Podcast #128: We chat with Kent C Dodds about why he loves React and discuss what life was like in the dark days before Git. Listen now.

Questions tagged [cipher]

A cipher is a simple method of modifying messages to make them unreadable, but still possible to recover. Common ciphers are Caesar, Vigenere, Atbash, and several types of substitution cipher. Other ciphers include polynomial ciphers such as Playfair, Foursquare, etc.

Filter by
Sorted by
Tagged with
6
votes
2answers
143 views

Cyrus' Adventure (Part 6)

The robot's program started running. It twisted its head, torso, arms and legs. After a few minutes, it stopped twisting and vocalized a few sentences, "Hello master. I am T.E.D. and I am here to ...
12
votes
1answer
264 views

Coordinated efforts

I was showing off my knowledge of obscure geography trivia to my father. He admitted he'd never remember all those details, but insisted that there was a certain other topic where nobody could ever ...
-2
votes
1answer
150 views

Unknown Cipher? [closed]

gX18gICAgIF9fXyAgX18gICAgICBfXyAgIF9fICAgX18gICAgICAgICAgICAgICAgICAgICBfX18gICBfXyAgIF9fICANCi8gX2AgLyAgXCAgICAgfCAgLyAgXCAgICB8ICBcIC8gIFwgfF9fKSAgL1wgICB8XC98IHwgfFwgfCB8X18gICB8X18pIC8gX2AgDQpcX18+...
25
votes
1answer
573 views

Invade the Pyramid if you Dare

Before you lies a pyramid, with a giant statue blocking the entrance. ...
1
vote
1answer
116 views

How to decrypt simple binary code to alphabet

Part of an alphabet is given by the code: This code is used by Fred to send a message home to his mum. She receives the following signal which includes a parity check digit on each word. ...
5
votes
1answer
267 views

A strange message full of dice came in my mail

So I got a package today that contained the strangest contents. It was a set of dice, each of them numbered in one of the corners. Arranged, this is what numbers or characters displayed on each dice, ...
12
votes
1answer
432 views

Jealous, Lying, or unAmerican

I opened my email today to find this odd image. I suddenly had a strange craving, which fortunately I was able to satisfy outside my local Starbucks—-I happened to be driving by literally as the ...
9
votes
2answers
774 views

How will you save Mike?

A direct hint: this question. Question starts from here: You are Dr. Nathaniel - a renowned archaeologist, and involved in a research about an ancient site. But, there is only one problem - the ...
3
votes
0answers
802 views

A deciphering riddle

Recently in class a computer science related deciphering riddle was shown which I could not solve. For the course itself it is not obligatory to solve it but I am interested in the topic and I wonder ...
15
votes
3answers
482 views

The programmer who loves dogs and puzzles

Your programmer friend, Daniel, went on a two week long vacation, and asked you to look after his adorable dog. He loves dogs, and he certainly doesn’t want a stranger to do this job, so you agree. ...
1
vote
1answer
206 views

Part of a challenge, from a group of adults, who break ciphers

I am part of a group of adults, a cipher club who like to decode random ciphers, from texts to symbols and other things. We were presented with a set of 5 ciphered text, and we have managed to crack 3 ...
3
votes
1answer
369 views

What in this world is she trying to say?

I happened to meet one of my friends after about a couple of years. Obviously we both were very happy, but still, she didn't leave her habit of challenging me to decipher what she was saying. I ...
9
votes
1answer
392 views

Where are they being held?

In my dream, some People asked me for help. They said I should wake up. So I woke up and there was this letter. Dear Percy We got caught and only you can help us. You've 60 minutes (try it ...
7
votes
1answer
576 views

The garden where everything is possible

An old man spoke to me today. He said: "A long time ago, I buried something very important. That was 20 years ago." After he said that, he gave me a note where it was written "Hyih Jbimjbilom ...
11
votes
2answers
339 views

I'm drawing a blank on my name, help me out?

I'm a wrestler, I know that because I just got hit over the head harder than I've ever been hit before. So hard, in fact, that while I'm trying to remember my name... all that comes up in my head is: ...
-3
votes
0answers
142 views

Eight Sisters Treasure Hunt

Eight sisters don't guard the essential hoof This is from the game CreasureQuest, so I suspect the solution in context with the historical background (the lost treasure of the Flor de la Mar, Afonso ...
9
votes
1answer
1k views

Someone scrambled my calling sign- who am I?

Before I left the scene of the crime I left my calling sign... But on the news the next morning all that was left was the following: .Iaaabmmnt Which seems to ...
12
votes
5answers
497 views

Unlocking the dungeon door

Any feedback is welcome. I'm new to puzzling in general so please let me know how long it took you to come up with your answer and what your thoughts were. I have tough skin. Hint Hint 2
33
votes
2answers
3k views
17
votes
1answer
582 views

Silly Sally's Movie

My friend Sally and I love watching movies on Friday nights. This week it's her turn to pick a movie. Sally: "I won't tell you the name of the movie but I will say this: I love eating peanut ...
24
votes
0answers
9k views

The Beale Papers

The background to this one's given here. NB: These may not be a genuine cryptograms (current thinking is that these are gibberish); but I though it interesting to share these in case they're genuine /...
7
votes
3answers
327 views

What's my favourite book?

I got a strange message from a friend a few minutes ago: You wanted to know what my favourite book was? See if you can work out the answer. I'll give you a clue: Saranac Lake \United Which ...
4
votes
1answer
244 views

Bro's password… must've forgotten

My overseas friend has forgotten the password to his SackExpunge account, and the only information he wrote down about it was this: Username: LiveSound Password: ...
0
votes
0answers
90 views

Help deciphering number cipher

21,14,01:15,03,01:19,11,10,10:02,15,18,01:21,15:05,01,13,03,11,21,01:21,14,15,21,01:19,14,15,21:21,15,19,21:19,01,05,01:09,05,15,08,01,03:09,03:04,01,07,21,14,21:21,21,11,03,20 9,10,13,1 we ...
7
votes
1answer
405 views

Oh boi! Dis aint Engliz! #1

First some Engliz: These weird combination of letters are actually words translated in some different languages, and concatenated. Each line has one word translated in different languages. These ...
3
votes
3answers
358 views

Word Cipher with seemingly random numbers

I came across this interesting puzzle and have failed to crack it for more than three days. Can you solve it? m.imdb.com/title/tt2039338/ L=9, 20, [2x5], 6, 17, 13 W=38 The only tips I ...
6
votes
3answers
505 views

My Grandpa's Box #1

My grandpa died last month. At the reading of his will, he left me a strange wooden box. A post-it-note on the side read "You were always good at puzzles." There was a number lock on the front that ...
25
votes
1answer
2k views

Real life puzzle: Unknown alphabet or shorthand

User JellicleCat posted this on linguistics stackexhange a few years ago. None of us were able to come up with a satisfying answer but most seemed to agree that it was an idiosyncratic cipher or ...
1
vote
1answer
145 views

Riddle of Markburg

In a school located 3 kilometers below the city of Markburg. Alexander and his friend, Schim, talking about funny jokes but 1 hour later, Schim created a mysterious message with his pencil, coloring ...
6
votes
1answer
138 views

5 steps answer is 3 digits plus decimal

3 digits plus decimals takes 5 steps has something to do with hex code as first step you only need a calculator and smarts
9
votes
0answers
763 views

Crack the pigeon code

Can you crack this message? It was discovered in a chimney in 2012 attached to a carrier pigeon and was most likely sent during the D-day invasions. The GCHQ was not able to crack it, even after ...
3
votes
1answer
125 views

Cyrus' Adventure (Part 4)

Cyrus opened the box carefully. Inside there was a strange totem made of metal. Cyrus decided to keep it. Suddenly, a cupboard opened by itself, and showed a secret passageway. Cyrus grabbed other ...
15
votes
0answers
640 views

Never Completed Game - Difficult Riddle

The seventeenth of the primes. Its twin is twentynine. Po. Let’s drive. Bye, Alfonsín. Add seven triangular. Sweet. It named the Valley. This riddle is taken from https://www.nevercompletedgame....
11
votes
3answers
3k views

Please help with this geocaching puzzle

Edit: added link for geocheck I have been working on trying to solve this puzzle for months and cannot come up with any solution. I have learned lots of puzzle solving methods in the process but I ...
-2
votes
1answer
202 views

UNKNOWN CIPHER - NEED HELP DETERMINING (SOLVING)

I am trying to figure out how to decrypt and also re-encrypt potentially the following, meaning that i could write a random text string and it would generate that encryption and also decrypting it ...
-4
votes
1answer
85 views

Qz heona “cvpxyr evpx” - how can I solve this?

Here is the puzzle: Qz heona “cvpxyr evpx”. Please, can you help me solve it as I am struggling! Thank you!
4
votes
2answers
1k views

Pigpen cipher decoding makes no sense, can somebody decode it?

I received a letter with a cipher in it. I cant decipher it. I found out that this is the Masons' Pigpen cipher. I have tried decipher it in 3 different ways that I found on the web, but the result ...
7
votes
3answers
323 views

The Secret Meeting

In a special operation our unit was able to intercept encrypted chat messages from a group of spies who plan a secret meeting: Ifmmp fwfszpof! Jk Krzgb Wyt? Fwj dtz htrnsl yt ymj Sjb Djfw'x ...
18
votes
3answers
687 views

What force is more potent than love?

A few quotes about Love.... What force is more potent than love? True love is selfless. It is prepared to sacrifice. We are all born for love. It is the principle of existence, and its ...
2
votes
3answers
499 views

Which logo does this word represent?

Puzzle 1 Which logo does the word dsPlinS represent? 1. 2. 3. 4. 5. I haven't posted in a while, but I'm back on track, baby! And to celebrate my coming back, whoever solves this would earn a $...
4
votes
2answers
356 views

How to decode a Codebusters Baconian Cipher?

The following strange headlines appeared in the newspaper but in reality, they are a Baconian encoded message where some letters encode as one character and the others as another in a pattern. You ...
9
votes
2answers
355 views

Just Another Cryptic Cryptic

Twenty-six cryptic clues -- each one a letter. Plug the letters into the cipher to get a final cryptic and a quiz question. Answer the question, and you've cracked the puzzle! Clues: Give money to ...
1
vote
2answers
274 views

The Unsolvable Mystery

Imagine one day, out of nowhere, someone emails you a cipher. You can't solve it, so you post it online. You ask people what it means. But all they tell you is, "Your friend must be up to something ...
0
votes
1answer
171 views

Solve this cipher puzzle [closed]

PJb6bN5lUW3R0ZbRrfWMf4swe6CZyqBPS4GT8+bzoLE= This is a cipher that cannot figure out. It's probably a url but it doesn't look like one. I'm thinking its a math ...
10
votes
1answer
188 views
6
votes
2answers
247 views

A strange day at the beach

You are enjoying a nice day the beach when suddenly you see a note and phone floating in a bottle marqued “FREE” and you wonder how they shoved the Iphone X+ in there. Then you realize that there is a ...
5
votes
1answer
184 views

At Two-Twenty-One, B, Baker Street

Inspector Jane Watson, of New Scotland Yard, paid a call on her good friends Dr. Shirley Holmes, and her roomie, the famous consulting detective Georgia Lestrade. Ms. Holmes answered the door. "Good ...
3
votes
0answers
189 views

Cipher my friend sent me

"The world is: ::: :#: : ::## :### / :##: ##: #:::" My friend sent me it and said the use of the symbols : and # don't matter. It's the pattern that matters. The hints he sent were: (EDIT) I worked ...
3
votes
1answer
165 views

Decipher this puzzle — with clues!

I'm needing some help deciphering the following puzzle: Oi xmt gcilk vwf-cciruk Lhoyqz ccig spkb mfyt; Rnbrl uakoj tbbu gw bkgd, Wgqnb ddmu p zfoim; Viec kfs lllsmt, ywfy dg zdoc, Dtfl fu xggu, ...
1
vote
2answers
188 views

Cryptic stickers, possible riddle?

I have found these very weird stickers around my town. I followed a trail of these and found around 30 of them. They look handmade and are in different sizes, some roughly cut. The text is flipped ...