poem about word puzzles. The 2 most frequent letters make up over 1/3 of the whole thing, so that might suggest it's just gibberish. What do you guys think?

([Transcript] if you want to analyze the statistics or anything. Which letters go to which symbols is based on nothing in particular) Picpeabcpe hbaqgkife pcpeoc pc cpoeopp bass Phcpscp cp cpc cbgbkcd pgpbc gpo cpbpgccgcp Eohpcd gpd cdpfabjg cp cp cpoea zaepdcpbsd qqsd Oehop cpb pc cp eqpcakiii p Qbaljki ephc cp ccp p opsg Ohepcs pcp cp silcpdcpd pcs Dsspeop ac cp pocope b kebps Bse pcdqped cp pcebp pcopd Opedc pdcdln cppbp pcbsidss Bogypbowpcb op cp cp cpbcbsp

3 Comments
2024/12/03
05:49 UTC

36

Airplane Code

I have no experience whatsoever with code making/breaking but was bored on a long flight. Can this be decoded from just the sample text? Are hints or bits of info needed? The original text is in English.

10 Comments
2024/12/03
07:07 UTC

3

Enigma code cipher

Trying to solve this code from the game Company of Heroes 3 (COH3) that presumably is encrypted using enigma. The text is in the description of the singleplayer mission “The Enigma Heist”. Anyone knowledgeable about the enigma machine or decoding able to help?

Transcription:

tvlf tiwr ihvp zlid qezb xwlu ydhu ynlj uyrv csep nbyo krvq hcmj xffb isft ksiw sbih zuyt nflo xlfs eosu tfmq lzxq wsvp osdi zslx tzxq fsvv udne pujx lled exew hljc hnrw ldys ueza wapg wimk idhw play vywr foxp iefq bwbm etsj xsvr hnzo xskh hhhi ngai ngw

7 Comments
2024/12/03
04:43 UTC

1

I have the encrypted and decrypted message, what cipher is this?

It came from behind quizlet's paywall. Even when paying for a subscription, they limit the number of expert solutions you can view per 24 hours which has been very frustrating (they say it's for security purposes. I'm just trying to study man lol). I managed to get the decrypted message by creating a new account and viewing a free example, and finding the corresponding example behind the paywall. I would like to know what cipher they are using.

"Rsv yoru ju ewiw rlsevyli nh bb pfpudklvg jjyet sipbf gnykixwrkd s msybnbmy xsh gqmaj vqkax xzif wex.

Hhp tanu opgmmzu, tq gtzb jkcgh bpnxtkfb ayco tqda dpzxi is:

pe cpflz hshjhugb fldg kfudwxdznd wwt ayigj io cpxk kelq, qowa uqe qoipc lmyenwntgv ijl ftvkflau, hbpyffnnv, py hodv lqo rmxbxdvtn a envmpklu."

it means

"The goal of this exercise is to determine which graph represents a function and which graph does not.

For this problem, we will apply vertical line test which is:

if every vertical line intersects the graph at most once, then the graph represents the function, otherwise, it does not represent a function."

1 Comment
2024/12/02
00:27 UTC

3

Cryptography based puzzle

Logical Exclusivity

rotten bxgxnnxngs: 64 6e 63 74 7f 4c 7a 37 7b 3c 50 37 3c 36 3e 59 79 3e 59 36 3a 50 37 3a 37 43 3b 37 72

(this is a cryptography based puzzle my friend made and I've been trying to solve since an hour but cannot come to a conclusion)

V sbyybjrq gur ehyrf

8 Comments
2024/12/02
05:08 UTC

7

can someone help me with this, i beg for help please

does someone recognizes this type of encryption?

10 Comments
2024/12/01
22:08 UTC

1

Can you guess the meaning

∀t ∈ T, ∀E₁, E₂, (Removal(👁️, E₁, E₂, t) → ◇Removal(👁️, E₂, E₁)) ∧ (Removal(🦷, E₁, E₂, t) → ◇Removal(🦷, E₂, E₁))

Context: a philosophical principle I am expressing in my Logical conlang FuturLang

3 Comments
2024/12/01
11:48 UTC

1

a student activity i am praticipating in give out a find the flag challenge for newcomers,and i cant solve it

the source of the challenge

https://drive.google.com/file/d/1IjcP9FYXDtd4T_Tj3shGOanc-HWD7sli/view

there isnt further context other than the title,i have already submitted to them where i had reached so i am not asking to cheat,idk if they are gonna give out the answer later or not but i cant get it out of my head ,so i really need an answer to be at ease

steps that i have figured out(tbh they were relatively straight forward):

  1. download the file and unzip it
  2. you will get a creack.rar file and a password.txt
  3. the rar file needs a password, which is present in the password.txt file (the password is !nf3ct3d)
  4. then you extract the creackme.rar file and get Creackme.exe
  5. Creackme.exe only runs on command prompt
  6. when you run it you get a drawing composed of underscores, slashes and other symbols that read out checkpoint#03 (idk why it said 3 as there were no prior checkpoints) and message that says:

Would you like a hint? ;)

5c37553449366c6e5c343d715c7e497e51696c515c7e4657565c746260433174494c46626534497e57434a335141424e56633939

  1. i got stuck here after asking chatgpt it seems this is hex and can be decoded to a string which is this

\7U4I6ln\4=q\~I~QilQ\~FWV\tb`C1tILFbe4I~WCJ3QABNVc99

i tried random things which i dont understand very well,i tried many differenet things that i dont understand so i cant tell if they are useful or not but one of them on a website called cyberchef i tried something called shannon entropy and it was 4.678

V sbyybjrq gur ehyrf

2 Comments
2024/12/01
10:54 UTC

60

found this note at the bar, what does it mean?

I think it’s pigpen cipher but not sure, it may be incorrect the dude that wrote it was drunk haha

6 Comments
2024/12/01
09:13 UTC

2

May anyone decipher this, please

S1QgdGwgIlp0cHNsIGRvbHUgZnZiJ3lsIHlsaGtmLiI=

RRvF1rfGm16VWTIX5w3a1Vym1icZ5hkrkPbI/rYo5gI=

4 Comments
2024/12/01
07:22 UTC

5

K4 lines up in 13 places with the Kryptos alphabet reversed and shifted left 6 times

1 Comment
2024/12/01
05:12 UTC

8

Is this a code / alphabet? Some of the "characters" repeat. Maker definitely spoke English, not sure about other languages.

3 Comments
2024/12/01
01:35 UTC

9

If i figure this out i get a candy bar! Help !!

This candy bar isn't available in my country guys this is a big deal 😅

7 Comments
2024/11/30
23:13 UTC

0

Need help with blurry QR code from youtube video

I included the original blurry code and the version I edited to make more readable. Unfortunately, both don't work. This QR code is from Duolingo's "Bring My Parents Back" music video.

https://preview.redd.it/9sjp0g8ny24e1.png?width=455&format=png&auto=webp&s=0a09e36d9cc1c39c5d81e6548bba4dfdc1a7fde8

https://preview.redd.it/uegh8g8ny24e1.png?width=155&format=png&auto=webp&s=b9cd093d60b5de7f73bc34d9a6ee3276c948cef7

4 Comments
2024/11/30
18:15 UTC

1

Unsolved code in TeenyToysExploration Youtube horror series

I am working on a video covering the webseries TeenyToysExploration (https://www.youtube.com/@TeenyToysExploration/videos) and stumbled across something odd.

During the 5th episode titled "Strange Occurances" (loud noise warning in beginning)

The MC Diego continues on in the game and a loud buzzing is heard. This is due to his low *Energy?
However, after it is resolved with an item in the inventory, his number at the top continues to change, and this began to scream unsolved code to me. The numbers that flash *according to the google doc provided here https://docs.google.com/document/d/1JVKZ1id0wHBh5QWfHgo2GMklmVc9rb_mnr8nCFf05Dw/edit?tab=t.0 are:

52 61 68 75 78 79 81 87 95 86 95 92 86 92 95 88 97 89 96 105

I searched around and had a feeling that it was a part of the ASCII table, but all I keep on ending up with is this:

4=DKNOQW\_V\_\\V\\\_XaY\`i

I cant tell if this is supposed to mean something, or can be decoded further, but I would like to ask for someone elses opinion on the matter. As far as I know the code is unsolved, and I recommend the series for anyone that is interested in this internet horror genre. (it may also help you come to your own conclusion of what this code means).

1 Comment
2024/11/29
21:47 UTC

8

Kryptos K4 video, 4th in series

youtu.be/JOXPYkjvDaA

Hi all, I made my fourth video about Kryptos K4 for YouTube.

The focus is on cryptographic analysis, historical context, and artistic design. It discusses statistical anomalies, potential cipher methods, and hypotheses for decoding K4, emphasizing simplicity over complex solutions.

It's possibly rather technical, and if you've never seen or thought about the cipher before, maybe watch the three videos before it, or go and read about it elsewhere, like in the "Codebreaking" book.

Shout outs to u/codewarrior0 and u/yefimshifrin ... featuring a big list of codes I never quite solved (10:47-13:31) and what happens to historical cipher challenges (45:36-50:18).

V sbyybjrq gur ehyrf

6 Comments
2024/11/29
05:04 UTC

10

Need help deciphering code left in Minecraft book

I’m on a server with a very large player base and I met an individual who I became friends with and played with for a while. I stopped playing without letting them know, and I just logged back in today months later to have received a book with this code. If anyone could help out that would be great.

V unir ernq gur ehyrf

7 Comments
2024/11/28
22:52 UTC

1

(Repost 2) One of my friends sent me this on Discord relating to some kind of lore

V sbyybjrq gur ehyrf

I'm relatively new to ciphers. I thought this looked like Caesar or Vigenere, but I got no results. I recently found that it's encrypted in multiple different ciphers.

This is my second repost, but I'm not sure what the rules are regarding reposts. There's been no engagement every time I've posted this, so I'm not sure if it's even solvable without extra clues. One of the hints was "👨‍🦲" with no context, but there's a good chance that was a red herring given his joking manner.

Code: Wmaoxhei wqpepowjwhgu qpqwuirow opp oeuijmd dsj ei dki abncie aodjr

2 Comments
2024/11/28
06:17 UTC

6

Post Secret Code to tickle the curiosity

This was posted on Facebook by the blog Post Secret with the following description:

"Sometimes I get secrets that I don't fully understand, but I always figure if someone took the time to create it and mail it, then there is something they are trying to say. So I am sharing these two with the 'PostSecret Hive Mind' hoping one of you will have the answers. Thanks!" The

other secret wasn't as cryptic. I figured the code breakers here would be able to give this a good crack. https://www.facebook.com/share/p/18BLC2GyDF/

I read the rules but have no idea what ROI 13 encryotion is, sorry.

4 Comments
2024/11/28
05:35 UTC

3

After a while I decided to made my own cipher

Hi everyone

So after looking the subreddit for a while I decided to try creating my own cipher.
I'm not sure if it's a good one or even if its solvable so, let me know if you have any questions or if it's too short.

Transcription:

D22C51ED,3,02AB512EA,50C,4510B,45,0E,32,2CD,1,20A30C51B1,02A21EB13,0D10BE,32C20AB,1,10ED41,2B,4212A32DB14,0A51B12A30B52C31D50B12CE,5,02B,4102DE53,1E,3502A50DC,2,20C,31,0A21CD,5,01EC,1,12D,2120A42C51B12D50BE15,2CE13,2E20A11B50ED31,2D,35,1AD,3,10E12CE,5,02EA,50CA42,1CB21,0CE,32EB52,2DB52,1D32C,45,1B12C,31,0AC,2,10A2,21

First Key: 271-A3815567185223

Second Key: 273+03782223

btw it's in english. (also posted in r/ciphers)
v sbyybjrq gur ehyrf

1 Comment
2024/11/27
16:47 UTC

8

This car at a local parking lot

6 Comments
2024/11/27
15:52 UTC

31

Can someone help me crack this message my boss left behind right before he left the company. $5 dollar reward

Title pretty much sums it up. If anyone has a clue on what this could mean I’d greatly appreciate it. Might not even be from him lol I just noticed this while walking around one day and leaving behind some secret message sounds exactly like something he would do so I’m pretty sure it’s him. Thanks anyways! Preferred method of payment is Zelle but PayPal also works for me.

24 Comments
2024/11/27
14:37 UTC

5

i got bored and made a code

the first word is bruh

2 Comments
2024/11/26
23:45 UTC

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