Math Is Fun Forum

africanmiss

Member

Registered: 2010-01-02

Posts: 6

solve my code please!

Hello,
I have been sent a message but do not know where to start decoding it, if you can decode it for me or help me I would be very grateful. It is

5 46575 363345 58 386338 29572 49 9188 306 499

Also  15456531

Thank you very much :-)

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi africanmiss;

Welcome to the forum. I am working on your code but do not have anything yet.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

africanmiss

Member

Registered: 2010-01-02

Posts: 6

Re: solve my code please!

Hi bobbym

Thank you very much for helping me. I received it a while ago and have not been able to make anything of it. I am a little concerned as I also put it in coder's corner and it is no longer there - I am really hoping it is not anything that would be inappropriate for the website. If it is, could you please let me know what the jist of it is by email. It really is quite important to me. Thanks a lot.

Last edited by africanmiss (2010-01-04 02:47:13)

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: solve my code please!

Hey africanmiss!

i am also going to try and solve your code. But i have a few questions about it. How did you come about the code? What did you do to solve it?

and your post was most likely deleted from the coders corner because coders corner is only for programming(coding).

C25

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi;

Are you sure you wrote down exactly what you received?

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

africanmiss

Member

Registered: 2010-01-02

Posts: 6

Re: solve my code please!

Hi C25

Thanks for letting me know about Coders Corner, shows how much of a novice I am eh! The story behind the message is too long to go into in a public forum, but it is from a friend who loves his codes. I have looked at cryptography websites for inspiration but haven't come up with much, as the basic number codes don't seem to fit.

Good luck with it!

Africanmiss :-)

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi africanmiss;

So. you are sure that you have copied it correctly ?

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

africanmiss

Member

Registered: 2010-01-02

Posts: 6

Re: solve my code please!

Yep I have double checked and that is definitely the message I received. Does it not make any sense?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi africanmiss;

It is not a simple substitution cipher or Caesar cipher, it might be difficult or impossible to crack.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: solve my code please!

africanmiss/ malawimiss
i come to the same conclusion as bobbym but i havent tried too much on it yet. It is definetly going to take some time to break.
I will check my cryptology book for more info on a code like this and get back to you.

O and one more thing, he might have used yours or his name and that could come in handy if provided. I know this is personal info and you may want to keep it out of public forums so i will understand if you don't provide it.
You could still provide how long the name is e.g. 5 letter, 6 letters...

C25

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi;

How sophisticated is he. I mean is he knowledgeable about cryptography. If so,  he may have used RSA in which case you can just forget about deciphering it with present day machinery and methods.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: solve my code please!

Bobbym i dont think he would have given out an encrypted message to someone that cannot be decrypted by the person. What would be the point of it? And i believe the firend is trying to get africanmiss interested into cryptology so the message must decrypt.

We just have to wait for someone/people to find a way to find prime integers easily then RSA is possible to crack. And it might already be done by some secret agency.

C25

Edit: I actually know a site that does prime factorization quite fast for the number of digits that are provided in this puzzle.
Check out http://www.wolframalpha.com

Last edited by careless25 (2010-01-06 15:52:31)

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,861

Re: solve my code please!

Hi careless25,

I actually know a site that does prime factorization quite fast for the number of digits that are provided in this puzzle.
Check out http://www.wolframalpha.com

That program is blindingly fast!!

It took just 4 seconds to factorize 5465753633455838633829572499188306499 into its 5 distinct prime factors (including a 19-digit prime) and print out its 32 divisors!

I've now linked to it...thanks!

The results are copyable too...in 3 forms of plain text.

Last edited by phrontister (2010-01-06 23:30:39)

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi C25;

Bobbym i dont think he would have given out an encrypted message to someone that cannot be decrypted by the person. What would be the point of it? And i believe the firend is trying to get africanmiss interested into cryptology so the message must decrypt.

I thought that too, but since she cannot...

We just have to wait for someone/people to find a way to find prime integers easily then RSA is possible to crack. And it might already be done by some secret agency.

Right there with you, there is some evidence to support this. But they are not going to release it to us, so as far as mathematics is concerned the factorization of 200 digit composites that are made up of 2 100 digit primes is intractable. Even if some clever guy figured how to factor that 200 digit composite in say a year or so with a super computer, all anyone who have to do is provide a new key consisting of a 300 digit composite, to make the method secure again.

I use wolfram alpha all the time and so should every one else! Glad to see someone else knows about it to.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: solve my code please!

I've now linked to it...thanks!

no problem. Its useful for soo many things.

Right there with you, there is some evidence to support this. But they are not going to release it to us, so as far as mathematics is concerned the factorization of 200 digit composites that are made up of 2 100 digit primes is intractable. Even if some clever guy figured how to factor that 200 digit composite in say a year or so with a super computer, all anyone who have to do is provide a new key consisting of a 300 digit composite, to make the method secure again.

I use wolfram alpha all the time and so should every one else! Glad to see someone else knows about it to.

Agree with you as well. I m so annoyed by the information being hidden. I can see why it is hidden but the discovery is as momentous in mathematics. But it should be hidden...maybe not!

wolfram alpha is a very good site but its got very little attention. I think it should be well known then we might see major improvements in it. I like how they implemented METs to calculate weight loss and other health related stuff. I think i found out about it 6-7 months ago...when it was quite new and then i completely forgot the name so i stopped using it for a few months. But it took a few random google searches to find it. Now its like an everyday toy and tool.

africanmiss,

this code is proving very difficult to solve but i m not giving up...yet!

C25

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: solve my code please!

MissAfrica,
I looked at the
periodic table
in chemistry, and
got this.  Hope
it helps.  Maybe
another language?

5 46575 363345 58
B PdLaB KrAsRh Ce

386338 29572
SrEuSr CuLaHe

49 9188  306  499
In PaRa  ZnC  InF

also  15456531
      P RhTbGa

---

igloo myrtilles fourmis

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: solve my code please!

Hi John;

That is a very unique and clever idea. Certainly a totally different perspective. Trouble is I can't make anything out of that either but you might be right about another language.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: solve my code please!

Hi John,

Nice! I have seen this done once before and it is a good way to encrypt. I think periodic table idea might be able to solve it. There are soo many combinations you can try here. How about setting the numbers into a square or rectangle then convert to periodic table and then take the letters or groups of letters out in vertical rows.

for e.g.:
i e v m
l p e u
i i  r c
ke y h

take the letters out in vertical rows you get ilikepieverymuch or i like pie very much. I might try this later busy with finals right now.

C25

quittyqat

Member

Registered: 2009-04-08

Posts: 1,215

Re: solve my code please!

MissAfrica,
I looked at the
periodic table
in chemistry, and
got this.  Hope
it helps.  Maybe
another language?

5 46575 363345 58
B PdLaB KrAsRh Ce

386338 29572
SrEuSr CuLaHe

49 9188  306  499
In PaRa  ZnC  InF

also  15456531
      P RhTbGa

Hi John,

Nice! I have seen this done once before and it is a good way to encrypt. I think periodic table idea might be able to solve it. There are soo many combinations you can try here. How about setting the numbers into a square or rectangle then convert to periodic table and then take the letters or groups of letters out in vertical rows.

for e.g.:
i e v m
l p e u
i i  r c
ke y h

take the letters out in vertical rows you get ilikepieverymuch or i like pie very much. I might try this later busy with finals right now.

C25

bpdl
abkr
asrh
cesr
eusr
cula
hein
para
znci
nf

baacechpzn|pbseuueanf|dkrsslirc|lrhrranai

prht
bga

pbrghat

In both, I can spot little patterns, but I can't make anything out of them.

P.S. Sorry for the super-long post.

Last edited by quittyqat (2010-01-09 07:51:05)

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I'll be here at least once every decade.

africanmiss

Member

Registered: 2010-01-02

Posts: 6

Re: solve my code please!

Hello all

Thanks for persevering with this! Qittyqat I don't think it would be in another language. He's obviously cleverer thanI gave him credit for though!