как создать и какой выбрать. Как майнить биткоины на домашнем компьютере – все хитрости и полезные советы Биткоин счет и кошелек создать

Bitcoin вновь на подъеме! Так что вопрос создания биткоин-кошелька сейчас актуален для очень многих, и сегодня мы будем в нем разбираться. Очень и очень тщательно.
Тем более, что кошельки для всех других криптовалют работают точно также. Зачем — читайте здесь!

Как зарегистрировать Биткоин кошелек и пополнить его баланс. Смотрите видео инструкцию.

• Ссылка на регистрацию кошелька: https://www.blockchain.com
• Ссылка на электронный обменник: https://www.bestchange.net/?p=20887

Что такое кошельки для Биткоина и как они работают (простыми словами)

Фактически, кошелек — это всего лишь механизм хранения приватного ключа к вашему адресу биткоина
(так в блокчейне называется аналог счета).

• Дело в том, что приватный ключ — это, грубо говоря, “пароль”
  
  , позволяющий управлять средствами на вашем адресе биткоина. Потеря приватного ключа означает потерю средств на адресе, без всякой надежды на восстановление доступа к ним.
• Приватный ключ используется для генерации публичного ключа (их для каждого адреса может быть множество), который прилагается к транзакции в качестве подтверждения права на владение переводимыми средствами. При этом обратная операция — вычисление приватный ключ из публичного — невозможна даже теоретически.
• Так что задача кошелька сводится к безопасному и удобному хранению приватного ключа и обеспечению доступа к нему, а также генерации публичных ключей.

Виды Bitcoin-кошельков

ВАЖНО!

На сегодняшний день на рынке предлагается огромное множество самых разных BTC кошельков на любой вкус. Очень полезно узнать какие есть году. Самое важное, впрочем, что нужно усвоить новичку — это различия между “холодными”
и “горячими” кошельками
.

1. “Горячие” кошельки требуют постоянного (по возмозможности), разумеется, соединения с Интернетом. Большинство кошельков: устанавливаемые на компьютер программы, приложения для смартфонов и веб-версии — именно “горячие”. Такие кошельки удобны и позволяют быстро провести транзакцию в любой момент, но они менее безопасны, чем “холодные” кошельки, так как заражение устройства вирусами может дать злоумышленникам доступ к вашим средствам.
2. “Холодные” кошельки соединения с интернетом не имеют и подключаются только когда возникает необходимость провести транзакцию. Чаще всего они относятся к так называемым аппаратным кошелькам — специально разработанным для хранения ключей устройствам — но встречаются и более “экзотические” решения: от бумажки с распечатанным QR-кодом ключа до отключенного от интернета компьютера с установленным “обычным” кошельком. “Холодные” кошельки существенно более безопасны (подключения к интернету они не имеют чисто физически), но менее удобны, чем “горячие”.

Как завести любой из наиболее популярных вариантов биткоин-кошелька:

• Бумажный кошелек
• Аппаратный кошелек
• BTC-кошелек онлайн
• Мобильное приложение
• Десктопный кошелек

Мы не будем рассматривать “создание кошелька” на одной из . Чтобы не говорили владельцы торговых площадок, счет на бирже биткоин-кошельком не является — вы не получаете ни приватного, ни публичного ключа, а все монеты на вашем балансе де-факто принадлежат бирже.

Создание бумажного биткоин-кошелька (инструкция)

Несмотря на всю “архаичность” бумажного носителя в цифровой век, создать бумажный биткоин-кошелек едва ли не проще, чем любой другой. Для этого вам нужно;

1. Зайти на сайт одного из сервисов, предлагающих программу для создания бумажных кошельков. Например,
   Walletgenerator.net
   .
2. Скачать предлагаемый сервисом архив. Онлайн-генерацией, несмотря на ее удобство, лучше не пользоваться по соображениям безопасности.
3. Отключиться от интернета, распаковать архив и запустить html-файл из него.
4. Нажать на кнопку “Get New Address” и хаотично водить по экрану мышкой во время работы генератора случайных чисел.
5. Распечатать полученный документ с двумя QR-кодами. Слева — публичный ключ, справа — приватный.

Использование аппаратного кошелька

Первый шаг, разумеется — приобретение самого аппаратного кошелька
. На рынке их сегодня великое множество, но все они, в общем-то, внешне напоминают привычную “флешку”, пусть и с небольшим экраном. Интерфейс у всех кошельков также похож и отличия сугубо косметические.

В качестве примера мы используем один из наиболее популярных аппаратных кошельков на рынке — Trezor Model T. Вот такой:

1. 1. Для создания кошелька необходимо подключить его с помощью USB-кабеля к компьютеру или смартфону и зайти на веб-страницу
      trezor.io/start
      .
   2. Далее вам нужно выбрать модель вашего кошелька.
   3. И вашу операционную систему — сайт предложит вам скачать драйвер, обеспечивающий работу с кошельком.
   4. После этого кошелек скачает с сайта последнюю версию прошивки. Благодаря этому обеспечивается гарантия того, что вы — первый пользователь кошелька, а на самом кошельке используется наиболее совершенная и аутентичная версия ПО.
   5. После установки прошивки вам предложат восстановить старый кошелек из seed-фразы либо создать новый. Нас, разумеется, интересует второй вариант. Далее необходимо создать резервную копию (бэкап) кошелька.
   6. Бэкап
      — это случайно созданная мнемоническая фраза (она же seed-фраза) из 12 слов, в которой зашифровано 128-битное число, используемое для генерации всех приватных ключей для всех валют в данном кошельке. С помощью этой фразы вы можете “перенести” все свои средства на любой другой кошелек, поддерживающий стандарт BIP39.
   7. Фраза будет показана на экране кошелька 3 “порциями” по 4 слова. Запишите ее (в комплекте к кошельку идут специальные карты из водостойкой бумаги, но вы можете использовать что угодно) и храните в надежном месте. Показана эта фраза будет только один раз и никакой возможность восстановить ее нет. Впрочем, чтобы убедиться в том, что вы записали seed-фразу верно, сразу после ее генерации устройство попросит вас ввести 2 случайных слова из нее (например, третье и седьмое).
   8. После этого останется лишь дать своему кошельку название и защитить его PIN-кодом от посторонних. Максимальная длина кода — 9 цифр, причем имейте в виду — кнопки с цифрами каждый раз случайно перемешиваются, чтобы никто не мог подсмотреть, что вы вводите:

BTC-кошелек онлайн

Веб-версии кошельков биткоин, пожалуй, популярнее всех остальных вместе взятых благодаря своему удобству. В то же время, онлайн-кошелек — наименее безопасная из всех опций. Строго говоря, в большинстве случаев вы получите только публичный ключ, а приватный останется у сервиса. Впрочем, если кошелек вам требуется для разовой транзакции или использования небольших сумм — почему бы и нет?

В рунете наиболее популярный веб-кошелек — blockchain.info
.

• Для создания нового кошелька достаточно зайти на
  эту
  страницу и нажать кнопку “Регистрация”.
• Далее необходимо ввести свой адрес электронной почты и пароль.
• На этот ящик придет ссылка, по которой необходимо перейти для того, чтобы подтвердить регистрацию, а также ваш ID, который нужно сохранить в надежном месте — он используется для входа в кошелек.
• После этого кошелек, в общем-то, готов к работе, но лучше будет все же перейти в центр безопасности в личном кабинете и воспользоваться им.
• Как минимум, стоит сгенерировать seed-фразу и включить двухфакторную авторизацию.

Seed-фраза создается аналогично аппаратным кошелькам, пусть слова и выводятся прямо на экран браузера. По завершению генерации вас попросят ввести четыре случайно выбранных слова для подтверждения.

• Для двухфакторной аутентификации нужно привязать номер мобильного к кошельку, выбрав соответствующий пункт в личном кабинете:
• На этот номер придет SMS с кодом, который нужно ввести для подтверждения. Затем можно перейти в следующий пункт — “Активировать двухшаговую верификацию” и выбрать опцию “Использовать номер мобильного телефона”. После этого при каждом входе в аккаунт вам будет приходить SMS с кодом, который необходимо будет ввести помимо пароля.

Альтернативный вариант — приложение Google Authenticator или Yubikey
, которое должно быть установлено на вашем смартфоне.
Кошелек

90000 How to Create a Bitcoin Wallet — 90001
90002 What is a wallet and why you need one 90003
90004 A bitcoin wallet is a piece of software that contains the «keys» and the address that allows you to send and receive bitcoins. 90005
90004 In the same way that Paypal uses an email address, the bitcoin protocol uses an address like 90007 1JArS6jzE3AJ9sZ3aFij1BmTcpFGgN86hA 90008 extracted from the public keys stored in your wallet. 90005
90004 In this article we’ll show you the main types of wallets and how to create one step by step with blockchain.info. 90005
90004 Have you ever wondered how to step in into the bitcoin world? 90005
90004 You are in the right place. 90005
90004 Let’s go. 90005
90002 Types of Bitcoin Wallet 90003
90004 Generally speaking, there are four types of bitcoin wallet: 90005
90022 1. Web 90023
90004 The most used and the easiest to set up. 90005
90004 It’s accesible through your web browser and it’s stored in the servers of the service provider. 90005
90004 It works in the same way as typical email clients, like Gmail or Yahoo.90005
90022 2. Desktop 90023
90004 They are installed on your computer and allow you to fully control the wallet because private keys are stored locally. 90005
90004 There are two types: 90005
90004 Full Clients, which download the entire blockchain and Lightweight Clients, that store the private keys locally but they do not download the entire blockchain, accessing to it through proxy servers. 90005
90022 3. Mobile 90023
90004 They can work as Full Clients, Lightweight Clients or Web Clients.90005
90004 Some of them are cross-platform, linked with web or desktop clients, sharing the same source of bitcoins. 90005
90022 4. Hardware 90023
90004 As pendrives, paper wallets or some other device types. 90005
90002 How to Create a Bitcoin Wallet with Blockchain 90003
90004 The easiest and fastest way to get started in the bitcoin world is by creating a web wallet. 90005
90004 There are several well proven providers as Coinbase or Blockchain. 90005
90004 In this guide we will use the blockchain wallet due to its ease of use, simplicity and popularity.90005
90022 Creating the Wallet 90023
90004 Go to blockchain.info and press «Create Wallet». 90005
90004 You will be asked for an email address that will be used to verify your identity each time you try to open your wallet (optional) and a password. 90005
90004 It’s important to use a password as strong as you can think of with more than 10 characters, low and uppercase letters, numbers and symbols. 90005
90004 When finished, you will be asked to write and store a phrase that will be used to get access to your wallet if you forget your password.90005
90004 This is important because there is no way to recover it if you lose your password. 90005
90004 90005
90022 Accessing the wallet 90023
90004 Once created and verified through the confirmation email, you are set to open it and start operating with bitcoins. 90005
90004 To do it you have to introduce the identifier included in the mail and the password. 90005

90004 Once inside you will see the control panel of your wallet from which you can access your transaction history, the options for sending and receiving bitcoins, the account settings and several options for backing up your wallet, something terribly important (link to article).90005
90004 90005
90022 Receiving money 90023
90004 The first thing to do to receive bitcoins in your wallet is to know which your address is. 90005
90004 You can see it in the control panel of your wallet as a QR or as an alphanumeric code. 90005
90004 Share it so people can send you money through it. 90005
90004 90005
90022 Sending money 90023
90004 To send bitcoins you must click on the option and indicate the direction to which you want to send them and the amount. 90005
90022 Transaction History 90023
90004 You can view the transaction history and its details by clicking on «My Transactions».90005
90004 Here you will see the pair of adresses, the date on which the operation was performed, the amount sent / received and the number of confirmations. 90005
90004 That’s it. 90005
90004 You already have the main tool that lets you step into the bitcoin world. 90005
90004 Click here to see how buy and sell bitcoins. 90005

90002 About commissions, confirmations and thieves 90003
90004 Although compared to the traditional banking system operations bitcoins are much cheaper, faster and safer, that do not make them free, instant or impossible to intercept.90005
90022 Commissions 90023
90004 When sending bitcoins you will see that the amount received is slightly smaller than the amount sent. 90005
90004 These fees are the incentive for miners to provide computing power to the bitcoin network and keep the system running. 90005
90004 You can adjust the commission when making shipping but keep in mind that if it’s very low, the transaction will take longer to be confirmed. 90005
90022 Confirmations 90023
90004 To avoid fraud, transactions in the bitcoin protocol must be confirmed by the network.90005
90004 The system is designed so that each block of transactions is mined in about 10 minutes. 90005
90004 Click here to learn more about this. 90005
90022 Security 90023
90004 Both the bitcoin protocol and the majority of wallets are equipped with security layers that prevent your money is accessible to «foreign friends» with ease. 90005
90004 However, no system is perfect. 90005
90004 Click here to learn how to protect your bitcoins to make it difficult for those who want to steal you.90005
90002 Other ways to store your bitcoins 90003
90004 You do not usually carry 3.000 $ in your pocket, right? Due to the same reasons you do not do this, the same applies to bitcoin. 90005
90004 You should not store all your bitcoins in the same place. 90005
90004 Luckily, there are several ways to do this and most of them free or at a low cost. 90005
90004 Two of the most common are: 90005
90144
90145 90007 Cold Storage: 90008 Cold storage refers to keep your bitcoins offline. This can be done in different ways (link to knowledge base), as in servers disconnected from the network, USB flash drives or paper wallets.90148
90145 90007 Creating other wallets: 90008 You can create as many wallets as you want and store in them the bitcoins you have. A common practice is to deposit a certain amount in the wallet more used to operate and leave the bulk of your bitcoins in another. 90148
90153
90004 90007 And you? 90008 90005
90004 90007 How do you manage your bitcoin wallets? 90008 90005
.90000 Where and how to create a bitcoin wallet 90001

90002
90003 Details 90004
90005
Created: Friday, 31 August 2018 2:35 90006
90007

90008 90009 If you have already asked yourself such a question «how to create a bitcoin purse», you have already heard about crypto-currencies and Bitcoin. Here we will not go into the technical details of the work of blockchain technology, but just look at the types of bitcoin wallets and how to install them on a computer or mobile phone.First of all, when choosing a bitcoin wallet, you need to select a reliable source for downloading the installer. One of these sites is Bitcoin.org, which presents a lot of different bitcoins of wallets, which you can install without fear for the reliability of storing your crypto currency. 90010

90008 Before creating a bitcoin purse, you need to determine the device on which you will store your BTC. The following options are available for you to choose: 90010
90013
90014 On paper (storage of a private key) 90015
90014 Hardware Wallets 90015
90014 Computer or laptop 90015
90014 Mobile phone 90015
90014 Web Wallets 90015
90024
90008 This list was compiled with a decrease in the reliability of the storage of the crypto currency.The most reliable bitcoin wallets are considered specialized hardware devices with encryption function access to which is maximally protected from outsiders, as well as storing private keys on paper. Next comes a personal computer, which itself is susceptible to hacking, especially from users who are not involved in additional security measures. When you perform the necessary measures from hacking your computer, the reliability of creating a bitcoin of a purse on a personal computer will be no worse than a hardware wallets.90010
90008 Mobile wallets can also be considered as a platform for creating your wallet, however, due to more frequent hacking of phones and less reliable software for wallets, we do not recommend that you keep on your mobile wallet a significant amount in the crypto currency. 90010
90008 90010
90008 Web wallets are probably the most convenient way to store cryptlayut, but the most not secure, because. to crack your wallet a hacker does not need access to your devices directly and often there are such cases that the Internet bitcoin wallets are hacked not because of losing the password, but they hack at once the entire server where the web purse is located, thus gaining access to all the cryptocurrency, which is stored there.90010
90008 Let’s consider all these options in more detail. 90010
90035 On paper (storage of a private key) 90036
90008 90038 Wallet bitcoin is a program that stores an encrypted private key, through which you can access the bitcoins stored there anywhere in the world. With the help of a special command, bitcoin wallet can give you your private key, which you can print on paper and store in an inaccessible place, for example, in a safe or in a bank cell. Knowing this key you do not need access to a computer or a program with which you have received it and the more you do not need to know the passwords to these devices.The private key is all you need, you will only need to import the private key into a new bitcoin wallet and your bitcoins will be available to you again for translation. 90010
90008 For more secure storage of private keys, there are special protected from water, fire, radiation devices, for example, Billfodl. 90010
90008 The storage of a private key from the Bitcoin electronic wallet on media not connected to the Internet can be called the most secure way of storage. Use this method of storing bitcoins is recommended if you do not plan any operations with your bitcoins for a long time.With the active use of crypto currency this method is clearly not suitable for you. 90010
90035 90045 90036
90035 Hardware bitcoin wallets 90036
90008 90038 As we have already mentioned, this is one of the most reliable way to store your bitcoins, but it is also the most expensive way. on some modern well-protected models of hardware wallets the price can reach up to $ 100 or more 90010
90008 90053 90010
90008 Advantages of hardware bitcoin wallets: 90010
90008 A separate device not connected to the Internet 90038 All data on the wallet is encrypted with a built-in chip 90038 Access to wallet data by pin code 90038 To gain access to the bitcoins stored on the hardware wallet, you first need to get this device and know the pin-code to it, i.e. through the Internet, hacking bitcoins with such purses is completely excluded. 90010
90008 List of companies that produce hardware wallets for storage of bitcoin: 90010

90008 It should be noted that some devices other than Bitcoin can store other crypto-currencies. 90010
90008 To find out your address on the hardware wallet, use the instruction to the purchased equipment. 90010
90035 Bitcoin wallet on a computer or laptop 90036
90008 For computers, there are two types of bitcoin wallet: 90010
90008 90073 90010
90075
90014 A full-fledged client (Bitcoin Core) is the main program for working with the Bitcoin network, supports all available functionality.To work, you need to download a large (about 200GB) blockchain, which can take more than a month. It is used mainly for professional use on mining pools, exchanges and other services and for long-term storage of bitcoins. 90015
90014 Light clients — developed programs based on Bitcoin Core specifically to simplify the work with Bitcoin, which do not require a long download of the network and have a simple user interface. If you are not going to engage in bitcoin professionally, we recommend you to choose one of the options for light wallets.90015
90080
90008 The most famous of the light wallets are Bither and Electrum, existing under all types of operating systems (Windows, Linux, Mac OS). You can also choose any purse from the list on the Bitcoin.org website. 90010
90008 90084 90010
90008 There are also multi-currency wallets, where except Bitcoin you can store other crypto-currencies, but such solutions are usually less secure. 90010
90035 Bitcoin wallet for mobile phones (Android, iOS) 90036
90008 90038 For mobile devices, there are two options, this is a full-fledged application similar to the light wallets on computers and applications linked to WEB wallets, i.e. bitcoins in the second case will be stored on a third-party server, not on your mobile phone. 90010
90008 The most popular programs for smartphones: 90010
90075
90014 Bitcoin Wallet, 90015
90014 Bither 90015
90014 Electrum 90015
90080
90008 90038 As well as for personal computers, for mobile devices there are multicurrency software solutions that allow storing several crypto-currencies in one application. 90010
90008 We do not recommend storing large amounts on mobile wallets, because mobile phones are more likely to be hacked, stolen or lost.90010
90035 Bitcoin WEB Wallets 90036
90008 90038 Bitcoin WEB wallets are probably the most convenient way to store your crypto currency, but because of the high number of risks of their theft, this method is not suitable for long-term storage of a significant number of bitcoins. 90010
90008 If you are just starting to learn crypto currency and do not plan to store large amounts in crypto currency, we recommend that you choose the WEB purse. The most popular now is the site blockchain.com. 90010
90008 90116 90010
90008 To receive your crypto-currency wallet, click on the button «GET A FREE WALLET». The further registration procedure will differ little from the standard one, unless you forget to include two-factor authentication at registration. This will allow you to maximally protect your savings in the crypto currency. 90010
90008 With the help of Blockchain.com you can create three wallets for bitcoin, ethereum and bitcoin cache. Also, this service offers to install their applications on mobile phones for more convenient access to your savings.90010
90008 90123 90010
90035 90036

.90000 How to set up an Electrum Bitcoin wallet 90001
90002 90003 90002 You’ll need this 90003 90002 90007 Electrum 90008 You can get hold of the free software here. 90003 90002 Bitcoin has gone from being the province of a few bored programmers to a major investment tool. While a single Bitcoin was worth around $ 1,000 in January last year, today it’s worth well over 10 times that amount. The prevalence of online exchanges such as CoinBase and Bitstamp have also made it easy for even non IT-literate people to cash in on the crypto-craze.90003 90002 As a virtual currency, Bitcoin is vulnerable to hackers, which is why anyone interested in investing must have a secure software «wallet» to keep their funds safe. Electrum, which has been around since 2011, is a remarkably powerful and free client for Bitcoin. Not only is the software extremely easy to set up, but it uses powerful encryption to keep your wallet files safe. Electrum also supports creation of a special «seed» of 12 random dictionary words, which you can use to restore your Bitcoins if anything happens to your computer.The simple interface, which is written in Python, can be mastered in a few minutes. If you need to check your balance on another machine, Electrum can also load «watching» wallets, which can display your balance but not make payments. 90003 90002 90003 90016 Download and install Electrum 90017 90002 To begin, follow this link. Click «Windows Installer,» then choose to «Run» the file if you’re using Microsoft Edge. The Electrum installer now launches. Click «Next» to choose the default install location in C: \ Program Files.Once installation is complete, double-click the Electrum icon on your desktop. Electrum now asks where you wish to store your wallet file. Either click «Next» to save the wallet to the default location (C: \ Users \ yourusername \ AppData \ Roaming \ Electrum \ wallets), or click «Choose» to select a different location. Click «Next» when you’re done (see above image). 90003 90002 90003 90016 Choose wallet and seed type 90017 90002 Electrum supports various types of Bitcoin wallets. If this is your first time using wallet software, leave the «Standard Wallet» option checked here, and click «Next» (see image above).You can create other types of wallets later if you wish. Click «Next» once again to create a new wallet «seed.» Click «Next» again to choose a «standard» seed type. Electrum now displays your wallet generation seed. These 12 words can be used to restore your wallet if anything happens to your computer. Make sure you write these down and keep them in a safe place. 90003 90002 90003 90016 Generate seed and encrypt wallet 90017 90002 Once you’ve written down your wallet seed, click «Next» to continue.Electrum asks you to retype the seed in the following window to be sure you’ve noted it down correctly (image above). Click «Next» to continue. You can now set up a password to encrypt the wallet file you created earlier. This is optional, but strongly recommended, because without it, anyone with access to your computer can spend your Bitcoins. Enter the password twice, then click «Next» to continue. Electrum now starts generating your payment addresses. 90003 90002 90003 90016 Receive Bitcoins 90017 90002 Once Electrum starts, you’ll see your transaction history, which is blank, as you’re using a new wallet.Click the «Receive» tab to view your payment address. If you plan to receive funds from more than one source, considering adding a «Description,» and click «Save» (above image). Click «New» to create as many payment addresses as you like. You can use these to receive funds. If you do not have any Bitcoins, use an online exchange such as Bitstamp to buy some. 90003 90002 90003 90016 A few tweaks 90017 90002 While you’re waiting for your funds to arrive, you can be productive and tweak the Electrum interface.By default, balances are displayed in mBTC (millibitcoin). This can be confusing when requesting amounts in BTC. Select the «Tools» menu, then «Preferences.» Click the «Appearance» tab, and choose the «Base Unit» drop-down menu to switch to BTC. While you’re here, select the «Fiat» tab, too (above image). Select your «Fiat Currency» to see your balance in BTC and Fiat at the bottom-left of the Electrum window. 90003 90002 90003 90002 It’s virtually impossible to memorize Bitcoin payment addresses.Fortunately, Electrum enables you to store the addresses of those to whom you send funds regularly. To get started, click the «View» menu, and choose «Show Contacts.» Click the new «Contacts» tab (see above image), then right-click anywhere to create a «New Contact.» Fill in the «Address» and «Name,» then click «OK» to save. If you want to send funds to these addresses, just type the first few letters of the recipient’s name in the «Pay to» field. 90003 90002 90003 90016 Send BTC 90017 90002 Click the «History» tab to check the status of your received funds.If they’ve been successfully confirmed, you’ll see a green check mark next to the payment date. If you’re ready to spend your Bitcoins, select the «Send» tab (see image above). The fields here are fairly self-explanatory. Enter the recipient payment address in the «Pay To» field. You can also add a payment «Description» if you wish, for your own records. Enter the payment amount either in BTC or your chosen Fiat currency-for example, $ 1,500. The fee slider determines the transaction fee you’re willing to pay.Generally speaking, the higher this is, the faster your payment is received. Click «Send» when you’re sure you want to proceed. Electrum asks you to confirm the payment amount and mining fee before payment is sent. Click «Yes» to continue. 90003 90002 90003 90016 In case of emergency 90017 90002 If anything happens to your machine, you can still access your coins on another machine using Electrum. Click here and install Electrum as described in step 1. On the «Create Wallet» screen, click «Next» to choose a standard wallet, as before.When you come to the «Keystore» screen, choose «I already have a seed.» Click «Next,» then enter the seed you wrote down earlier (see image above). Click «Next» to restore your wallet. Repeat steps 5 and 6 to display your balance in your chosen currency and restore your contacts. 90003 90002 90003 90016 Watching wallet 90017 90002 If you’re concerned about the safety of your Bitcoins, consider setting up a watching wallet. When run in this mode, Electrum displays your current balance and allows you to receive payments, but you can not spend your coins.This is perfect for installing Electrum on a machine you do not own, such as one in your college or workplace. 90003 90002 Begin by clicking on the «Wallet» menu option, then «Information.» Follow the instructions in step 1 to install Electrum on a new machine. When you come to the «Keystore» screen, choose «Use public or private keys.» Paste the master public key you copied earlier into the box, and click «Next.» Electrum alerts you that this is a watching only wallet, which can not send payments by itself.Electrum also supports «cold storage» mode. 90003 90002 This involves setting up two wallets-a watching wallet and an offline wallet on a separate machine. If you need to spend BTC, you can generate and save a transaction file, which can be signed digitally by the offline wallet. Needless to say, this is only for the most paranoid users. You can find further help with this at this link. 90003 90002 90071 This article was originally published in 90072 90073 90071 Maximum PC issue 150 90072 90076 90071.For more quality articles about all things PC hardware, you can 90072 90073 90071 subscribe to Maximum PC 90072 90076 90071 now. 90072 90003

.90000 How to set up a secure offline savings wallet 90001

90002 Modern operating systems are highly complexity, leading to a large attack surface. They also constantly leak information without the user’s knowledge or consent.
90003 90002 No matter how many precautions you take, it is very hard to ensure your wallets is reasonably secure on an Internet connected computer.
90003 90002 Because Bitcoins can be stored directly on your computer and because they are real money, the motivation for sophisticated and targeted attacks against your system is very high.Previously, only large organizations had to worry about advanced attacks.
90003

90002 The bitcoin ecosystem is still relatively young and unfortunately not many user friendly and highly secure wallets have been developed yet.
90003 90002 Today these are the two best ways to secure your bitcoins against theft:
90003 90002 1. Using a hardware wallet such as TREZOR.
90003 90002 A hardware wallet has two functions — it stores your Bitcoins in a hardened device that is designed to be simple and highly resistant to the usual range of attacks (viruses, hackers, keyloggers).90003 90002 2. Create a cold storage wallet using BitKey.
90003 90002 Cold storage wallets generates and stores private wallet keys on a clean air-gapped computer.
90003 90002 Used correctly, an air-gapped wallet is safe from all online threats, such as viruses and hackers. It is however still exposed to offline threats, such as hardware keyloggers, extortion, or people looking over your shoulder.
90003 90002 To spend funds from cold storage securely, an unsigned transaction is generated on an Internet connected computer.An unsigned transaction is akin to to an unsigned check. The unsigned transaction is then transfered to the air-gapped computer to be verified & signed with the wallet keys.
90003 90002 Using a cold storage wallet on an air-gapped computer may seem tedious, but remember that security almost always comes at the cost of convenience.
90003
90026 Security warning 90027
90002 When you deposit money at a bank, you let them worry about security. Bitcoins, however, are stored on 90029 your 90030 computer and that means 90029 you 90030 are fully responsible for securing them.90003 90002 Unfortunately, most people are not security experts, which means it’s very hard for them to fully understand the risks. They usually do not. This increases the risk of making a fatal mistake that will result in Bitcoin theft.
90003 90002 For example, paper wallets are typically generated by potentially compromised PCs connected to the Internet, then printed for offline storage. This is not enough as malware running on the computer may steal your private keys and then later steal any Bitcoin you send to that address.Many Internet connected printers also save printed documents to memory.
90003

90002 There used to be no other way to setup an offline wallet than to do it from scratch. Today there are solutions such as BitKey that can help simplify the process.
90003 90002 If you’re still interested in doing things the hard way, the rest of this guide will instruct you on how to create an offline wallet by hand.
90003
90026 How to Deposit Funds 90027
90044 90045 Sign up for a few different cloud drive accounts such as Dropbox or Google drive.90046
90045 Create a strong and unique passphrase offline (manually). This passphrase should be TRUELY random. Diceware is a good way of generating the passphrase. It should be at least 12 words long. 90046
90045 Never use this passphrase elsewhere, especially not on the web. 90046
90045 90029 Do not forget this passphrase 90030. Recite it several times a day. It is easy to overestimate your ability to remember a passphrase several months in the future. To be on the safe side, write it down and store the piece of paper in a safe deposit box.90046
90045 Download Bitcoin-Core Linux binary and save it on a USB drive. 90046
90045 90029 Verify 90030 the software’s release signatures from an alternative device and internet connection (eg. Your smartphone). This makes sure you are not using a malicious program that poses as the bona fide bitcoin-core client. 90046
90045 Shut down your computer, and boot Ubuntu (or Linux distribution of you choice) from a liveCD. This will not affect your current operating system. 90046
90045 90029 Disconnect machine from the internet 90030.Unplug any network cables and disable wireless. Verify that wireless is disabled in the icon on the upper right corner (Ubuntu). Double check that machine is disconnected by opening the web browser. 90046
90045 Run bitcoin while disconnected to the internet. The client will show 0 connections and 0 blocks, but it will still generate a wallet.dat file and a bitcoin address. 90046
90045 Encrypt your wallet using the strong and unique password from step 2 above. (Bitcoin Client> Settings> Encrypt wallet) 90046
90045 Copy wallet.dat (found in hidden folder .bitcoin in your home directory) to USB drive. 90046
90045 Save bitcoin address to a text file and copy it to USB drive. 90046
90045 Shut down system and turn off computer. Before switching your computer on again, remove all power sources for about 1 minute. Physically remove battery from laptop. 90046
90045 Backup encrypted wallet.dat file in several places:
90078 90045 Send it to your 5 best friends by email attachment and ask them to save it for you. 90046
90045 Save it on your cloud drive accounts created in step 1.90046
90045 Save it on several USB drives and CDs and store them in different geographic locations. 90046 90085 90046
90045 Send bitcoins to the address saved on the USB drive. Double check in the block explorer that they have been sent or you can add Watch Bitcoin Address in BlockChain Wallet. 90046 90089
90026 How to Retrieve Funds 90027
90044 90045 Boot from Ubuntu liveCD, as in step 5 above. 90046
90045 Insert USB drive. 90046
90045 Run bitcoin client and close it again. 90046
90045 Replace wallet.dat in ~ / .bitcoin directory with wallet.dat from USB drive. 90046
90045 Connect to the internet. 90046
90045 Restart bitcoin client. 90046
90045 Wait for blocks to download (optional). 90046
90045 Send bitcoins. 90046 90089
90026 How to Setup Watch Bitcoin Address 90027
90002 Watch Bitcoin address is a way for you to check your cold storage balance online without exposing your private key.
90003
90044 90045 Create an wallet account at https://blockchain.info/wallet/ 90046
90045 Go to import / export.90046
90045 At «Add Watch Only Bitcoin Address», add your bitcoin address. 90046
90045 Wait for the balance to synch. 90046
90045 You can also download the mobile version at Google Play, Apple Store 90046 90089
90026 Notes 90027
90078 90045 This procedure is only secure if you perform steps 1-15 in this 90029 exact order 90030. 90046 90085
90078 90045 Perform one or two trial runs of the above procedure with a few bitcents, and make sure that you know how to successfully retrieve them, before making a bulk transfer.90046 90085
90078 90045 Every time you retrieve bitcoins from your savings wallet, create a fresh savings wallet by repeating the above procedure, and send all your remaining savings balance there. 90046 90085
90078 90045 There is more than one way to do it. Similar procedures have been suggested on the forums here and here. 90046 90085
90078 90045 Beware that even savings wallets have limited lifetimes. New, backwards incompatible versions of bitcoin might come out in future, AES might be broken, bit rot might destroy your wallets, etc.Pay attention to updates in the Bitcoin world and update to fresh savings wallets every couple of years, or as needed. 90046 90085

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