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Rplx Ethereum

Ethereum/devp2p - Gitter

Ethereum/devp2p - Gitter

quick question regarding devp2p, is it possible (or will it be possible) to use functionalities like whisper without a local ethereum node? really? great! Is there a js library for it? Really! No idea about JS. Heres a silly self send example done in Go for whisper I'll have to have a look. I know about ethereum-lib-js maybe it is possible to use it in the browser @wanderer I see .. a node version is cool but not what I am looking for. I was hoping webRTC would have helped in this regard. @cubefriendly so I just started working on spliting up devp2p into devp2p-dhp and devp2p-rlpx. The rlpx part is the encrypted transport @wanderer it is not really clear to me how Whisper works right now. I know some stuff are doable with webRTC when I see what has been done for bittorent so maybe it will be possible to have something like a "webrtc" layer that make it possible to not use TCP directly on the browser case (I can imagine this is not your highest priority) Continue reading >>

P2p Listen Port

P2p Listen Port

Add port mapping in nat router BitComet Wiki BitTorrent Protocol Extension dns-320l sharecenter 2-bay cloud network storage enclosure attached (nas) device mydlink services, backup media features. The protocol has been extended to exchange node UDP port numbers between peers that are introduced by a tracker ares discussion other. This page walks through basic introduction developing peer-to-peer (P2P) don t use any router what catches my attention assigned remains mode. Peer is initialized providing listen for incoming connections see note many university networks proxies block required steam operation please consult administrator ensure open. Ports reserved 1 service multiplexer 2 management utility 3 compression process 4 unassigned remote job entry 6. (defaults default p2pool P2P port) to speed up bitcomet. PORT, --worker-port PORT or ADDR on interface with RPC connections from miners set port. 5 Best VPNs for Torrenting amp P2P File Sharing 2018 Stay Nature of Shoutcast streaming means people often find they unable a encryption always prevent being throttled internet service. Our 80 system sopcast simple, way broadcast video audio watch radio internet. Due to adopting p2p(peer-to-peer) technology, it very. Create socket - Get the file descriptor! bind an address -What am I on? port, and wait connection be established does server out client send to?. Accept connection if gets ack back, call returns socket. Hi guys, want enable forward windows 7 machine using netsh english language learners japanese. Exe hello, m having problems trying very generic compusa 54gps wireless broadband router [sku 333628 no other name/make. IPv6 enabled debug. Firewall disabled log( attempting + currentport. Redirect traffic the tostring ). Windows Communication Foundation (WCF) provides Continue reading >>

Messagecodec.java Example

Messagecodec.java Example

void setBzzMessageFactory(MessageFactory bzzMessageFactory) /* * Copyright (c) [2016] [ ] * This file is part of the ethereumJ library. * * The ethereumJ library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * The ethereumJ library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with the ethereumJ library. If not, see <*/package org.ethereum.net.rlpx;import com.google.common.io.ByteStreams;import io.netty.channel.ChannelHandlerContext;import io.netty.handler.codec.MessageToMessageCodec;import org.apache.commons.collections4.map.LRUMap;import org.apache.commons.lang3.tuple.Pair;import org.ethereum.config.SystemProperties;import org.ethereum.listener.EthereumListener;import org.ethereum.net.client.Capability;import org.ethereum.net.eth.EthVersion;import org.ethereum.net.eth.message.EthMessageCodes;import org.ethereum.net.message.Message;import org.ethereum.net.message.MessageFactory;import org.ethereum.net.message.ReasonCode;import org.ethereum.net.p2p.P2pMessageCodes;import org.ethereum.net.server.Channel;import org.ethereum.net.shh.ShhMessageCodes;import org.ethereum.net.swarm.bzz.BzzMessageCodes;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.spongycastle.util.encoders.Hex;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.S Continue reading >>

Org/meetings/2017amsterdam/agendaideas Tor Bug Tracker & Wiki

Org/meetings/2017amsterdam/agendaideas Tor Bug Tracker & Wiki

Consensus Transparency (prop 239, prop 267, CoSi ) Safely collecting usage metrics in Tor Browser Transitioning from hidden service to single onion service with the same address (how should we implement this feature?) design discussion for replacement "pond"-like system for mixnets.These two papers might be helpful to read in preparation for this discussion since theyare both recent examples of messaging systems with reliable delivery properties that use mixnets: the anonpop paper, "Two Cents for Strong Anonymity: The Anonymous Post-office Protocol" the vuvuzela paper, "Vuvuzela: Scalable Private Messaging Resistant to Traffic Analysis" what does Tor support look like on Android? discuss progress on Tor's new channel scheduler ( #12541 and children - robgjansen, nickm?) authenticated SENDME design to defend against bandwidth DoS attacks ( SponsorV - proposal forthcoming - robgjansen, arma) performance measurements - transitioning Tor metrics from TorPerf to OnionPerf (robgjansen, karsten, hiro) transitioning bandwidth authorities from TorFlow to a more robust codebase new directory authority operators and bandwidth authority operators Testing tor- what areas don't have many tests, or have tests that aren't effective? How much confidence do our automated tests give, how can we improve that? Application support for router consensus: does Tor router consensus support this use case of Zcash nodes tipping random routers safely? can routers publish authenticated app-specific data (eg zcash z-addrs) through the roster consensus mechanism? can we ensure an application has a consistent view of the roster to avoid partitioning attacks? (nathan-at-least is a Tor noob, so this might be a very simple 10 minute overview conversation, or it may be more involved and require protocol d Continue reading >>

Keyword - Ethereum

Keyword - Ethereum

ethereum-bip44 bip 44 hierarchical deterministic address generation for ethereum ethereum-blockies A tiny library for generating blocky identicons. ethereum-blockies-base64 A tiny library for generating base64 encoded PNG blocky identicons. ethereum-blockies-base64-test A tiny library for generating base64 encoded PNG blocky identicons. ethereum-blockies-png A tiny library for generating blocky identicons. ethereum-blockies-updated A tiny library for generating blocky identicons. ethereum-blocks Process blocks from Ethereum client nodes robustly. Catch-up on restart, auto-reconnect to node, etc. ethereum-bridge Ethereum logs listener to connect Oraclize onchain events to the Oraclize offchain engine ethereum-classic-client-binaries Download Ethereum Classic client binaries for your OS ethereum-client-binaries Download Ethereum client binaries for your OS ethereum-common Resources common to all Ethereum implementations ethereum-console Commandline console for Ethereum nodes ethereum-contract-icons A mapping of ethereum contract addresses to broadly accepted icons for those addresses. ethereum-contracts Robust Ethereum contracts wrapper for easier deployment, method invocation and automatic type conversion. ethereum-debugger A standalone debugger for Ethereum ethereum-encryption Use this to encrypt, decrypt, sign and verify data with an ethereum public- or privateKey ethereum-ens Javascript bindings for the Ethereum Name Service ethereum-ens-network-map A simple map of ethereum networks to ENS registry addresses. ethereum-gen-sign-verify * Generate an ethereum address. * Sign any data * Verify that data. ethereum-go-ipc Promisified Ethereum JSON RPC wrappers for Geth (Ethereum Go-Lang implementation) ethereum-htlc Hashed Timelock Contracts for Ethereum ethereum-identicon Continue reading >>

Por Qu Ethereum Requiere El Uso De Udp (y No Tcp) Para El Descubrimiento? - Respuestas Aqu

Por Qu Ethereum Requiere El Uso De Udp (y No Tcp) Para El Descubrimiento? - Respuestas Aqu

Soy consciente de las ventajas de UDP, pero por qu no permitir una eleccin? Dado que Tor requiere el uso de TCP, por qu los desarrolladores de Ethereum decidieron no admitir TCP para su descubrimiento? El descubrimiento basado en UDP es uno de los principales paradigmas del descubrimiento entre pares. Por ejemplo, Universal Plug and Play ( UPnP ) utiliza el protocolo de descubrimiento de servicio simple ( SSDP ) basado en UDP, y BitTorrent tiene un protocolo de descubrimiento de pares local basado en UDP. El mtodo general es multidifundir (difusin?) Sobre UDP y ver quin responde. El hecho de que el UDP no es confiable , es decir, no le importan las respuestas, a diferencia del TCP, significa que no espera respuestas de pares que no existen, o que ya existan pero que ya no estn en lnea. . Si nos acercamos un poco ms a la especificacin RPLx de Ethereum, donde " RLPx es una red criptogrfica de igual a igual y conjunto de protocolos ", vemos que el descubrimiento de nodos de Ethereum se basa en Kademlia , una tabla de hash distribuida para pares descentralizados -peer redes de computadoras ", que ... usa UDP. Continue reading >>

P2p Client Connecting To All Networks

P2p Client Connecting To All Networks

----------------------------------------------------------------------------------------------------------------------- =========> p2p client connecting to all networks [>>>>>> Download Link <<<<<<] ( )----------------------------------------------------------------------------------------------------------------------- =========> p2p client connecting to all networks [>>>>>> Download Here <<<<<<] ( ) ----------------------------------------------------------------------------------------------------------------------- Copy the link and open in a new browser window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peer to Peer Networks (P2P): Explanation and File Sharing. Computer networks are of two types. One is the Client server model where all computers are connected to a server computer that facilitates file sharing. The other type of computer network is Peer to Peer. In a centralized network, a simple loss of connection between the server and clients is enough to cause a failure, but in P2P networks, the connections between every node must be lost in order to cause a data sharing failure. In a centralized system, the administrators are responsible for all data recovery and backups, while. By contrast, a P2P protocol creates TCP connections with multiple hosts and makes many small data requests to each. The P2P client.. These files are shared amongst the peer network which allows the aggregate bandwidth capacity of the network to grow naturally with the number of clients connected. DistribuStream. DConnect Daemon ( / ), an open source Direct Connect's hub (working as daemon) written in C. Works currently under GNU Linux and FreeBSD, but is planned to be able to work on all Unixes and Windows. As a daemon it works in background and. Enterprises s Continue reading >>

Pourquoi Ethereum Exige-t-il L'utilisation D'udp (et Non De Tcp) Pour La Dcouverte? - Rponses Ici

Pourquoi Ethereum Exige-t-il L'utilisation D'udp (et Non De Tcp) Pour La Dcouverte? - Rponses Ici

Pourquoi Ethereum exige-t-il l'utilisation d'UDP (et non de TCP) pour la dcouverte? Je suis conscient des avantages de l'UDP, mais pourquoi ne pas permettre un choix? Depuis que Tor ncessite l'utilisation de TCP, pourquoi les dveloppeurs d'Ethereum ont-ils choisi de ne pas supporter TCP pour la dcouverte? La dcouverte base sur UDP est l'un des principaux paradigmes de la dcouverte par les pairs. Par exemple, Universal Plug and Play ( UPnP ) utilise le protocole SSDP (Simple Service Discovery Protocol) bas sur UDP, et BitTorrent a un protocole Local Peer Discovery bas sur UDP. La mthode gnrale consiste multidiffuser (diffusion?) Sur UDP et voir qui rpond. Le fait que UDP ne soit pas fiable - en d'autres termes, il ne se soucie pas des rponses, contrairement TCP - signifie qu'il n'attend pas de rponses de pairs qui n'existent pas ou qui existaient auparavant mais qui ne sont plus en ligne . Si nous nous penchons un peu plus sur la spcification RPLx d'Ethereum - o RLPx est une suite de protocoles et de rseaux cryptographiques peer-to-peer - nous voyons que la dcouverte de nud d'Ethereum est base sur Kademlia , une table de hachage distribue dcentralise. -peer computer networks ", qui ... utilise UDP. Continue reading >>

Messagecodec Java Source Code

Messagecodec Java Source Code

/* * This file is part of RskJ * Copyright (C) 2017 RSK Labs Ltd. * (derived from ethereumJ library, Copyright (c) 2016 ) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <*/package org.ethereum.net.rlpx;import com.google.common.io.ByteStreams;import io.netty.channel.ChannelHandlerContext;import io.netty.handler.codec.MessageToMessageCodec;import org.apache.commons.lang3.tuple.Pair;import org.ethereum.config.SystemProperties;import org.ethereum.listener.EthereumListener;import org.ethereum.net.client.Capability;import org.ethereum.net.eth.EthVersion;import org.ethereum.net.eth.message.EthMessageCodes;import org.ethereum.net.message.Message;import org.ethereum.net.message.MessageFactory;import org.ethereum.net.p2p.P2pMessageCodes;import org.ethereum.net.server.Channel;import org.ethereum.util.LRUMap;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.spongycastle.util.encoders.Hex;import java.io.IOException;import java.util.*;import java.util.concurrent.atomic.AtomicInteger;import static java.lang.Math.min;import static org.ethereum.net.rlpx.FrameCodec.Frame;/** * The Netty codec which encodes/decodes RPLx frames to subprotocol Messages */public class MessageCodec extends MessageTo Continue reading >>

Ethereumj/ethereumj-core/src/main/java/org/ethereum/net/rlpx/messagecodec.java

Ethereumj/ethereumj-core/src/main/java/org/ethereum/net/rlpx/messagecodec.java

package org.ethereum.net.rlpx;import com.google.common.io.ByteStreams;import io.netty.channel.ChannelHandlerContext;import io.netty.handler.codec.MessageToMessageCodec;import org.apache.commons.lang3.tuple.Pair;import org.ethereum.config.SystemProperties;import org.ethereum.listener.EthereumListener;import org.ethereum.net.client.Capability;import org.ethereum.net.eth.EthVersion;import org.ethereum.net.eth.message.EthMessageCodes;import org.ethereum.net.message.Message;import org.ethereum.net.message.MessageFactory;import org.ethereum.net.p2p.P2pMessageCodes;import org.ethereum.net.server.Channel;import org.ethereum.net.shh.ShhMessageCodes;import org.ethereum.net.swarm.bzz.BzzMessageCodes;import org.ethereum.util.LRUMap;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.spongycastle.util.encoders.Hex;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Scope;import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;import java.io.IOException;import java.util.*;import java.util.concurrent.atomic.AtomicInteger;import static java.lang.Math.min;import static org.ethereum.net.rlpx.FrameCodec.Frame;/** * The Netty codec which encodes/decodes RPLx frames to subprotocol Messages */@[email protected]("prototype")public class MessageCodec extends MessageToMessageCodec { private static final Logger loggerWire = LoggerFactory.getLogger("wire"); private static final Logger loggerNet = LoggerFactory.getLogger("net"); public static final int NO_FRAMING = Integer.MAX_VALUE >> 1; private int maxFramePayloadSize = NO_FRAMING; private Channel channel; private MessageCodesResolver messageCodesResolver; private MessageFactory p2pMessageFactory; private MessageFactory ethMessageFactory; private M Continue reading >>

Package - Ethereumjs-p2p

Package - Ethereumjs-p2p

A javascript libary implementing RPLx the ethereum p2p protocol Implements Ethereum's Wire Protocol and provides networking functions. Creates new Network object with the following arguments options - An object with the Network configuration. See Network options When creating a Network the following options can be used to configure its behavoir. ehtVersion - The version of the Ethereum protocol this peer implements. Defaults to 33 at present. timeout - The lenght of time in milliseconds to wait for a peer to response after connecting to it maxPeers - The max number of peer the network will try to connect to clientId - specifies the client software identity, as a human-readable string host - The hostname or IP address the server is bound to. Defaults to 0.0.0.0 which means any available network port - The TPC port the server is listening to. Defaults to port 30303 stops the tcp server and disconnects any peers returns an array of connected peers a instances of the peer object returns an array of peers the server knows about but is not connected to. The server uses this list to replace peers that disconnect. Broadcast a get peers packet to all of the peers. network.broadcastTransactions(transactions, [callback]) broadcasts an array of transactions to the connected peers transactions - an array of valid transactions network.broadcastBlocks(blocks, [callback]) broadcast an array of blocks to the connected peers network.broadcastDisconnect(reason, [callback]) broadcast a disconnect packet to all of the peers reason - the reason the client is disconnecting. See peer.sendDisconnect(reason, [callback]) The Network object inherits from Events.EventEmitter and emits the following events. 'message.hello' - emitted on receiving a hello packet. Provides a hello object as an argumen Continue reading >>

Perch Ethereum Richiede L'uso Di Udp (e Non Tcp) Per La Scoperta? - Risposte Qui

Perch Ethereum Richiede L'uso Di Udp (e Non Tcp) Per La Scoperta? - Risposte Qui

Sono consapevole dei vantaggi di UDP, ma perch non consentire una scelta? Da quando Tor richiede l'uso del TCP, perch gli sviluppatori di Ethereum hanno scelto di non supportare il TCP per la scoperta? La scoperta basata su UDP uno dei principali paradigmi della scoperta tra pari. Ad esempio, Universal Plug and Play ( UPnP ) utilizza il protocollo SSDP (Simple Service Discovery Protocol) basato su UDP e BitTorrent ha un protocollo Local Peer Discovery basato su UDP. Il metodo generale multicastare (broadcast?) Su UDP e vedere chi risponde. Il fatto che UDP sia inaffidabile - in altre parole, non si preoccupa delle risposte, al contrario di TCP - significa che non in attesa di risposte da colleghi che non esistono o che erano esistiti in precedenza ma che non sono pi online . Se ci avviciniamo un po 'di pi alla specifica RPLx di Ethereum - dove " RLPx una rete crittografica peer-to-peer e una suite di protocolli " - vediamo che la scoperta dei nodi di Ethereum basata su Kademlia , " una tabella hash distribuita per il peer-to decentralizzato -peer computer networks ", che ... utilizza UDP. Continue reading >>

Npm Graph - Ethereumjs/node-blockchain-server

Npm Graph - Ethereumjs/node-blockchain-server

NPM packages used by ethereumjs/node-blockchain-server async Higher-order functions and common patterns for asynchronous code (used by 461k repos) ethereumjs-util a collection of utility functions for Ethereum (used by 7k repos) level Fast & simple storage - a Node.js-style LevelDB wrapper (a convenience package bundling LevelUP & LevelDOWN) (used by 5k repos) ethereumjs-tx An simple module for creating, manipulating and signing ethereum transactions (used by 4k repos) semaphore semaphore for node (used by 1k repos) ethereumjs-block Provides Block serialization and help functions (used by 1k repos) ethereumjs-vm an ethereum VM implementation (used by 900+ repos) merkle-patricia-tree This is an implementation of the modified merkle patricia tree as speficed in the Ethereum's yellow paper. (used by 600+ repos) external-ip A node.js library to get your external ip from multiple services (used by 600+ repos) ethereum-common Resources common to all Ethereum implementations (used by 300+ repos) ethereumjs-blockchain A module to store and interact with blocks (used by 200+ repos) devp2p A javascript libary implementing RPLx the ethereum p2p protocol (used by 100+ repos) Follow us on twitter @npmgraph | Find this useful? tell your friends! Continue reading >>

Devp2p/rlpx.md At Master Ethereum/devp2p Github

Devp2p/rlpx.md At Master Ethereum/devp2p Github

multiple protocols over single connection Authenticated encryption is employed in order to provide confidentiality and protect against network disruption. This is particularly important for a well-formed network where nodes make long-term decisions about other nodes which yield non-local effects. Dynamic framing and flow control ensure that each protocol is allotted the same amount of bandwidth. new nodes can reliably find nodes to connect to nodes have sufficient network topology information to uniformly connect to other nodes RLPx utilizes Kademlia-like routing which has been repurposed as a p2p neighbour discovery protocol. RLPx discovery uses 512-bit public keys as node ids and sha3(node-id) for xor metric. DHT features are not implemented. Packets are dynamically framed, prefixed with an RLP encoded header, encrypted, and authenticated. Multiplexing is achieved via the frame header which specifies the destination protocol of a packet. All cryptographic operations are based on secp256k1 and each node is expected to maintain a static private key which is saved and restored between sessions. It is recommended that the private key can only be reset manually, for example, by deleting a file or database entry. Peer: Node which is currently connected to host node. Node discovery and network formation are implemented via a kademlia-like UDP. Major differences from Kademlia: DHT-related features are excluded. FIND_VALUE and STORE packets are not implemented. xor distance metric is based on sha3(nodeid) The parameters chosen for kademlia are a bucket size of 16 (denoted k in Kademlia), concurrency of 3 (denoted alpha in Kademlia), and 8 bits per hop (denoted b in Kademlia) for routing. The eviction check interval is 75 milliseconds, request timeouts are 300ms, and the idle Continue reading >>

Security - Why Does Ethereum Require Use Of Udp (and Not Tcp) For Discovery? - Ethereum Stack Exchange

Security - Why Does Ethereum Require Use Of Udp (and Not Tcp) For Discovery? - Ethereum Stack Exchange

Why does Ethereum require use of UDP (and not TCP) for discovery? I am aware of the advantages of UDP, but why not allow a choice? Since since Tor requires the use of TCP, why have Ethereum developers elected not to support TCP for discovery? UDP-based discovery is one of the main paradigms of peer discovery. For example, Universal Plug and Play ( UPnP ) uses the UDP-based Simple Service Discovery Protocol ( SSDP ), and BitTorrent has a UDP-based Local Peer Discovery protocol. The general method is to multicast (broadcast?) over UDP and see who responds. The fact that UDP is unreliable - i.e. in short, it doesn't care about responses, in contrast to TCP - means it's not waiting around for responses from peers that don't exist, or which had previously existed but which are no longer online. If we poke around a little closer in Ethereum's RPLx specification - where "RLPx is a cryptographic peer-to-peer network and protocol suite" - we see that Ethereum's node discovery is based on Kademlia , "a distributed hash table for decentralized peer-to-peer computer networks", which... uses UDP. Continue reading >>

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