.. _eth-accounts: .. include:: include_announcement.rst ================= web3.eth.accounts ================= The ``web3.eth.accounts`` contains functions to generate Ethereum accounts and sign transactions and data. .. note:: This package got NOT audited until now. Take precautions to clear memory properly, store the private keys safely, and test transaction receiving and sending functionality properly before using in production! .. code-block:: javascript import {Accounts} from 'web3-eth-accounts'; // Passing in the eth or web3 package is necessary to allow retrieving chainId, gasPrice and nonce automatically // for accounts.signTransaction(). const accounts = new Accounts('ws://localhost:8546', null, options); ------------------------------------------------------------------------------ .. _accounts-create: create ====== .. code-block:: javascript web3.eth.accounts.create([entropy]); Generates an account object with private key and public key. It's different from :ref:`web3.eth.personal.newAccount() ` which creates an account over the network on the node via an RPC call. ---------- Parameters ---------- 1. ``entropy`` - ``String`` (optional): A random string to increase entropy. If given it should be at least 32 characters. If none is given a random string will be generated using :ref:`randomhex `. .. _eth-accounts-create-return: ------- Returns ------- ``Object`` - The account object with the following structure: - ``address`` - ``string``: The account address. - ``privateKey`` - ``string``: The accounts private key. This should never be shared or stored unencrypted in localstorage! Also make sure to ``null`` the memory after usage. - ``signTransaction(tx [, callback])`` - ``Function``: The function to sign transactions. See :ref:`web3.eth.accounts.signTransaction() ` for more. - ``sign(data)`` - ``Function``: The function to sign transactions. See :ref:`web3.eth.accounts.sign() ` for more. ------- Example ------- .. code-block:: javascript web3.eth.accounts.create(); > { address: "0xb8CE9ab6943e0eCED004cDe8e3bBed6568B2Fa01", privateKey: "0x348ce564d427a3311b6536bbcff9390d69395b06ed6c486954e971d960fe8709", signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } web3.eth.accounts.create('2435@#@#@±±±±!!!!678543213456764321§34567543213456785432134567'); > { address: "0xF2CD2AA0c7926743B1D4310b2BC984a0a453c3d4", privateKey: "0xd7325de5c2c1cf0009fac77d3d04a9c004b038883446b065871bc3e831dcd098", signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } web3.eth.accounts.create(web3.utils.randomHex(32)); > { address: "0xe78150FaCD36E8EB00291e251424a0515AA1FF05", privateKey: "0xcc505ee6067fba3f6fc2050643379e190e087aeffe5d958ab9f2f3ed3800fa4e", signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } ------------------------------------------------------------------------------ privateKeyToAccount =================== .. code-block:: javascript web3.eth.accounts.privateKeyToAccount(privateKey); Creates an account object from a private key. ---------- Parameters ---------- 1. ``privateKey`` - ``String``: The private key hex string beginning with ``0x``. ------- Returns ------- ``Object`` - The account object with the :ref:`structure seen here `. ------- Example ------- .. code-block:: javascript web3.eth.accounts.privateKeyToAccount('0x348ce564d427a3311b6536bbcff9390d69395b06ed6c486954e971d960fe8709'); > { address: '0xb8CE9ab6943e0eCED004cDe8e3bBed6568B2Fa01', privateKey: '0x348ce564d427a3311b6536bbcff9390d69395b06ed6c486954e971d960fe8709', signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } ------------------------------------------------------------------------------ .. _eth-accounts-signtransaction: signTransaction =============== .. code-block:: javascript web3.eth.accounts.signTransaction(tx, privateKey [, callback]); Signs an Ethereum transaction with a given private key. ---------- Parameters ---------- 1. ``tx`` - ``Object``: The transaction's properties object as follows: - ``nonce`` - ``String``: (optional) The nonce to use when signing this transaction. Default will use :ref:`web3.eth.getTransactionCount() `. - ``chainId`` - ``String``: (optional) The chain id to use when signing this transaction. Default will use :ref:`web3.eth.net.getId() `. - ``to`` - ``String``: (optional) The receiver of the transaction, can be empty when deploying a contract. - ``data`` - ``String``: (optional) The call data of the transaction, can be empty for simple value transfers. - ``value`` - ``String``: (optional) The value of the transaction in wei. - ``gasPrice`` - ``String``: (optional) The gas price set by this transaction, if empty, it will use :ref:`web3.eth.gasPrice() ` - ``gas`` - ``String``: The gas provided by the transaction. 2. ``privateKey`` - ``String``: The private key to sign with. 3. ``callback`` - ``Function``: (optional) Optional callback, returns an error object as first parameter and the result as second. ------- Returns ------- ``Promise`` returning ``Object``: The signed data RLP encoded transaction, or if ``returnSignature`` is ``true`` the signature values as follows: - ``messageHash`` - ``String``: The hash of the given message. - ``r`` - ``String``: First 32 bytes of the signature - ``s`` - ``String``: Next 32 bytes of the signature - ``v`` - ``String``: Recovery value + 27 - ``rawTransaction`` - ``String``: The RLP encoded transaction, ready to be send using :ref:`web3.eth.sendSignedTransaction `. - ``transactionHash`` - ``String``: The transaction hash for the RLP encoded transaction. ------- Example ------- .. code-block:: javascript web3.eth.accounts.signTransaction({ to: '0xF0109fC8DF283027b6285cc889F5aA624EaC1F55', value: '1000000000', gas: 2000000 }, '0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318') .then(console.log); > { messageHash: '0x88cfbd7e51c7a40540b233cf68b62ad1df3e92462f1c6018d6d67eae0f3b08f5', v: '0x25', r: '0xc9cf86333bcb065d140032ecaab5d9281bde80f21b9687b3e94161de42d51895', s: '0x727a108a0b8d101465414033c3f705a9c7b826e596766046ee1183dbc8aeaa68', rawTransaction: '0xf869808504e3b29200831e848094f0109fc8df283027b6285cc889f5aa624eac1f55843b9aca008025a0c9cf86333bcb065d140032ecaab5d9281bde80f21b9687b3e94161de42d51895a0727a108a0b8d101465414033c3f705a9c7b826e596766046ee1183dbc8aeaa68', transactionHash: '0xde8db924885b0803d2edc335f745b2b8750c8848744905684c20b987443a9593' } web3.eth.accounts.signTransaction({ to: '0xF0109fC8DF283027b6285cc889F5aA624EaC1F55', value: '1000000000', gas: 2000000, gasPrice: '234567897654321', nonce: 0, chainId: 1 }, '0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318') .then(console.log); > { messageHash: '0x6893a6ee8df79b0f5d64a180cd1ef35d030f3e296a5361cf04d02ce720d32ec5', r: '0x9ebb6ca057a0535d6186462bc0b465b561c94a295bdb0621fc19208ab149a9c', s: '0x440ffd775ce91a833ab410777204d5341a6f9fa91216a6f3ee2c051fea6a0428', v: '0x25', rawTransaction: '0xf86a8086d55698372431831e848094f0109fc8df283027b6285cc889f5aa624eac1f55843b9aca008025a009ebb6ca057a0535d6186462bc0b465b561c94a295bdb0621fc19208ab149a9ca0440ffd775ce91a833ab410777204d5341a6f9fa91216a6f3ee2c051fea6a0428', transactionHash: '0xd8f64a42b57be0d565f385378db2f6bf324ce14a594afc05de90436e9ce01f60' } ------------------------------------------------------------------------------ recoverTransaction ================== .. code-block:: javascript web3.eth.accounts.recoverTransaction(rawTransaction); Recovers the Ethereum address which was used to sign the given RLP encoded transaction. ---------- Parameters ---------- 1. ``signature`` - ``String``: The RLP encoded transaction. ------- Returns ------- ``String``: The Ethereum address used to sign this transaction. ------- Example ------- .. code-block:: javascript web3.eth.accounts.recoverTransaction('0xf86180808401ef364594f0109fc8df283027b6285cc889f5aa624eac1f5580801ca031573280d608f75137e33fc14655f097867d691d5c4c44ebe5ae186070ac3d5ea0524410802cdc025034daefcdfa08e7d2ee3f0b9d9ae184b2001fe0aff07603d9'); > "0xF0109fC8DF283027b6285cc889F5aA624EaC1F55" ------------------------------------------------------------------------------ hashMessage =========== .. code-block:: javascript web3.eth.accounts.hashMessage(message); Hashes the given message to be passed :ref:`web3.eth.accounts.recover() ` function. The data will be UTF-8 HEX decoded and enveloped as follows: ``"\x19Ethereum Signed Message:\n" + message.length + message`` and hashed using keccak256. ---------- Parameters ---------- 1. ``message`` - ``String``: A message to hash, if its HEX it will be UTF8 decoded before. ------- Returns ------- ``String``: The hashed message ------- Example ------- .. code-block:: javascript web3.eth.accounts.hashMessage("Hello World") > "0xa1de988600a42c4b4ab089b619297c17d53cffae5d5120d82d8a92d0bb3b78f2" // the below results in the same hash web3.eth.accounts.hashMessage(web3.utils.utf8ToHex("Hello World")) > "0xa1de988600a42c4b4ab089b619297c17d53cffae5d5120d82d8a92d0bb3b78f2" ------------------------------------------------------------------------------ .. _eth-accounts-sign: sign ==== .. code-block:: javascript web3.eth.accounts.sign(data, privateKey); Signs arbitrary data. This data is before UTF-8 HEX decoded and enveloped as follows: ``"\x19Ethereum Signed Message:\n" + message.length + message``. ---------- Parameters ---------- 1. ``data`` - ``String``: The data to sign. If its a string it will be 2. ``privateKey`` - ``String``: The private key to sign with. ------- Returns ------- ``Object``: The signed data RLP encoded signature, or if ``returnSignature`` is ``true`` the signature values as follows: - ``message`` - ``String``: The the given message. - ``messageHash`` - ``String``: The hash of the given message. - ``r`` - ``String``: First 32 bytes of the signature - ``s`` - ``String``: Next 32 bytes of the signature - ``v`` - ``String``: Recovery value + 27 ------- Example ------- .. code-block:: javascript web3.eth.accounts.sign('Some data', '0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318'); > { message: 'Some data', messageHash: '0x1da44b586eb0729ff70a73c326926f6ed5a25f5b056e7f47fbc6e58d86871655', v: '0x1c', r: '0xb91467e570a6466aa9e9876cbcd013baba02900b8979d43fe208a4a4f339f5fd', s: '0x6007e74cd82e037b800186422fc2da167c747ef045e5d18a5f5d4300f8e1a029', signature: '0xb91467e570a6466aa9e9876cbcd013baba02900b8979d43fe208a4a4f339f5fd6007e74cd82e037b800186422fc2da167c747ef045e5d18a5f5d4300f8e1a0291c' } ------------------------------------------------------------------------------ .. _accounts-recover: recover ======= .. code-block:: javascript web3.eth.accounts.recover(signatureObject); web3.eth.accounts.recover(message, signature [, preFixed]); web3.eth.accounts.recover(message, v, r, s [, preFixed]); Recovers the Ethereum address which was used to sign the given data. ---------- Parameters ---------- 1. ``message|signatureObject`` - ``String|Object``: Either signed message or hash, or the signature object as following values: - ``messageHash`` - ``String``: The hash of the given message already prefixed with ``"\x19Ethereum Signed Message:\n" + message.length + message``. - ``r`` - ``String``: First 32 bytes of the signature - ``s`` - ``String``: Next 32 bytes of the signature - ``v`` - ``String``: Recovery value + 27 2. ``signature`` - ``String``: The raw RLP encoded signature, OR parameter 2-4 as v, r, s values. 3. ``preFixed`` - ``Boolean`` (optional, default: ``false``): If the last parameter is ``true``, the given message will NOT automatically be prefixed with ``"\x19Ethereum Signed Message:\n" + message.length + message``, and assumed to be already prefixed. ------- Returns ------- ``String``: The Ethereum address used to sign this data. ------- Example ------- .. code-block:: javascript web3.eth.accounts.recover({ messageHash: '0x1da44b586eb0729ff70a73c326926f6ed5a25f5b056e7f47fbc6e58d86871655', v: '0x1c', r: '0xb91467e570a6466aa9e9876cbcd013baba02900b8979d43fe208a4a4f339f5fd', s: '0x6007e74cd82e037b800186422fc2da167c747ef045e5d18a5f5d4300f8e1a029' }) > "0x2c7536E3605D9C16a7a3D7b1898e529396a65c23" // message, signature web3.eth.accounts.recover('Some data', '0xb91467e570a6466aa9e9876cbcd013baba02900b8979d43fe208a4a4f339f5fd6007e74cd82e037b800186422fc2da167c747ef045e5d18a5f5d4300f8e1a0291c'); > "0x2c7536E3605D9C16a7a3D7b1898e529396a65c23" // message, v, r, s web3.eth.accounts.recover('Some data', '0x1c', '0xb91467e570a6466aa9e9876cbcd013baba02900b8979d43fe208a4a4f339f5fd', '0x6007e74cd82e037b800186422fc2da167c747ef045e5d18a5f5d4300f8e1a029'); > "0x2c7536E3605D9C16a7a3D7b1898e529396a65c23" ------------------------------------------------------------------------------ encrypt ======= .. code-block:: javascript web3.eth.accounts.encrypt(privateKey, password); Encrypts a private key to the web3 keystore v3 standard. ---------- Parameters ---------- 1. ``privateKey`` - ``String``: The private key to encrypt. 2. ``password`` - ``String``: The password used for encryption. ------- Returns ------- ``Object``: The encrypted keystore v3 JSON. ------- Example ------- .. code-block:: javascript web3.eth.accounts.encrypt('0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318', 'test!') > { version: 3, id: '04e9bcbb-96fa-497b-94d1-14df4cd20af6', address: '2c7536e3605d9c16a7a3d7b1898e529396a65c23', crypto: { ciphertext: 'a1c25da3ecde4e6a24f3697251dd15d6208520efc84ad97397e906e6df24d251', cipherparams: { iv: '2885df2b63f7ef247d753c82fa20038a' }, cipher: 'aes-128-ctr', kdf: 'scrypt', kdfparams: { dklen: 32, salt: '4531b3c174cc3ff32a6a7a85d6761b410db674807b2d216d022318ceee50be10', n: 262144, r: 8, p: 1 }, mac: 'b8b010fff37f9ae5559a352a185e86f9b9c1d7f7a9f1bd4e82a5dd35468fc7f6' } } ------------------------------------------------------------------------------ decrypt ======= .. code-block:: javascript web3.eth.accounts.decrypt(keystoreJsonV3, password); Decrypts a keystore v3 JSON, and creates the account. ---------- Parameters ---------- 1. ``keystoreJsonV3`` - ``String``: The encrypted keystore v3 JSON. 2. ``password`` - ``String``: The password used for encryption. ------- Returns ------- ``Object``: The decrypted account. ------- Example ------- .. code-block:: javascript web3.eth.accounts.decrypt({ version: 3, id: '04e9bcbb-96fa-497b-94d1-14df4cd20af6', address: '2c7536e3605d9c16a7a3d7b1898e529396a65c23', crypto: { ciphertext: 'a1c25da3ecde4e6a24f3697251dd15d6208520efc84ad97397e906e6df24d251', cipherparams: { iv: '2885df2b63f7ef247d753c82fa20038a' }, cipher: 'aes-128-ctr', kdf: 'scrypt', kdfparams: { dklen: 32, salt: '4531b3c174cc3ff32a6a7a85d6761b410db674807b2d216d022318ceee50be10', n: 262144, r: 8, p: 1 }, mac: 'b8b010fff37f9ae5559a352a185e86f9b9c1d7f7a9f1bd4e82a5dd35468fc7f6' } }, 'test!'); > { address: "0x2c7536E3605D9C16a7a3D7b1898e529396a65c23", privateKey: "0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318", signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } ------------------------------------------------------------------------------ .. _eth_accounts_wallet: wallet ====== .. code-block:: javascript web3.eth.accounts.wallet; Contains an in memory wallet with multiple accounts. These accounts can be used when using :ref:`web3.eth.sendTransaction() `. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet; > Wallet { 0: {...}, // account by index "0xF0109fC8DF283027b6285cc889F5aA624EaC1F55": {...}, // same account by address "0xf0109fc8df283027b6285cc889f5aa624eac1f55": {...}, // same account by address lowercase 1: {...}, "0xD0122fC8DF283027b6285cc889F5aA624EaC1d23": {...}, "0xd0122fc8df283027b6285cc889f5aa624eac1d23": {...}, add: function(){}, remove: function(){}, save: function(){}, load: function(){}, clear: function(){}, length: 2, } ------------------------------------------------------------------------------ wallet.create ============= .. code-block:: javascript web3.eth.accounts.wallet.create(numberOfAccounts [, entropy]); Generates one or more accounts in the wallet. If wallets already exist they will not be overridden. ---------- Parameters ---------- 1. ``numberOfAccounts`` - ``Number``: Number of accounts to create. Leave empty to create an empty wallet. 2. ``entropy`` - ``String`` (optional): A string with random characters as additional entropy when generating accounts. If given it should be at least 32 characters. ------- Returns ------- ``Object``: The wallet object. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.create(2, '54674321§3456764321§345674321§3453647544±±±§±±±!!!43534534534534'); > Wallet { 0: {...}, "0xF0109fC8DF283027b6285cc889F5aA624EaC1F55": {...}, "0xf0109fc8df283027b6285cc889f5aa624eac1f55": {...}, ... } ------------------------------------------------------------------------------ wallet.add ========== .. code-block:: javascript web3.eth.accounts.wallet.add(account); Adds an account using a private key or account object to the wallet. ---------- Parameters ---------- 1. ``account`` - ``String|Object``: A private key or account object created with :ref:`web3.eth.accounts.create() `. ------- Returns ------- ``Object``: The added account. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.add('0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318'); > { index: 0, address: '0x2c7536E3605D9C16a7a3D7b1898e529396a65c23', privateKey: '0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318', signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } web3.eth.accounts.wallet.add({ privateKey: '0x348ce564d427a3311b6536bbcff9390d69395b06ed6c486954e971d960fe8709', address: '0xb8CE9ab6943e0eCED004cDe8e3bBed6568B2Fa01' }); > { index: 0, address: '0xb8CE9ab6943e0eCED004cDe8e3bBed6568B2Fa01', privateKey: '0x348ce564d427a3311b6536bbcff9390d69395b06ed6c486954e971d960fe8709', signTransaction: function(tx){...}, sign: function(data){...}, encrypt: function(password){...} } ------------------------------------------------------------------------------ wallet.remove ============= .. code-block:: javascript web3.eth.accounts.wallet.remove(account); Removes an account from the wallet. ---------- Parameters ---------- 1. ``account`` - ``String|Number``: The account address, or index in the wallet. ------- Returns ------- ``Boolean``: ``true`` if the wallet was removed. ``false`` if it couldn't be found. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet; > Wallet { 0: {...}, "0xF0109fC8DF283027b6285cc889F5aA624EaC1F55": {...} 1: {...}, "0xb8CE9ab6943e0eCED004cDe8e3bBed6568B2Fa01": {...} ... } web3.eth.accounts.wallet.remove('0xF0109fC8DF283027b6285cc889F5aA624EaC1F55'); > true web3.eth.accounts.wallet.remove(3); > false ------------------------------------------------------------------------------ wallet.clear ============ .. code-block:: javascript web3.eth.accounts.wallet.clear(); Securely empties the wallet and removes all its accounts. ---------- Parameters ---------- none ------- Returns ------- ``Object``: The wallet object. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.clear(); > Wallet { add: function(){}, remove: function(){}, save: function(){}, load: function(){}, clear: function(){}, length: 0 } ------------------------------------------------------------------------------ wallet.encrypt ============== .. code-block:: javascript web3.eth.accounts.wallet.encrypt(password); Encrypts all wallet accounts to an array of encrypted keystore v3 objects. ---------- Parameters ---------- 1. ``password`` - ``String``: The password which will be used for encryption. ------- Returns ------- ``Array``: The encrypted keystore v3. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.encrypt('test'); > [ { version: 3, id: 'dcf8ab05-a314-4e37-b972-bf9b86f91372', address: '06f702337909c06c82b09b7a22f0a2f0855d1f68', crypto: { ciphertext: '0de804dc63940820f6b3334e5a4bfc8214e27fb30bb7e9b7b74b25cd7eb5c604', cipherparams: [Object], cipher: 'aes-128-ctr', kdf: 'scrypt', kdfparams: [Object], mac: 'b2aac1485bd6ee1928665642bf8eae9ddfbc039c3a673658933d320bac6952e3' } }, { version: 3, id: '9e1c7d24-b919-4428-b10e-0f3ef79f7cf0', address: 'b5d89661b59a9af0b34f58d19138baa2de48baaf', crypto: { ciphertext: 'd705ebed2a136d9e4db7e5ae70ed1f69d6a57370d5fbe06281eb07615f404410', cipherparams: [Object], cipher: 'aes-128-ctr', kdf: 'scrypt', kdfparams: [Object], mac: 'af9eca5eb01b0f70e909f824f0e7cdb90c350a802f04a9f6afe056602b92272b' } } ] ------------------------------------------------------------------------------ wallet.decrypt ============== .. code-block:: javascript web3.eth.accounts.wallet.decrypt(keystoreArray, password); Decrypts keystore v3 objects. ---------- Parameters ---------- 1. ``keystoreArray`` - ``Array``: The encrypted keystore v3 objects to decrypt. 2. ``password`` - ``String``: The password which will be used for encryption. ------- Returns ------- ``Object``: The wallet object. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.decrypt([ { version: 3, id: '83191a81-aaca-451f-b63d-0c5f3b849289', address: '06f702337909c06c82b09b7a22f0a2f0855d1f68', crypto: { ciphertext: '7d34deae112841fba86e3e6cf08f5398dda323a8e4d29332621534e2c4069e8d', cipherparams: { iv: '497f4d26997a84d570778eae874b2333' }, cipher: 'aes-128-ctr', kdf: 'scrypt', kdfparams: { dklen: 32, salt: '208dd732a27aa4803bb760228dff18515d5313fd085bbce60594a3919ae2d88d', n: 262144, r: 8, p: 1 }, mac: '0062a853de302513c57bfe3108ab493733034bf3cb313326f42cf26ea2619cf9' } }, { version: 3, id: '7d6b91fa-3611-407b-b16b-396efb28f97e', address: 'b5d89661b59a9af0b34f58d19138baa2de48baaf', crypto: { ciphertext: 'cb9712d1982ff89f571fa5dbef447f14b7e5f142232bd2a913aac833730eeb43', cipherparams: { iv: '8cccb91cb84e435437f7282ec2ffd2db' }, cipher: 'aes-128-ctr', kdf: 'scrypt', kdfparams: { dklen: 32, salt: '08ba6736363c5586434cd5b895e6fe41ea7db4785bd9b901dedce77a1514e8b8', n: 262144, r: 8, p: 1 }, mac: 'd2eb068b37e2df55f56fa97a2bf4f55e072bef0dd703bfd917717d9dc54510f0' } } ], 'test'); > Wallet { 0: {...}, 1: {...}, "0xF0109fC8DF283027b6285cc889F5aA624EaC1F55": {...}, "0xD0122fC8DF283027b6285cc889F5aA624EaC1d23": {...} ... } ------------------------------------------------------------------------------ wallet.save =========== .. code-block:: javascript web3.eth.accounts.wallet.save(password [, keyName]); Stores the wallet encrypted and as string in local storage. .. note:: Browser only. ---------- Parameters ---------- 1. ``password`` - ``String``: The password to encrypt the wallet. 2. ``keyName`` - ``String``: (optional) The key used for the local storage position, defaults to ``"web3js_wallet"``. ------- Returns ------- ``Boolean`` ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.save('test#!$'); > true ------------------------------------------------------------------------------ wallet.load =========== .. code-block:: javascript web3.eth.accounts.wallet.load(password [, keyName]); Loads a wallet from local storage and decrypts it. .. note:: Browser only. ---------- Parameters ---------- 1. ``password`` - ``String``: The password to decrypt the wallet. 2. ``keyName`` - ``String``: (optional) The key used for the localstorage position, defaults to ``"web3js_wallet"``. ------- Returns ------- ``Object``: The wallet object. ------- Example ------- .. code-block:: javascript web3.eth.accounts.wallet.load('test#!$', 'myWalletKey'); > Wallet { 0: {...}, 1: {...}, "0xF0109fC8DF283027b6285cc889F5aA624EaC1F55": {...}, "0xD0122fC8DF283027b6285cc889F5aA624EaC1d23": {...} ... }