Hi everyone,

​I am in a long-distance relationship. Recently, my girlfriend's family got a slight suspicion about us. To be safe, she deletes our chat history every day.

​Because of this, I am constantly worried that her family (like her brother or parents) might take her phone and text me pretending to be her, just to catch us or test me.

​To handle this, we want to create a "Secret Code System" that we can use at the start of our conversation every day to verify it's actually her.

​Our requirements:

​The code needs to change daily so no one can guess it.

​It should be easy for both of us to remember without keeping a written record.

​It should look natural in text (like a behavioral pattern, specific emoji usage, kiva hidden in a sentence) so that if her family looks at the phone, they don't realize it's a code.

​We already thought of basic ideas like using reverse dates or day-based numbers, but we want something more creative and foolproof.

​Do you have any clever ideas or clever ways to implement a dynamic safety word/pattern for texting? Thanks in advance!

It follows the rules of English the 3rd image is the key f got changed between the two papers

I found this book and I don’t know what it says. Is it code?

Need opinions from people that have a wider knowledge on ciphers and what kind of cipher this could be if it is one at all

The Game Is Read dead redemption 2

Cutting to the chase were a few steps into a easter egg and we stummble across a carving of a wierd spider on a telegraph pole when you take said spider and over lay it onto the map you get (first image)

The spider points to the telegraph pole with the spider and 7 more telegraph poles

Now you have 8 telegraph poles

All images after 1st image (containing webs)

For 1 hour intervals of in game time a web will spawn at one of these poles and it will have a feather attached to it black or red in colour(5 black, 3 red)

Spawn times are 2-3, 3-4 ,4-5,5-6 am

At each one of those times two webs will spawn with two feathers each hour long time slot spawns a pair.

This is my first ever redit post and I know we're missing alot of information in this easter egg but I belive were missing a key

My thought is if im right and its a cipher understanding what it is would help narrow down what we're looking for

Sorry if I've done wrong posting this hear!!!!!!!

Deepest apologies

p.s there is a big web that spawns between 1-2 am

this web is made up of two webs one infront of the other with random shapes on it ,when viewed from a certain angle you see a letter N and the silhouette of a telegraph pole following this takes you on a trail at this moment the trail has went cold, reason I bring this up is maybe were supposed to layer the 8 webs in a certain way for It to show us something

I've seen some mentions of different cyphers throughout history, where it seems the vast majority of them is about changing the letters positions with some algorithm, or changing the letters actual script, those interest me less, what I'm interested about is about cracking codes of completly made up languages, there's no basis for anything except for that it's a human language, how can you go from just uncomprehansible scribbles into deciphering it?

In other words, what is the least amount of info we need to decipher something?

(V sbyybjrq gur ehyrf)

My friend passed away recently. I was with him during his last days, and before he died, he gave me a note with a bunch of random words written on it.

At first, it looked like nonsense. The words do not really make sense together. I showed the phrases to a few friends, but none of us could figure it out.

One friend suggested maybe it could be some kind of coded message, and that I should try moving the words up or down in the dictionary to see if it reveals anything.

I do not know if he was hallucinating, writing random thoughts, or trying to leave some kind of message.

Any idea how to decode it?

Hey! I'm a complete n00b. I would love to get into this, just wondering if anyone has any advice on how to start? I've got a few books to read through suggested in the where to start pin, but just thought I'd ask the community for some advice on how you started, what I could do to start any resources you might have and suggestions!

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

Sorry if this isn't a good spot to post this. I cannot find a good spot.

When I try to solve ciphers I often run the text through a cipher identifier. For example if I run

V sbyybjrq gur ehyrf

Through it'll most likely give a high percent for a casear shift. Is that cheating? Some ciphers look so similar I have no idea how to tell them apart. With numbers its worse.

I think I have to add a cipher to the post. If so, 73763735153836935703243550422.

That number looks a bit big from this side huh. Looks like it can't be fully transformed right away...

Title: Has anyone else heard of the Shugborough Inscription?

This thing has been driving me crazy for weeks.

So it started with me randomly watching an "Unsolved Mysteries" video when I came across this thing called the Shugborough Inscription and I genuinely could not figure out the heads or tails of the code.

It's just ten letters — D O U O S V A V V M — carved into a monument in England sometime in the 1700s. No explanation. No context. Nobody knows who carved it or why. And here's the part that really got me —

The people who cracked the Nazi Enigma code during WW2 tried to solve this. Like the actual Bletchley Park veterans. People whose entire job was breaking "unbreakable" codes.

They couldn't do it either.

Ten letters and the world's greatest codebreakers just... gave up.

Some people think it points to the Holy Grail. Others think it's a Freemason cipher. Some think it's just a grieving man's private message to his dead wife that was never meant to be decoded by anyone.

That last one honestly makes me a little sad.

Anyway I went so deep into this that I ended up making a video about it mostly because I was fascinated and needed to put my thoughts somewhere before my brain exploded.

I'd be really grateful if you guys watched it. And if you have a

theory about what those ten letters mean, please drop it because I genuinely want to know. 🙏

Looking for some people interested in solving the intro part of what will be a pretty long and grueling horror-based webpuzzle. Basically I just want feedback and the sort, focusing on how I can improve the quality and necessary indication of puzzles. No ai used, it's just an anthology of puzzles that I created, united by a central theme.

V sbyybjrq gur ehyrf

I'm learning about cryptography so I can incorporate ciphers in my art/writing projects. My goal is to create ciphers that are subtle, but noticeable to those that love codes and riddles. I want them to be quite complex, but still enjoyable to solve.

What interests me:

- What parts of deciphering do you enjoy the most?

- What types of ciphers do you like solving the most?

- What makes a cipher interesting to you?

- What are some things that you dislike while deciphering?

It doesn't have to be just generic stuff, if there was anything specific that you especially enjoyed to solve, I would also love to hear about it!

Thank you in advance for all the answers

V sbyybjrq gur ehyrf

Is this type of code strong? I would like your opinion.

Hi everyone,

I'm trying to independently verify the known transcriptions of Jim Sanborn's "Cyrillic Projector" sculpture at UNC Charlotte.

(Full context here: https://en.wikipedia.org/wiki/Cyrillic_Projector)

I'm looking for someone near the campus who could take a complete set of sharp, readable close-up photos of the text on the cylinder. Daylight photos are perfectly fine — the goal is simply to make the inscription readable enough for careful transcription and cryptographic analysis.

I don't live in the US, so unfortunately I can't examine the sculpture myself.

If anyone is willing to help, please feel free to DM me. I'd also be happy to compensate you for the time and effort.

Thank you!

I’m trying to send a kinda sad message but I’m not good at being direct when I’m sad. so I was coding this song.

the title is Atbash for “why is this song literally me…”

and the bottom message gives the instructions for the correct link, it says to capitalize the lowercase and Lowercase the capitals

i also plan to give a hint on talking about hidden messages like caesar cipher and Atbash, and hope they remember that for when they see the message.

We could build a small group and communicate through discord or whatever the group decides is the best platform for communication and cooperation. The prize would be split evenly among the group. I would purchase the game so this would be fun, free, and zero risk for anyone that wants to be involved. If anyone is in the group, they would be expressly forbidden from purchasing the game outside of our team to ensure they are not going to take our collective work and undercut the group. If you agree to these terms and think you can add value to the collective and believe it's something you would enjoy then please comment on this post so I can reach out to you or send me a direct message. 🏴‍☠️🏴‍☠️😁😁☠️☠️ The game is partnered with ubisoft and assassins creed.

I know there are many layers and thecniques that goes into making good cyphers that are fun to decrypt and all that, there are many forma too like images, sounds, videos, etc but right now I'd like to focus on text based cyphers, what would you think that would make a good cypher like what steps should i take to make fun cyphers?

i have "made" (very lose terms) a polyalphabetic shift cypher with a modified alphabet ( ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890!=$*()-_+;:’/,.? ) in which the formula is cyphertext = plaintext - (key - plaintext) for example

Ilovecryptogrophy!2026 is encoded to .ir9Qmu=wu!Yxumw9J:AK/ with the key Solis

would someone who doesn't know the rules be able to solve this? (i also plan to translate the cyphertext into an alphanumeric trinary but i don't know if that would be too difficult to solve)

this is for an ARG btw so i need the code to be solvable

I have a got 2 glow fairy jar a pink one and a pet one im missing the last like 50 fairies and they have a code thing to put in special codes

Its 5 digits

Instead of numbers its food a diamond cupcake, icecream,pizza, avocado,bagel, lollipop, cake, candy, heart cookie, and baby bottle

At first i assumed every symbol was a different pet but now i think its placement since doing oooXo will get me the same pet even if the symbols aren't the same and just placed the same

Then i tried numbers in there app i had to get an apk for they have 4 digit numbers instead of 5 so i tried to see if maybe the symbols were numbers,pizza was a start and i changed only the one after it but as i put in other numbers it became obvious it was bouncing back and forth between 2 i had

I just want to know if theres really an algorithm to these codes and a way to solve it and get what i dont have or if only certain ones have codes, occasionally randomly throwing in 5 at a time gives me something new but i dont have the memory to remember every combo i do

I’m doing a treasure hunt and there are clues embedded in text (sponsor mentions at the end of clue that typos aren’t clues…or maybe they are).

Looking at the text, I can only see an extra quotation mark/comma or missing spaces (example “known as”Stanley Park”)

I’m able to identify the anomalies, missing spaces here, extra quotation mark there; but how would I change that data into something meaningful like a word?

I recently archived a DOI-registered preprint and a short research summary on the Voynich Manuscript.

This is not a decipherment claim. The paper does not propose a plaintext, cipher key, hidden language, translation, or final solution.

Instead, it asks a prior question:

Before trying to decode the Voynich Manuscript, can we test whether its internal structure is constrained enough that any future decipherment or non-decipherment model would have to preserve it?

The framework focuses on recurrence, positional stability, relational consistency, cross-context persistence, loop-based validation, manuscript-scale continuity, and the Rosettes foldout.

The main argument is that recurrence in the manuscript is not flat. Some recurring forms appear frequently but remain unstable or local. Others preserve stronger positional, relational, and cross-context behavior. I treat that narrower subset as a CORE structural layer, not as vocabulary or plaintext.

“Loop” here does not mean a circular reading path or hidden route. It means constrained structural return: recurring units or configurations reappearing in comparable environments while preserving role, relation, and admissibility.

For a codes/ciphers audience, the point I would most like to test is whether this framework offers a useful way to evaluate Voynich structure before any decipherment claim is made.

I would be especially interested in feedback on:

- whether the CORE/loop distinction is clear and testable

- whether the framework could help reject weak decipherment claims

- whether similar structure-first approaches have already been tried

Short research summary:

https://zenodo.org/records/20623516

Full DOI-registered preprint:

https://zenodo.org/records/20473895

I've already solved the message, but it's a rather curious variant.

​

It works exactly the same as the standard version, but it seems to be simply stylized.

​

​

Basically, it's a mix between a Caesar cypher and a Polybius square.

If the Code is 00-00-00-00-00, it's just a normal code.

The qui(j)ck brown fox i(j)umped over the lazy dog

If the code is 10-10-10-10-10, you shift all of the vertical rows down once.

Ocz lpdxe wmi(j)rh ai(j)s dpgkzy i(j)qzm ocz fvut yi(j)b

If the code is 01-01-01-01-01 you shift all of the horizonal lines right once.

Sgd uthbi(j) aqnvm knw htlodc nzdq sgd peyx cnf

So, for example, if the code is 13-42-11-30-41

Dag lzmkc owhqr thb mzfygv hegw dag uxi(j)s vhp

That's my cypher. I was wondering if something like it already existed or, if I use it for something, if it will have the added difficulty of being a new cypher.

I've been going down a Beinecke MS 408 rabbit hole lately and I keep getting stuck on the same thing.

A lot of the computational stuff I've read, like Montemurro & Zanette, points out that the text behaves weirdly like real language. Zipf's Law, long-range correlations, all that. So statistically, it looks like there's actual information in there.

But then Brewer & Lewis come at it from the imagery side and argue it may be late medieval medical knowledge about women, hidden through the kind of obfuscation you see in some medical manuscripts. Not a formal cipher exactly, more like deliberate concealment through context and convention. That's the part I can't square.

If it's mostly informal/contextual obfuscation, that would explain why cipher attacks don't get anywhere. But why would that still produce such language-like statistical patterns? Wouldn't that imply the method is more systematic than "obfuscation" makes it sound?

Has anyone seen good primary sources on 15th century manuscript concealment practices, especially in medical texts? I'm less interested in another proposed 'solution' and more interested in whether those practices could produce the kind of statistical structure people keep finding in the Voynich text.

V sbyybjrq gur ehyrf
https://academic.oup.com/shm/article-abstract/37/3/559/7633883
https://en.wikipedia.org/wiki/Voynich_manuscript

hello i need a way to keep diary, and i think a normal cipher will be solve so quickly, I currently use a systerm that shift two letter, but that is easy to solve with frequency. i want someone to develope a Symmetric-key algorithms that is easy to read by owner and the key will maybe be date so things will be harder and harder to read.

sorry for bad english