fun generateKeyPair(keyStoreAlias: String): KeyPair? { val specBuilder: KeyGenParameterSpec.Builder = KeyGenParameterSpec.Builder(keyStoreAlias, KeyProperties.PURPOSE_SIGN) .setAlgorithmParameterSpec(ECGenParameterSpec(EC_KEY_SPEC)) .setDigests( KeyProperties.DIGEST_SHA256, KeyProperties.DIGEST_SHA384, KeyProperties.DIGEST_SHA512 ...I used the following Code to create the signer. I used my 'mnemonic' instead of the private key: const wallet = ethers.Wallet.fromMnemonic(mnemonic); I noticed that pancake uses the swapExactETHForTokens() function instead of swapExactTokensForTokens() for the transactions. Does that make any difference?Jun 8, 2022 · 1. This short article shows command lines to generate a key pair in PEM format and a JWK representing a self-signed certificate for the key pair with the x5c claim. 1. Create a private key. openssl genpkey -algorithm EC -pkeyopt ec_paramgen_curve:P-256 > private_key.pem. NOTE: Be sure that openssl is from OpenSSL, not LibreSSL. Jul 18, 2023 · Click the account selector at the top of your wallet. Click 'Add account'. Enter your preferred name and then hit 'Create' to confirm. As mentioned above, created accounts are permanent and cannot be removed. They are associated with your Secret Recovery Phrase from the point of creation onwards. Jul 19, 2023 · Click on the account selector at the top of your screen. Click the three vertical dots next to the account you want to export. On the 'Account details' page, click 'Show private key'. Enter your wallet password and click 'Confirm' to display your private key. Click to copy the private key to your clipboard. Make sure to save it somewhere safe. The first part Mnemonic > Private Key is optional, but used in Metamask and all wallets where you have "secret recovery phrases" i.e. mnemonics. You can also start off with a private key, skipping the first step. These steps are "deterministic", meaning if you start with the same mnemonic (e.g. 12 word recovery phrase) you end up calculating ... Metamask doesn't expose private keys as it's a huge security issue. You shouldn't expect users to expose their private keys either. If you want to sign a transaction or arbitrary data, you can use the Metamask RPC methods. You can find the methods here. With this, you can perform data signing, encryption-decryption with the private keys, in a ...When dealing with cryptocurrencies or crypto-assets such as Ether and ERC-20 tokens, it is crucial to always be aware of and have your private keys, mnemonic phrases, and passwords backed up in case the unexpected occurs. For more on seed phrases and your MetaMask Secret Recovery Phrase, see here.1. This short article shows command lines to generate a key pair in PEM format and a JWK representing a self-signed certificate for the key pair with the x5c claim. 1. Create a private key. openssl genpkey -algorithm EC -pkeyopt ec_paramgen_curve:P-256 > private_key.pem. NOTE: Be sure that openssl is from OpenSSL, not LibreSSL.Then, each time you access them with private keys, your transaction is recorded on the digital ledger. Seed phrase as your wallet restoration point. After clicking on the “Create a Wallet,” you will be asked to create a password for the MetaMask app itself. The most important part comes after when you are asked to create a backup phrase.Dec 16, 2022 · Create a New Wallet in MetaMask. In this section, you are going to create a new wallet in the MetaMask Android app using the wallet's default methods.To create a new wallet with a new seed phrase in MetaMask: Open the MetaMask extension and tap on `Get Started`. This will bring you to the `Wallet Setup` screen. Apr 22, 2020 · To generate private keys from 12-word mnemonic phrases, you need a derivation path (a string) as specified in BIP-0049. Derivation paths used in the field: m/44'/1001'/0'/0 : uses the correct coin type for ThunderCore ( 1001 ) as registered in SLIP-0044 , used by TrustWallet But private key is everything for your account. So if had multiple accounts with some balance and you remember private keys for all addresses, then you are a lucky man. If this is the case, you can simply create new account in metamask and get a new phrase. And then you can import your accounts to your metamask wallet using private Key.If you can sign into your Metamask account, then you can also gain access to the private key. You simply click on the ellipses (...) next to your account name, and click Export Private Key.Here is something else that can ease your mind on how safe this wallet is. The community is committed and regularly updates the open source code plus this client utilizes HD backup settings. What is more, you have full control over your keys. Basically, MetaMask creates a private key-pair via a seed used to access your wealth from every location.Mar 8, 2020 · I am trying to understand how exactly MetaMask is generating the initial entropy to create its mnemonic key. There are questions like this, MetaMask's documentation, or their GitHub but I can't find the answer I'm looking for in either one. What is the source of entropy in MetaMask for generating mnemonic words (if they are using BIP39)? Solving the UNKNOWN_ERROR (0x650f) in MetaMask. Last updated: February 10, 2023. This article describes how to troubleshoot UNKNOWN_ERROR (0x650f) which might trigger when connecting a Ledger device to MetaMask.Aug 29, 2022 · Click on the Next button. Select the tokens or coins and the amount you want to send. Click on the Next button. Confirm your transaction check the address, amount, and gas fees, and click the Send button. While sending assets from one wallet to the other, always double-check the address you are sending it to. The 'Sync with extension' feature is temporarily disabled. If you want to use your extension wallet on MetaMask mobile, then on your mobile app: go back to the wallet setup options and select the 'Import with Secret Recovery Phrase' option. Use your extension wallet's secret phrase to then import your wallet into mobile.I lost access to a specific address generated in MetaMask web wallet, I still have the public address and my seed phrase. Re-creating my account using the same seed in MetaMask isn't showing that specific address that was created. Is it possible to re-create the private key for that address using my seed phrase? If so, how do I do that? EDIT:In Metamask, each account has a colorful picture filled with shapes as shown in the image attached below (right side) Is there a way to generate them programatically on the client side? I have seenTeams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsBut private key is everything for your account. So if had multiple accounts with some balance and you remember private keys for all addresses, then you are a lucky man. If this is the case, you can simply create new account in metamask and get a new phrase. And then you can import your accounts to your metamask wallet using private Key. Returns a promise that resolves to a boolean indicating if MetaMask is unlocked by the user. MetaMask must be unlocked to perform any operation involving user accounts. Note that this method doesn't indicate if the user has exposed any accounts to the caller. Events The MetaMask provider emits events using the Node.js EventEmitter API.Apr 26, 2022 · How does MetaMask generate your keys? Updated 1 year ago. In the world of cryptographic technologies, your accounts are only as safe as your secret keys are secret and unguessable. For that reason, it's healthy to ask: Where are my MetaMask keys coming from? Create a New Wallet in MetaMask. In this section, you are going to create a new wallet in the MetaMask Android app using the wallet's default methods.To create a new wallet with a new seed phrase in MetaMask: Open the MetaMask extension and tap on `Get Started`. This will bring you to the `Wallet Setup` screen.Jul 19, 2023 · Click on the account selector at the top of your screen. Click the three vertical dots next to the account you want to export. On the 'Account details' page, click 'Show private key'. Enter your wallet password and click 'Confirm' to display your private key. Click to copy the private key to your clipboard. Make sure to save it somewhere safe. On Mobile, tap the “Send” button on the homepage, or tap “Receive” to show your QR code, copy your address, or request payment. On Extension, you can also send by clicking the “Send” button. To receive funds, copy your public address and paste it into the platform you’re sending from, or share it with the sender. I used the following Code to create the signer. I used my 'mnemonic' instead of the private key: const wallet = ethers.Wallet.fromMnemonic(mnemonic); I noticed that pancake uses the swapExactETHForTokens() function instead of swapExactTokensForTokens() for the transactions. Does that make any difference?No. Not all combinations of 12 words from the list are valid †. What you can do is choose 12 words from the list, then feed them into the tool that Rob pointed to. If it's not a valid combination a big orange warning message will appear. † (There are 2048 12 combinations, but only 2048 11 * 2048/ (11-4) are valid - some combinations are ...MetaMask enables two methods: restricted and unrestricted. These methods allow the dApp to take actions like connecting to the wallet, signing transactions, and adding or switching networks. This error is returned for the methods that aren’t supported on MetaMask:Modified 1 year, 8 months ago. Viewed 433 times. 1. So metamask allows the recovery of all your accounts (addresses) using a 12 word phrase. How can convert a 12 word phrase into the public/private key pairs without using metamask? metamask. recovery. c#. Share.Click the account selector at the top of your wallet. Click 'Add account'. Enter your preferred name and then hit 'Create' to confirm. As mentioned above, created accounts are permanent and cannot be removed. They are associated with your Secret Recovery Phrase from the point of creation onwards.Problem: using 2 Metamask instances with the same seed, I can create an account and copy its private key to one instance and then import an account with that Private key, and create an account. This is going to generate a duplicated account and the 2 accounts (which in reality is 1) are displayed on Metamask as a duplicated. Steps to reproduceTry removing the extension, and then adding it as a clean install. Then import your seed phrase. If you don't have your seed phrase: You can export your private key from your already loaded wallet (s), by setting the "site access" option to "on all sites" like this: Go to extension "details", then "Site access", then choose "On all sites ...Step 1. Using ECDSA to generate a public key. Once a private key is obtained, Ethereum uses ECDSA (Elliptic Curve Digital Signature Algorithm) to produce a public key. ECDSA leveraging on Epileptic curve for validation. From this step, a public key of 128 hexadecimal characters/64 bytes/512 bits is obtained.Jan 7, 2022 · Hey @Oneadrian111, welcome to the MetaMask community! If you have your Secret Recovery Phrase, you are able to access and recover your MetaMask wallet, which can be used on Avalanche through adding it as a custom network. If you have your Secret Recovery Phrase, you do not need your private key to recover your wallet. RSA is one of the most popular algorithms employed and uses large primes to generate key pairs. Generating the Keys. When you create a new self-custodial wallet, you generate a new private key, then compute the public key from the private key. The wallet serves as a UI on top of your keys.Reinstall MetaMask. When you reinstall the MetaMask Extension, you'll see a welcome message. Click through. Now you'll be presented with the option to either import a wallet or create a new one. Since we're resetting in this case, we just want to import. Enter your Secret Recovery Phrase (all lower case) and your preferred password:I used the following Code to create the signer. I used my 'mnemonic' instead of the private key: const wallet = ethers.Wallet.fromMnemonic(mnemonic); I noticed that pancake uses the swapExactETHForTokens() function instead of swapExactTokensForTokens() for the transactions. Does that make any difference?Here is something else that can ease your mind on how safe this wallet is. The community is committed and regularly updates the open source code plus this client utilizes HD backup settings. What is more, you have full control over your keys. Basically, MetaMask creates a private key-pair via a seed used to access your wealth from every location.Metamask doesn't expose private keys as it's a huge security issue. You shouldn't expect users to expose their private keys either. If you want to sign a transaction or arbitrary data, you can use the Metamask RPC methods. You can find the methods here. With this, you can perform data signing, encryption-decryption with the private keys, in a ...Nov 22, 2022 · Step 1. Using ECDSA to generate a public key. Once a private key is obtained, Ethereum uses ECDSA (Elliptic Curve Digital Signature Algorithm) to produce a public key. ECDSA leveraging on Epileptic curve for validation. From this step, a public key of 128 hexadecimal characters/64 bytes/512 bits is obtained. The 'Sync with extension' feature is temporarily disabled. If you want to use your extension wallet on MetaMask mobile, then on your mobile app: go back to the wallet setup options and select the 'Import with Secret Recovery Phrase' option. Use your extension wallet's secret phrase to then import your wallet into mobile.Select Connect Hardware Wallet. 4. Choose Ledger or Trezor. 5. Click connect. 6. Select an account you want to interact with (note: MetaMask can only have one account connected and accessible at any given time) Once you successfully connect your account, it will behave just like any other MetaMask account, with the difference that you need to ...Feb 21, 2023 · Restart your browser, or force close the mobile app and reopen. Restart your computer or mobile device. Lock and unlock MetaMask. If your problem relates to a specific transaction, check the relevant block explorer for the network you're using, such as Etherscan. 1. This short article shows command lines to generate a key pair in PEM format and a JWK representing a self-signed certificate for the key pair with the x5c claim. 1. Create a private key. openssl genpkey -algorithm EC -pkeyopt ec_paramgen_curve:P-256 > private_key.pem. NOTE: Be sure that openssl is from OpenSSL, not LibreSSL.Step 4: User Signs the Nonce (Front-end) Once the front end receives nonce in the response of the previous API call, it runs the following code: web3.personal.sign (nonce, web3.eth.coinbase, callback); This will prompt MetaMask to show a confirmation popup for signing the message. Here is something else that can ease your mind on how safe this wallet is. The community is committed and regularly updates the open source code plus this client utilizes HD backup settings. What is more, you have full control over your keys. Basically, MetaMask creates a private key-pair via a seed used to access your wealth from every location. Key derivation is deterministic. If you use snap_getBip32Entropy to generate a key, and then the user deletes the snap, and then installs it again, and you generate again, you will get the same keypair. This is and should be OK. If someone installs a Filecoin snap, they expect to be able to generate keypairs from their SRP.Solving the UNKNOWN_ERROR (0x650f) in MetaMask. Last updated: February 10, 2023. This article describes how to troubleshoot UNKNOWN_ERROR (0x650f) which might trigger when connecting a Ledger device to MetaMask.Interacting with Web3 Sites MetaMask is your portal to Web 3.0. Need assistance in connecting your wallet to a web3 site? Ask your questions here! Security Stay up to date on MetaMask security best practices and work with official MetaMask support. Here are a few resources. That did exactly what I wanted. Thank you. I created the key: keytool -v -keystore output.p12 -genseckey -storetype PKCS12 -keyalg AES -alias new_aes_key -keysize 256 then I was able to extract the key: java ExportPrivateKey output.p12 pkcs12 password new_aes_key password new.pem – On Mobile, tap the “Send” button on the homepage, or tap “Receive” to show your QR code, copy your address, or request payment. On Extension, you can also send by clicking the “Send” button. To receive funds, copy your public address and paste it into the platform you’re sending from, or share it with the sender.What this bot can do: - Simple installation with a choice of language inside the bot. - Security - you do not need to enter the private key into the bot, the bot trades together with the Metamask. - Automatic redistribution of portfolios within the bot and the ability to select the most profitable trading pair. - Ability to choose any interface …Mar 7, 2023 · When the user logs in to MetaMask, the seed phrase is decrypted and used to generate private keys as needed for transactions. However, the private keys themselves are not stored in plain text in program storage. Instead, they are stored in an encrypted form in a key store file, which is also protected by the user’s password. On Mobile, tap the “Send” button on the homepage, or tap “Receive” to show your QR code, copy your address, or request payment. On Extension, you can also send by clicking the “Send” button. To receive funds, copy your public address and paste it into the platform you’re sending from, or share it with the sender. MetaMask uses BIP39 standard for seed phrase. 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. Theoretically, you can generate the mnemonic ...MetaMask has three different types of secret that are used in different ways to keep your wallet, and your accounts, private and safe: The Secret Recovery Phrase, the password, and private keys. We'll walk you through these secrets one at a time.An interface over SLIP-10, BIP-32, and BIP-44 key derivation paths. This library was audited by Cure53 in February 2023. The audit report can be found here (PDF). Installation. yarn add @metamask/key-tree. or. npm install @metamask/key-tree. Usage. This package is designed to accommodate the creation of keys for any level of a SLIP-10 or BIP-44 ...But private key is everything for your account. So if had multiple accounts with some balance and you remember private keys for all addresses, then you are a lucky man. If this is the case, you can simply create new account in metamask and get a new phrase. And then you can import your accounts to your metamask wallet using private Key.Apr 26, 2022 · How does MetaMask generate your keys? Updated 1 year ago. In the world of cryptographic technologies, your accounts are only as safe as your secret keys are secret and unguessable. For that reason, it's healthy to ask: Where are my MetaMask keys coming from? MetaMask has three different types of secret that are used in different ways to keep your wallet, and your accounts, private and safe: The Secret Recovery Phrase, the password, and private keys. We'll walk you through these secrets one at a time.Secret Recovery Phrase and Private Keys. Can I access my accounts without my Secret Recovery Phrase? Importing a seed phrase from another wallet software: derivation path. How to recover your Secret Recovery Phrase. How does MetaMask generate your keys? How to export an account's private key. Nov 27, 2018 · @PASH the eth address is a hash of the public key. Because of how hashing works, information is lost. So it is never possible to use the address for encryption. You have to retrieve the public key that belongs to the address. You can use the eth-crypto module to make sure that the key really belongs to that address, by running the hash function ... Same problem happens when calling a contract method that requires a transaction to be approved by MetaMask: most of the times the MetaMask app does not receive the request. This is very frustrating. This is definitely a problem with the MetaMask mobile app, I have tried other wallets like BitPay and Trust Wallet and they both work fine with ...Metamask doesn't expose private keys as it's a huge security issue. You shouldn't expect users to expose their private keys either. If you want to sign a transaction or arbitrary data, you can use the Metamask RPC methods. You can find the methods here. With this, you can perform data signing, encryption-decryption with the private keys, in a ...On Firefox, follow the guide below to delete MetaMask: First, open Mozilla Firefox on your browser. After that, click on Menu and access the Settings . Next, click on Extensions & Themes . Lastly, find MetaMask, click on More, and choose Remove . Go back to MetaMask afterward to check if the problem is solved. 6.Step 4: User Signs the Nonce (Front-end) Once the front end receives nonce in the response of the previous API call, it runs the following code: web3.personal.sign (nonce, web3.eth.coinbase, callback); This will prompt MetaMask to show a confirmation popup for signing the message. 1.1 Sign into your Coinbase Pro account and click on your username, then click on API. 1.2 Make sure you are on the “API Setting” tab, then click on “New API Key”. 1.3 Tick the “View” box under permissions and then save the “Passphrase”. You will need to use that later when linking your Crypto Pro App. Click on “Create Key”.OK, I assume you’re developing for the Mac here. You wrote: The problem is that I need to generate the key from a service-console application.Hi @M340i MetaMask does not offer support on Telegram, WhatsApp… Trust Wallet ETH key you can find out using this tutorial . Coinomi Support How to extract private keys from other wallets. Please consult the support page of your current wallet for the most up-to-date information for how to get your private keys.1. This short article shows command lines to generate a key pair in PEM format and a JWK representing a self-signed certificate for the key pair with the x5c claim. 1. Create a private key. openssl genpkey -algorithm EC -pkeyopt ec_paramgen_curve:P-256 > private_key.pem. NOTE: Be sure that openssl is from OpenSSL, not LibreSSL.A public key is to cryptocurrency what an IBAN is to a bank account: the address on which you can receive money on a blockchain. The private key is what authorizes you to control funds attached to a public key and initiate transactions from that address. Public and private keys are always created in pairs. A secret phrase is a human-readable ...May 25, 2022 · Seem to have encountered a nasty bug. I have tried a handful of times to create a new account in my MM wallet and it keeps duplicating an existing account (Fiat Transfers, shown below) in the account selector view. However the concerning issue is that on a fresh install of MM extension in Chrome, an attempt to create a new account imports that same existing account…even though no private key ... fun generateKeyPair(keyStoreAlias: String): KeyPair? { val specBuilder: KeyGenParameterSpec.Builder = KeyGenParameterSpec.Builder(keyStoreAlias, KeyProperties.PURPOSE_SIGN) .setAlgorithmParameterSpec(ECGenParameterSpec(EC_KEY_SPEC)) .setDigests( KeyProperties.DIGEST_SHA256, KeyProperties.DIGEST_SHA384, KeyProperties.DIGEST_SHA512 ... A public key is to cryptocurrency what an IBAN is to a bank account: the address on which you can receive money on a blockchain. The private key is what authorizes you to control funds attached to a public key and initiate transactions from that address. Public and private keys are always created in pairs. A secret phrase is a human-readable ... Hi @M340i MetaMask does not offer support on Telegram, WhatsApp… Trust Wallet ETH key you can find out using this tutorial . Coinomi Support How to extract private keys from other wallets. Please consult the support page of your current wallet for the most up-to-date information for how to get your private keys.
May 25, 2022 · Seem to have encountered a nasty bug. I have tried a handful of times to create a new account in my MM wallet and it keeps duplicating an existing account (Fiat Transfers, shown below) in the account selector view. However the concerning issue is that on a fresh install of MM extension in Chrome, an attempt to create a new account imports that same existing account…even though no private key ... . Whatsapp image 2021 05 03 at 03.09.58.jpeg
Hay guys, I really wanted to do this video to show you guys how to backup your Metamask wallets with private keys as well as seed phrases. It's very importa...May 3, 2021 · If you’re having issues following these steps, you can simply remove your MetaMask installation then reinstall it. The first time you’re accessing it you will be asked to Create wallet or import account. You need to select “Create wallet”. Then a new seed phrase will be created, so make sure you store it safely. It will show up in your Mist immediately. For Mac: Open TextEdit. Paste key into TextEdit without any extra characters or quotations. Save the file as nothing_special_delete_me.txt to your Desktop. Open Terminal, run command: geth account import ~/Desktop/nothing_special_delete_me.txt. After successful import, delete the file from your desktop.Jul 12, 2021 · Step 2: Click on the top-right menu of the MetaMask wallet and then find and click on “Connect Hardware Wallet” in the drop-down menu. Step 3: When you click “Continue,” MetaMask will look for a Ledger device connected to the computer. So, to make sure it discovers your wallet, unlock your Ledger device. Create a private-public key pair. openssl req -x509 -newkey rsa:2048 -keyout private.key -out public.cert -days 365 Optionally, combine the pair into a single file. openssl pkcs12 -export -inkey private.key -in public.cert -out certificate.pfx This results in the following files. private.key certificate.pfx public.cert See alsoIf you can sign into your Metamask account, then you can also gain access to the private key. You simply click on the ellipses (...) next to your account name, and click Export Private Key.A public key is to cryptocurrency what an IBAN is to a bank account: the address on which you can receive money on a blockchain. The private key is what authorizes you to control funds attached to a public key and initiate transactions from that address. Public and private keys are always created in pairs. A secret phrase is a human-readable ... Hey @Oneadrian111, welcome to the MetaMask community! If you have your Secret Recovery Phrase, you are able to access and recover your MetaMask wallet, which can be used on Avalanche through adding it as a custom network. If you have your Secret Recovery Phrase, you do not need your private key to recover your wallet.Here is something else that can ease your mind on how safe this wallet is. The community is committed and regularly updates the open source code plus this client utilizes HD backup settings. What is more, you have full control over your keys. Basically, MetaMask creates a private key-pair via a seed used to access your wealth from every location.With the public/private key pair created from the seed integer, MetaMask will now be able to create your first account (created by default when you install MetaMask). As explained, your first account is generated from the keccak256 hash. Internally, MetaMask encrypts your private key using the password that you supplied during the installation ...May 3, 2022 · Problem: using 2 Metamask instances with the same seed, I can create an account and copy its private key to one instance and then import an account with that Private key, and create an account. This is going to generate a duplicated account and the 2 accounts (which in reality is 1) are displayed on Metamask as a duplicated. Steps to reproduce The package will create a new public and private key pair. npm install ethereum-private-key-to-public-key. D. After installing the above package, type the following code in your terminal. The package will be used to convert a public key into an Ethereum address. npm install ethereum-public-key-to-address. Step 2: Implementation.Hey @Oneadrian111, welcome to the MetaMask community! If you have your Secret Recovery Phrase, you are able to access and recover your MetaMask wallet, which can be used on Avalanche through adding it as a custom network. If you have your Secret Recovery Phrase, you do not need your private key to recover your wallet.Sign data. You can use the following RPC methods to request cryptographic signatures from users: eth_signTypedData_v4 - Use this method to request the most human-readable signatures that are efficient to process on-chain. We recommend this for most use cases. personal_sign - Use this method for the easiest way to request human-readable ...I am trying to understand how exactly MetaMask is generating the initial entropy to create its mnemonic key. There are questions like this, MetaMask's documentation, or their GitHub but I can't find the answer I'm looking for in either one. What is the source of entropy in MetaMask for generating mnemonic words (if they are using BIP39)?OK, I assume you’re developing for the Mac here. You wrote: The problem is that I need to generate the key from a service-console application.May 10, 2013 · Create a private-public key pair. openssl req -x509 -newkey rsa:2048 -keyout private.key -out public.cert -days 365 Optionally, combine the pair into a single file. openssl pkcs12 -export -inkey private.key -in public.cert -out certificate.pfx This results in the following files. private.key certificate.pfx public.cert See also Jul 19, 2023 · Click on the account selector at the top of your screen. Click the three vertical dots next to the account you want to export. On the 'Account details' page, click 'Show private key'. Enter your wallet password and click 'Confirm' to display your private key. Click to copy the private key to your clipboard. Make sure to save it somewhere safe. MetaMask offers a Chrome extension and mobile app. Here’s how to set up the Chrome extension. Step 1: Download And Install MetaMask. Go to MetaMask to get the official download link for the extension. MetaMask is open-source software, so it’s easy to make a copy of the app modified for nefarious purposes. Get the real thing..