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Parity Ethereum Client

A Major Vulnerability Has Frozen Hundreds Of Millions Of Dollars Of Ethereum

A Major Vulnerability Has Frozen Hundreds Of Millions Of Dollars Of Ethereum

A major vulnerability has frozen hundreds of millions of dollars of Ethereum Google to add restaurant wait times to Google Search and Maps, followed by grocerystores Today is not a good news day for Ethereum. A vulnerability found within a popular wallet has frozen potentially hundreds of millions of dollars of the crypto currency in a second setback in recent months. Parity Technologies, the company behind widely used wallet service Parity, today disclosed an issue that could enable the contents of a wallet to be wiped. The issue affects multi-sig wallets a technology that uses the consent of multiple parties for additional security on transactions that were deployed after July 20. In other words, ICOs that were held since then may be impacted. Its a kicker because it is the second time in just a few months that a major Parity bug has been unearthed with potentially costlyrepercussions for Ethereum, which is the worlds second highest-valued crypto currency with a total market cap of over $27 billion.Back in July, a vulnerability in Parity led to 150,000 ETH (then worth around $30 million) being stolen. That bug was fixed July 19 hence the significance of the July 20 date but one positive element of that first scare is that many in the Ethereum community, and particularly those who have held ICOs, backed away from the technology in favor of alternatives. Even those who did use Parity may not have opted for the multi-sig wallet. But still it is a major security issue with wider implications.Parity explained that it found the problem when one users wallet was wiped: Following the fix for the original multi-sig issue that had been exploited on 19th of July (function visibility), a new version of the Parity Wallet library contract was deployed on 20th of July. However that Continue reading >>

Ethereum's Parity Hacked, Half A Million Eth Frozen

Ethereum's Parity Hacked, Half A Million Eth Frozen

A security vulnerability in Ethereums second most popular client, Parity, has been exploited by this address earlier today. All Parity multi-sig wallets have been frozen. That includes the Polkadot ICO and may include many others totaling around 500,000 eth, worth $150 million, according to some number crunching . Following the fix for the original multi-sig issue that had been exploited on 19th of July (function visibility), a new version of the Parity Wallet library contract was deployed on 20th of July, Parity says before adding: However that code still contained another issue it was possible to turn the Parity Wallet library contract into a regular multi-sig wallet and become an owner of it by calling the initWallet function. It would seem that issue was triggered accidentally 6th Nov 2017 02:33:47 PM +UTC and subsequently a user suicided the library-turned-into-wallet, wiping out the library code which in turn rendered all multi-sig contracts unusable since their logic (any state-modifying function) was inside the library. The code library, a sort of collection of code templates, was kind of a smart contract itself. That has now been wiped out, and with it the code functions too. Meaning multi-sig wallets (addresses that require two or three private key signatures to move) are blacked out. So the funds cant move because you cant talk to the wallets. Or at least thats what is known at this stage as the story is developing with further information to come in due time, but the big question now is whether to fork or not in order to unfreeze the funds. Bitcoin forked in 2010 after a bug was able to create billions of bitcoins out of thin air. Ethereum forked in 2016 after the then biggest smart contract was hacked. Bitcoin forked at a time when the community was far to Continue reading >>

Parity Next Generation Ethereum Client, Written In Rust | Hacker News

Parity Next Generation Ethereum Client, Written In Rust | Hacker News

This is more of a general question, but... what is the advantage of having a "faster" client, i.e., one that executes contracts faster? Is it just that your machine will use less power and you'll have a lower electricity bill? Or have more resources left over for computing hashes? Or is there an advantage to be gained from executing the contract faster than your peers? Can anyone recommend a mid-level description of Ethereum that is more detailed than Wikipedia but not as detailed as the yellow paper? In particular, I'd like to understand whether mining fees are paid for executing contracts or for solving hashes or for both; and how consensus works (i.e., how it is coordinated that, as Wikipedia says, "[e]very contract is run on every full Ethereum node simultaneously and the result is the consensus of the output"). I think a greater benefit of using Rust is having a more secure client for something that handles transactions, contracts or money. Reliability, too, thanks to memory and concurrency protections. Some languages, maybe Rust, also have type systems and interface checks (eg Design-by-Contract) that can protect integrity of data by preventing it from being misused as well. So, a number of benefits on correctness angle before one even considers speed. In terms of performance and speediness, here are a few examples where faster means better:* Overall, less time to wait as a normal user, e.g. when syncing with the network to verify transactions.* Possibility to run the chain on low footprint iot devices.* Mining is faster if transactions can be processed faster therefore more money although admittedly the PoW itself dominates the cost here. > In particular, I'd like to understand whether mining fees are paid for executing contracts or for solving hashes or for bot Continue reading >>

Github - Paritytech/parity: Fast, Light, Robust Ethereum Implementation.

Github - Paritytech/parity: Fast, Light, Robust Ethereum Implementation.

Be sure to check out our wiki for more information. Parity's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing Parity using the sophisticated and cutting-edge Rust programming language. Parity is licensed under the GPLv3, and can be used for all your Ethereum needs. Parity comes with a built-in wallet, to install it please follow these instructions . It includes various functionality allowing you to: create and manage your Ethereum accounts; manage your Ether and any Ethereum tokens; From Parity Ethereum client version >=1.10, the User Interface (UI) is accessible in a separate application called Parity UI. To keep using the UI in the browser (deprecated), follow these steps . By default, Parity will also run a JSONRPC server on 127.0.0.1:8545 and a websockets server on 127.0.0.1:8546. This is fully configurable and supports a number of APIs. If you run into an issue while using Parity, feel free to file one in this repository or hop on our Gitter or Riot chat room to ask a question. We are glad to help! For security-critical issues, please refer to the security policy outlined in SECURITY.MD . Parity's current release is 1.9. You can download it at or follow the instructions below to build from source. Parity requires Rust version 1.23.0 to build We recommend installing Rust through rustup . If you don't already have rustup, you can install it like this: Make sure that these binaries are in your PATH. After that you should be able to build parity from source. Or, if you want to contribute testing the upcoming release: And to test the latest code landed into the master branch: # download Parity code$ git clone cd parity# build in release mode$ cargo build --release This will produce an executable in the ./target/release subdirector Continue reading >>

Releases Paritytech/parity-ethereum Github

Releases Paritytech/parity-ethereum Github

[client]: Fix for incorrectly dropped consensus messages ( #11082 ) ( #11086 ) Update hardcoded headers (foundation, classic, kovan, xdai, ewc, ...) ( #11053 ) Update light client headers: ropsten 6631425 foundation 8798209 ( #11201 ) Update list of bootnodes for xDai chain ( #11236 ) ethcore/res: add mordor testnet configuration ( #11200 ) [chain specs]: activate Istanbul on mainnet ( #11228 ) [builtin]: support multiple prices and activations in chain spec ( #11039 ) [receipt]: add sender & receiver to RichReceipts ( #11179 ) [ethcore/builtin]: do not panic in blake2pricer on short input ( #11180 ) Made ecrecover implementation trait public ( #11188 ) Insert explicit warning into the panic hook ( #11225 ) Use provided usd-per-eth value if an endpoint is specified ( #11209 ) Add Constantinople EIPs to the dev (instant_seal) config ( #10809 ) (already backported) util Host: fix a double Read Lock bug in fn Host::session_readable() ( #11175 ) ethcore client: fix a double Read Lock bug in fn Client::logs() ( #11172 ) Type annotation for next_key() matching of json filter options ( #11192 ) [dependencies]: jsonrpc 14.0.1 ( #11183 ) Switching sccache from local to Redis ( #10971 ) Add new line after writing block to hex file. ( #10984 ) Pause pruning while snapshotting ( #11178 ) Change how RPCs eth_call and eth_estimateGas handle "Pending" ( #11127 ) Filter out some bad ropsten warp snapshots ( #11247 ) [builtin]: support multiple prices and activations in chain spec ( #11039 ) [chain specs]: activate Istanbul on mainnet ( #11228 ) ethcore/res: add mordor testnet configuration ( #11200 ) Update list of bootnodes for xDai chain ( #11236 ) ethcore: remove test-helper feat from build ( #11047 ) Secret store: fix Instant::now() related race in net_keep_alive ( #11155 ) ( #111 Continue reading >>

Parity Team Publishes Postmortem On $160 Million Ether Freeze

Parity Team Publishes Postmortem On $160 Million Ether Freeze

Parity Team Publishes Postmortem on $160 Million Ether Freeze Nov 15, 2017 at 15:05 UTC|UpdatedNov 15, 2017 at 18:35 UTC The team behind the Parity ethereum software client has released new details on how a critical code flaw resulted in the freezing of $160 million worth of ether. As it stands, there remains no immediate solution to renewing access to those funds - a situation which Parity acknowledged has caused "distress and anxiety" within the community. According to the post , there is "no timeline" for the release of the locked-up ETH - a move which may require a platform-wide upgrade to restore functionality to the more than 500 affected wallets. The hack, which saw the "accidental" deletion of the code library which supports Parity's multi-signature wallets (those that require multiple keys to issue transactions), was due to an oversight in the wallet code, the blog post states. While the risk was identified on Github back in August, it was misinterpreted by the Parity team, and no action was taken to further secure the wallets. As for the process of finding a solution, Parity said that it would work on ethereum improvement protocols that might offer a way to bring back access. Following the attack, discussion has been circulating as to whether updating the code to unwind the problem would constitute a "bail-out" akin to the DAO controversy from last year . Regarding the potential release of the locked millions, Parity says it intends to "follow the will of the community" in deploying the code fixes. "Parity Technologies will handle much of the development work around these proposals and work constructively with the Ethereum Foundation team and the community towards further protocol layer development." Going forward, Parity argued that "more extensive and forma Continue reading >>

Choosing An Ethereum Client | Truffle Suite

Choosing An Ethereum Client | Truffle Suite

There are many Ethereum clients to choose from. We recommend different clients depending on whether you are developing or deploying. We recommend Ganache , a personal blockchain for Ethereum development that runs on your desktop. Part of the Truffle Suite, Ganache simplifies dapp development by placing your contracts and transactions front and center. Using Ganache you can quickly see how your application affects the blockchain, and introspect details like your accounts, balances, contract creations and gas costs. You can also fine tune Ganache's advanced mining controls to better suit your needs. Ganache is available for Windows, Mac and Linux, and you can download it here . Ganache, when launched runs on It will display the first 10 accounts and the mnemonic used to create those accounts. ( Read more about account mnemonics .) By default, Ganache will use the following mnemonic: candy maple cake sugar pudding cream honey rich smooth crumble sweet treat This mnemonic can be changed to be randomly generated, or you can input your own. Warning: Do not use this mnemonic on the main Ethereum network (mainnet). If you send ether to any account generated from this mnemonic, you will lose it all! We also recommend using Truffle Develop, a development blockchain built directly into Truffle. Truffle Develop helps you set up an integrated blockchain environment with a single command, no installation required. Run Truffle Develop by typing the following into a terminal: This will run the client on It will display the first 10 accounts and the mnemonic used to create those accounts. ( Read more about account mnemonics .) Truffle Develop uses the same mnemonic every time to make developing your applications as easy as possible: candy maple cake sugar pudding cream honey rich smoot Continue reading >>

Parity

Parity

Parity comes with an extensive, easy-to-use, in-built Ethereum Wallet and app environment that can be accessed via your Web browser of choice. Account, address book and multi-sig management Hardware and electronic cold wallet support Develop smart contracts and decentralised applications with Parity or build protocol extensions. Check out our Wiki , Gitter and Bug Bounty Program Parity is designed for mission critical use in enterprise environments. Parity has a number of features that make it perfect for deployment in private or consortium setting. The Parity Ethereum client is built from the ground up to the highest standards of software development. Tuned, hand optimised use of low-level Rust language JITEVM turbocharges execution of complex contracts Multi-level in-memory caching Memory and concurrency safety guaranteed by Rust language Actor-based modularity ensures maximal resilience Unit tested and peer reviewed from day one Standard, JSON-based, chain-specification format EVM plugins allow native speed contracts Actor-based modular architecture with IPC Rust's ownership tracking facilitates minimal memory footprint Cache management gives fine control to user State-trie pruning minimises storage footprint 1-line install on Mac and Linux Docker images available Library APIs are fully documented 100% consensus test conformant implementation Complies with standard devp2p network protocol Fully compatible with JSON-RPC API Stable is the most mature and tested software Beta comes with additional features and better performance but may yet have quirks and issues to be fixed Nightly is a cutting edge software build but comes with a strong caveat against using it for managing anything of value From RLP and the Trie to the network subsystem. We aim for our unit tests to Continue reading >>

Paritytech

Paritytech

The internet has become the very fabric of our modern lives. As we move into the future, a trust-free interaction system will be key to combat the risks and shortcomings of the current internet architecture and enable a whole new range of user applications. At Parity Technologies, we are building software based on new peer-to-peer technology to power this future decentralised web. Say 'Hello!' to Web3, your Secure Social Operating System. We are an infrastructure and innovation focused company building platforms and applications. Our work combines cutting-edge cryptography, cellular system, peer-to-peer technology and decentralised consensus architectures. We live & breathe open source we've worked with our community to create the tech stack of the emerging decentralized Web 3. Through our enterprise initiatives, we are solving the problems that have been unaddressed by conventional server-client architecture. The world's most advanced Ethereum client and user interface providing the platform of choice for developers and users of decentralised applications Continue reading >>

Parity Io - Setting Up A High-capacity Ethereum Client - Stack Overflow

Parity Io - Setting Up A High-capacity Ethereum Client - Stack Overflow

Setting up a high-capacity Ethereum client I'm looking to set up a server (or collection of servers) that can act as an Ethereum node to which I can send a large number of requests, looking at up to 100 per second, to get data from the blockchain such as account balances, transactions etc (Like Etherscan). Correct me if I'm wrong, but I don't think such a system could be possible with a regular parity or geth client running on a single server with the chain data on an SSD, so what I'm thinking of doing is the follwing: Configure a parity client with SSD on Server A, which will act as a regular node Have the chain data synchronized onto another SSD on Server B Set up parity client on Server B that is not connected to the Ethereum network, and uses the chain data copied from Server A. Does not process the transactions. Transactions, balances, etc. can be queried at Server B RPC socket. The reason for this setup is so that Server B has little overhead as possible, that way it can handle many more queries. I'm wondering if it makes sense to use this set up, or if it's even possible. A simpler solution would be best, but I can't find much info on how high capacity blockchain services run. I'd really appreciate any pointers. Continue reading >>

Ethereum Client Developer Accidentally Locks $150 Million Of Userfunds

Ethereum Client Developer Accidentally Locks $150 Million Of Userfunds

Cryptocurrency Market, Blockchain Tech, & ICO News | Chart & Data Analytics | Join our community on Telegram! Ethereum Client Developer Accidentally Locks $150 Million of UserFunds Due to a security vulnerability within Paritys code one of the largest Ethereum clients over $150 million worth of user funds have been frozen and are unable to be accessed. According to an alert issued by Parity Technologies yesterday (November 7th), the vulnerability was discovered within the standard multi-signature (multi-sig) wallet update that was deployed on July 20th (A wallet multi-sig feature increases security by requiring more than one key to initiate and broadcast Ethereum transactions). The vulnerability itself was discovered yesterday by a client developer that goes by the name devops199, who accidentally deleted a code libarary from the Parity wallet, and then reported it on Github . In consequence of devops199s mistake, all wallets utilizing the companys multi-signature function became frozen, leaving thousands of users completely unable to access their funds an estimated amount of over $152 million. On top of this, several startups and open-source projects that recently launched initial coin offerings (ICOs) have come forward, claiming that their 151 wallet addresses have been affected by the software failure. As expected, this event has placed a considerable amount of attention on Parity Technologies, which also lost $30 million of Ether in July due to a hack. Moreover, it comes at a time when Ethereum itself is receiving a lot of attention for fueling over 10,000 ICO projects, 13 of which raised over $100 million alone. One of these is Polkadot, which raised over $145 million in their token sale last month. Now, due to the clients failure, the blockchain startup is dealin Continue reading >>

Parity Ethereum Dev

Parity Ethereum Dev

Fast, light, robust Ethereum implementation. Fast, light, robust Ethereum implementation. Parity Ethereum is a software stack that lets you run blockchains based on the Ethereum Virtual Machine (EVM) with a number of different consensus engines. That is, it can serve as a client for the public Ethereum network as well as be the platform for you. Parity is written from the ground-up for correctness-verifiability, modularisation, low-footprint and high-performance. To this end it utilises the Rust language, a hybrid imperative/OO/functional language with an emphasis on efficiency. It is professionally developed by Parity Technologies; we aim to have all important logic 100% unit-tested, all public APIs 100% documented, all code reviewed by multiple peers and follow a pipelined 6-ish-week release cycle similar to the Rust compiler. For private chain setups, Parity supports a Proof-of-Authority (PoA) consensus engine to be used as a replacement for the Proof-of-Work (PoW) consensus engine. Proof-of-Authority does not depend on nodes solving arbitrarily difficult mathematical problems, but instead uses a hard-configured set of "authorities" - nodes that are explicitly allowed to create new blocks and secure the blockchain. This makes it easier to maintain a private chain and keep the block issuers accountable. To allow for frictionless development and demos, Parity Ethereum Dev uses a development block making engine instead of PoW. When used, transactions will be instantly "mined" (after being confirmed by Secure Transaction Signer) and all blocks will be accepted. Furthermore, it exposes the standard and Parity specific Ethereum RPC methods. Continue reading >>

What Is The Ethereum Parity Chrome Extension?

What Is The Ethereum Parity Chrome Extension?

Most Ethereum users are too aware of the different wallet solutions at their disposal. Parity is one of the most popular wallet options in this regard. Interestingly enough, the Parity project also has a Chrome extension, which provides similar functionalities to a certain degree. However, Parity is about more than just a wallet service, as it serves as an official Ethereum browser as well. Similar to how the Parity project works, its Chrome plugin offers the same degree of functionality. Parity is mainly an Ethereum browser, which gives users convenient access to everything the Ethereum ecosystem has to offer. It also has built-in wallet capabilities, which means it can be used to send, receive, and store Ether currency. The main selling point of this project is how it provides users around the world with access to decentralized applications and ERC20 tokens, among other things. Thankfully, the Parity Chrome plugin can also be installed from the webstore directly. This makes the process a lot easier compared to downloading a package from GitHub and having to complete the process manually. A lot of novice users would struggle with having to do it the manual way, to say the least. Chrome is not the most user-friendly browser when it comes to installing new extensions, as it is quite a confusing process for most novice users. That being said, being able to port important Parity functions to the browser is quite significant. Using the Chrome extension doesnt require users to download the Parity desktop client, which is a nice addition. Users can open Dapps right in their browser, as well as inspecting and confirm transactions related to the Parity desktop client. It is certainly possible to run this client without its desktop counterpart, but it will not provide the full Continue reading >>

Running A Parity Ethereum Node In Docker And Connectsafely

Running A Parity Ethereum Node In Docker And Connectsafely

Running a Parity Ethereum node in Docker and connectsafely Parity is an Ethereum client written in Rust by the good people of Ethcore . It syncs up way faster than the Go client and somehow takes a lot less disk space. You can get it running in a Docker container, and connect to it, taking the following steps: First download the Parity Docker image, the latest version. Check the Dockerfile of this image here if you like. To get an idea of all the options, you can run: docker run -ti ethcore/parity:beta-release --help To just start it, using the defaults, run: docker run -it --name=my-parity ethcore/parity:beta-release You will see the parity node booting up and start syncing. If you have worked with the Ethereum Go client before, you will appreciate the speed. By default, parity will start syncing the Homestead chain. You can specify a different chain like Ropsten Testnet or Ethereum Classis using the chain flag: docker run -it --name=my-parity ethcore/parity:beta-release \ Leaving the docker session with CTRL-c will stop the attached container. Use CTRL-p CTRL-q to gracefully detach and keep parity syncing. You can reattach using: No problem if you accidentily stop it. You can just restart the docker container again by issuing: If you want to restart your parity container with new settings, you should first remove the old It is a very good practice to store the actual blockchain data outside of the docker container. This lets you easily upgrade the Parity at a later stage. This can be done by mapping a host directory to the directory inside the docker container using the -v flag. In the above example we map the host directory /var/parity/testnet to the directory inside the Docker container where Parity stores the blocks /root/.parity. To see if it is up-to-date, attac Continue reading >>

How To Use The Parity Ethereum Wallet

How To Use The Parity Ethereum Wallet

Interacting with the Ethereum platform is getting easier by the day! Especially with applications like Parity , an Ethereum client that s integrated directly into your web browser. Not only does it allow the user to access the basic Ether and token wallet functions, it it is also an Ethereum GUI browser that provides access to all the features of the Ethereum network including dApps. Parity is a full node wallet, which means that you store the blockchain on your computer. The wallet is available for Ubuntu, OSX, Docker and Windows. Today, we're going to show you how to install and use the Parity wallet to store, receive and send Ether and tokens. The Parity wallet also allows you to interact with dApps. We will cover this part very soon in a future guide. Stay tuned! Step 1: Click here to go to the Parity download page Step 2: Scroll down, choose your O.S and download. Were using Windows Step 3: Double-click the downloaded setup Step 7: Click Close to finish the installation Parity should open in your browser automatically. You can always open it by searching for parity on your windows toolbar. Step 2: Read the terms, tick the "I accept these terms and conditions" box and click "Next" Step 4: Enter and repeat your password. Optionally, you can also include a hint above the password field Step 7: Save both the public address, where you will receive payments and your seed which is needed to restore your wallet. You can also print the seed in the lower right corner Step 9: Click Close to go to your wallet Once your account has been created, youll be taken to the Parity dashboard. Before we go on, we want to show you how to restore a previous wallet you may have created with another app like MyEtherWallet or Mist. Step 3: Now, you have to choose from the options available. Continue reading >>

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