r/Bitcoin - Fatal flaw in Namecoin found - doesn't enforce
r/Bitcoin - Fatal flaw in Namecoin found - doesn't enforce
Developers attempt to resurrect Namecoin after flaw discovered
Namecoin. All about cryptocurrency - BitcoinWiki
Document protocol differences between Bitcoin and Namecoin
User "libcoin" finds critical vulnerability in the Namecoin code allowing the attacker to renew names registered by somebody else (d/bitcoin and d/wav were overtaken as examples); the entire Namecoin dev-team organizes within hours to work on finding a solution!
#namecoin-meeting notes, 2016 07 03 # Present: Jeremy Jonas Samurai pigeons midnightmagic Decentralized Web Summit Jeremy attended DWS. Blog post summary is in namecoin.org PR. https://github.com/namecoin/namecoin.org/pull/64 Note the new News layout / links, the Earlier News link, and the new post from June 20. Jonas ACKs. Namecoin Core Merged Mining Jorge Timon suggested replacing the MM chain ID with the BIP 122 chain ID. https://github.com/namecoin/namecoin-core/pull/75#issuecomment-228597157 OS X Gitian Builds Jonas posted an OS X Gitian binary of Brandon's name tab PR Jonas will look into submitting a PR. Look into deterministically generating SDK input. PGP keys Jonas reminds everyone that we need to get our PGP keys into GitHub for Gitian. AAA hardfork Samurai asks if any problems expected short-term. Jeremy is pretty sure we're fine until Bitcoin schedules bit 0x100 for VersionBits. SegWit is bit 0x2. SPV Jeremy sent PR to libdohj. Currently undergoing review. https://github.com/dogecoin/libdohj/pull/18 Specs Jeremy posted draft Dehydrated Cert spec. https://github.com/ifa-wg/proposals/pull/24 Review would be appreciated. ncdns Jeremy noticed a bug in ncdns's JSON-RPC library that breaks connecting to the SPV client. Jeremy fixed it, but wonders why we're even using that library. It appears to be a very old library from Conformal that was abandoned over a year ago. Bring this up with Hugo (he didn't attend this meeting). Public Relations A bunch of website PR's have been ACKed by Jonas and merged by Jeremy. https://github.com/namecoin/namecoin.org/pull/59 https://github.com/namecoin/namecoin.org/pull/60 https://github.com/namecoin/namecoin.org/pull/62 https://github.com/namecoin/namecoin.org/pull/65 https://github.com/namecoin/namecoin.org/pull/66 https://github.com/namecoin/namecoin.org/pull/67 https://github.com/namecoin/namecoin.info-dotbit/pull/10 Jeremy added new "Donations" page to website. https://namecoin.org/donate/ Jeremy added new FAQ to website. https://namecoin.org/docs/faq/ Funding libcoin-related bounties have been refunded by BountySource. BountySource balance: $5/month from 1 recurring supporter Total funds available: $299 USD NMDF incoming funds: 98.4 mBTC received since 2016 05 15 0 NMC received since 2016 05 15
FreeSpeechMe-SPECIFIC IMPROVEMENTS WE PLAN TO DO: Hide nmcontrol/namecoind windows on Windows GNU/Linux users don't see the terminal windows for backend software; Windows users shouldn't be bothered by them either. Don't try to visit .bit websites when blockchain isn't downloaded Right now, visiting a .bit website with an incomplete blockchain will use an older version of that name's data. Usually this results in a failure to load the page with no good explanation of what's wrong, but in certain rare cases it could also hypothetically result in security issues such as hijacking. A better version of FreeSpeechMe should refuse to use incomplete blockchains. Facilitate non-Firefox usage FreeSpeechMe uses a networking method, HTTP, which is specific to website traffic. Replacing it with a different method, SOCKS, would make it much more flexible, so you could use Dot-Bit for non-website Internet applications such as SSH. It should also be possible to route other web browsers such as Chromium through FreeSpeechMe. FreeSpeechMe should support being installed as a standalone application for users who don't use Firefox (although obviously Firefox will remain the main method of installation). Improvements for anonymous browsing Right now FreeSpeechMe supports routing its traffic through anonymization proxies such as Tor and I2P (if they are installed), but it is not compatible with TorBrowser, so while attackers generally can't see your location or IP address, they can deduce that different activities you do online may have come from the same person. FreeSpeechMe should be improved to function in TorBrowser, which would prevent linkage of different online activities. Improvements for anonymous hosting FreeSpeechMe supports Tor and I2P hidden services (if the user has Tor or I2P installed), but does not support Freenet, OnionCat, GarliCat, or other anonymous hosting networks. This should be improved. Support for next-gen TLS specification FreeSpeechMe is using a method of specifying certificates to prevent hijacking which is deprecated in the Dot-Bit specification. While this method remains very secure, the newer specification has more features, and FreeSpeechMe should implement it. HTTPS enforcement Websites which claim to support HTTPS in their domain record should automatically be loaded in HTTPS, even if the user accidentally forgets the "s", to prevent hijacking in such cases. (Note for geeks: this is like the HSTS specification, but works even for sites you haven't visited before.) Intelligent Redirecting Websites that want to support Dot-Bit should be able to do so without changing their server configuration, and instead have FreeSpeechMe make the server think the preexisting domain is being requested. The user would still see the Dot-Bit URL in Firefox, and unlike iframe-based methods, the URL displayed in Firefox would change accordingly as the user clicks links.. Fix HTTP protocol bugs Unencrypted HTTP Dot-Bit websites occasionally have odd behavior in FreeSpeechMe (sometimes manifesting as links not working properly); this is most frequently seen in WordPress websites. While we strongly encourage the use of HTTPS (which isn't subject to these bugs), we still want to fix the bugs with HTTP websites. Round-Robin Load Balancing Some large websites use multiple server IP addresses for a single domain. FreeSpeechMe should be able to randomly choose one. OTHER NAMECOIN SOFTWARE IMPROVEMENTS Some of this is possibly out of the scope of this one Indiegogo campaign, depending on funds raised. But these are things we're very interested in helping implement: Rebase on the latest Bitcoin code Namecoin is based on an outdated version of Bitcoin (0.3.x). We should rebase on a current release. We inquired with a well-qualified and well-respected contractor (who developed Namecoin-Qt) about how much this rebase would cost; the estimate was around $17,000-$35,000 US. Spending that much on one project would be out of the realm of this first campaign. However, it may be possible to reduce this cost significantly by rebasing on a codebase other than Bitcoin, such as libcoin. Improve scalability Namecoin currently requires having the entire blockchain for good security. While the 1.6GB blockchain isn't a large concern right now, future scalability requires that clients be able to securely resolve names without possessing the blockchain. There is a proposal for this called SPV+UTXO. Automatic renewal of names Losing your names because you forgot to renew them is a problem. Names should be able to be renewed automatically. Preferably without decrypting the wallet each time the name is renewed, and maybe without even needing your client to be open when it renews. Any solution must be trust-free. Cold storage of Namecoin name keys To update a Namecoin name, the keys must be decrypted on a computer with Internet access; this could be a security risk if malware is installed on that computer. To fix this, cold storage should be used, as is possible with Bitcoin. This is in two parts: (1) port the Armory client to Namecoin (this allows transactions to be signed offline), and (2) allow a cold-storage name to be used as a revocation key for a hot-wallet name (this is called the "import" field). Optimize Speed Dot-Bit is already much faster than other top-level domains for both name lookup and name propagation. However, it can be made even faster. We estimate that pre-cached name lookup time can be decreased by 2- to 5-fold in some cases, uncached name lookup time can be decreased significantly, name update propagation can be reduced from 40 minutes to under 1 minute, and blockchain sync time can be reduced significantly. Android support Namecoin software currently does not support Android; this situation should be improved. Better blockchain anonymity Like Bitcoin, Namecoin can keep the location and IP address of name owners anonymous (if used with Tor), but the various activities of name owners can be linked by an attacker. This should be improved, e.g. by implementing Zerocoin. Better blockchain privacy Some name owners may wish their records to not be publicly accessible; encryption would improve this situation. Decentralized website single sign-on Namecoin can be used to log into websites in a secure way without needing a password (protecting people from database leaks or cracked passwords without trusting a third party such as "all your data are belong to us" systems like Facebook); this is implemented as the NameID library by domob. Unfortunately, this library is not easy for non-programmers to integrate with existing websites. Plugins should be created for major website backends such as Drupal, phpBB, WordPress, and SMF, to allow trust-free NameID sign-on to be as easy as checking a box. Automated builds Namecoin software should support automated builds and testing so that our developers and testers can work more efficiently. The builds should also be deterministic (as Bitcoin and Tor are doing) to improve security. Offline signing of static websites Verifying signatures of static websites against the blockchain would prevent hijacking even if a web server is completely compromised. SSH client integration Log into your servers remotely without trusting your network or manually verifying fingerprints, using the same anti-hijacking features that FreeSpeechMe first implemented.
Matching Donations: Register/Manage Names with Libcoin Rebase / Lite Client
Hi, As you may know, the Namecoin dev team has been working to rebase namecoind and Namecoin-Qt on a newer codebase, specifically libcoin (a refactorization of Bitcoin Core by Michael Gronager of the Kraken exchange). This is because namecoind and Namecoin-Qt are based on the Bitcoin 0.3.x codebase, which is not really maintainable. libcoin has a lot of nice benefits: most notably it makes it easier to produce trust-free lite clients (we've already done some experiments getting the stored blockchain reduced in size significantly, see http://blog.namecoin.org/post/91019719220/libcoin-lite-client-storage-mode ). Right now libcoin does not support the name_new, name_firstupdate, and name_update RPC commands, which are a prerequisite to the rebase. (It already supports name_show, name_filter, and name_scan.) To help speed up development, the FreeSpeechMe fund will be matching donations for this feature 1:1 up to $50 USD (so up to $100 bounty total). The bounties are handled via BountySource; this means that no one can redeem the bounty until the GitHub issue is closed. BountySource's escrow services are built in to protect against fraud. Both USD and BTC are accepted by BountySource. So, if you'd like to support Namecoin development and have a few dollars to spare, please consider posting a bounty. You can do so at the link below. https://www.bountysource.com/issues/3161846-name-management Cheers! -Jeremy
Quite a few libraries have been written for Bitcoin, which rely on arbitrary constant parameters to make it easier for developers to port tools and projects over Namecoin's parameters ought to be documented. Since this is essentially ano... 他说“Namecoin的libcoin安装启用可以监视Namecoin block chain，检查规则的不一致性，所以我确信之前它从来没被利用过。 可以用挖bitcoin的方式，同时挖namecoin。 这个项目由bitdns讨论并提出，主要是对目前DNS的缺陷不满。 这个开源软件首次发布的日期是2011年4月18日。 libcoin is chain agnostic, all chain (bitcoin, testnet, namecoin, litecoin,) specific settings are maintained from a single class (Chain) and hence experiments with chain settings, mining, security and digital currencies for research and educational purposes are easily accessible. Namecoin (Symbol: ℕ or NMC) is a cryptocurrency that is mined with bitcoin software as bonus. It is based on the code of bitcoin and uses the same proof-of-work algorithm. Like bitcoin, it is limited to 21 million coins. Unlike bitcoin, Namecoin can store data within its own blockchain transaction database. A fatal flaw has been discovered in the Namecoin protocol by the Kraken exchange team, but a fix is on the way. Bitcoin. Market Wrap: Traders Buy the Dip and Bitcoin Holds at $9,200.
Easiest way to mine Bitcoin, Litecoin, PPCoin, Namecoin, Feathercoin, and Dogecoin
What is Namecoin ? Bitcoin's First Altcoin ! - Duration: 1:10. Namecoin 5,954 views. 1:10. Warren Buffett - The World's Greatest Money Maker - Duration: 59:03. TradingCoachUK Recommended for you. This video is unavailable. Watch Queue Queue. Watch Queue Queue Queue bitcoin mining, bitcoin, mining, btc, free bitcoin, bitcoin miner, earn free bitcoin, ethereum, crypto, blockchain, cryptocurrency, bitcoin cash, free, free bitcoin mining, how to mine bitcoin ... How To Convert Bitcoin Litecoin Namecoin Novacoin Terracoin Peercoin Feathercoin Primecoin To USD - Duration: 4:18. LuisTutorialTV 6,596 views. 4:18. Culinary 411 ... Altcoins (or alts, as they're also called) are alternatives to bitcoin and started appearing as of 2011, when Namecoin tried to decentralize the domain name system so as to make the Internet more ...