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Re: Ufasoft Coin - Multi-currency Open Source client for Windows
by
virtualmaster
on 04/10/2014, 15:03:33 UTC
I am watching from time to time the development of this great project.
This is definitely the best multicurrency wallet until now and I would like to propose an enhancement.
It would be helpful for the users of the wallet if it would be implemented a Namecoin ID support.
This way would be easier to remember payment addresses.
http://wiki.namecoin.info/?title=Identity
Namecoin ID support was already implemented in Bitmessage, Pidgin and NameID.

For ex. send Bitcoin(or Namecoin, Peercoin or other coin) to ID could fetch the registered Bitcoin, (or Namecoin, Peercoin or other coin) address and you have it easier.

Fecthing all data from the identity of "khal" :
$ namecoind name_show "id/khal"
{
  "email":    "khal@dot-bit.org",
  "bitcoin":  "1J3EKMfboca3SESWGrQKESsG1MA9yK6vN4",
  "namecoin": "N2pGWAh65TWpWmEFrFssRQkQubbczJSKi9"
}

Another example would be:
https://nameid.org/?name=domob
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Re: Russia and America can join, if they use Bitcoin and Namecoin!
by
virtualmaster
on 28/09/2014, 18:06:18 UTC
Updated:

Russia and America can join,
if they use Bitcoin and Namecoin!


All the wars are in vain!
Better build the blockchain!




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Topic
Board Bitcoin Discussion
Re: Bangladesh says Bitcoin users could be jailed for up to 12 years
by
virtualmaster
on 26/09/2014, 10:46:49 UTC
Just don't panic.
The central bank is not a legal authority.
http://www.mof.gov.bd/en/budget/pathprosperity/chapter1.pdf
After this report
Quote
According to our estimation, the size of the
underground economy in Bangladesh was only 7% of nominal GDP in 1973.
Since then it
increased phenomenally and in 2010 it stood at 62.75% of GDP
And if it raised in the same amount since 2010 then the illegal economy in 2014 must be around 90% in Bangladesh.

Now look the story from the other side.
That the government of Bangladesh has nothing against Bitcoin it proves only that they are considering it more legitimate that 90% of the other parts of their economy.  Smiley
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Board Wallet software
Re: [ANN] DjsWallet - ALPHA - BIP32 Based JavaScript Wallet - Multiple Currencies
by
virtualmaster
on 13/09/2014, 09:18:31 UTC
To use on bip32.org site:

1. On the bip32.org click BIP32 Key

2. Cut and paste the BIP32 Private Key(which is under the wallet details tab) to the BIP32 Extended Key Field at bip32.org

3. Select the "External account i'th keypair: m/k'/0/i" path

4. Set Account k': 0

5. Set Keypair index(i) to the address index you need: 0 for the first receive address, 1 for the second, etc. (these are the Receive addresses)

6. For the change addresses Select the "Internal account i'th keypair: m/k'/1/i" path

7. Set Account k': 0

8. Set Keypair index(i) to the address index you need

bip32.org currently only supports Bitcoin,Litecoin and Dogecoin

Thanks.
I am trying to compare for Bitcoin now. It works.
The addresses generated by your wallet are identical with those from bip32.org.(for Bitcoin)
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Re: [ANN] DjsWallet - ALPHA - BIP32 Based JavaScript Wallet - Multiple Currencies
by
virtualmaster
on 12/09/2014, 21:19:07 UTC
The seed used for generating the extended BIP32 key for each wallet is generated as so:

1. The user master key is hashed with the password using HMACsha256 twice. (byte 1 through 32 is used for the seed. Byte 0 is the Djswallet version byte and byte 33-36 is the password checksum. There is also the base58 checksum in there)
2. That data is then concatenated with the network name
3. That data is then used for the seed for the BIP32 key.

Each network will have different keys.

The Djswallet version byte will allow me to change the key format in the future and still work with current keys

Note: Don't use namecoin operations yet. The only thing that works is NEW NAME. FIRST UPDATE and UPDATE NAME are not working yet. The site is also still ugly.

Thanks for trying it out.

I think this will be the first web wallet with full Namecoin support.
Thanks for the explanation.
I only tried until now the generating keys part but I would like to reproduce the same results as by other bip32 generators.
Comparing with the results with the results from http://bip32.org/ for Bitcoin I cannot see any coverage. Reproducing the results with different tools would be important.
Maybe I used wrong parameters. However I tried many variations by putting the BIP32 private key from your wallet in the derived private key field from bip32 without any coverage by the generated addresses. Any idea why or how could be reproduced the same addresses ?
Thanks.
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Re: [ANN] DjsWallet - ALPHA - BIP32 Based JavaScript Wallet - Multiple Currencies
by
virtualmaster
on 12/09/2014, 19:46:52 UTC
Thanks for integrating Namecoin support.
I am asking if the private keys are generated with the same method by Bitcoin and Namecoin only with different network parameter or you are using different methods.
If it would be the same method I guess the private keys would be the same by Bitcoin and Namecoin as it is the case by brain wallets also when generated from the same seed with the same method.
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Topic
Board Bitcoin Discussion
Re: Thank's God Bitcoin will never become as useless as Namecoin is
by
virtualmaster
on 08/09/2014, 16:32:37 UTC
Another argument ------------->
https://bitcointalk.org/index.php?topic=760486
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Board Wallet software
Re: Gocoin - totally different bitcoin client with deterministic cold wallet
by
virtualmaster
on 31/08/2014, 18:40:14 UTC
Just a question.
The password-seeding uses a known algorithm like that from elektrum or armory or it is an own schema ?
Thanks.

The default type 3 is my own schema. It goes like this:

Code:
seed_key = SHA256(SHA256(password)) /*the master seed*/
for n:=0; n  priv_key[n] = SHA256(SHA256(seed_key))
  seed_key = append(seed_key, byte(n))
}

Type 1 and 2 are also my own schemas, though they use different algos.
Thanks for the answer.
Having compatibility with a known schema has the advantage having additional security if the wallet development abruptly disappears or some bugs appear making temporary unusable the software.
It is also more flexible if I could use for ex. elektrum and combining sometimes with gocoin just generating the seed containing my coins.
For example armory is a little bit heavy but I can generate a tree quickly from my seed with a brainwallet(for ex. brainwallet.org supports it), receive payments on the generated tree addresses and later I could import the seed in armory.
A different, new schema could have sense if presents some advantages which balances the lack of compatibility.
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Re: Gocoin - totally different bitcoin client with deterministic cold wallet
by
virtualmaster
on 31/08/2014, 16:15:28 UTC
Just a question.
The password-seeding uses a known algorithm like that from elektrum or armory or it is an own schema ?
Thanks.
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Topic
Board Wallet software
Re: Introducing Hive, a beautiful new wallet for Android
by
virtualmaster
on 31/08/2014, 11:52:53 UTC


We're pleased to announce, that Hive is now also available for Android in a beta version.

Hive Android is a standalone Bitcoin wallet. No external server or cloud service needed - the keys to your bitcoins are stored on your device.

      

Features

- Initiate transactions in various ways:
  * Scan a QR code
  * Click Bitcoin links
  * Touch-to-pay via NFC
- Support for payment protocol (BIP70) for increased security, reliability and speed in making payments
- Hive app store offers close integration with the rest of the Bitcoin ecosystem. Apps available for LocalBitcoins.com, Bitstamp, piiko and others.
- Works offline: Stores transactions for later sending or transmits them via Bluetooth
- Amounts displayed in BTC, mBTC or µBTC with exchange rate info alongside
- Add contacts based on your address book (information from your address book is solely used for the autocomplete feature - no address book data ever leaves your device)
- Notifications for incoming payments
- Encrypted backups

Technical details: Under the hood, this wallet is a fork of the "Bitcoin wallet for Android" by Andreas Schildbach. This means it's also a SPV wallet based on bitcoinj. The software is licensed as GPLv3 and the source code is available at https://github.com/hivewallet/hive-android/ .

This software is beta! That said, the beta tag applies mainly to the look and feel of the app, which will be overhauled before the first official release to better fit the overall Hive brand. We are building on top of a very mature codebase, so while bugs can never be ruled out, we feel that security-wise this app is in very good shape and will protect your coins adequately.

Frequently asked questions

Q: Is Hive Android open source?
A: Yes! The GPL-licensed code is available on GitHub.

Q: Is Hive Android available in languages other than English?
A: Not yet, but we are working on localization support. Translators will be able to help us via Transifex once that is ready. Your help in translating Hive is much appreciated!

Q: Is it really safe for novices to use, right now?
A: We think so, and we are using it on a day-to-day basis with real Bitcoin ourselves.

Q: How can I build an app for Hive?
A: Please see this forum post.

Q: Will you support Windows or Linux?
A: Not unless an exceptional developer steps up. Please contact us if you have the skills and would like to be involved!

Q: Will you support iOS?
A: Native iOS support is probably off the table due to Apple's general despotism. Try hive-js for an alternative.

Q: How do you make money?
A: Our plan is to take very small fees for transactions that happen within non-charity apps in the App Platform. At present this is not implemented.

Check it out on Google Play: https://play.google.com/store/apps/details?id=com.hivewallet.androidclient.wallet !
Hi!
Do you intend to support Namecoin also ?
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Board Project Development
Re: [ANN] FrozenBit: Multi-currency, Multisignature, client side wallet (freenode)
by
virtualmaster
on 31/08/2014, 11:43:59 UTC
Do you intend to support Namecoin also ?
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Board Wallet software
Re: [ANN] DjsWallet - ALPHA - BIP32 Based JavaScript Wallet - Multiple Currencies
by
virtualmaster
on 31/08/2014, 09:37:49 UTC
- Hello Everyone -

Looking for Alpha/Beta testers of a new BIP32 Based JavaScript Wallet.

DjsWallet

(dee-jays-wallet)

Deterministic javascript Wallet

Wallet is based on a customized version of bitcoinjs-lib which you can see here: https://github.com/p2pmining/bitcoinjs-lib

Private Keys could be reconstructed from repository library, master key and password. (Not easily as of now).

This wallet currently supports Bitcoin,Namecoin,Litecoin,Devcoin,Dogecoin,iXcoin and i0coin. (More can/will be added. Send me suggestions and why)

Only advanced browsers are supported. (IE 11+, Chrome, Firefox).

Deterministic address generation so no need to backup wallets.

WARNING: I CAN NOT RECOVER KEYS OR PASSWORDS! ALPHA! PRINT OUT KEY AND KEEP SAFE!

Use only for testing with small amounts of currency value.

You can try it out at https://djswallet.com/wallet.php  (Ignore certificate warning. Self signed cert for now)

Please Post Bugs And Suggestions

Also looking for sponsors and partners. PM me.

Coming Soon:
  • Formating
  • Message Signing
  • QRCode Support
  • Custom Transactions
  • Automatic updating of transactions and balances
  • Detailed Transaction Information
  • Instructions / FAQ / General Info
  • Market Prices

Bugs:
  • Code clean up (On going...)
  • does not clear old unconfirmed transactions
  • does not wait for 100 confirmations on mined coins before trying to spend them
  • can't add tag to change addresses
  • can't add tag to newly generated addresses
  • address table overflows sometimes

USE AT YOUR OWN RISK. I CAN NOT BE RESPONSIBLE FOR LOST OR STOLEN COINS. PLEASE DON"T USE WITH ANY LARGE MONETARY VALUE.

FAQ

Q: What is a hierarchal deterministic wallet?
A: It is a “crypto-currency “ wallet that generates all private and public keys from a single seed and is organized into a tree structure which allows the entire or partial sharing of the wallet with different systems. See the BIP0032 wiki for more detail. https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki

Q: What is the JavaScript part?
A: The JavaScript is the scripting language built into all modern browsers that the wallet is written in. All of the wallet cryptographic functions are run in the browser. Only transaction data is sent to and retrieved from our servers along with a hash of the seed data. This hash acts as a user id to prevent spamming of the system and is registered with our servers when creating the seed.

Q: How can I recover my password?
A: Sorry, no password recovery functions are available. We do not store or control any usable part of your wallet. It is up to you to remember and secure your password.

Q: How can I recover my seed key?
A: Sorry, again. Make sure you bookmark your seed key and print a copy of it too. Your seed key and password contain all the data used to generate your entire wallet.

Q: What if your site shuts down? How will I recover my wallet?
A: The underlying code is open source and can be used to generate your private keys and import them into another client. We use a modified version of bitcoinjs-lib and it can be downloaded here:https://github.com/p2pmining/bitcoinjs-lib.

Q: How does the wallet know my password is correct?
A: Key data is hashed with the password and part of that hash is embedded into the key and acts as password verification.

Q: What crypto-currencies does it the wallet support?
A: Currently Bitcoin, Namecoin, Litecoin, Devcoin, Dogecoin, Ixcoin and I0coin are supported. Additional blockchains will be added when requested by enough users. Only Bitcoin,Litecoin and Dogecoin currently have official BIP 0032 version ids. Other coins version ids have been created by us to allow BIP 0032 functionality.

Thanks for creating this interesting project and for implementing Namecoin support.
I tried with Mozilla for Bitcoin and Namecoin and superficially seems to work however I haven't done deeper tests.
Wallet creation works. Creating receive addresses and change addresses works.
Source code still not checked and transactions also not checked.

A small observation:
In the upper row it is
 DjsWallet    Home    Wallet    Discussion
When I am in the Wallet menu with generated or opened wallet(which takes a little bit time) and I change to discussions or Home menu the wallet will close which I find in contrast with the general expectations because you need to wait again  a lot if going back to wallet.
I would put instead open with a new tab by discussions without closing the wallet. Instead of home I would put Close wallet or Home(close wallet) to let know users what happens.
Thanks and waiting for further updates.
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Russia and America can join, if they use Bitcoin and Namecoin!
by
virtualmaster
on 28/08/2014, 19:49:57 UTC
Today I've heard a good slogan: "An apple a day keeps the Putin away"
http://www.foxnews.com/world/2014/07/31/apple-day-keeps-putin-away-poles-protest-russian-food-ban-with-humor-online/
so I composed another one for the peace:

Russia and America can join,
if they use Bitcoin and Namecoin!
Post
Topic
Board Bitcoin Discussion
Re: CryptoGenesis
by
virtualmaster
on 22/06/2014, 22:34:16 UTC
Love the inspiration . Nice plug for namecoin.  So far I haven't seem anyone show me how to access .bit sites in a browser (not that I've looked that hard) ... OP can u point me in the right direction.   Is there a Firefox plugin ?
They are two versions.
Look this one:
http://www.freespeechme.org/
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Board Bitcoin Discussion
Re: CryptoGenesis
by
virtualmaster
on 22/06/2014, 20:44:54 UTC
Rejoice in the great Satoshi

Rejoice in Bitcoin and Namecoin always. I will say it again: Rejoice! Satoshi is near.
Do not be anxious if the Central Bank bans your coins and the prices sometimes fall because the miners will guard your coins and you will always find them in the blockchain.
Stand firm dear brothers and don't sell your coins cheap. Prey and develop, make petitions, make ATMs and the prices will rise.
And all the altcoins should stand firm near us.



Greet everybody in the name of the great Satoshi. The brothers who are with me greet you.
Trust your money in Bitcoin and your freedom in Namecoin.
Not that I desire your coins; what I desire is that you have more coins.
And the unspent coins of the great Satoshi should come in your wallets. Amen
Post
Topic
Board Bitcoin Discussion
Re: Bolivia Bans Bitcoins!
by
virtualmaster
on 20/06/2014, 12:21:27 UTC
They were a lot of stories that a Central-bank from one country or another banned Bitcoin.
What does it mean concretely after my interpretation ?
(I am not a lawyer but I have studies in economy and trading.)
The Central-bank is nowhere a legal or executive organ. That would be the parliament or at least the finance minister.
I could also say also that the USD is illegal or banned but it doesn't have any compulsory consequence for anybody.
So if anybody is trading or accepting Bitcoin in a country where the Central-bank banned it, he doesn't make any illegal action just because the Central-bank says so.

However to avoid problems:
- Why should somebody exchange in fiat if he has his prices in BTC ? He can keep in BTC and spend in BTC then the Central-bank is not competent for that use.
- If somebody needs fiat then should show the fiat prices and those who are buying with BTC can use something like Bitpay. Then there is again no problem. I am not sure if it exists something like Bitpay for specific local currencies.

What can happen in worst case that the Bank will not make the clearing for a trading to exchange in fiat or will suspend the involved account.
This decision is made based on the interpretation that the involved person made an unlicensed financial transactioin what is not necessary a valid interpretation of the local law and could be fought in a court.
As Bitcoin is not considered money accepting Bitcoin is just like barter trading which is not illegal. It is like you would exchange your horse for a cattle.
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Board Legal
Re: Any way to take the bitcoins out of the U.S. ? Tax Free?
by
virtualmaster
on 29/04/2014, 19:14:15 UTC
If you bought your bitcoins when they were cheaper then now then your gain is not taxable as it is an unrealized profit:
http://www.investopedia.com/ask/answers/06/realizedprofitsvsunrealizedprofits.asp
Only when you sell them you need to tax the difference because it will be a realized profit.
This is valid for any asset.
You can select when and where will happen this event and create the proper environment to optimize your tax.
Post
Topic
Board Bitcoin Discussion
Irregularities by Maidsafe funding
by
virtualmaster
on 25/04/2014, 09:10:48 UTC
As I first read about the Maidsafe idea I thought it has a good concept but appeared too fantastic (like NeoBee was) so I started to read more about.
Then I observed some irregularities with possible market manipulations behind it and that brought me away from the idea.

They were pushing Mastercoin with their funding as buying their coins with mastercoins was much cheaper then with bitcoins and as effect Mastercoin prices jumped more then 100% . Those who wanted to buy Maidsafecoins had to buy first mastercoins to get it cheaper.
As I observed about a week before the funding was announced 1MSC was about 0.05BTC then 0.1 and then jumped for short time to almost 0.2 BTC.

Quote
The rules said: 17000 MaidSafe for 1BTC and 3400 MaidSafe for 1MSC; i.e. .2BTC/MSC. This is why the MSC price rose and nearly reached .2 (as anyone would expect) in the days preceding the sale.


Making presale only in MSC before saling in BTC pushed even stronger MSC and stopped the downward trend of it.
As I see now Mastercoin pushing with Maidsafecoin funding was confirmed by other observers also:
http://www.cryptocoinsnews.com/news/maidsafe-embroiled-safecoin-presale-mastercoin-pump-dump/2014/04/22


But the Maidsafecoin funding could have lost this way at least 50% of it's value as the MSC price was falling again after the presale.
That came good for those who tried to get rid of their MSC's but suffered the funding.
This unclean funding also gives hint that behind the creators of Maidsafecoin are the biggest Mastercoin owners and such manipulations in favor of Mastercoin and to the detriment of Maidsafecoin cannot be excluded in the future also.

Now I see another topic that stolen coins were moved to Maidsafe Coin funding:
https://bitcointalk.org/index.php?topic=582731.0
http://www.reddit.com/r/Bitcoin/comments/23uw07/mtgox_stolen_bitcoins_moving_into_maidsafes_ipo/

As I didn't participated to this coin funding I am just curious what other irregularities (or scams) will be revealed next in connection with this coin.

Post
Topic
Board Bitcoin Discussion
Re: A critical bug was discovered in lib ssl, Bitcoin affected
by
virtualmaster
on 08/04/2014, 18:24:28 UTC
All my coins are controlled by offline Armory keys that only reside on encrypted and offline systems.  Is there any reason for me to bother moving coins to new addresses?
If your Armory was never online then I think you should be secure. But if you have an OS which is affected and it was ever or it will be connected online then your private keys could be compromised.(the past and the future ones)
More:
http://arstechnica.com/security/2014/04/critical-crypto-bug-in-openssl-opens-two-thirds-of-the-web-to-eavesdropping/
Tor services are also affected.
https://blog.torproject.org/blog/openssl-bug-cve-2014-0160
Post
Topic
Board Bitcoin Discussion
Re: A critical bug was discovered in lib ssl, Bitcoin affected
by
virtualmaster
on 08/04/2014, 17:37:54 UTC
Quote
Some operating system distributions that have shipped with potentially vulnerable OpenSSL version:

    Debian Wheezy (stable), OpenSSL 1.0.1e-2+deb7u4
    Ubuntu 12.04.4 LTS, OpenSSL 1.0.1-4ubuntu5.11
    CentOS 6.5, OpenSSL 1.0.1e-15
    Fedora 18, OpenSSL 1.0.1e-4
    OpenBSD 5.3 (OpenSSL 1.0.1c 10 May 2012) and 5.4 (OpenSSL 1.0.1c 10 May 2012)
    FreeBSD 10.0 - OpenSSL 1.0.1e 11 Feb 2013
    NetBSD 5.0.2 (OpenSSL 1.0.1e)
    OpenSUSE 12.2 (OpenSSL 1.0.1c)

Operating system distribution with versions that are not vulnerable:

    Debian Squeeze (oldstable), OpenSSL 0.9.8o-4squeeze14
    SUSE Linux Enterprise Server
    FreeBSD 8.4 - OpenSSL 0.9.8y 5 Feb 2013
    FreeBSD 9.2 - OpenSSL 0.9.8y 5 Feb 2013
    FreeBSD Ports - OpenSSL 1.0.1g (At 7 Apr 21:46:40 2014 UTC)
Quote
How can OpenSSL be fixed?

Even though the actual code fix may appear trivial, OpenSSL team is the expert in fixing it properly so latest fixed version 1.0.1g or newer should be used. If this is not possible software developers can recompile OpenSSL with the handshake removed from the code by compile time option -DOPENSSL_NO_HEARTBEATS
Quote
Can I detect if someone has exploited this against me?

Exploitation of this bug leaves no traces of anything abnormal happening to the logs.
http://heartbleed.com/