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Author Topic: NXT :: descendant of Bitcoin - Updated Information  (Read 2755205 times)
VanBreuk
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February 11, 2014, 04:30:21 PM
 #32301

Need some test Nxt for asset exchange please;   9637023121254362310

2457591381965084256

 Somone with a good heart... please allow me a chance to test this awesome system, before I start posting cat pics begging... I know CYIAM would hate pics in posts Tongue

NO NO CATS BEGGING PLEASE here have 10K.

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February 11, 2014, 04:32:15 PM
 #32302

At this stage I don't know enough about the Nxt protocol to comment - but fundamentally what we need to do is make sure that a Nxt tx is signed as a whole (so nothing is outside of what is signed apart from the sig) and that the sig itself cannot have an equivalent (with say leading zeroes).

Nxt transaction has the following format:

64 bytes of the header
64 bytes of the signature
X bytes of the attachment

Before signing it looks:

64 bytes of the header
64 zeros
X bytes of the attachment

All [64+64+X] bytes r signed and the signature is placed instead of the zeros.

PS: Ordinary payment is the only transaction that doesn't have an attachment.
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February 11, 2014, 04:34:02 PM
 #32303

may i have some testNXT please

17567379695603145590

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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February 11, 2014, 04:34:38 PM
 #32304

Given what's happened to btct.co and bitfunder.com, could people issuing these assets end up in trouble later?

A good question - and another reason why I am not overly excited by AE as it stands. You'd be pretty brave not to be "anonymous" and list an Asset IMO.

This is why "atomic cross-chain transactions" *are* the holy-grail as you could deal through anonymous AE without needing to trust its owner as basically they would only then exist to set up a trade possibility between two parties (i.e. a means of finding each other and finding an agreed price) but the trade itself would happen in a way that the asset owner would have no control over (the fee in NXT being the only way that the "lister" could make anything at all assuming the system has been set up to allow this).


But how does this solve the problem? For example say I wanted to offer 10% of mynxt.info to investors. I don't feel comfortable doing it today because it would be easy to find me via the domain mynxt.info. How is that having having atomic cross-chain transactions would help in this case?

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February 11, 2014, 04:35:09 PM
 #32305

may i have some testNXT please

17567379695603145590

Sent 10k.
wesleyh
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February 11, 2014, 04:36:14 PM
 #32306

Given what's happened to btct.co and bitfunder.com, could people issuing these assets end up in trouble later?

A good question - and another reason why I am not overly excited by AE as it stands. You'd be pretty brave not to be "anonymous" and list an Asset IMO.

This is why "atomic cross-chain transactions" *are* the holy-grail as you could deal through anonymous AE without needing to trust its owner as basically they would only then exist to set up a trade possibility between two parties (i.e. a means of finding each other and finding an agreed price) but the trade itself would happen in a way that the asset owner would have no control over (the fee in NXT being the only way that the "lister" could make anything at all assuming the system has been set up to allow this).


But how does this solve the problem? For example say I wanted to offer 10% of mynxt.info to investors. I don't feel comfortable doing it today because it would be easy to find me via the domain mynxt.info. How is that having having atomic cross-chain transactions would help in this case?

He's talking only about crypto-to-crypto exchanges.
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February 11, 2014, 04:37:54 PM
 #32307

This is why "atomic cross-chain transactions" *are* the holy-grail as you could deal through anonymous AE without needing to trust its owner as basically they would only then exist to set up a trade possibility between two parties (i.e. a means of finding each other and finding an agreed price) but the trade itself would happen in a way that the asset owner would have no control over (the fee in NXT being the only way that the "lister" could make anything at all assuming the system has been set up to allow this).


let's talk about it.
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February 11, 2014, 04:38:26 PM
 #32308

Given what's happened to btct.co and bitfunder.com, could people issuing these assets end up in trouble later?

A good question - and another reason why I am not overly excited by AE as it stands. You'd be pretty brave not to be "anonymous" and list an Asset IMO.

This is why "atomic cross-chain transactions" *are* the holy-grail as you could deal through anonymous AE without needing to trust its owner as basically they would only then exist to set up a trade possibility between two parties (i.e. a means of finding each other and finding an agreed price) but the trade itself would happen in a way that the asset owner would have no control over (the fee in NXT being the only way that the "lister" could make anything at all assuming the system has been set up to allow this).


But how does this solve the problem? For example say I wanted to offer 10% of mynxt.info to investors. I don't feel comfortable doing it today because it would be easy to find me via the domain mynxt.info. How is that having having atomic cross-chain transactions would help in this case?

He's talking only about crypto-to-crypto exchanges.

Ah, got it. For that use case, indeed cross-chain transactions would be amazing

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Come-from-Beyond
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February 11, 2014, 04:38:35 PM
 #32309

That was C-f-B itself, who have forged that lucky block. AFAIR, he returned most of fee to alias issuer.

That's how rumors that I'm a SkyNet bot r being created...
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February 11, 2014, 04:39:08 PM
 #32310

Given what's happened to btct.co and bitfunder.com, could people issuing these assets end up in trouble later?

A good question - and another reason why I am not overly excited by AE as it stands. You'd be pretty brave not to be "anonymous" and list an Asset IMO.

This is why "atomic cross-chain transactions" *are* the holy-grail as you could deal through anonymous AE without needing to trust its owner as basically they would only then exist to set up a trade possibility between two parties (i.e. a means of finding each other and finding an agreed price) but the trade itself would happen in a way that the asset owner would have no control over (the fee in NXT being the only way that the "lister" could make anything at all assuming the system has been set up to allow this).


I have a hard time believing that anything makes you overly excited.  Wink  I do agree with cross-chain transactions, all the more reason why we need to be building coins on top of Nxt blockchain!
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February 11, 2014, 04:39:38 PM
 #32311

Nxt transaction has the following format:

64 bytes of the header
64 bytes of the signature
X bytes of the attachment

Before signing it looks:

64 bytes of the header
64 zeros
X bytes of the attachment

All [64+64+X] bytes r signed and the signature is placed instead of the zeros.

PS: Ordinary payment is the only transaction that doesn't have an attachment.

Then unless the signature can have more than one equivalent representation I don't see why we actually *have* a malleability problem?

Care to enlighten me?

With CIYAM anyone can create 100% generated C++ web applications in literally minutes.

GPG Public Key | 1ciyam3htJit1feGa26p2wQ4aw6KFTejU
CIYAM
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February 11, 2014, 04:41:40 PM
 #32312

I have a hard time believing that anything makes you overly excited.  Wink

Believe me - if I get overly excited by Nxt then I think all of you would have already become very rich.

Grin

With CIYAM anyone can create 100% generated C++ web applications in literally minutes.

GPG Public Key | 1ciyam3htJit1feGa26p2wQ4aw6KFTejU
ChuckOne
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February 11, 2014, 04:42:37 PM
 #32313

Nxt transaction has the following format:

64 bytes of the header
64 bytes of the signature
X bytes of the attachment

Before signing it looks:

64 bytes of the header
64 zeros
X bytes of the attachment

All [64+64+X] bytes r signed and the signature is placed instead of the zeros.

PS: Ordinary payment is the only transaction that doesn't have an attachment.

Then unless the signature can have more than one equivalent representation I don't see why we actually *have* a malleability problem?

Care to enlighten me?


Isn't there a second signature of the issuer? I mean I do not want a node to change my transactions, right?

Sorry, was somehow confused by thinking of blocks.
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February 11, 2014, 04:45:03 PM
 #32314

"G" captain please send test nxt or anybody who has a lot still thanks

6815286805809610855

sent 10k Test NXT




_________________


NXTio Now is in Chinese! Smiley

http://www.nxtio.org/?lang=zh

Thank you very much to nekokoe for his translation!
NXT Donations: 16729052528737221895
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February 11, 2014, 04:46:23 PM
 #32315

Then unless the signature can have more than one equivalent representation I don't see why we actually *have* a malleability problem?

Care to enlighten me?

3rd party could add a number equal to Curve25519 group order to create a valid transaction with another id. That's how DoctorEvil hacked Nxt to replay a transaction.

Also the legit owner of a transaction could generate zillions of valid signatures for the same set of data.
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February 11, 2014, 04:48:57 PM
 #32316

That was C-f-B itself, who have forged that lucky block. AFAIR, he returned most of fee to alias issuer.

That's how rumors that I'm a SkyNet bot r being created...
Being Android device myself, I'm often confuses with human gender identity. Only boobs IRL can help me. Have someone good boobs asset?
Come-from-Beyond
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February 11, 2014, 04:49:25 PM
 #32317

Being Android device myself, I'm often confuses with human gender identity. Only boobs IRL can help me. Have someone good boobs asset?

(.)(.)
ImmortAlex
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February 11, 2014, 04:50:55 PM
 #32318

Being Android device myself, I'm often confuses with human gender identity. Only boobs IRL can help me. Have someone good boobs asset?

(.)(.)
Gimme two!
CIYAM
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February 11, 2014, 04:53:00 PM
 #32319

3rd party could add a number equal to Curve25519 group order to create a valid transaction with another id. That's how DoctorEvil hacked Nxt to replay a transaction.

Also the legit owner of a transaction could generate zillions of valid signatures for the same set of data.

Aha - my math lets me down unfortunately but I do get your point.

So is there any way you think that this could be solved?

With CIYAM anyone can create 100% generated C++ web applications in literally minutes.

GPG Public Key | 1ciyam3htJit1feGa26p2wQ4aw6KFTejU
Come-from-Beyond
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February 11, 2014, 04:54:44 PM
 #32320

3rd party could add a number equal to Curve25519 group order to create a valid transaction with another id. That's how DoctorEvil hacked Nxt to replay a transaction.

Also the legit owner of a transaction could generate zillions of valid signatures for the same set of data.

Aha - my math lets me down unfortunately but I do get your point.

So is there any way you think that this could be solved?


Easily. We just need ID_2 that is calculated like ID but with signature bytes set back to zeros.
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