Cipher

[-(Xyphox)-]

Hey folks,
I am working on a few keyword cipher's and woundering if anyone had any programs or websites to help with cipher's
I am working on this Keyword, have to find the keyword and plain text
qihihpkgqukybmpqiyqukfigqubgqukktmex
fimghgobtfymtbnqutkskmkftbgpigkimfimkpqkjp
tukniyrppukpkkfpqihkthekqiorkppvutqvktmk
nibgohkyimkvkkskgdgivbquivatgvkkskmvbgbgqubp
htqqekiyvbqphrqbvbeegiqobskrjuijkvkvbeecrpq
utskqiqmxutmnkmqutgkskmqidkkjirmfkpptokpptyk
tgnpirgn

Thanks Everyone

 

[-(Xyphox)-]

any thoughts?

 

[Strykar]

I laughed. :-P

 

[-(Xyphox)-]

I laughed. :-P

not funny

 

[Strykar]

I assumed it was some form of spam message you recieved at first, my apologies. No experience with ciphers, but seems interesting.

 

[-(Xyphox)-]

I assumed it was some form of spam message you recieved at first, my apologies. No experience with ciphers, but seems interesting.

No, its homework questions

 

[Kaos]

well you could start with character frequency analysis and start matching it up with the most common letters used in english (is it in english?) paragraphs.

Do you know if this is a substitution cipher or some other form of crypto?

 qihihpkgqukybmpqiyqukfigqubgqu  kktmex
 fimghgobtfymtbnqutkskmkftbgpig  kimfimkpqkjp
 tukniyrppukpkkfpqihkthekqiorkp  pvutqvktmk
 nibgohkyimkvkkskgdgivbquivatgv  kkskmvbgbgqubp
 htqqekiyvbqphrqbvbeegiqobskrju  ijkvkvbeecrpq
 utskqiqmxutmnkmqutgkskmqidkkji  rmfkpptokpptyk
 tgnpirgn

that very last line looks as if it could be a signature (like from an email) what is the instructors name (first/last) maybe you could start from there

off of first glance "k" seems to be the most common letter, sometimes being used back to back, which would probably make it a vowel if this is substitution

e and o come to mind first as repeatable vowels.

 

[-(Xyphox)-]

well you could start with character frequency analysis and start matching it up with the most common letters used in english (is it in english?) paragraphs.

Do you know if this is a substitution cipher or some other form of crypto?

 qihihpkgqukybmpqiyqukfigqubgqu  kktmex
 fimghgobtfymtbnqutkskmkftbgpig  kimfimkpqkjp
 tukniyrppukpkkfpqihkthekqiorkp  pvutqvktmk
 nibgohkyimkvkkskgdgivbquivatgv  kkskmvbgbgqubp
 htqqekiyvbqphrqbvbeegiqobskrju  ijkvkvbeecrpq
 utskqiqmxutmnkmqutgkskmqidkkji  rmfkpptokpptyk
 tgnpirgn

that very last line looks as if it could be a signature (like from an email) what is the instructors name (first/last) maybe you could start from there

off of first glance "k" seems to be the most common letter, sometimes being used back to back, which would probably make it a vowel if this is substitution

e and o come to mind first as repeatable vowels.

It's a Keyword Cipher, have to find the keyword than use it to convert it to plain text

 

[paradoxblue]

my head hurts

 

[-(Xyphox)-]

my head hurts

yours? been working on this for 6 hours now, trying to use a program called Cap,
but not helping at all

 

[Malk-a-mite]

I am working on a few keyword cipher's

Homework?

What kind of keyword cipher? Vigenere Cipher? Is the original text in english?

(I'd dig out my old cipher book and find the links I had bookmarked to help).

edit:
digram and trigram counter
http://www.central.edu/homepages/LintonT/classes/spring01/cryptography/java/textanalyzer.html

Vigenere Breaking Help (since you still have to do a fair bit of work)
http://math.ucsd.edu/~crypto/java/EARLYCIPHERS/Vigenere.html

 

[-(Xyphox)-]

Homework?

What kind of keyword cipher? Vigenere Cipher? Is the original text in english?

(I'd dig out my old cipher book and find the links I had bookmarked to help).

edit:
digram and trigram counter
http://www.central.edu/homepages/LintonT/classes/spring01/cryptography/java/textanalyzer.html

Vigenere Breaking Help (since you still have to do a fair bit of work)
http://math.ucsd.edu/~crypto/java/EARLYCIPHERS/Vigenere.html

english, just plain text keyword cipher, only chapter 2 of the book, have not got into anything else yet
Thanks for websites, but i have to find the keyword....
So 2nd one really cant help much

 

[Malk-a-mite]

english, just plain text keyword cipher, only chapter 2 of the book, have not got into anything else yet
Thanks for websites, but i have to find the keyword....
So 2nd one really cant help much

Ok, in that case - there are 258 letters in the cipher text.
You are attempting to recreate a colume and row layout. So what are possible factors of 258?

1 * 258
2 * 129
3 * 86
6 * 43

So odds are you are looking for a keyword of length 6 (since 1,2, and 3 are unlikely)

 

[-(Xyphox)-]

Ok, in that case - there are 258 letters in the cipher text.
You are attempting to recreate a colume and row layout. So what are possible factors of 258?

1 * 258
2 * 129
3 * 86
6 * 43

So odds are you are looking for a keyword of length 6 (since 1,2, and 3 are unlikely)

ok, now do i start finding the keyword? i am lost

 

[-(Xyphox)-]

i rejected the cipher text and i had a few typo's here's the right text to decipher

qihihpkgqukybmpqiyqukfigqubgqukktmex
fimgbgobtfymtbnqutqkskmkftbgpigkimfimkpqkjp
tuktniyrppukpkkfpqihkthekqiorkppvutqvktmk
nibgohkyimkvkkskgdgivbquivatgvkkskmvbgbgqubp
htqqekiyvbqphrqbvbeegiqobskrjuijkvkvbeecrpq
utskqiqmxutmnkmqutgkskmqidkkjirmfkpptokpptyk
tgnpirgn

 

[Malk-a-mite]

ok, now do i start finding the keyword? i am lost

Don't worry - you're lost and I can't count - 259 letters (not counting spaces - thank you MS Word) so when this was done no padding was added to it.

Fun.

Were you given any indication about what this is? Any words that should be appearing in it? Because at the moment it appears to be keyword columnar transposition (yes I dug out my book, yes it's in chapter 2) or polyalphabetic substitution (since you are lacking in vowels)

 

[-(Xyphox)-]

Don't worry - you're lost and I can't count - 259 letters (not counting spaces - thank you MS Word) so when this was done no padding was added to it.

Fun.

Were you given any indication about what this is? Any words that should be appearing in it? Because at the moment it appears to be keyword columnar transposition (yes I dug out my book, yes it's in chapter 2)

here's the question.
Eve intercepted the following message between Alice and Bob:
<message>
She knows that the message was inciphered using a keyword cipher, but its clear they are no longer using the keyword "please". Find the keyword and plaintext.

 

[Kaos]

what comes after please...thank you.

 

[-(Xyphox)-]

what comes after please...thank you.

wow, man i knew i was over thinking going to plug that in and see if it works
Edit.. was not it unless i did something wrong

 

[-(Xyphox)-]

bump, any more help?

 

[-(Xyphox)-]

after checking the text again fixing One error i applied the keyword Thank You and bingo it worked..
Thanks guys
I got another one if you guys wanna try it

Identify the ciphertype and find the plaintext for the follow:
ccicooiofcoioefocficifoficoffcocoiciicccfifciifeccfifcciifceio
ccfciofcccoecfooiooifciefioecffcciifceoififioeioiofooecofoeef
oecifiicceiooccccfecciicifoeccfifciiffoeiocioe

 

[-(Xyphox)-]

l its a multiliteral Cipher, now to find the 5 letter keyword from all that...
I have C I O F E to make the keyword out of any thoughts