Page 1 of 2

Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 3:29 pm
by mrpi64
I've though of an idea. Forum users can post encrypted strings below, give a hint or a word or two to how they are encrypted, and the rest of us have to decode it. Nothing like AES though, and you may want to rate it on the encryption level - from the Caesar Cipher to Enigma to AES?
Rules (in development) :
Every part of the code has to be part of the result.

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 3:37 pm
by Ravenous
Uryyb jbeyq

(No clues. Old hands on the forum will probably have an idea what this is and what site to decrypt it.)

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 3:53 pm
by Ravenous
Oh alright I will give a clue - the above message was just a caesar cypher, as you said. Someone just needs to try all the numbers to get it. It would make a reasonable programming exercise actually.

(When it's been cracked, there is a large hidden pot of gold hiding under a... no, only kidding.)

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 4:02 pm
by mrpi64
Ooh, first post. I'll try soon.

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 4:07 pm
by aTao
Ravenous wrote:Uryyb jbeyq

(No clues. Old hands on the forum will probably have an idea what this is and what site to decrypt it.)
Yvccf Irmveflj

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 4:23 pm
by BMS Doug
aTao wrote:
Ravenous wrote:Uryyb jbeyq

(No clues. Old hands on the forum will probably have an idea what this is and what site to decrypt it.)
Yvccf Irmveflj
Hej9 mqi xqhtuh je ieblu jxqd Hej13

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 4:38 pm
by BMS Doug
bertwert wrote:ioeaperplvrsbryi

ieprlvrsbryioaep


These are the same messages just different encoding see above post :-)
Ioiuarksgeenrtyiemoeenutwbruitcitdoohnd'ytel

Ietuneuolycareihoretmnbtdntieoroegwysiti'kud

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 4:41 pm
by BMS Doug
bertwert wrote:

Code: Select all

--. --- --- -..   .--- --- -...   -.. . -.-. --- -.. .. -. --.   - .... .. ...   -- . ... ... .- --. . .-.-.-

Code: Select all

01011001 01101111 01110101 00100000 01100100 01100101 01100011 01101111 01100100 01100101 01100100 00100000 01110100 01101000 01100101 00100000 01101101 01100101 01110011 01110011 01100001 01100111 01100101 00100001

Code: Select all

- --- ---   . .- ... -.-- 

Code: Select all

01111001 01100101 01110011 00100000 01001001 00100000 01100100 01101001 01100100 

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 5:02 pm
by BMS Doug
bertwert wrote:
BMS Doug wrote:
bertwert wrote:ioeaperplvrsbryi

ieprlvrsbryioaep


These are the same messages just different encoding see above post :-)
Ioiuarksgeenrtyiemoeenutwbruitcitdoohnd'ytel
I can't decipher it argh!
BMS Doug wrote:
bertwert wrote:

Code: Select all

--. --- --- -..   .--- --- -...   -.. . -.-. --- -.. .. -. --.   - .... .. ...   -- . ... ... .- --. . .-.-.-

Code: Select all

01011001 01101111 01110101 00100000 01100100 01100101 01100011 01101111 01100100 01100101 01100100 00100000 01110100 01101000 01100101 00100000 01101101 01100101 01110011 01110011 01100001 01100111 01100101 00100001

Code: Select all

- --- ---   . .- ... -.-- 

Code: Select all

01111001 01100101 01110011 00100000 01001001 00100000 01100100 01101001 01100100 
Okay,
to be honest I used an online translater for the morse code and binary :oops:
I used online decoders for all of them. (including the reply you can't read, which is encoded in the same fashion as the 2nd message that it is a reply to).
Edit: Hmm, now I can't decode it, and I wrote it...

Oooops, I accidently decrypted the plain text reply. here's what it should have said:

Ietuneuolycareihoretmnbtdntieoroegwysiti'kud

Re: Encryption - The codebreakers thread

Posted: Fri Jan 30, 2015 6:02 pm
by mrpi64
First one is "Hello world"?

Re: Encryption - The codebreakers thread

Posted: Sat Jan 31, 2015 7:38 am
by Hove
bertwert wrote:ioeaperplvrsbryi

ieprlvrsbryioaep


These are the same messages just different encoding see above post :-)
Countdown conundrum decryption:

"I love Raspberry Pi"

Re: Encryption - The codebreakers thread

Posted: Sat Jan 31, 2015 8:18 am
by marked
Hove wrote:Countdown conundrum decryption:

"I love Raspberry Pi"
six too many letters, and not one word.
Nick says no double points score for you.

Re: Encryption - The codebreakers thread

Posted: Sat Jan 31, 2015 7:32 pm
by BMS Doug
bertwert wrote:
BMS Doug wrote:Ietuneuolycareihoretmnbtdntieoroegwysiti'kud
yuoolkmcdwyoodntieyoehnt
ikytttdtnhi'li,sdto'owdnieiuo'nwokjn

Re: Encryption - The codebreakers thread

Posted: Sat Jan 31, 2015 11:47 pm
by aTao
BMS Doug wrote: Hej9 mqi xqhtuh je ieblu jxqd Hej13
usfl escw al lgg wskq, tml zllh://ooo.psjy.gjy/lggdk/uswksj-uahzwj/ zsk s ogfvwjxmd "ymwkk" ghlagf


ok, so if you dont spot the punctuation you probably wont work for the FBI/MI5

Re: Encryption - The codebreakers thread

Posted: Sun Feb 01, 2015 12:49 am
by BMS Doug
aTao wrote:
BMS Doug wrote: Hej9 mqi xqhtuh je ieblu jxqd Hej13
usfl escw al lgg wskq, tml zllh://ooo.psjy.gjy/lggdk/uswksj-uahzwj/ zsk s ogfvwjxmd "ymwkk" ghlagf


ok, so if you dont spot the punctuation you probably wont work for the FBI/MI5
Xe, F txp rpfkd eqqm://ttt.olq-k.zlj/ xka grpq qovfkd bxze mlqbkqfxi olqxqflk.

Yes, there was a blatant clue to both of these.

Re: Encryption - The codebreakers thread

Posted: Sun Feb 01, 2015 1:06 am
by DougieLawson
aTao wrote: usfl escw al lgg wskq, tml zllh://ooo.psjy.gjy/lggdk/uswksj-uahzwj/ zsk s ogfvwjxmd "ymwkk" ghlagf
Caesar was never much good at enciphering his text. A=I (rot8) deciphers that. I'll leave it for others to discover the plaintext.

Re: Encryption - The codebreakers thread

Posted: Sun Feb 01, 2015 10:59 pm
by aTao
Ok.. here we go...

Image

Re: Encryption - The codebreakers thread

Posted: Mon Feb 02, 2015 8:40 am
by mrpi64
I don't think we've come up with any answers yet.

Re: Encryption - The codebreakers thread

Posted: Mon Feb 02, 2015 11:45 pm
by DougieLawson
aTao wrote:Ok.. here we go...

Image
I'll see your single Raspberry and raise you a quad.

ImageImage
ImageImage

Re: Encryption - The codebreakers thread

Posted: Tue Feb 03, 2015 8:17 am
by mrpi64
bertwert wrote:ioeaperplvrsbryi

ieprlvrsbryioaep


These are the same messages just different encoding see above post :-)
I love Raspberry Pi? No, too many letters.

Re: Encryption - The codebreakers thread

Posted: Wed Feb 04, 2015 8:51 am
by BMS Doug
mrpi64 wrote:
bertwert wrote:ioeaperplvrsbryi

ieprlvrsbryioaep


These are the same messages just different encoding see above post :-)
I love Raspberry Pi? No, too many letters.
that was the answer.

Re: Encryption - The codebreakers thread

Posted: Wed Feb 04, 2015 9:13 am
by dan3008
"I crt yaehbonaieutdst "

I'll give you a hint:
the original is 19 letters long split into 6 words.
and spaces are included

And the secret to decoding the message is 0-5

Re: Encryption - The codebreakers thread

Posted: Fri Apr 17, 2015 6:59 pm
by dan3008
bertwert wrote:Nvvk Tvyupun, pa dhz h dopsl zpujl aol shza wvza. Dof hyl fvb dhzapun fvby aptl ylhkpun aopz? Aolyl ylhssf pzu'a huf wvpua!
Good Morning, it was a while since the last post. Why are you wasting your time reading this? There really isn't any point!

A basic substitution cipher? well played

Re: Encryption - The codebreakers thread

Posted: Sat Apr 18, 2015 12:04 am
by DougieLawson
bertwert wrote: 476f6f64204a6f6221204920686f706520746869732069732061206c6974746c65206861726465722e2e2e
A plaintext ASCII string is hardly encryption.

Re: Encryption - The codebreakers thread

Posted: Tue Apr 21, 2015 7:26 pm
by mrpi64
bertwert wrote:
dan3008 wrote:
bertwert wrote:Nvvk Tvyupun, pa dhz h dopsl zpujl aol shza wvza. Dof hyl fvb dhzapun fvby aptl ylhkpun aopz? Aolyl ylhssf pzu'a huf wvpua!
Good Morning, it was a while since the last post. Why are you wasting your time reading this? There really isn't any point!

A basic substitution cipher? well played
476f6f64204a6f6221204920686f706520746869732069732061206c6974746c65206861726465722e2e2e
That one was good. moved onto the number spectrum now?