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Ethereum Mnemonic Phrase

Freewallet Family

Freewallet Family

90% of users don't backup their private keys or remember their mnemonic phrases. So we have created the app that is secure by design. The majority of all assets are stored in an offline vault to ultimately secure your funds against any malicious activity. If you lose your device, you'll be able to freeze your account or to access it from any other Android or iOS device. You can secure your wallet by enabling additional security code and by verifying your email or mobile phone number. Continue reading >>

Imtoken Ties.network

Imtoken Ties.network

imToken is a cryptocurrency wallet that was created as a mobile application for Android and iOS. It allows you to make transactions for ICO that officially support this transaction method. To perform any transactions, you must add your Ethereum wallet to imToken, or create it in this application. If you already have a wallet, please go to step 2. If not, follow the following instructions: 1a) Open the imToken app and press Create Wallet 1b) If you already have a wallet, go to the Assets tab and press the icon in the top right 2) Make a name for your wallet, a password and (optionally) a tip for your password, after which press Create Wallet. 3) If everything was entered correctly, youll see the following message. In the same window you will be offered to make back-ups (save your private key on your device or generate a mnemonic phrase). 4) This step and all following steps are optional, but recommended. Without them you can lose access to your wallet! Press Go to backup now. A window will show up asking which method youd like to use to access your wallet : private key or mnemonic phrase. 5.1) Lets take a look at the mnemonic phrase option first. Press the Backup mnemonic button and enter your password to confirm the action: 5.2) A window will pop up, containing the generated mnemonic phrase. Write it down exactly as it shows before going to the next step. Press Next. 5.3) A new window will come up, containing the same words but in a random order. You need to arrange them exactly as shown before to confirm your mnemonic phrase. 6) In order to save the private key just press the Private Key button in the menu shown in step 4 and enter your password. 1a) If you are still in the main menu and havent created a wallet, press the Import Wallet button 1b) If you already have a Continue reading >>

Bitcoin /ethereum Bip 0039mnemonicphrases

Bitcoin /ethereum Bip 0039mnemonicphrases

a device such as a pattern of letters, ideas, or associations that assists in remembering something. Instead of remembering and keeping track of all the keys (account, public and private), the above proposals help the users in only remembering the generated mnemonic and from that mnemonic you will be able to generate the keys whenever you wish to. This site is useful in generating the mnemonic or deriving addresses from an existing mnemonic: A mnemonic phrase, mnemonic recovery phrase or mnemonic seed is a list of words which store all the information needed to recover a Bitcoin wallet. Wallet software will typically generate a mnemonic backup phrase and instruct the user to write it down on paper. If the users computer breaks or their hard drive becomes corrupted, they can download the same wallet software again and use the paper backup to get their bitcoins or etherium back. Anybody else who discovers the phrase can steal the bitcoins, so it must be kept secret. For example, it must not be typed into any website. Mnemonic phrases are an excellent way of backing up and storing bitcoins and so they are used by almost all well-regarded wallets. [1] Stored bitcoins are not secured by mnemonic phrases , hardware wallets , multisignature , passwords, hash functions or anything like that; they are secured by people. A $5 wrench attack can easily crack any of these mechanisms. Continue reading >>

Myetherwallet Opens The Ethereum Universe For You

Myetherwallet Opens The Ethereum Universe For You

MyEtherWallet Opens the Ethereum Universe for You MyEtherWallet is one of the easiest approaches to owning Ethereum and Ethereum-based tokens and assets. For the savvy user, this web service can save a lot of nerves To buy and store your first Ethereum, you can choose several paths. You can choose the core Ethereum wallet, but face the hassle of completing the whole blockchain. There are also desktop wallets that do not hold the complete blockchain. MyEtherWallet is a great mix of security and availability, with easy and simplified features. According to fans of MyEtherWallet, the service has been essential in the widespread adoption of Ethereum. Especially given that the core wallet is a challenge to most computers and may simply freeze up before finishing the download of the whole blockchain. The online service allows anyone to anonymously create a wallet, even offline. The creation of a wallet happens in a browser, but MEW is not a web wallet where a third party holds your keys. You hold your private keys- MEW is simply a service that can run a wallet from many sources, including a 12-word mnemonic phrase, a saved private key or other sources such as Trezor hardware wallet. One day, you want to check your balance and this happens: You can sit around and wait around, but you can also run MEW entirely on your computer- and even move it to an airtight offline computer. To do so, go to the GitHub page and download the latest version of the etherwallet. To run the wallet, open the .zip and click on index.html- and that's it, this starts the wallet in a browser. You can generate a UTC keystone file and have a brand new wallet created offline. To have access to MEW, you simply keep the whole .zip file without moving things around. The wallet has just the right .html and ja Continue reading >>

Understanding Mnemonics And The Blockchain Wallet

Understanding Mnemonics And The Blockchain Wallet

Share your email with us to receive updates on Blockchain and the industry. Johnny Mnemonic is a 1995 sci-fi action film starring Keanu Reeves which takes place in the year 2021, where Johnny Mnemonic has to transport information using a mnemonic device. Poster courtesy of Image Entertainment Pronounced ne-manik, in its purest form a mnemonic is a pattern of letters, words, or associations which allows you to easilyremember information, and has been used by humans for thousands of years. In other words, it can be a very useful tool to help us memorize important information we need to remember. In bitcoin, mnemonics take on the same basic principles, which are using a group of words to generate a unique wallet phrasewhich gives you a human readable format of words to back-up your wallet for recovery.The mnemonic code for generating these phrases was introduced into bitcoin in 2013 in aBitcoin Improvement Proposal or BIP ( learn more about BIPs ). The proposal gave a distinct description of it as: This BIP describes the implementation of a mnemonic code or mnemonic sentence a group of easy to remember words for the generation of deterministic wallets. It consists of two parts: generating the mnemonic, and converting it into a binary seed. This seed can be later used to generate deterministic wallets using BIP-0032 or similar methods. Example of the mnemonic passphrase in the Blockchain Wallet How is a mnemonic used in the Blockchain Wallet? The mnemonic passphrase is provided to you when you sign up for a new Blockchain Wallet. The purpose of this is in case you need to recover your wallet at a later date, if you lose your login information. When you recover your wallet with your mnemonic, your password and identifier will be displayed to you. Your main password cannot b Continue reading >>

Designing A Simple And Secure Ethereum Wallet For Themasses

Designing A Simple And Secure Ethereum Wallet For Themasses

Designing a simple and secure Ethereum wallet for themasses (and why mnemonic seed phrases are a securityhole) Today, there are two extremes when it comes to holding cryptocurrencies. On one hand, there is the bank-like approach of Coinbase, which takes full custody of funds. While this has clear advantages in user experience, there are large regulatory barriers and liability concerns, and it flies in the face of Nick Szabos famous maxim, Trusted third parties are security holes . The alternative is the opposite approach, giving users complete self-custody over their funds. Unfortunately, when you add millions of inexperienced mainstream users into the mix, this introduces an even larger security hole: user error. If youve downloaded a mobile cryptocurrency wallet lately, you were probably asked to write down a 12 word mnemonic seed phrase like the above. This has become the gold standard in the industry, adopted by almost every wallet app. Theres just one issue: its setting users up for failure. For starters, the timing is bad. Youve just installed a shiny new app, youre probably not at home, and youre being asked to write something down and store it in a safe place. The odds that you actually do it are slim. More likely, youre going to take a screenshot, write it down in a note or email it to yourself, without seriously considering who has access to these repositories. Second, its a non-standard behavior. Of the millions of apps that users are accustomed to, none are asking you to write down secret phrases. Lets be honest, its pretty strange, and you cant blame users for not taking it seriously. Touch and Face ID have been training users towards faster, less complicated authentication. Seed phrases are a step in the wrong direction. Finally, youre being asked to writ Continue reading >>

Differences Between Wallet Types (e.g. Private Key Vs Keystore)

Differences Between Wallet Types (e.g. Private Key Vs Keystore)

This is encrypted by the password you chose. This Keystore file matches the format used by Mist so you can easily import it in the future. Typically these come in 12-word or 24-words. They can derive multiple addreses - meaning your phrase actually is able to create multiple accounts, addresses, and private keys. Ledger, TREZOR, MetaMask, and Jaxx create these for you. MyEtherWallet does not currently derive mnemonic phrases, but may in the future. This is the unencrypted text version of your private key, meaning no password is necessary. If someone were to find your unencrypted private key, they could access your wallet without a password. For this reason, encrypted versions are typically recommended. However, you should print the paper wallet or save this in an offline environment (like a piece of paper or USB drive). This ensures a lost password does not result in lost ETH, and acts as another backup. This is the unencrypted, JSON format of your private key. It gives you a file, just in case you prefer a file over a string of characters This means you do not need the password but anyone who finds your JSON can access your wallet & Ether without the password. Continue reading >>

Overview | Bitcore

Overview | Bitcore

The Mnemonic class provides an implementation of a mnemonic code or mnemonic sentence a group of easy to remember words for the generation of deterministic keys. The class handles code generation and its later conversion to a HDPrivateKey . See the official BIP-0039 for technical background information. Mnemonics is implemented as a separate module and you must add it to your dependencies: For creating a new random mnemonic code you just create a new instance. var Mnemonic = require('bitcore-mnemonic');var code = new Mnemonic();code.toString(); // 'select scout crash enforce riot rival spring whale hollow radar rule sentence' The Mnemonic class can use any list of 2048 unique words to generate the mnemonic code. For convenience the class provides default word lists for the following languages: English (default), Chinese, French, Japanese and Spanish. Those word list are published under Mnemonic.Words.LANGUAGE, take a look at the following example: var Mnemonic = require('bitcore-mnemonic');var code = new Mnemonic(Mnemonic.Words.SPANISH);code.toString(); // natal hada sutil ao slido papel jamn combate aula flota ver esfera...var myWordList = [ 'abandon', 'ability', 'able', 'about', 'above', ... ];var customCode = new Mnemonic(myWordList); The Mnemonic class provides a static method to check if a mnemonic string is valid. If you generated the mnemonic code using any of the default word list, the class will identify it, otherwise you must provide the word list used. var Mnemonic = require('bitcore-mnemonic');var code = 'select scout crash enforce riot rival spring whale hollow radar rule sentence';var valid = Mnemonic.isValid(code);// using a custom word listvar validCutom = Mnemonic.isValid(code, customWordlist); A mnemonic encodes entropy that can be used for creating a Continue reading >>

Ethereum Thieves Targeting Android Users With Fake Myetherwallet Apps

Ethereum Thieves Targeting Android Users With Fake Myetherwallet Apps

One consequence of the recent cryptocurrency craze is that people are increasingly more interested in downloading a wallet on their phones. But it seems scammers have found an opportunity to exploit this trend and are now actively seeking to dupe gullible Ethereum holders with malicious MyEtherWallet copycats on Google Play . Malware researcher Lukas Stefanko has taken to Twitter to warn users away from a malicious instance of the popular Ethereum wallet that is currently being distributed on Googles official mobile software platform. The researcher goes on to explain that once installed the shady copycat requires users to fill in their private key (or 12-word mnemonic phrase) to log in. For those curious, here is how the fake app looks like: There is fake @myetherwallet on Google Play that requires user's private key or mnemonic phrase to log in. BTW there isn't any official MyEtherWallet, yet. pic.twitter.com/6Nn1QFbhEJ Lukas Stefanko (@LukasStefanko) January 24, 2018 According to Google Play data, the malicious MyEtherWallet instance first made its way to the platform on January 18 last week. It has been downloaded between 100 and 500 times since then. Fortunately, a number of observant users have since pointed out that the app is malicious and seeking to phish your private keys. One particularly concerning detail is that the app seems to have stacked a relatively decent star rating standing at 3.8 stars at the time of writing, with more than 30 positive reviews. Whether it is the notoriously bad UX or the general lack of knowledge in the space, cryptocurrency has become especially popular with scammers recently. Indeed, earlier this week Ethereum founder Vitalik Buterin cautioned users to be extra careful if someone posing as him contacts them with requests to send Continue reading >>

Ethereum - Security And Wallets

Ethereum - Security And Wallets

Don't tell gavofyork or tomusdrw , but two days ago I robbed myself. Let me explain. Since mid 2015 I have been aware of Ethereum . I read up, felt that it was the future, and decided to invest some of my personal savings in the project (by proxy of their Ether token). Fast forward a year or so and rather than simply keeping 'in the know' as regards developments in the project I decided to dive deep and try and get to grips with some of the complexities of the project. Why? Simple. Double Negative (the company which I own and operate) has less on its plate, and we are considering building out web based applications that integrate with the Ethereum blockchain. Two days ago I stormed into the Parity Gitter shouting and screaming. I was being robbed ! Having read this thread on reddit the previous day, security was at the top of my list of 'things to investigate'. Talk about synchronicity.. All of a sudden I was being asked to sign a request for a transaction which I hadn't initiated through the Parity Wallet UI. Lets pause for a moment, and explain/outline in depth the totality of my post-resolution research. Then I will explain what had happened. Here we go.. NOTE I tried to make this as beginner accessible as possible, but the engineer in me got a bit out of hand. Apologies if it gets too technical. In the physical world you interface with a physical wallet. You put fiat cash into you wallet, and take it out when you want to spend some. In cryptocurrency land a wallet tends to refer to the platform through which you interface with your Ether. In that vein, the following are Ether wallets: MyEtherWallet - a web based wallet written in Javascript. Ethereum Wallet - the wallet software created by the Ethereum foundation. Parity Wallet - a web based wallet interface couple Continue reading >>

Ethereum-word-list/readme.md At Master Pirapira/ethereum-word-list Github

Ethereum-word-list/readme.md At Master Pirapira/ethereum-word-list Github

The interface / client / wrapper / holder that you use to manage your account(s). Example: MyEtherWallet.com, your Ledger Hardware Wallet, a Multisig Wallet Contract. A public & private keypair that "holds" your funds. Your funds are actually stored on the blockchain, not in the wallet or account. Just like your Reddit account has a username (public) and password (private), so does your Ethereum account. For additional security, you can use a password to encrypt your private key which would result in a username (public) and password (private) and password for that password (private + more secure). See the Keystore File section. In cryptography, you have a keypair: the public and private key. You can derive a public key from a private key, but cannot derive a private key from a public key. (Advanced) In Ethereum, the address "acts" like the public key, but it's not actually the public key. (Advanced) In Ethereum, the public key is derived from the private key and is 128 hex characters. You then take the "SHA3" (Keccak-256) hash of this (64 characters), take the last 40 characters, and prefix with 0x, give you your 42-character address. You use this to send funds from an account. The secret half of your Address / public key. ( Almost ) every string of 64 hexadecimal characters is a private key. If you hand-type a private key differently today than yesterday, you will access a different wallet. Never hand type your private key. This is the string you need to send from your account. Without it you cannot access your funds. Although, you don't need to save this raw, unencrypted private key in this format. You can saving the fancy versions of it (e.g. the Keystore File / Mnemonic Phrase). Example: afdfd9c3d2095ef696594f6cedcae59e72dcd697e2a7521b1578140422a4f890 Encrypted ver Continue reading >>

How Do I Restore From My 12 Word Phrase?

How Do I Restore From My 12 Word Phrase?

If you have access to your email and you know your password there is a much easier way to restore your assets using your one-click email restore . If you lost access to your email, you forgot your Exodus password, or your one-click email restore is not working, the only remaining option is to restore from your 12-word phrase as described below. Note that additional methods of invoking a 12-word restoration are available from the developer menu or from the lock screen . Downloadthe latest version of Exodus at www.exodus.io/releases/ Click therestore from backuplink on thePortfoliowelcome screen (shown in the picture below) Exodus will then restart and ask you to enter your 12-word phrase Type your 12-word phrase in order with one space between each word After a few seconds, Exodus will open with a popup "Your Recovery Worked!" Click OK and go do something else while Exodus finishes restoring your assets; this can take around 10 minutes to complete. When Exodus says "All Done! Your assets have been restored" your wallet is ready to use. Make sure to set a password on your newly restored wallet. See the video tutorial for instructions. Continue reading >>

Creating A Myetherwallet (mew)

Creating A Myetherwallet (mew)

The stronger the password the more protected from it being compromised from a potential hack. 2. You then download the private key to your computer. It will look like this: It's recommended that you create a secondary backup to an external drive such as a flash drive. Remember that you are now your own bank so creating backups of your password and private key are essential otherwise all funds will be lost. MEW will also make this clear once you have created your password for the first time. Now whenever you return to the MEW service in order to send/receive ETH or ETH related tokens, you'll go to 'send ether and token' at the top which will then bring you here Now there are some options to open your new wallet. The most common option is using the private key(UTC/JSON)that you just downloaded and backed up. You can use the private key option but I would Not use that method as it exposes your private key. Using a mnemonic phrase is an option also but also unsecure as the phrase is exposed when typing it in. Nano S and Trezor are hardware wallets are able to be purchased and are the most secure. These wallets will be covered in a later article. When selecting the Keystone file you're then asked for the password first created and you then unlock the wallet Now you can send/receive Ethereum and Ethereum related tokens. The address highlighted top left is your deposit address You now have your own private Ethereum wallet enjoy. Continue reading >>

Ether.cards

Ether.cards

Ether cards are 'physical ether'. They're a quick and convenient way to give ether, tokens, or other blockchain assets to friends and family, and a great way to introduce people to the power of the Ethereum blockchain. Load an Ether Card from any wallet that supports scanning QR codes. The card can be redeemed using MyCrypto, MyEtherWallet, or our own token sweeping tool. Each card has its own unique Ethereum address, printed on the back in QR code and text form, and a private key, hidden under a scratch-off panel. To use one, simply scan the code, deposit some Ether or tokens using your favourite wallet app, and give it to the lucky recipient. When they want to redeem it, they can scratch off the panel, and use their own wallet app to 'sweep' the funds into their newly created account. Each unscratched card's security is guaranteed by a smart contract . Ether cards are available for purchase now, with free worldwide shipping and a minimum order of just two cards. We're having slight stock issues at the moment - orders placed now should ship by January 12 Easily verify that you have a genuine Ether Card, and that a guarantee deposit has been paid on it. Step by step instructions on installing a wallet and claiming your ether. Go to www.mycrypto.com , and click "Send Ether". Under "Select the format of your private key", choose "Mnemonic Phrase". Enter the phrase on the back of your card, and click "Unlock". If your card has a QR code instead of a phrase, see the instructions for redeeming a classic ether card . When you click Unlock, you will be presented with a list of addresses and balances. The first address in the list (already selected) will match the one printed on the card. Click "Unlock". You will be shown information about your Ether Card account, including ac Continue reading >>

Bip39 - Mnemonic Code

Bip39 - Mnemonic Code

BIP44 Multi-Account Hierarchy for Deterministic Wallets BIP49 Derivation scheme for P2WPKH-nested-in-P2SH based accounts Use private keys at brainwallet.org . Be careful - it can be easy to make mistakes if you don't know what you're doing. Entropy values should not include the BIP39 checksum. This is automatically added by the tool. Entropy values must be sourced from a strong source of randomness . This means flipping a fair coin, rolling a fair dice, noise measurements etc. Do NOT use phrases from books, lyrics from songs, your birthday or street address, keyboard mashing, or anything you think is random, because chances are overwhelming it isn't random enough for the needs of this tool. Storing entropy (such as keeping a deck of cards in a specific shuffled order) is unreliable compared to storing a mnemonic. Instead of storing entropy, store the mnemonic generated from the entropy. Steganography may be beneficial when storing the mnemonic. The random mnemonic generator on this page uses a cryptographically secure random number generator . The built in random generator can generally be trusted more than your own intuition about randomness. If cryptographic randomness isn't available in your browser, this page will show a warning and the generate button will not work. In that case you might choose to use your own source of entropy. Please refer to the software license for more detail. The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in co Continue reading >>

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