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 Author Topic: NXT :: descendant of Bitcoin - Updated Information  (Read 2752714 times)
Zahlen
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 February 08, 2014, 11:22:05 PM

PUBLIC MATH SERVICE ANNOUNCEMENT

Can someone explain how he found out the passphrase of the genesis account?

"It was a bright cold day in April, and the clocks were striking thirteen."

It has 14 words and some punctuation. Ignoring the punctuation and using a simple 2000 words long dictionary (and this is tiny! There are 1013913 words in the English language) we get 2000^14 possible passphrases, or about 10^46 possibilities, if we go by characters from the alphabet, it has 26^72 ~ 10^101 possibilities. A password written in base 58 and 26 characters long is also about 10^46 possibilities. In comparison, a random 8 character long password takes 3 hours to crack on a desktop pc. 9 char -> 3days, 10 char -> 1 year, 11 char -> 48 years. 26 char -> An octillion years.

Now it is a given that the entropy of a random password is much higher than that of a phrase from a novel, but I still can't see how he could crack the passphrase unless the entire thing was already in his dictionary! Let's not forget he was using a python script which is notably slow!

You've answered your own question An earlier poster linked to an Ars Technica article explaining this approach to password cracking in more detail.

Lots of people have already replied to this from the security perspective. I'm replying to this from the math perspective. Math is not simply about crunching numbers to get answers, it's really about reasoning and proof. This reasoning usually takes the form of

Quote
If (certain conditions hold), then (certain things must be true).

A lot of the 'math' I've been seeing lately forget to check that the conditions indeed hold. When you make a claim, and want to convince other people of that claim, the burden of proof should be on you to establish that the conditions hold, and that your claims follow from those conditions.

This is time-consuming though, we can't always reason through everything from basic principles. It's very tempting, and for little things more practical to just intuit/jump ahead, I'm often guilty of this. But we should keep in mind that if we jump ahead like this, we can't be certain our claims are correct

In service of math, and consequently the public.

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mkmen
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 February 08, 2014, 11:48:23 PM

It seems to depend very non-linearly on the amount of memory. I don't have a better solution yet other than just making sure you give it enough memory. For me anything above -Xmx1024M works fine, 768M is slow, 512M crashed after more than 10 min of high CPU load. It is strange because last week I was able to run it with only -Xmx256M. These are the timings I get now:

-Xmx4096M:   55 s
-Xmx1024M:   58 s
-Xmx768M:     2 min 26 s
-Xmx512M:     > 10 min, out of memory

Running 0.7.1 since release no probs with -Xmx500M

edit: not forging though
smartwart
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 February 08, 2014, 11:52:53 PM

version 0.7.x runs stable for me.
JL ,  you bring it up to production state, step by step.
Keep up the good work!!!

NxT: 13574045486980287597
POPPP
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 February 09, 2014, 12:16:42 AMLast edit: February 09, 2014, 01:01:45 AM by POPPP

I've started a section on the wiki for organizing our projects. In particular, check out the List of Proposals and Bounties page. I'm thinking we could link to stuff that is "active" there. That could be links to forum threads, google docs, or other wiki pages where projects are being discussed and hashed out, and project statuses are being updated.

For a good example of this, check out the wiki page for the new address format using Reed-Solomon encoding that NxtChg started a long time ago. Very clearly organized.

My thinking is to use the Discussion pages for throwing around ideas, criticisms, suggestions, etc, and use the main pages for summary of the proposal/project status.

Not enough folks are using Discussion pages . Click on this tab more often:

James, this could be the right place for you to put up your (many, many!) ideas for comment. EvilDave, you could put your carbon offset proposal here too. Lots more projects that I don't remember (this is why we need to put all of them in a convenient place).

Pin, maybe it could be easier if you got everyone to post their projects on the wiki instead? Then you can just go through a list of links.

Don't worry about messing things up, it's a wiki, everything can be reversed. And don't worry if you don't know wiki formatting, just type/copy and paste. Other people can help you clean things up. If there's demand, I'll put up a quick guide to simple wiki editing.

I'll be technical support. Anyone has a problem, e.g. getting errors, can't figure out how to do something, ask me and I'll troubleshoot.

+1 IMPORTANT that would be more clear and more real
opticalcarrier
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 February 09, 2014, 12:53:04 AM

version 0.7.x runs stable for me.
JL ,  you bring it up to production state, step by step.
Keep up the good work!!!

seems to be pretty stable for me as well.  did get this though:

Code:
[2014-02-08 16:04:55.838] DEBUG: Will pop block 16510352762190493348 at height 61626
[2014-02-08 17:16:06.707] DEBUG: Will pop block 13029646756006985243 at height 61676
[2014-02-08 18:31:33.122] DEBUG: Failed to analyze hallmark for peer nxt.homer.ru, java.nio.BufferUnderflowException
^[GS]^
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 February 09, 2014, 01:08:42 AM

0.7.1... believe that this will work on a dedicated server?

the 0.7.x version is a bad idea!
Anon136
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 February 09, 2014, 01:09:04 AM

https://bitcointalk.org/index.php?topic=455861

I could use more opinions on the off brand vs shot vs both question.

Rep Thread: https://bitcointalk.org/index.php?topic=381041
If one can not confer upon another a right which he does not himself first possess, by what means does the state derive the right to engage in behaviors from which the public is prohibited?
ebereon
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 February 09, 2014, 01:21:00 AM

"Scanning blockchain" takes ages (over 10 minutes).
Is there any way to speed it up?

It seems to depend very non-linearly on the amount of memory. I don't have a better solution yet other than just making sure you give it enough memory. For me anything above -Xmx1024M works fine, 768M is slow, 512M crashed after more than 10 min of high CPU load. It is strange because last week I was able to run it with only -Xmx256M. These are the timings I get now:

-Xmx4096M:   55 s
-Xmx1024M:   58 s
-Xmx768M:     2 min 26 s
-Xmx512M:     > 10 min, out of memory

Oh well, no raspberry  anymore

It will only work with it when starting without db and build it new. After restart its not working anymore...

odroid:
-Xmx1024M: ~5min
-Xmx512M:   ~25min but starting

 Own, Track───────────  and Pay with ARAX Your Universal.Crypto Wallet. █▄                                      ▄█▀███▄                                ▄███▀▄ ▀████▄                          ▄████▀ ▄▀██▄██████▄         ██         ▄██████▄██▀  ▀██████████▄     ████     ▄██████████▀ █▄▄▄▀█████████   ██████  ▄█████████▀▄▄▄█  ▀███████████▀▀ ███  ███  ▀███████████▀    ███████████▄███    ███▄███████████      ▀███████████      ███████████▀         ▀███████        ███████▀             ███          ███            ███            ███           ███              ███          ███                ███         ███                  ███ arax█..Beta..█ || BETA VERSIONNOW LIVE! ▄▀█▄▄           ██▄▀███▄▄       ████▄▀████▀▄▄   ██████▄▀█▀█████ █████▀▄███▄▀▀   ███▀▄██▀▀       █▀▄█▀▀ GET IN ON.Google Play. || TELEGRAM      TWITTER        ANN THREADFACEBOOK   MEDIUM
Zahlen
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 February 09, 2014, 01:36:51 AMLast edit: February 09, 2014, 02:28:25 AM by Zahlen

chess tourney for Nxt is about to start.
join
http://www.freechess.org/Events/NXT/

missed it, will join next one!
Too bad it's always at time we have dinner here. My wife wouldn't be happy if I play...

Chess is out. Chess 2 is in.

(ducks and covers)

But seriously, I think the folks over at sirlin.net and fantasystrike.com will like Nxt. A lot of competitive gamers and generally smart people there. And David Sirlin (the game designer and guy who runs the sites) might be interested in payment options (i.e. Nxt) for the games at fantasystrike.com.

Marketing, what do you guys think?

salsacz
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 February 09, 2014, 01:44:44 AM

Zahlen: the most important question is: in how many magazines could be presented an article about such tournament

Nxt tips: NXT-R67P-6BZ2-XWAK-8RHZR | Nxt forum | Nxt Academy | Donate for Nxt at the Universities // BTCD: RVMLrnxYYy7uy8YZo9FcGfXbk1ZMnNifdg
allwelder
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Activity: 1498
Merit: 1000

 February 09, 2014, 01:46:10 AM

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Release 0.7.1

http://download.nxtcrypto.org/nxt-client-0.7.1.zip

sha256: 08f54b324ec4e644adc4864368e31c7ed14feb52918ca4522377c94d1f360f8a

Thank you,Jean-Luc.
seems working well for me .
salsacz
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 February 09, 2014, 01:53:10 AM

Quote
In order to create a new internet the central infrastructure should probably be a peer to peer social network, e-mail, search engine, cloud storage, file sharing and cryptocurrency

Is it possible to transform us to the app with peer to peer social network, e-mail, search engine, cloud storage and file sharing?

PS: Bitcloud for dummies: http://f.cl.ly/items/410X3x0N2M2y1Q3V3b2W/BitCloudForDummys.pdf

Nxt tips: NXT-R67P-6BZ2-XWAK-8RHZR | Nxt forum | Nxt Academy | Donate for Nxt at the Universities // BTCD: RVMLrnxYYy7uy8YZo9FcGfXbk1ZMnNifdg
gs02xzz
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 February 09, 2014, 01:53:48 AM

https://bitcointalk.org/index.php?topic=455861

I could use more opinions on the off brand vs shot vs both question.

+1. This is nice. I wonder who will do the first IPO in Nxt AE. Next Mobile? It seems a voting system becomes urgent after the launch of AE since it is the best way for shareholders to make crucial decisions after the companies are formed in Nxt.
allwelder
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 February 09, 2014, 02:09:29 AM

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Release 0.7.1

http://download.nxtcrypto.org/nxt-client-0.7.1.zip

sha256: 08f54b324ec4e644adc4864368e31c7ed14feb52918ca4522377c94d1f360f8a

Thank you,Jean-Luc.
seems working well for me .
Code:
[2014-02-09 09:57:37.982] Scanning blockchain...
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jetty.start.Main.invokeMain(Main.java:297)
at org.eclipse.jetty.start.Main.start(Main.java:724)
at org.eclipse.jetty.start.Main.main(Main.java:103)
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.util.jar.Attributes.read(Unknown Source)
at java.util.jar.Manifest.read(Unknown Source)
at java.util.jar.Manifest.<init>(Unknown Source)
at java.util.jar.JarFile.getManifestFromReference(Unknown Source)
at java.util.jar.JarFile.getManifest(Unknown Source)
at sun.misc.URLClassPath\$JarLoader\$2.getManifest(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access\$100(Unknown Source)
at java.net.URLClassLoader\$1.run(Unknown Source)
at java.net.URLClassLoader\$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.jetty.util.ssl.SslContextFactory.loadKeyStore(SslContextF
actory.java:864)
at org.eclipse.jetty.util.ssl.SslContextFactory.doStart(SslContextFactor
y.java:270)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:69)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLi
feCycle.java:117)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(Container
LifeCycle.java:99)
at org.eclipse.jetty.server.SslConnectionFactory.doStart(SslConnectionFa
ctory.java:64)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:69)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLi
feCycle.java:117)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(Container
LifeCycle.java:99)
at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.
java:259)
at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNet
workConnector.java:81)
at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java
:218)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:69)
at org.eclipse.jetty.server.Server.doStart(Server.java:336)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:69)
at org.eclipse.jetty.xml.XmlConfiguration\$1.run(XmlConfiguration.java:12
50)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:117
4)
The cmd window disappear after scanning blocks,what should I do?
Thanks.
btc2nxt
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Merit: 100

 February 09, 2014, 02:12:39 AM

On the 11th of Feb we r launching public test of Asset Exchange. Do we have at least 1 client ready for that? What platforms does it support?

i have coded a test program in a windows platform with delphi xe4 for myself
i can update it for public use today.
Zahlen
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Activity: 98
Merit: 10

 February 09, 2014, 02:26:07 AM

Zahlen: the most important question is: in how many magazines could be presented an article about such tournament

This way won't be newsworthy, a Chess 2 tournament wouldn't get talked about in wide-audience mags or blogs, it wouldn't interest mainstream or the crypto crowd. But it would interest competitive gamers, fighting gamers, board gamers, people who have been in the sirlin.net community for a long time. Chess 2 (and Sirlin's other games for that matter) isn't just a fad, it's been deeply balance-tested for a few years (like all of his games), and there's a dedicated following. Basically it's a specific demographic that may be more interested in Nxt than regular folks.

allwelder
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Activity: 1498
Merit: 1000

 February 09, 2014, 02:51:06 AM

We construct Nxt China:www.nxts.org

We also construct Nxt Chinese community www.nxts.info

Welcome all of you visit the above forum.
Any suggestion,plz dont hesitate to contact us.
Thank you.
ImmortAlex
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 February 09, 2014, 03:45:36 AM

-Xmx768M:     2 min 26 s
1 min 04 s on my Core i5 3570K + SSD.
MyZhre
Full Member

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Activity: 193
Merit: 100

 February 09, 2014, 03:52:27 AM

RaspBerry PI run out of memory and crash.
Have to wait for new version without "Scanning blockchain ..."

NXT: 13997163105778396158
Anon136
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Activity: 1666
Merit: 1211

 February 09, 2014, 04:06:59 AM

https://bitcointalk.org/index.php?topic=455861

I could use more opinions on the off brand vs shot vs both question.

+1. This is nice. I wonder who will do the first IPO in Nxt AE. Next Mobile? It seems a voting system becomes urgent after the launch of AE since it is the best way for shareholders to make crucial decisions after the companies are formed in Nxt.

atleast that voting question will be cut and dry . 1 share 1 vote.

Rep Thread: https://bitcointalk.org/index.php?topic=381041
If one can not confer upon another a right which he does not himself first possess, by what means does the state derive the right to engage in behaviors from which the public is prohibited?
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