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Merkle tree (Meckerschau) algorithm resolves __ block chain

-peer Network In Peer-to-peer networks, Merkle tree is used to ensure that blocks of data received from other nodes are not corrupted and not replaced, or even that other nodes do not deceive or publish false chunks. We are familiar with the BT download is the use of Peer-to-peer technology to allow data transmission between the client, one can speed up the download speed, and secondly reduce the burden of downloading the server. BT is BitTorrent, is a central index of Peer-to-peer file Analysis

Brief description of BitTorrent protocol principles

It was ant when I got in touch with my computer and used the software to download it. Then we used the BT tool. Now there are countless software downloads, however, we still need to know about the BitTorrent protocol. This is also the specification for BT seeds and BT downloads. For normal HTTP/FTP downloads, the TCP/IP protocol is used, the BitTorrent protocol is a P2P File Transfer Protocol Based on the TCP/IP protocol, which is at the application layer of the TCP/IP structure. BitTorrent also

Discussion on BitTorrent protocol Working Mechanism

I believe that those who have experience in Online downloads will certainly not be unaware of the BitTorrent protocol. This protocol supports what we often call "BT" downloads. Here are some basic information about this protocol. It also includes its specific working principles, hoping to let everyone know about this part. Common HTTP/FTP downloads use the TCP/IP protocol. BitTorrent is a P2P File Transfer Protocol Based on the TCP/IP protocol, it is in the application layer of the TCP/IP struct

Ubuntu15.04FinalBeta released, Linux operating system

Ubuntu15.04FinalBeta inherits the excellent tradition of the Linux system. The development team added new features and fixed many errors in the latest version. In this beta release, not only images of UbuntuDesktop, Server, Cloud and Core products are available, but also images of Kubuntu, Lubuntu, effectugnome, UbuntuKylin, and Ubuntu. For more information, see release Ubuntu 15.04 Final Beta inherits the excellent tradition of the Linux system. The development team added new features and fixed

Compilation error _ sync_bool_compare_and_swap_4

For fast transmission of large files, you need to investigate bit torrent and download opentracker.The following error occurs during libowfat Compilation:T. o: In function 'main ':T. c :(. text + 0x76): undefined reference to '_ sync_bool_compare_and_swap_4'T. c :(. text + 0xa2): undefined reference to '_ sync_bool_compare_and_swap_4'Collect2: ld returned 1 exit statusMake: *** [t] Error 1This function cannot be defined. It is a function used in t. c.

Merkle Tree Learning

   1. Digital signature The original Merkle tree was designed to efficiently handle Lamport one-time signatures. Each Lamport key can only be used to sign a message, but a combination with Merkle tree can be signed with multiple Merkle. This method has become an efficient digital signature framework, namely Merkle Signature Scheme. 2. Peer Network The Merkle tree is used to ensure that blocks of data received from other nodes are not corrupted and not replaced, and even checking that other node

Five Best BT clients in Ubuntu

BestTorrentclientsforUbuntuLinux is looking for the best BT client in Ubuntu? In fact, there are many BT clients in the Linux desktop platform, but which of them are the best Ubuntu clients? I will list the five best BT clients in Linux, all of which are lightweight, powerful, and have impressive user interfaces. Naturally, easy to install and use is also a feature. Best Torrent clients for Ubuntu Linux SearchingBest BT client in Ubuntu? In fact, the

(reproduced) rtorrent command-line instructions for use

Transferred from: http://blog.chinaunix.net/uid-22457844-id-2973262.htmlReference: http://forum.ubuntu.org.cn/viewtopic.php?t=165069How to install the system, I do not explain, because the system installed on the Internet a large pile, but also to have a picture of the truth, I am more lazy, haha.Now let's start by explaining how to install the process:The simplest I recommend, binary installation: sudo apt-get install rtorrent, everything OK.A. rtorrent.rc directory file is generated in the use

Introduction to Bt and calculation of the hash value (feature value) of BT seeds

The hansh value of BT seeds is calculated. Recently, I am suddenly interested in BT seeds (do not ask why) 1. BT seeds (concept) BT is a distributed file distribution protocol. Each file downloader continuously uploads downloaded data to other Downloaders while downloading. This ensures that the faster the download, the faster the upload, to implement notification download 2. How does BT download and upload files simultaneously? Starting from the file itself, the BT file contains two parts of

Install BT client transmission on Linux Centos system

-limit-per-torrent":60,Maximum number of single seed connections"Peer-port":51413,"Peer-port-random-high":65535,"Peer-port-random-low":49152,"Peer-port-random-on-start":False"Peer-socket-tos":"Default","Pex-enabled":True"Port-forwarding-enabled":True"Preallocation":1,"Prefetch-enabled":1,"Ratio-limit":2,"Ratio-limit-enabled":False"Rename-partial-files":True"Rpc-authentication-required":True"Rpc-bind-address":"0.0.0.0","Rpc-enabled":True"Rpc-password":

Compile Libtorrent Small note

message Google gets the patch http://libtorrent.rakshasa.no/ Attachment/ticket/1266/libtorrent-gcc43-v2.patch Follow the patch one by one to modify the files mentioned in the compilation is OK with Linux really rely on Google Ah The next SimpleClient example, but also compiled, but less code, according to the error one by one to get rid of, after compiling through the can run. The following are some of the information that is output at run time, ./simple_client http://imgs.kaicn.com/bt/

10 tips and tricks for private BitTorrent sites

Http://torrentfreak.com/10-tips-tricks-for-private-bittorrent-sites-080323/ On private torrent sites, everything revolves around ratios. A ratio (or 1.0) means that you 've downloaded exactly the same amount of data as you 've uploaded. thus a 0.80 ratio indicates that you 've uploaded less than you 've downloaded, Which is hurtful to the health of the torrent. inversely, a 3.0 ratio means you 've uploaded

P2P vs scene: explained

Seems that appear in the torrent world do not understandMemorandum or methodology behind scene and P2P, so perhaps it's time that we explain a little bit about the history of Peer to Peer, open torrent sites, the "P2P" groups, and "The scene ". there is alot of historical context, propaganda, truth, and hidden despiseThat comes from this mystery, And we'll dig a little deeper now.For years, peer to peer com

Three hundred free software lists

Office OpenOffice-office suitePC Suite 602-office suiteAbiword-Text EditorAtlanta Nova-Text EditorMicrosoft PowerPoint Viewer-Power Point files ViewerAdobe Reader-PDF ReaderFoxit PDF Reader-PDF ReaderPdfcreator-Create PDF documents entsDoc convertor-document ConvertorConvert-unit ConvertorConverber-unit ConvertorSunbird-calendar/organizerEssential tialpim free-calendar/organizerPhraseexpress-speed up your writingAtnotes-create notes on the desktop Extract 7-zip-compression programIzarc-compres

Using Python to convert BT seeds and magnetic links

convert bt seed file to magnetic link The BT seed file is not easy to store relative to the magnetic chain, and storing BT files on the website can easily cause copyright disputes, while the magnetic chain is relatively less risky. and many forums or websites restrict the type of file upload, share a BT seed also need to change the file suffix or compression once, others need to download time to download the operation of the seed. So it is good to convert BT seeds to a smaller footprint and to

Could you please modify a phpcurl to simulate the post request content and download the file?

Please help modify the phpcurl to simulate the post request content and download the file. the following code uses curl to simulate the post request link and then directly displays the file content, how to modify it to download the request directly without displaying the content. what about torrent files? Function curl_post ($ header, $ data, $ url) {$ ch = curl_init (); $ res = curl_setopt ($ ch, CURLOPT_URL, $ url); curl_setopt ($ ch, optional, FA

Python crawler programming framework Scrapy Getting Started Tutorial

followed up, and which ones do not need to be followed up. CrawlSpider provides us with a useful abstraction-Rule, making this type of crawling tasks easy. You only need to tell scrapy in the rule and what needs to be followed up.Recall the spider we crawled on the mininova website. class MininovaSpider(CrawlSpider): name = 'mininova' allowed_domains = ['mininova.org'] start_urls = ['http://www.mininova.org/yesterday'] rules = [Rule(LinkExtractor(allow=['/tor/\d+']), 'parse_torrent')] d

Blockchain-merkle Tree Learning

Merkle tree was designed to efficiently handle Lamport one-time signatures. Each Lamport key can only be used to sign a message, but a combination with Merkle tree can be signed with multiple Merkle. This method has become an efficient digital signature framework, namely Merkle Signature Scheme. 2. Peer Network The Merkle tree is used to ensure that blocks of data received from other nodes are not corrupted and not replaced, and even checking that other nodes do not spoof or publish false block

Merkle Tree Learning for Blockchain

that blocks of data received from other nodes are not corrupted and not replaced, and even checking that other nodes do not spoof or publish false blocks. We are familiar with the BT download is the use of peer technology to enable data transmission between the client, one can speed up the download speed, and reduce the burden of download server. BT is BitTorrent, a central index-to-peer file Analysis Communication protocol [7]. To get into the download you must obtain an index file with an ext

Python crawler programming framework Scrapy getting started tutorial, pythonscrapy

construct a Request object, you only need two parameters: URL and callback. 4.2 CrawlSpiderGenerally, we need to decide in the spider: Which web pages need to be followed up, and which ones do not need to be followed up. CrawlSpider provides us with a useful abstraction-Rule, making this type of crawling tasks easy. You only need to tell scrapy in the rule and what needs to be followed up.Recall the spider we crawled on the mininova website. class MininovaSpider(CrawlSpider): name = 'mininova'

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