Home | Community | Message Board
You are not signed in.
Sign In New Account
Forum Index Search Posts Trusted Vendors Highlights Galleries FAQ User List Chat Store Random Growery


This site includes paid links. Please support our sponsors.

General Interest > Science and Technology
Threaded Mode Threaded  Previous topic Previous  View all topics Index  Next topic Next 

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: Unfolding Nature Unfolding Nature: Being in the Implicate Order   Sporeworks.EU Spores for European Microscopy   Mushroom-Hut Substrate Bags

Jump to first unread post Pages: | 1 | 2  [ show all ]
Re: proof of police on the net!!!! [Re: trendal]
    #617297 -

everytime i come around your city


--------------------
my tax dollars going to more hits of acid for charles manson

Edited by Lallafa (04/16/05 08:30 PM)

Extras: Filter Print Post Top
Re: proof of police on the net!!!! [Re: informer]
    #617311 -

Moving to Security...


--------------------
First person to PM me with a truly witty sig gets to see their words at the bottom of my posts :wink:

Extras: Filter Print Post Top
Re: proof of police on the net!!!! [Re: Lallafa]
    #617347 -

The enigma is different, as it was a mechanical device based on mathematical concepts. Modern-day computer cryptography is entirely done with math, and the math behind it (elliptic curves) has no known weaknesses.

The enigma did have a weakness: humans. The enigma was broken because the mathematicians realized that humans are predictable, and that they could predict certain keys for the enigma because the german operartors were being lazy when they set the keys for the day.


--------------------
Once, men turned their thinking over to machines in the hope that this would set them free.
But that only permitted other men with machines to enslave them.

Extras: Filter Print Post Top
Re: proof of police on the net!!!! [Re: trendal]
    #617621 -

Didn't PGP have a security hole not too long ago?

/me dreams of owning a quantum computer so he could crack anything.


--------------------
Your friendly neighborhood loon

Edited by 3DSHROOM (04/24/02 05:34 PM)

Extras: Filter Print Post Top
Re: proof of police on the net!!!! [Re: 3DSHROOM]
    #617835 -

"Didn't PGP have a security hole not too long ago?"

Yes and no. There was a security hole in the code, that comes down to human error. The math behind the encryption is still unbreakable.

(for anyone who isn't familiar with PGP...)
PGP encryption is a type of "public-key cryptography", meaning that when you generate a "key pair" for your use, you create two separate (but mathematically linked) keys. The first is your "public key" which you freely give out to anyone who wants to send you encrypted data. A person would use your public key to encrypt what they want to send to you. Once something is encrypted with your public key, the only way to decrypt is is to use the second key you created: your "private key". The public and private keys are mathematicall linked (that's the complex part :P) but it is virtually impossible to retrieve your private key by looking at your public key.

Ok, that being said: the security flaw. The PGP software allows you to add other private keys, called "additional decryption key", to your public key. The idea is that a buisiness could have their employees add a management's ADK to their public keys, so that the management could decrypt something sent to their employees. Seems simple enough, but there's a problem (although far-fetched).

The situation: Mark has a key pair (public/private). He gives his public key to John so that John can send Mark encrypted data. If I can get ahold of Mark's public key, I could modify it and add my own ADK to it, making it possible for me to decrypt something meant for Mark. The hard part is that I now have to somehow get my modified version of Mark's public key into the hands of John without either of them knowing what I've done. If I can do that...then I still have to intercept whatever John is sending Mark. If I can do all that, I can decrypt what is being sent to Mark.

So yeah. There was a security flaw, but it's a little far fetched. The encryption is still flawless, but I can sneak into the conversation if I'm good enough. Of course, none of this applies to someone who is encrypting something for personal use only (meaning they haven't given anyone their public key, so I have no way of getting it).

If you want to read about the flaw, I think the link is http://senderek.de/security/key-experiments.html


--------------------
Once, men turned their thinking over to machines in the hope that this would set them free.
But that only permitted other men with machines to enslave them.

Edited by trendal (04/24/02 10:29 PM)

Extras: Filter Print Post Top
Re: proof of police on the net!!!! [Re: trendal]
    #618683 -

I never thought of doing that. If the police had cooperation from an ISP, they could filter for any key you download and do the switch on you.

...

thilfy pigs

...

But an ever bigger issue is how the user manages their keys. For a long time a certain person w/ website had kept a public key on his website after the police had seized his computer and had a chance to grab his private key. I won't name names but it was a spore supplier.

...

*puts on a fugazi CD

Extras: Filter Print Post Top
Jump to top Pages: | 1 | 2  [ show all ]

Shop: Unfolding Nature Unfolding Nature: Being in the Implicate Order   Sporeworks.EU Spores for European Microscopy   Mushroom-Hut Substrate Bags

General Interest > Science and Technology
Threaded Mode Threaded  Previous topic Previous  View all topics Index  Next topic Next 

Similar ThreadsPosterViewsRepliesLast post
* Should The Internet Be Policed?
( 1 2 all )		 Jackal 3,722 31 04/11/03 12:04 PM
by eric_the_red
* Chrome won't remember Passphrase to Decrypt PM's Help! Barakanaten 867 9 12/03/10 02:51 PM
by Barakanaten
* Senate OKs FBI Net Spying Ellis Dee 2,183 13 10/22/02 11:58 AM
by subtlepoint
* Amnesty to target net repression asd11 347 0 05/29/06 08:30 AM
by asd11
* encryption standard that's future-proof and can support stupidly high key sizes? OJK 916 4 11/20/06 08:13 AM
by OJK
* .NET BrAiN 784 9 01/13/05 02:52 PM
by BrAiN
* Net taxes could arrive by this fall Le_Canard 1,125 11 06/04/07 03:03 AM
by makaveli8x8
* .net framework update? Simisu 666 7 10/11/05 01:47 PM
by drtyfrnk

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: trendal, automan, Northerner
5,207 topic views. 0 members, 3 guests and 4 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2026 Mind Media. Some rights reserved.

Generated in 0.029 seconds spending 0.011 seconds on 17 queries.