Improoving Namecoin fungibility and privacy

biolizard89
Posts: 2001
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os: linux

Re: Improoving Namecoin fungibility and privacy

Post by biolizard89 »

virtual_master wrote::( Oh oh. It looks bad for Bitcoins fungibility.
http://www.coindesk.com/matrixvision-wa ... aner-cash/
http://matrixvision.eu/cleancoin/
I thought they are only in the USA but it is already in Europe.
The last bastion of privacy is Namecoin.
This would just as easily be applied to Namecoin as Bitcoin. That said, I think Zerocoin and CoinJoin would prevent this system from being effective.
Jeremy Rand, Lead Namecoin Application Engineer
NameID: id/jeremy
DyName: Dynamic DNS update client for .bit domains.

Donations: BTC 1EcUWRa9H6ZuWPkF3BDj6k4k1vCgv41ab8 ; NMC NFqbaS7ReiQ9MBmsowwcDSmp4iDznjmEh5

virtual_master
Posts: 541
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Re: Improoving Namecoin fungibility and privacy

Post by virtual_master »

biolizard89 wrote:
virtual_master wrote::( Oh oh. It looks bad for Bitcoins fungibility.
http://www.coindesk.com/matrixvision-wa ... aner-cash/
http://matrixvision.eu/cleancoin/
I thought they are only in the USA but it is already in Europe.
The last bastion of privacy is Namecoin.
This would just as easily be applied to Namecoin as Bitcoin. That said, I think Zerocoin and CoinJoin would prevent this system from being effective.
Thanks. I thrust your evaluation and if it is positive it is a good sign for me.

Another privacy enhancing technique proposal 'Merge Avoidance' compared with CoinJoin:
https://medium.com/p/7f95a386692f
http://namecoinia.org/
Calendars for free to print: 2014 Calendar in JPG | 2014 Calendar in PDF Protect the Environment with Namecoin: 2014 Calendar in JPG | 2014 Calendar in PDF
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virtual_master
Posts: 541
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Re: Improoving Namecoin fungibility and privacy

Post by virtual_master »

Updating with new privacy technologies for cryptocurrencies:
SharedCoin:
based on CoinJoin
http://sharedcoin.com/
How long do shared transactions take?
Between 30 seconds to 5 minutes depending on the number of iterations.
Is there a maximum transaction size?
The maximum transaction size is 50 BTC.
http://namecoinia.org/
Calendars for free to print: 2014 Calendar in JPG | 2014 Calendar in PDF Protect the Environment with Namecoin: 2014 Calendar in JPG | 2014 Calendar in PDF
BTC: 15KXVQv7UGtUoTe5VNWXT1bMz46MXuePba | NMC: NABFA31b3x7CvhKMxcipUqA3TnKsNfCC7S

biolizard89
Posts: 2001
Joined: Tue Jun 05, 2012 6:25 am
os: linux

Re: Improoving Namecoin fungibility and privacy

Post by biolizard89 »

2 new developments which might possibly be useful for us in the future:

Zerocash: https://www.youtube.com/watch?v=FXU65XsLiFk
Darkcoin: http://darkcoin.io/
Jeremy Rand, Lead Namecoin Application Engineer
NameID: id/jeremy
DyName: Dynamic DNS update client for .bit domains.

Donations: BTC 1EcUWRa9H6ZuWPkF3BDj6k4k1vCgv41ab8 ; NMC NFqbaS7ReiQ9MBmsowwcDSmp4iDznjmEh5

biolizard89
Posts: 2001
Joined: Tue Jun 05, 2012 6:25 am
os: linux

Re: Improoving Namecoin fungibility and privacy

Post by biolizard89 »

Anyone seen the AppeCoin proposal?

https://bitslog.wordpress.com/2014/04/2 ... ncy-draft/

It attempts to provide better anonymity than CoinJoin, particularly with respect to correlating payment amounts, while using much simpler crypto than Zerocash (and without needing a trusted third party to initialize the system).

As I've been saying for quite a while, I think that until the dust settles, we shouldn't commit all of our users to a specific anonymization method. If sidechains end up happening, then namecoins could be moved to a Zerocash or AppeCoin sidechain (depending on which one the user trusts more), and only transferred back to the Namecoin chain for purposes of paying for names. While timing leaks are possible with a sidechain transfer, that's already the case for name transactions, and (I think) is more robustly fixable with better client behavior.
Jeremy Rand, Lead Namecoin Application Engineer
NameID: id/jeremy
DyName: Dynamic DNS update client for .bit domains.

Donations: BTC 1EcUWRa9H6ZuWPkF3BDj6k4k1vCgv41ab8 ; NMC NFqbaS7ReiQ9MBmsowwcDSmp4iDznjmEh5

domob
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Re: Improoving Namecoin fungibility and privacy

Post by domob »

biolizard89 wrote:As I've been saying for quite a while, I think that until the dust settles, we shouldn't commit all of our users to a specific anonymization method. If sidechains end up happening, then namecoins could be moved to a Zerocash or AppeCoin sidechain (depending on which one the user trusts more), and only transferred back to the Namecoin chain for purposes of paying for names. While timing leaks are possible with a sidechain transfer, that's already the case for name transactions, and (I think) is more robustly fixable with better client behavior.
This.
BTC: 1domobKsPZ5cWk2kXssD8p8ES1qffGUCm | NMC: NCdomobcmcmVdxC5yxMitojQ4tvAtv99pY
BM-GtQnWM3vcdorfqpKXsmfHQ4rVYPG5pKS
Use your Namecoin identity as OpenID: https://nameid.org/

phelix
Posts: 1634
Joined: Thu Aug 18, 2011 6:59 am

Re: Improoving Namecoin fungibility and privacy

Post by phelix »

biolizard89 wrote:As I've been saying for quite a while, I think that until the dust settles, we shouldn't commit all of our users to a specific anonymization method.
+1


Joinmarket is also an interesting project: https://bitcointalk.org/index.php?topic=919116
nx.bit - some namecoin stats
nf.bit - shortcut to this forum

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