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. 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.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 ... May 22, 2021 · Step 2: MetaMask wallet installation. Click on the MetaMask extension and click on “Get Started”. You can either import an existent wallet using the seed phrase or create a new one. Step 3: How to create a new MetaMask wallet. Click on “Create a Wallet” and on the next window click on “I agree” if you would like to help improve ... Nov 20, 2019 · “@CryptoGuyCA All MetaMask accounts are generated from your same seed phrase, and encrypted with your same password, so if you have it backed up, you will be able to restore all the accounts you create later on. You can create any number of accounts, and switch between them freely.” 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. 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. 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.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 I'm playing around with keys in android and am trying to generate a public/private cryptographic key-pair. Unfortunately I keep getting a 'KeyStoreException: Invalid key blob'. I'm following the instructions here: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 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.Note: You can further protect, or secure, one's mnemonic by pairing it with a user's passphrase. [mnemonic] + [passphrase] = [private keys]. This is cool, because, if someone got ahold of your mnemonic, they still could NOT generate your private keys without your unique passphrase. Share. Improve this answer.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 … “@CryptoGuyCA All MetaMask accounts are generated from your same seed phrase, and encrypted with your same password, so if you have it backed up, you will be able to restore all the accounts you create later on. You can create any number of accounts, and switch between them freely.”Mar 7, 2021 · Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have 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.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...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)?I have deployed a smart contract on a public testnet and now I am trying to connect to it from the front end using ethers js. But when I try to fetch the value it gives the following errors in theI'm playing around with keys in android and am trying to generate a public/private cryptographic key-pair. Unfortunately I keep getting a 'KeyStoreException: Invalid key blob'. I'm following the instructions here:Jun 21, 2022 · 1. So we can not convert the private key to mnemonic-phrase-words with help of web3js , ethers.js iancoleman.io/bip39. – Sachin Divergent. Jun 22, 2022 at 9:35. @SachinDivergent That's correct. You can see that the linked tool also converts the mnemonic phrase to private keys - not private key to the phrase. – Petr Hejda. 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 ...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.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 ...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?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. 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.Jul 25, 2020 · Try 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 ... 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. Jul 24, 2023 · 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. Nov 20, 2019 · “@CryptoGuyCA All MetaMask accounts are generated from your same seed phrase, and encrypted with your same password, so if you have it backed up, you will be able to restore all the accounts you create later on. You can create any number of accounts, and switch between them freely.” 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.Creates private keys through the secret module in python. These private keys can be imported into metamask. - GitHub - abltae/Private-Key-Generator: Creates private keys through the secret module in python.First login to MetaMask, and click the top right circle and select “connect hardware wallet.”. Next, you’ll choose which hardware wallet you wish to connect. If your wallet is successfully plugged in, you’ll hit “continue,” where you’ll be able to select the account and connect your wallet.Jul 25, 2020 · Try 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 ... 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 –You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window.Apr 17, 2018 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. 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.I've been unable to generate the Account I see in MetaMask in EthereumJSWallet even if I use the same mnemonic. Due to the lack of documentation, I may be misunderstanding how to do so. I have run the following 2 code-blocks in a Truffle Node console in my Terminal but I never got the correct result.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 ...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 –Sep 30, 2016 · It's pretty standard at this point not to prefix private keys with 0x. One good reason is private keys and transactions hashes are the same length. Prefixing transaction hashes with 0x and not private keys reduces the likelihood that you'll ever switch one out for another. e.g. which of the below is a transaction hash and which is a private key? “@CryptoGuyCA All MetaMask accounts are generated from your same seed phrase, and encrypted with your same password, so if you have it backed up, you will be able to restore all the accounts you create later on. You can create any number of accounts, and switch between them freely.”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.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 ...How to use the Vault Decryptor with the MetaMask Vault Data. This article provides instructions for Secret Recovery Phrase recovery on the desktop (MetaMask Browser Extension) and MetaMask Mobile on iOS. We are currently working on a solution for Android; as...InvisibleKeys’ multi-cloud wallet stores the user’s private keys in two or more cloud storage services (e.g. Google Drive, Dropbox, etc) in such a way that even if one of these services is compromised the keys never are. This multi-cloud approach follows a patented workflow (patent US20190095628), which ensures very high levels of security ...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. 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.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.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.Jun 10, 2018 · 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 . 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.Creates private keys through the secret module in python. These private keys can be imported into metamask. - GitHub - abltae/Private-Key-Generator: Creates private keys through the secret module in python.How to find my private key? Support General. zendevil September 19, 2021, 7:49am #1. Metamask provided me with a secret recovery phrase which I use to recover my wallet on a new device or after reinstalling the extension. However, I need to use my private key to deploy a contract outside of metamask.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.Dec 21, 2022 · InvisibleKeys’ multi-cloud wallet stores the user’s private keys in two or more cloud storage services (e.g. Google Drive, Dropbox, etc) in such a way that even if one of these services is compromised the keys never are. This multi-cloud approach follows a patented workflow (patent US20190095628), which ensures very high levels of security ... 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 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.Jul 12, 2021 · 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. See full list on blog.logrocket.com 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: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. 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.Available as a browser extension and as a mobile app, MetaMask equips you with a key vault, secure login, token wallet, and token exchange—everything you need to manage your digital assets.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. 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.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 seenInvalidKeyException in Android app when trying to encrypt with RSA private key 8 InvalidKeyException: Keystore operation failed on RSA decrypt on Android deviceDec 3, 2020 · 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 ... 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.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.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 Jul 25, 2020 · Try 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 ... Available as a browser extension and as a mobile app, MetaMask equips you with a key vault, secure login, token wallet, and token exchange—everything you need to manage your digital assets.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.On the next dialog box, you can either agree or disagree to help “Improve MetaMask.” Next, you will be prompted to create a password. MetaMask considers a strong password to have a minimum of eight characters including letters, numbers, and symbols. Hit “Create,” and then write down the seed backup phrase, which contains 12 words.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.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 ...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.Jun 5, 2022 · InvalidKeyException in Android app when trying to encrypt with RSA private key 8 InvalidKeyException: Keystore operation failed on RSA decrypt on Android device 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: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. Jul 12, 2021 · 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. It worked but gave me a different wallet (another private key) with a Zero balance but I can see transaction history dated since December'2020. I 100% didn't have metamask in 2020, created my account in March'21.There is a possibility that I accidentally created two metamask profiles in March and didn't write down a second seed phrase.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 ...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. 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:
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. . Ptsans bold.woff
I have deployed a smart contract on a public testnet and now I am trying to connect to it from the front end using ethers js. But when I try to fetch the value it gives the following errors in thefun 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 ...Metamask uses Keccak-256 algorithm to generate a key. You are using a keyB64 algorithm. Both algorithms will produce different keys to the given string.Jan 27, 2022 · Thanks for your input but unfortunately that does not answers the exact query, usually in most Wallets generating Seed Phrase from an address’s private key is not possible. In standard approach it should not be in Metamask as well as it is considered a security issue. So it leaves the question again, if sharing private key of an address ... 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 ...Dec 7, 2021 · I have deployed a smart contract on a public testnet and now I am trying to connect to it from the front end using ethers js. But when I try to fetch the value it gives the following errors in the 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: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.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. 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 ... Mar 7, 2021 · Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Jan 14, 2022 · On the bright side for this review, the actual cryptography in MetaMask is fairly limited: as a wallet, it must generate and store Ethereum public and private keys and it also needs to handle “simple” operations like ECDSA signing. On the other hand: we’re in a browser. So nothing is actually simple. 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 ....