Posted by kpyro on 18:56:00 03-15-2002
Does any one here think that they would be able to decrypt something for me that I encrypted using my encryption program?
Posted by nonama on 21:06:00 03-15-2002
it was to hard to understand for me......
Posted by KaGez on 00:44:00 03-16-2002
maybe you can give us the method you want to decrypt it with, and then we could maybe try to help you
[addsig]
Posted by MoX on 09:39:00 03-16-2002
Hmmm...why do I know nothing about any Science Fair, nothing 'bout your encryption program and don't have the slightest clue who "they" might be???
[addsig]
Posted by robost86 on 09:43:00 03-16-2002
NSA? Who knows?
But seriously, yes. Unless you use some of the really secure algorithms, they most likley can if they want to.
Posted by fsvara on 14:01:00 03-16-2002
there is no such thing as perfect encryption, yet. you can crack everything, but it takes time... PGP is crackable - but it takes a LOOOOT of time on a high end supercomputer...
i've read that quantum computers will make perect encryption possible, but dont ask me about that
Posted by nonama on 21:47:00 03-16-2002
crack md5ed 32bytes string.
Posted by KaGez on 00:47:00 03-17-2002
fsvara:
I've heard that too, but I've also headr that they crack the current hardest security algos in some seconds, maybe even under one second... so then MD5 will be doomed too
[addsig]
Posted by robost86 on 01:52:00 03-17-2002
You can do alot with photones. Uncrackable messages, for example.
Posted by Govtcheez on 13:32:00 03-18-2002
--> i think i'm gonna buy a book about encryption, it's an intersting topic
You could do that, or you could search on google for the "Handbook of Applied Cryptography", and get it free (and legal, too, at some university's website)... Otherwise, try "Applied Cryptogrpahy", by Bruce Schneier - those two are as close to bibles as there are for crypto. For good histories, try "The Codebreakers", by David Kahn, or "Crypto", by... umm... someone (I can't believe I can't remember who wrote the book I'm in the middle of... oh yeah - Steven Levy)
Posted by kpyro on 17:34:00 03-18-2002
Ok...hold the phone. I just wanted to know if anyone here thought that they would be able to decrypt something that I encrypt, Ok?
Posted by Govtcheez on 17:46:00 03-18-2002
-->Ok...hold the phone. I just wanted to know if anyone here thought that they would be able to decrypt something that I encrypt, Ok
The answer is maybe. It's difficult to say without knowing what the hell we're trying to decrypt.... Also, don't get all bent out of shape if your threads start to wander off topic - that's what threads do... Besides, at least we were still talking about crypto - it's not like we were talking about how often fabs dresses like a woman (how often is that, anyways? )
Posted by MoX on 18:05:00 03-18-2002
Fairly often
[addsig]
Posted by Govtcheez on 15:30:00 03-19-2002
--> there is no such thing as perfect encryption, yet. you can crack everything, but it takes time...
Except a one-time pad...
Posted by kpyro on 18:58:00 03-19-2002
Here is what I want someone to decrypt:
tktsbt~fYsUdƦXpjlsėsYhrxXuǫltA̻jd~PWȮltAǾjbo_~ƸjlYǼPytrŧSD}frAxsUҿfWrSPjCsbRrDlŬPrŴUdЀDfrCjdtɤDlƵOCsUSØXr×Wk«¾CxYR̀pWrtr̻UtűdEtrtrj`ZtrWlsȔŸdRѷbjDltAƒsȟǾ~Ex±lźg
This was encrypted using an encryption program I made. Please email me with the following info: name, time it took to crack, tools/methods used and anything else.
Posted by fsvara on 19:03:00 03-19-2002
hmm, could you please base64 encode this (shameless plug: use my base64 encoder at http://z.dyndns.biz/b64/ for it ), so that we can be sure that all those special characters are what they really should be and the stuff didn't get corrupted on it sway to the board
Posted by kpyro on 19:15:00 03-19-2002
Two things, i'm not running unix/linux and when I try to compile it using MVC++ 6.0 it gives me an error:
fatal error C1010: unexpected end of file while looking for precompiled header directive
Anyways I already went and decrypted the text from the board using my program and it works perfectly fine.
[addsig]
Posted by kpyro on 01:08:00 03-20-2002
If any can decrypt or thinks they know someone who can, please post a reply.
[addsig]
Posted by fsvara on 14:18:00 03-20-2002
well, it would be cool if you told just how the encryption works... Decrypting something with so little data, no plaintext counterpart, and no idea about how the algo works should be next to impossible for mere mortals like us
Posted by kpyro on 18:55:00 03-20-2002
It's really simple, all it does is takes a password and bumps the letters in the password up one and encrypts the text by taking the ASCII value of each character in the password and each character in the text and adds it. I am going to post a link to download my program on my site.
[addsig]
Posted by fsvara on 19:04:00 03-20-2002
hmm, and what happens when
1) the key is shorter than the text
2) the ascii values add to something -->255?
Posted by kpyro on 19:13:00 03-20-2002
When the key is shorter than the text, it repeats itself over and over again. When its -->255 it goes to the equevelant past 0. example ( 260 = 5 ).
[addsig]
Posted by kpyro on 18:48:00 03-22-2002
Is anyone out there able to help??
[addsig]
Posted by Govtcheez on 18:50:00 03-22-2002
I'll look tonight, when I get home... Hopefully I won't be too drunk to read it... Otherwise, I'll look this weekend, when I actually have time.
Posted by dxprog on 19:24:00 03-22-2002
Here is my VB encryption routine. This particular program encrypts a string, but you could also use it to encrypt a file. The encryption method is rather simple. Run a loop and get an individual character. I multiply the ASCII value of the character... aw heck. Just look at the code.
Posted by dxprog on 22:27:00 03-22-2002
Heh heh. Forgot the link. Here it is. www26.brinkster.com/mpxp/ypn/encryption.zip