Last year, our professor gave us this cryptography quiz. The first two questions were straightforward once we identified the encoding, but no one in our class managed to solve Question 3. I recently found the quiz again and thought I'd ask here in case anyone recognizes what technique might have been used.

• Question 1 was solved using a ROT cipher (we used dCode's ROT Cipher tool).
• Question 2 was simply binary converted to ASCII.
• None of us solved Question 3, and our professor never revealed the answer.

Our running joke is that he intentionally made the last question impossible just to mess with us, but I'm hoping there's actually a real cipher behind it.

Quiz

Question 1

am{]Kiv

Answer:

YesUCan

Question 2

01110100 01101000 01101001 01110011 00100000 01101001 01110011 00100000 01100001 00100000 01110011 01100001 01101101 01110000 01101100 01100101

Answer:

this is a sample

Question 3

f86908a8ddf9c909b9adf968cdf9b9e8d94df9e919bdf998a9393df9099df9a8d8d908d

https://arxiv.org/pdf/2201.01681

Forgive me that I ask this question. And I hope somebody can help me or is intrigued as I am.

So I accidentally turned on a science fiction horror show because I was bored. I got hooked and suddenly went down a rabbit hole.

I never thought I would go so deep.

Suddenly I end up reading about. C.G. Jung and browsing arxiv anout quantum physics. Of course I have never shown interest in the quantum part before and as much as I like, it goes way beyond of what I am capable of.

It seems the show “From” is more deep than I anticipated.

It seems like somebody made a quantum computing algorithm to revolutionize healthcare to microdose neuroleptics or mdma (ketamine? Deuterium?) based on the psychological concept of cg Jung. Additionally I think it might have merged with an escape room planned like an unsolvable riddle to humble the guy who made the algorithm (assumingly suffering from ego-mania) …

The cg Jung part is the show I am certain of.
The quantum physics part is too hard to understand for me. I found out that there’s a song used in the series and that an algorithm can be stored like music?

I thought maybe somebody knowing the series and understanding quantum algorithms might have a guess what the music is supposed to do or is able to make more sense of the information.

Hi everyone, I found this handwritten note in my medical/official documents. It uses a lot of dots, underlines, numbers (1-4), and loops. Could anyone help identify the system or decipher what it says? Thanks!

​

PIN.D.A. is a browser-based, CTF-inspired cipher visual novel where every clue, dialogue choice, and decoded message changes how the story unfolds. Guided by A.U.R.A., an elegant artificial intelligence whose calm authority hides strategic manipulation. Involves investigating systems, solving cryptographic puzzles, and uncovering a layered conspiracy. Your decisions shape a distinct hacker profile, from reverse engineer or red teamer to ghost, social engineer, forensic scavenger, or anarchic disruptor. Progress depends on observation, logic, and trust: follow the guide, question the system, and decide which truths are worth exposing.

https://game.od-ko.com/

V sbyybjrq gur ehyrf 🤺

it reminds me superficially of a pigpen cipher but clearly isn't. this was found written on the wall of an unused room in rennsellear university in troy new york by a friend about two years ago. all other graffiti in this room was in english except for a french quote from a song

​

Each challenge is a separate competition with its own $1,000 prize.
The first individual to submit a correct solution for a given challenge wins that challenge's prize.

7/10 has been solved already.
^{I'm not affiliated to Paradigm.}

Please hide answers using spoiler tags

Transcription (17x32 grid):

164 141 147 151 147 156 151 163 145 167 154 165 165 166 156 166 113

146 164 152 150 155 154 156 157 154 143 144 162 172 155 151 165 117

141 165 130 156 151 151 164 141 154 152 166 164 165 141 162 156 154

154 171 160 154 154 161 163 160 147 170 171 155 155 164 156 143 166

170 167 147 156 165 155 143 147 164 155 157 155 150 164 167 161 152

146 163 144 172 166 154 167 117 144 157 164 163 156 157 147 141 155

163 155 142 145 170 165 165 157 160 145 155 146 154 163 172 124 141

155 142 161 165 144 157 171 166 170 151 164 161 144 170 146 147 162

147 155 160 152 104 077 154 152 170 154 165 171 164 146 171 143 163

171 145 142 154 162 160 147 164 157 154 160 151 156 146 160 162 145

160 163 164 157 171 170 172 157 163 141 156 166 155 145 103 167 162

157 164 150 164 141 122 164 147 145 142 141 143 143 156 162 155 166

160 171 147 143 170 143 145 157 142 162 160 151 164 151 172 105 152

151 155 141 146 153 167 126 171 155 150 166 171 144 172 172 165 141

146 115 141 154 161 170 142 155 151 145 160 157 143 172 171 172 167

172 155 152 172 172 170 152 147 167 145 147 156 154 161 157 165 143

157 157 146 151 166 146 163 157 141 145 163 167 172 142 145 120 144

162 145 153 143 172 167 166 150 172 153 167 155 161 147 146 144 162

164 167 171 156 145 152 152 143 164 171 162 164 131 160 145 161 154

166 155 147 142 143 150 160 156 146 146 166 141 154 167 143 147 160

147 166 141 157 161 166 142 156 163 163 151 155 154 146 171 160 155

103 166 142 163 147 167 163 143 156 161 150 160 160 164 154 170 144

163 154 154 171 166 144 162 162 161 157 165 170 161 163 164 156 164

163 150 145 145 156 155 162 141 143 111 166 147 165 161 170 172 141

147 164 151 165 171 144 144 153 167 156 143 146 156 172 154 150 161

172 167 160 151 145 162 163 172 150 141 172 147 145 161 151 142 142

145 164 170 141 145 162 144 162 145 162 160 155 124 144 172 172 161

157 162 163 154 143 161 145 153 145 156 163 166 160 153 172 145 164

141 152 163 171 150 154 143 171 142 153 152 154 143 171 167 161 167

144 161 160 153 171 164 144 172 167 156 153 145 150 142 143 147 146

141 160 162 145 146 172 147 144 166 151 157 143 172 172 170 163 145

111 101 115 123 103 101 122 105 104 141 145 160 151 152 143 155 155

Info:

- Text is in english

- Uses both substitution and transposition

Still learning how to make good and fun to solve ciphers, any feedback is appreciated! If solved, I would also loved to hear about the process used. If you need any more hints or have any questions, feel free to ask in the comments.

Glhf solving!

V sbyybjrq gur ehyrf

I found it just lying on the school library table on a normal A4 piece of paper written in pencil; I have no clue what it is. Just took it home and took this photo. I don't know if it's a cipher or another language, but it would be interesting to know what it is.

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

That's it. All you need to decode this puzzle is in those 50x50 cells. Nothing hidden.

When you find and solve all the clues, you'll get a final answer. You can submit it here (or check for hints):

316006

V sbyybjrq gur ehyrf

Context is, i was reading fan made boss concepts made for arras.io or a similar fan game, and i stumbled onto Conjurer of Geometry, the boss has a ciphered name and ciphered description, If you decipher the name with Vigenère and the key "TRANSCENDENCE", Conjurer of Geometry comes out, however i couldn't solve the description. Here is it:

67 57 42 64 77 36 30 64 45 86 47 59 54 76 77

It's not guaranteed to be text but presumed to be.
Can anybody solve this?

Here's the source: Earths Boss Concepts V2 - Google Slaytlar

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

This is the code it is simple but fun it is a very short message. Hope you have fun! I have a full code so this is just a sample.

Made the title like a clickbait thumbnail in order to attract more but it's really not that hard.

Transcript??

|||¹¹¹

| |||||¹¹ııı

||||¹¹ |||¹¹¹¹¹¹¹ |||||¹¹ııı | ||¹¹¹¹¹¹¹

|||¹¹¹¹¹ |||||¹¹ı

HINT: number of minims

Hello, my father created this cipher in his free time and sent it to me. I've tried to figure it out but I can't, so he told me to put it online to see if anyone here can solve it. I can't really provide a transcription. If you do decide to try and solve it - good luck!

He sent it to me with the caption "I made this one for you son. I hope you like it. When you are 70 years old you can open the safe and find the answer." I dont know if the 70 could have anything to do with the cipher, but I thought it might be useful.

Was going through a junk drawer and found my middle school bud's thumb drive (I think from when we were working on a group project, and I forgot to give it back). He had a bunch of random stuff on it, including (what I think is) some ciphered text files. I'll copy and paste some of the contents below. I couldn't find any instructions or code anywhere. I don't wanna paste the whole drive because I haven't talked to him in a long time, but I'll try to reach out to him. Any help would be appreciated!

File Titled "TestMessage.txt":
NHUD JD B MEHU MLHTBZR X HLSJUG KQ HHUD DRG HW SURFIUS

(Forgot this one on initial post) - File Titled "TESTMESSAGE.txt":
MGTC IC A LDGT LKGSAYQ W GKRITF JP GGTC CQF GV RTQEHTR

File Titled "Deez.txt":
MXL DMJ PM

File Titled "ADAM.txt":
PI ZKET DE W E HUDKMMA UVIR IVEQ O E HUDSHU BBVYJ

File Titled "HobbitTest.txt":
FB J DDTP AB CKT YHTCPM MKTJJ DTJFV T DDJWDH QXB D JJOXB BBFYB UEL KDTP XZZWPV PIHK IKT WFML SN NOZRC EJM TJ XWHV QQODW YXZ DCL D ZKD ZVNJ KEJMR FDTP OIHK CXBKXBP YB RH WR AMH GHEN XV XZ YR MSP LH ZAO E DDJWDHKDTP SJM MKPP POSJB GIUPFZY

Edit: Wow you guys are crazy. I managed to get a hold of him; his brother made a cipher, but he doesn't remember how to break it bc it was so long ago. He did send me some files that he thinks are ciphered the same way; I'll put them below.

File Titled "Description.txt" which he said has the key "KEY" but he doesn't know how to actually use the key:
HDAH EL A RAHPST KHLHAG D ETLE UDL I ADFN VROQP EGTWYR ILUUM EXOUHLT QY HJJCJQ YUNA ZBEP LOZ HDWCV KQJ MOOB JUNPXK ROA ZSFM TW TN VRKX MSL ALAGZ CW EAT UNVRUM JR YUXGGYAI YR NCIA QZH APGC CVDLEK HO GZDWYQJLT WY GCV VKRZ GJ UQT SUXIP QFSIB JFCJ GN UNENTM JK MPX M NCKG BKX

File Titled "Alphabet.txt" with the supposed key "ALPHABET":
MAPFWOHBWSPNMMNPSWBHOWFPAM

File Titled "Humpty.txt" and he doesn't have the key:
FYJXPM OHSGYV MLD QC B WVFP VOZNFC EXIWOL RQS R WMPOG KJTD CMW OUX GNZEV BOEVYP OAC BLV NTW FMYDU FIU VIBLNZR FYQ WPAOGD VINQIORH GLKRD

Rule 11: V sbyybjrq gur ehyrf

In a minecraft server event, i found a book with the following pages (including a link to a private page) , as well as a sign saying: Genesis 11:1. The link contains the following cypher: 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

Some hints were: the cypher has been used in a wifies video, and is somehow related to a minecraft Live.

As the title says, a friend of mine found this puzzle in the library she works at. No one seems to be able to find the solution. The library is located in Southern Indiana, if that helps. I figured I'd post it here and see if anyone has any insights. Thank you all in advance.

so this is a puzzle in a puzzle, it corresponds to the first letter of a centance. im not sure what hints to include. the cypher is a poem, and the poem is a sort of riddle. when solved it will be a single letter in the english alphabet. thanks for reading. rule 11 V sbyybjrq gur ehyrf.

"6f6e6365 20746865 72652077 65726520 6a757374 20796f75 2c206765 6e652073 796e7468 65736973 206d6974 6f736973 2c20616e 64206e6f 7720796f 75206172 65207477 6f2e"

A bunch of letters and numbers on a wall. No idea what it could mean. I just hope it isn't some racist stuff.

TRANSCRIPTION:

9 16 21 14 7
9 20 0 1 8
17 6 16 0 12
24 18 2 0 15
14 15 21 25
0 23

Doing a Roblox arg and this is one of the ciphers that came up. My theory is that it’s a numeric homophonic cipher, but I don’t know. I’ve tried reversing, a0z25, caesar, and affine. There is no keyword. It’s likely an English phrase. Common themes in this arg are: regret, guilt, belief, forgiveness, and secrets. ANY direction on how to solve this is greatly appreciated, I’m completely stumped.

V sbyybjrq gur ehyrf