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Author Topic: NXT :: descendant of Bitcoin - Updated Information  (Read 2750621 times)
Come-from-Beyond
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February 08, 2014, 06:32:17 PM
 #31241

Yeah but i want to know what produce this issue

Orphaned blocks for example.
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February 08, 2014, 06:33:59 PM
 #31242

Yeah but i want to know what produce this issue

Orphaned blocks for example.

Ok thanks! After that i have to delete blocks.nxt and transactions.nxt Sad
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February 08, 2014, 06:34:50 PM
 #31243




Introducing tipNXT.com

With tipNXT.com you can tip any Nxt user worldwide!

I hope that this service will be used often! Thank you very much.


I don't get it. Why would I want to use this, enter my account secret via non-SSL, when I can tip an account with any client?


Somebody would have to be f@#King insane to use this service.  Hey, nothing personal, Passion_ltc !
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February 08, 2014, 06:42:18 PM
 #31244




Introducing tipNXT.com

With tipNXT.com you can tip any Nxt user worldwide!

I hope that this service will be used often! Thank you very much.


I don't get it. Why would I want to use this, enter my account secret via non-SSL, when I can tip an account with any client?


Somebody would have to be f@#King insane to use this service.  Hey, nothing personal, Passion_ltc !

Exactly my thoughts, nothing against the enthusiasm but this service makes no other sense than as account password collector.
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February 08, 2014, 06:52:30 PM
 #31245

You know you've hit the big league when NXT is being promoted by Leon Kung Fu and Tai Tranquill Zen.

Just watched all the videos - good job, the world needs more of this.
Passion_ltc
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February 08, 2014, 06:58:15 PM
 #31246




Introducing tipNXT.com

With tipNXT.com you can tip any Nxt user worldwide!

I hope that this service will be used often! Thank you very much.


I don't get it. Why would I want to use this, enter my account secret via non-SSL, when I can tip an account with any client?


Somebody would have to be f@#King insane to use this service.  Hey, nothing personal, Passion_ltc !

Exactly my thoughts, nothing against the enthusiasm but this service makes no other sense than as account password collector.
You don't have to use it with your big NXT accounts. Maybe create a tip account with a few NXT inside.

A tip is more of a 1-100 NXT donation. No big movements. Wink


I added a list with a few contributors. You can see it if you click on "VIPs" in the navigation.

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February 08, 2014, 07:09:45 PM
 #31247

I don't understand your issue with this, its another feature that adds value to Nxt.  Is it personally affecting you in some way?  Try to be more constructive, Passion_ltc is a valued member of the community and he's built some great products so far.

Some nice centralized based-on-trust feature? Exactly what I want to see in Nxt. Give me 2 of them

Okay, 2 coming right up!
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February 08, 2014, 07:20:28 PM
 #31248

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

NXT: 5231236538923913892
Jean-Luc
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February 08, 2014, 07:36:30 PM
 #31249

Yeah but i want to know what produce this issue

Orphaned blocks for example.

Ok thanks! After that i have to delete blocks.nxt and transactions.nxt Sad
No, you shouldn't have to. Popping off a block or a few blocks is common and normal.

lead Nxt developer, gpg key id: 0x811D6940E1E4240C
Nxt blockchain platform | Ardor blockchain platform | Ignis ICO
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February 08, 2014, 07:41:56 PM
 #31250

How does one sign a transaction on the client side instead of sending the password in the clear to the server? Any info on this?
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February 08, 2014, 07:44:44 PM
 #31251

Passion_LTC, for there to be a remote chance in hell of people entering their password on your site you need ssl and client side asymmetric encryption with secure server side decryption.

Code:


function RSAKeyPair(encryptionExponent, decryptionExponent, modulus)
{
this.e = biFromHex(encryptionExponent);
this.d = biFromHex(decryptionExponent);
this.m = biFromHex(modulus);

this.chunkSize = 2 * biHighIndex(this.m);
this.radix = 16;
this.barrett = new BarrettMu(this.m);
}

function twoDigit(n)
{
return (n < 10 ? "0" : "") + String(n);
}

function encryptedString(key, s)
{
var a = new Array();
var sl = s.length;
var i = 0;
while (i < sl) {
a[i] = s.charCodeAt(i);
i++;
}

while (a.length % key.chunkSize != 0) {
a[i++] = 0;
}

var al = a.length;
var result = "";
var j, k, block;
for (i = 0; i < al; i += key.chunkSize) {
block = new BigInt();
j = 0;
for (k = i; k < i + key.chunkSize; ++j) {
block.digits[j] = a[k++];
block.digits[j] += a[k++] << 8;
}
var crypt = key.barrett.powMod(block, key.e);
var text = key.radix == 16 ? biToHex(crypt) : biToString(crypt, key.radix);
result += text + " ";
}
return result.substring(0, result.length - 1); // Remove last space.
}

function decryptedString(key, s)
{
var blocks = s.split(" ");
var result = "";
var i, j, block;
for (i = 0; i < blocks.length; ++i) {
var bi;
if (key.radix == 16) {
bi = biFromHex(blocks[i]);
}
else {
bi = biFromString(blocks[i], key.radix);
}
block = key.barrett.powMod(bi, key.d);
for (j = 0; j <= biHighIndex(block); ++j) {
result += String.fromCharCode(block.digits[j] & 255,
                             block.digits[j] >> 8);
}
}

if (result.charCodeAt(result.length - 1) == 0) {
result = result.substring(0, result.length - 1);
}
return result;
}

Code:
function BarrettMu(m)
{
this.modulus = biCopy(m);
this.k = biHighIndex(this.modulus) + 1;
var b2k = new BigInt();
b2k.digits[2 * this.k] = 1; // b2k = b^(2k)
this.mu = biDivide(b2k, this.modulus);
this.bkplus1 = new BigInt();
this.bkplus1.digits[this.k + 1] = 1; // bkplus1 = b^(k+1)
this.modulo = BarrettMu_modulo;
this.multiplyMod = BarrettMu_multiplyMod;
this.powMod = BarrettMu_powMod;
}

function BarrettMu_modulo(x)
{
var q1 = biDivideByRadixPower(x, this.k - 1);
var q2 = biMultiply(q1, this.mu);
var q3 = biDivideByRadixPower(q2, this.k + 1);
var r1 = biModuloByRadixPower(x, this.k + 1);
var r2term = biMultiply(q3, this.modulus);
var r2 = biModuloByRadixPower(r2term, this.k + 1);
var r = biSubtract(r1, r2);
if (r.isNeg) {
r = biAdd(r, this.bkplus1);
}
var rgtem = biCompare(r, this.modulus) >= 0;
while (rgtem) {
r = biSubtract(r, this.modulus);
rgtem = biCompare(r, this.modulus) >= 0;
}
return r;
}

function BarrettMu_multiplyMod(x, y)
{
/*
x = this.modulo(x);
y = this.modulo(y);
*/
var xy = biMultiply(x, y);
return this.modulo(xy);
}

function BarrettMu_powMod(x, y)
{
var result = new BigInt();
result.digits[0] = 1;
var a = x;
var k = y;
while (true) {
if ((k.digits[0] & 1) != 0) result = this.multiplyMod(result, a);
k = biShiftRight(k, 1);
if (k.digits[0] == 0 && biHighIndex(k) == 0) break;
a = this.multiplyMod(a, a);
}
return result;
}
Code:
function RSAKeyPair(encryptionExponent, decryptionExponent, modulus)
{
this.e = biFromHex(encryptionExponent);
this.d = biFromHex(decryptionExponent);
this.m = biFromHex(modulus);

this.chunkSize = 2 * biHighIndex(this.m);
this.radix = 16;
this.barrett = new BarrettMu(this.m);
}

function twoDigit(n)
{
return (n < 10 ? "0" : "") + String(n);
}

function encryptedString(key, s)

{
var a = new Array();
var sl = s.length;
var i = 0;
while (i < sl) {
a[i] = s.charCodeAt(i);
i++;
}

while (a.length % key.chunkSize != 0) {
a[i++] = 0;
}

var al = a.length;
var result = "";
var j, k, block;
for (i = 0; i < al; i += key.chunkSize) {
block = new BigInt();
j = 0;
for (k = i; k < i + key.chunkSize; ++j) {
block.digits[j] = a[k++];
block.digits[j] += a[k++] << 8;
}
var crypt = key.barrett.powMod(block, key.e);
var text = key.radix == 16 ? biToHex(crypt) : biToString(crypt, key.radix);
result += text + " ";
}
return result.substring(0, result.length - 1); // Remove last space.
}

function decryptedString(key, s)
{
var blocks = s.split(" ");
var result = "";
var i, j, block;
for (i = 0; i < blocks.length; ++i) {
var bi;
if (key.radix == 16) {
bi = biFromHex(blocks[i]);
}
else {
bi = biFromString(blocks[i], key.radix);
}
block = key.barrett.powMod(bi, key.d);
for (j = 0; j <= biHighIndex(block); ++j) {
result += String.fromCharCode(block.digits[j] & 255,
                             block.digits[j] >> 8);
}
}
// Remove trailing null, if any.
if (result.charCodeAt(result.length - 1) == 0) {
result = result.substring(0, result.length - 1);
}
return result;
}
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February 08, 2014, 08:00:13 PM
 #31252




Introducing tipNXT.com

With tipNXT.com you can tip any Nxt user worldwide!

I hope that this service will be used often! Thank you very much.


I don't get it. Why would I want to use this, enter my account secret via non-SSL, when I can tip an account with any client?


Somebody would have to be f@#King insane to use this service.  Hey, nothing personal, Passion_ltc !

Things like this require local signing and only the signed transaction then is broadcast to the server.

 We need more  software (local clients, javascript code) that the websites like the above can use where user signs the transaction on his own machine.

Now instead of wasting "bounties" and time on insecure voodoo ideas like plugins, scripting VM, this is something that is really useful. Basically it would mean you can connect to any online server/service (like tipNXT.com) and use it safely as you will never broadcast your password over the internet.

Where is the bounty on that?

This should have 100K+ bounty and it should be implemented in such a way that any site or client can use it.


NXT-GZYP-FMRT-FQ9K-3YQGS
https://nxtforum.org
Come-from-Beyond
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February 08, 2014, 08:04:29 PM
 #31253

How does one sign a transaction on the client side instead of sending the password in the clear to the server? Any info on this?

I'm working on this. The workflow will look like:

1. U use prepareTransaction API call that returns raw bytes
2. U sign the bytes and inject the signature into them
3. U use broadcastTransaction to send the transaction
Come-from-Beyond
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February 08, 2014, 08:09:57 PM
 #31254

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?
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February 08, 2014, 08:15:45 PM
 #31255


blockchain explorer node 87.230.14.1 still runs on 0.5.11

does this effect the blockchain explorer?

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February 08, 2014, 08:19:10 PM
 #31256


blockchain explorer node 87.230.14.1 still runs on 0.5.11

does this effect the blockchain explorer?

No, if it sees 0.6.0+ nodes.

I'm talking about that critical bug. It still could end following another branch due to other changes.
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February 08, 2014, 08:27:54 PM
 #31257

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?

we wil see. nxtFreeRider is written in python3 using PyQt. It has a bunch of dependincies, that are all straightforward to obtain. should run without a hitch on ubuntu, debian, and all other linuxes. Windows - good chance - MAC no idea.

February 11th? good chance, but I won't bet my life on it. maybe late in the evening?  What will public test of Asset Exchnage mean? on the TESTNET or on the real nxt-Net?
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February 08, 2014, 08:32:37 PM
 #31258

What will public test of Asset Exchnage mean? on the TESTNET or on the real nxt-Net?

Testnet. I'll be giving testcoins to everyone.
l8orre
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February 08, 2014, 08:36:31 PM
 #31259

What will public test of Asset Exchnage mean? on the TESTNET or on the real nxt-Net?

Testnet. I'll be giving testcoins to everyone.

uff. testnet is good. again, good chance to have nxtFreeRider on the 11th. but no guarantees - don't feed me to the trolls if it gets a day or two later.
I am currently connecting the UseCase logic with the widgets.
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February 08, 2014, 08:40:59 PM
 #31260

do you think its too early to make an [ANN] thread for my silver bullion gateway? Grin

*edit* im pretty sure im going to make a career out of the nxt asset exchange

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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