Re: [Bitcoin-development] Cartographer
As an outside observer, I have to say I also found Peter's sardonic message tone inappropriate for furthering the discussion. -- Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
Re: [Bitcoin-development] Deanonymisation of clients in Bitcoin P2P network paper
That's what I was trying to say... The researchers are deanonymizing transactions from non-Tor connected hosts. So why are we talking about Tor limitations in response to this? Shouldn't we be discussing how to address the issues in Bitcoin proper? M On 11/27/2014 9:30 PM, Gregory Maxwell wrote: On Thu, Nov 27, 2014 at 5:44 PM, wrote: I might be mistaken, but it seems to me this paper discusses unintended ways of obtaining the IP addresses of clients involved in transactions on the core Bitcoin network. You're mistaken. :) If a node is used exclusively via tor it effectively doesn't have a IP address. (short of bugs of a class that aren't discussed here) The paper is about fingerprinting approaches that probabilistically connect transactions to hosts that you can already identify their IPs. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
Re: [Bitcoin-development] Deanonymisation of clients in Bitcoin P2P network paper
I might be mistaken, but it seems to me this paper discusses unintended ways of obtaining the IP addresses of clients involved in transactions on the core Bitcoin network. Tor was mentioned only insofar as it might be one's first thought of how to mitigate this risk, yet Bitcoin over Tor has its own problems that prevent this from being effective. But the primary "issues" mentioned in the paper are regarding a Bitcoin node in default operation, no? "In their new study, researchers at the Laboratory of Algorithmics, Cryptology and Security of the University of Luxembourg have shown that Bitcoin does not protect user's IP address and that it can be linked to the user's transactions in real-time." "The basic idea behind these findings is that Bitcoin entry nodes, to which the user's computer connects in order to make a transaction, form a unique identifier for the duration of user's session. This unique pattern can be linked to a user's IP address. Moreover, transactions made during one session, even those made via unrelated pseudonyms, can be linked together. With this method, hackers can reveal up to 60 percent of the IP addresses behind the transactions made over the Bitcoin network." "'This Bitcoin network analysis combined with previous research on transaction flows shows that the level of anonymity in the Bitcoin network is quite low,' explains Dr. Alex Biryukov." M -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
Re: [Bitcoin-development] Proposals for improving Bitcoin mining decentralization
I have been surprised by the lack of discussion of this topic here! On 6/17/2014 10:57 AM, Raúl Martínez wrote: We all know the recent news, Ghash pool controlling 51% of the hashrate. While some consider it a threat others think that is not harmful. The thing is that we have to do something to stop this from happening again. -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing & Easy Data Exploration http://p.sf.net/sfu/hpccsystems___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
