diff --git a/__mocks__/uuid.js b/__mocks__/uuid.js
new file mode 100644
index 00000000000..5f17ea96d77
--- /dev/null
+++ b/__mocks__/uuid.js
@@ -0,0 +1,14 @@
+const uuid = require('uuid');
+
+// mock the v4 function of uuid lib to make sure it returns the fixed id for testing
+const v4 = () => '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d';
+
+module.exports.NIL = uuid.NIL;
+module.exports.v1 = uuid.v1;
+module.exports.v3 = uuid.v3;
+module.exports.v5 = uuid.v5;
+module.exports.parse = uuid.parse;
+module.exports.validate = uuid.validate;
+module.exports.stringify = uuid.stringify;
+
+module.exports.v4 = v4;
diff --git a/package.json b/package.json
index 011825a3d6c..059084ba334 100644
--- a/package.json
+++ b/package.json
@@ -71,6 +71,8 @@
     "web3-provider-engine": "^16.0.3"
   },
   "devDependencies": {
+    "@keystonehq/bc-ur-registry-eth": "^0.9.0",
+    "@keystonehq/metamask-airgapped-keyring": "^0.3.0",
     "@lavamoat/allow-scripts": "^1.0.6",
     "@metamask/auto-changelog": "^2.5.0",
     "@metamask/eslint-config": "^9.0.0",
diff --git a/src/assets/AccountTrackerController.test.ts b/src/assets/AccountTrackerController.test.ts
index 7c0fc7cd732..d5cd4bbad87 100644
--- a/src/assets/AccountTrackerController.test.ts
+++ b/src/assets/AccountTrackerController.test.ts
@@ -2,6 +2,7 @@ import { stub, spy } from 'sinon';
 import HttpProvider from 'ethjs-provider-http';
 import type { ContactEntry } from '../user/AddressBookController';
 import { PreferencesController } from '../user/PreferencesController';
+import * as utils from '../util';
 import { AccountTrackerController } from './AccountTrackerController';
 
 const provider = new HttpProvider(
@@ -44,6 +45,23 @@ describe('AccountTrackerController', () => {
     expect(controller.state.accounts[address].balance).toBeDefined();
   });
 
+  it('should sync balance with addresses', async () => {
+    const address = '0xc38bf1ad06ef69f0c04e29dbeb4152b4175f0a8d';
+    const queryStub = stub(utils, 'query');
+    const controller = new AccountTrackerController(
+      {
+        onPreferencesStateChange: stub(),
+        getIdentities: () => {
+          return {};
+        },
+      },
+      { provider },
+    );
+    queryStub.returns(Promise.resolve('0x10'));
+    const result = await controller.syncBalanceWithAddresses([address]);
+    expect(result[address].balance).toBe('0x10');
+  });
+
   it('should sync addresses', () => {
     const controller = new AccountTrackerController(
       {
diff --git a/src/assets/AccountTrackerController.ts b/src/assets/AccountTrackerController.ts
index 176a8d5feb6..e026ce9e975 100644
--- a/src/assets/AccountTrackerController.ts
+++ b/src/assets/AccountTrackerController.ts
@@ -1,6 +1,6 @@
 import EthQuery from 'eth-query';
 import { Mutex } from 'async-mutex';
-import { BaseController, BaseConfig, BaseState } from '../BaseController';
+import { BaseConfig, BaseController, BaseState } from '../BaseController';
 import { PreferencesState } from '../user/PreferencesController';
 import { BNToHex, query, safelyExecuteWithTimeout } from '../util';
 
@@ -146,15 +146,50 @@ export class AccountTrackerController extends BaseController<
    */
   refresh = async () => {
     this.syncAccounts();
-    const { accounts } = this.state;
+    const accounts = { ...this.state.accounts };
     for (const address in accounts) {
       await safelyExecuteWithTimeout(async () => {
         const balance = await query(this.ethQuery, 'getBalance', [address]);
         accounts[address] = { balance: BNToHex(balance) };
-        this.update({ accounts: { ...accounts } });
       });
     }
+    this.update({ accounts });
   };
+
+  /**
+   * Sync accounts balances with some additional addresses.
+   *
+   * @param addresses - the additional addresses, may be hardware wallet addresses.
+   * @returns accounts - addresses with synced balance
+   */
+  async syncBalanceWithAddresses(
+    addresses: string[],
+  ): Promise<Record<string, { balance: string }>> {
+    return await Promise.all(
+      addresses.map(
+        (address): Promise<[string, string] | undefined> => {
+          return safelyExecuteWithTimeout(async () => {
+            const balance = await query(this.ethQuery, 'getBalance', [address]);
+            return [address, balance];
+          });
+        },
+      ),
+    ).then((value) => {
+      return value.reduce((obj, item) => {
+        if (!item) {
+          return obj;
+        }
+
+        const [address, balance] = item;
+        return {
+          ...obj,
+          [address]: {
+            balance,
+          },
+        };
+      }, {});
+    });
+  }
 }
 
 export default AccountTrackerController;
diff --git a/src/keyring/KeyringController.test.ts b/src/keyring/KeyringController.test.ts
index 627358c8b08..7aa44a4d52a 100644
--- a/src/keyring/KeyringController.test.ts
+++ b/src/keyring/KeyringController.test.ts
@@ -5,16 +5,21 @@ import {
   recoverTypedSignature_v4,
   recoverTypedSignatureLegacy,
 } from 'eth-sig-util';
-import { stub } from 'sinon';
+import sinon, { SinonStub, stub } from 'sinon';
 import Common from '@ethereumjs/common';
 import { TransactionFactory } from '@ethereumjs/tx';
+import { MetaMaskKeyring as QRKeyring } from '@keystonehq/metamask-airgapped-keyring';
+import { CryptoHDKey, ETHSignature } from '@keystonehq/bc-ur-registry-eth';
+import * as uuid from 'uuid';
 import MockEncryptor from '../../tests/mocks/mockEncryptor';
 import { PreferencesController } from '../user/PreferencesController';
+import { MAINNET } from '../constants';
 import {
-  KeyringController,
   AccountImportStrategy,
   Keyring,
   KeyringConfig,
+  KeyringController,
+  KeyringTypes,
   SignTypedDataVersion,
 } from './KeyringController';
 
@@ -40,11 +45,17 @@ describe('KeyringController', () => {
     keyringTypes: string[];
     keyrings: Keyring[];
   };
-  const baseConfig: Partial<KeyringConfig> = { encryptor: new MockEncryptor() };
+  const additionalKeyrings = [QRKeyring];
+  const baseConfig: Partial<KeyringConfig> = {
+    encryptor: new MockEncryptor(),
+    keyringTypes: additionalKeyrings,
+  };
+
   beforeEach(async () => {
     preferences = new PreferencesController();
     keyringController = new KeyringController(
       {
+        setAccountLabel: preferences.setAccountLabel.bind(preferences),
         removeIdentity: preferences.removeIdentity.bind(preferences),
         syncIdentities: preferences.syncIdentities.bind(preferences),
         updateIdentities: preferences.updateIdentities.bind(preferences),
@@ -493,4 +504,411 @@ describe('KeyringController', () => {
     await keyringController.submitPassword(password);
     expect(listenerUnlock.called).toBe(true);
   });
+
+  describe('QR keyring', () => {
+    const composeMockSignature = (
+      requestId: string,
+      signature: string,
+    ): ETHSignature => {
+      const rlpSignatureData = Buffer.from(signature, 'hex');
+      const idBuffer = uuid.parse(requestId);
+      return new ETHSignature(
+        rlpSignatureData,
+        Buffer.from(Uint8Array.from(idBuffer)),
+      );
+    };
+
+    let signProcessKeyringController: KeyringController;
+    preferences = new PreferencesController();
+
+    let requestSignatureStub: SinonStub;
+    let readAccountSub: SinonStub;
+
+    const setupQRKeyring = async () => {
+      readAccountSub.resolves(
+        CryptoHDKey.fromCBOR(
+          Buffer.from(
+            'a902f40358210219218eb65839d08bde4338640b03fdbbdec439ef880d397c2f881282c5b5d135045820e65ed63f52e3e93d48ffb55cd68c6721e58ead9b29b784b8aba58354f4a3d92905d90131a201183c020006d90130a30186182cf5183cf500f5021a5271c071030307d90130a2018400f480f40300081a625f3e6209684b657973746f6e650a706163636f756e742e7374616e64617264',
+            'hex',
+          ),
+        ),
+      );
+      await signProcessKeyringController.connectQRHardware(0);
+      await signProcessKeyringController.unlockQRHardwareWalletAccount(0);
+      await signProcessKeyringController.unlockQRHardwareWalletAccount(1);
+      await signProcessKeyringController.unlockQRHardwareWalletAccount(2);
+    };
+
+    beforeEach(async () => {
+      signProcessKeyringController = new KeyringController(
+        {
+          setAccountLabel: preferences.setAccountLabel.bind(preferences),
+          removeIdentity: preferences.removeIdentity.bind(preferences),
+          syncIdentities: preferences.syncIdentities.bind(preferences),
+          updateIdentities: preferences.updateIdentities.bind(preferences),
+          setSelectedAddress: preferences.setSelectedAddress.bind(preferences),
+        },
+        baseConfig,
+      );
+      await signProcessKeyringController.createNewVaultAndKeychain(password);
+      const qrkeyring = await signProcessKeyringController.getOrAddQRKeyring();
+      qrkeyring.forgetDevice();
+
+      if (!requestSignatureStub) {
+        requestSignatureStub = sinon.stub(
+          qrkeyring.getInteraction(),
+          'requestSignature',
+        );
+      }
+
+      if (!readAccountSub) {
+        readAccountSub = sinon.stub(
+          qrkeyring.getInteraction(),
+          'readCryptoHDKeyOrCryptoAccount',
+        );
+      }
+    });
+
+    afterEach(() => {
+      requestSignatureStub.reset();
+      readAccountSub.reset();
+    });
+
+    it('should setup QR keyring with crypto-hdkey', async () => {
+      readAccountSub.resolves(
+        CryptoHDKey.fromCBOR(
+          Buffer.from(
+            'a902f40358210219218eb65839d08bde4338640b03fdbbdec439ef880d397c2f881282c5b5d135045820e65ed63f52e3e93d48ffb55cd68c6721e58ead9b29b784b8aba58354f4a3d92905d90131a201183c020006d90130a30186182cf5183cf500f5021a5271c071030307d90130a2018400f480f40300081a625f3e6209684b657973746f6e650a706163636f756e742e7374616e64617264',
+            'hex',
+          ),
+        ),
+      );
+
+      const firstPage = await signProcessKeyringController.connectQRHardware(0);
+      expect(firstPage).toHaveLength(5);
+      expect(firstPage[0].index).toBe(0);
+
+      const secondPage = await signProcessKeyringController.connectQRHardware(
+        1,
+      );
+      expect(secondPage).toHaveLength(5);
+      expect(secondPage[0].index).toBe(5);
+
+      const goBackPage = await signProcessKeyringController.connectQRHardware(
+        -1,
+      );
+      expect(goBackPage).toStrictEqual(firstPage);
+
+      await signProcessKeyringController.unlockQRHardwareWalletAccount(0);
+      await signProcessKeyringController.unlockQRHardwareWalletAccount(1);
+      await signProcessKeyringController.unlockQRHardwareWalletAccount(2);
+
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      expect(qrKeyring?.accounts).toHaveLength(3);
+    });
+
+    it('should sign message with QR keyring', async () => {
+      await setupQRKeyring();
+      requestSignatureStub.resolves(
+        composeMockSignature(
+          '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d',
+          '4cb25933c5225f9f92fc9b487451b93bc3646c6aa01b72b01065b8509ac4fd6c37798695d0d5c0949ed10c5e102800ea2b62c2b670729c5631c81b0c52002a641b',
+        ),
+      );
+
+      const data =
+        '0x879a053d4800c6354e76c7985a865d2922c82fb5b3f4577b2fe08b998954f2e0';
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      const account = qrKeyring?.accounts[0] || '';
+      const signature = await signProcessKeyringController.signMessage({
+        data,
+        from: account,
+      });
+      expect(signature).not.toBe('');
+    });
+
+    it('should sign personal message with QR keyring', async () => {
+      await setupQRKeyring();
+      requestSignatureStub.resolves(
+        composeMockSignature(
+          '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d',
+          '73f31609b618050c4058e8f959961c203470657e7218a21d8b94ac1bdef80f255ac5e7a07493302443296ccb20a04ebfa0c8f6ea4dd9134c19ecd65673c336261b',
+        ),
+      );
+
+      const data = bufferToHex(
+        Buffer.from('Example `personal_sign` message', 'utf8'),
+      );
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      const account = qrKeyring?.accounts[0] || '';
+      const signature = await signProcessKeyringController.signPersonalMessage({
+        data,
+        from: account,
+      });
+      const recovered = recoverPersonalSignature({ data, sig: signature });
+      expect(account.toLowerCase()).toBe(recovered.toLowerCase());
+    });
+
+    it('should sign typed message V1 with QR keyring', async () => {
+      await setupQRKeyring();
+      requestSignatureStub.resolves(
+        composeMockSignature(
+          '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d',
+          '4b9b4cde5c883e3281a5a603179379817a94796f3a06079374db94f0b2c1882c5e708de2fa0ec84d74b3819f7baae0d310b4494d101359afe470910bec5d36071b',
+        ),
+      );
+
+      const typedMsgParams = [
+        {
+          name: 'Message',
+          type: 'string',
+          value: 'Hi, Alice!',
+        },
+        {
+          name: 'A number',
+          type: 'uint32',
+          value: '1337',
+        },
+      ];
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      const account = qrKeyring?.accounts[0] || '';
+      const signature = await signProcessKeyringController.signTypedMessage(
+        { data: typedMsgParams, from: account },
+        SignTypedDataVersion.V1,
+      );
+      const recovered = recoverTypedSignatureLegacy({
+        data: typedMsgParams,
+        sig: signature as string,
+      });
+      expect(account.toLowerCase()).toBe(recovered.toLowerCase());
+    });
+
+    it('should sign typed message V3 with QR keyring', async () => {
+      await setupQRKeyring();
+      requestSignatureStub.resolves(
+        composeMockSignature(
+          '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d',
+          '112e4591abc834251f2671127acabebf33be3a8d8fa15312e94ba0f008e53d697930b4ae99cb36955e1c96fee888cf1ed6e314769db0bd4d6246d492b8685fd21c',
+        ),
+      );
+
+      const msg =
+        '{"types":{"EIP712Domain":[{"name":"name","type":"string"},{"name":"version","type":"string"},{"name":"chainId","type":"uint256"},{"name":"verifyingContract","type":"address"}],"Person":[{"name":"name","type":"string"},{"name":"wallet","type":"address"}],"Mail":[{"name":"from","type":"Person"},{"name":"to","type":"Person"},{"name":"contents","type":"string"}]},"primaryType":"Mail","domain":{"name":"Ether Mail","version":"1","chainId":4,"verifyingContract":"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"},"message":{"from":{"name":"Cow","wallet":"0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"},"to":{"name":"Bob","wallet":"0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"},"contents":"Hello, Bob!"}}';
+
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      const account = qrKeyring?.accounts[0] || '';
+      const signature = await signProcessKeyringController.signTypedMessage(
+        {
+          data: msg,
+          from: account,
+        },
+        SignTypedDataVersion.V3,
+      );
+      const recovered = recoverTypedSignature({
+        data: JSON.parse(msg),
+        sig: signature as string,
+      });
+      expect(account.toLowerCase()).toBe(recovered);
+    });
+
+    it('should sign typed message V4 with QR keyring', async () => {
+      await setupQRKeyring();
+      requestSignatureStub.resolves(
+        composeMockSignature(
+          '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d',
+          '1271c3de4683ed99b11ceecc0a81f48701057174eb0edd729342ecdd9e061ed26eea3c4b84d232e01de00f1f3884fdfe15f664fe2c58c2e565d672b3cb281ccb1c',
+        ),
+      );
+
+      const msg =
+        '{"domain":{"chainId":"4","name":"Ether Mail","verifyingContract":"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC","version":"1"},"message":{"contents":"Hello, Bob!","from":{"name":"Cow","wallets":["0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826","0xDeaDbeefdEAdbeefdEadbEEFdeadbeEFdEaDbeeF"]},"to":[{"name":"Bob","wallets":["0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB","0xB0BdaBea57B0BDABeA57b0bdABEA57b0BDabEa57","0xB0B0b0b0b0b0B000000000000000000000000000"]}]},"primaryType":"Mail","types":{"EIP712Domain":[{"name":"name","type":"string"},{"name":"version","type":"string"},{"name":"chainId","type":"uint256"},{"name":"verifyingContract","type":"address"}],"Group":[{"name":"name","type":"string"},{"name":"members","type":"Person[]"}],"Mail":[{"name":"from","type":"Person"},{"name":"to","type":"Person[]"},{"name":"contents","type":"string"}],"Person":[{"name":"name","type":"string"},{"name":"wallets","type":"address[]"}]}}';
+
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      const account = qrKeyring?.accounts[0] || '';
+      const signature = await signProcessKeyringController.signTypedMessage(
+        { data: msg, from: account },
+        SignTypedDataVersion.V4,
+      );
+      const recovered = recoverTypedSignature_v4({
+        data: JSON.parse(msg),
+        sig: signature as string,
+      });
+      expect(account.toLowerCase()).toBe(recovered);
+    });
+
+    it('should sign transaction with QR keyring', async () => {
+      await setupQRKeyring();
+      requestSignatureStub.resolves(
+        composeMockSignature(
+          '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d',
+          '33ea4c1dc4b201ad1b1feaf172aadf60dcf2f8bd76d941396bfaebfc3b2868b0340d5689341925c99cdea39e3c5daf7fe2776f220e5b018e85d3b1df19c7bc4701',
+        ),
+      );
+
+      const qrKeyring = signProcessKeyringController.state.keyrings.find(
+        (keyring) => keyring.type === KeyringTypes.qr,
+      );
+      const account = qrKeyring?.accounts[0] || '';
+      const tx = TransactionFactory.fromTxData(
+        {
+          accessList: [],
+          chainId: '0x4',
+          data: '0x',
+          gasLimit: '0x5208',
+          maxFeePerGas: '0x2540be400',
+          maxPriorityFeePerGas: '0x3b9aca00',
+          nonce: '0x68',
+          r: undefined,
+          s: undefined,
+          to: '0x0c54fccd2e384b4bb6f2e405bf5cbc15a017aafb',
+          v: undefined,
+          value: '0x0',
+          type: 2,
+        },
+        {
+          common: Common.forCustomChain(
+            MAINNET,
+            {
+              name: 'rinkeby',
+              chainId: parseInt('4'),
+              networkId: parseInt('4'),
+            },
+            'london',
+          ),
+        },
+      );
+      const signedTx = await signProcessKeyringController.signTransaction(
+        tx,
+        account,
+      );
+      expect(signedTx.v).not.toBeUndefined();
+      expect(signedTx).not.toBe('');
+    });
+
+    it('should reset qr keyring state', async () => {
+      await setupQRKeyring();
+      (await signProcessKeyringController.getQRKeyringState()).updateState({
+        sign: {
+          request: {
+            requestId: 'test',
+            payload: {
+              cbor: 'test',
+              type: 'test',
+            },
+          },
+        },
+      });
+
+      expect(
+        (await signProcessKeyringController.getQRKeyringState()).getState().sign
+          .request,
+      ).toBeDefined();
+
+      await signProcessKeyringController.resetQRKeyringState();
+
+      expect(
+        (await signProcessKeyringController.getQRKeyringState()).getState().sign
+          .request,
+      ).toBeUndefined();
+    });
+
+    it('should forget qr keyring', async () => {
+      await setupQRKeyring();
+      expect(
+        signProcessKeyringController.state.keyrings[1].accounts,
+      ).toHaveLength(3);
+      await signProcessKeyringController.forgetQRDevice();
+      expect(
+        signProcessKeyringController.state.keyrings[1].accounts,
+      ).toHaveLength(0);
+    });
+
+    it('should restore qr keyring', async () => {
+      const serializedQRKeyring = {
+        initialized: true,
+        accounts: ['0xE410157345be56688F43FF0D9e4B2B38Ea8F7828'],
+        currentAccount: 0,
+        page: 0,
+        perPage: 5,
+        keyringAccount: 'account.standard',
+        keyringMode: 'hd',
+        name: 'Keystone',
+        version: 1,
+        xfp: '5271c071',
+        xpub:
+          'xpub6CNhtuXAHDs84AhZj5ALZB6ii4sP5LnDXaKDSjiy6kcBbiysq89cDrLG29poKvZtX9z4FchZKTjTyiPuDeiFMUd1H4g5zViQxt4tpkronJr',
+        hdPath: "m/44'/60'/0'",
+        childrenPath: '0/*',
+        indexes: {
+          '0xE410157345be56688F43FF0D9e4B2B38Ea8F7828': 0,
+          '0xEEACb7a5e53600c144C0b9839A834bb4b39E540c': 1,
+          '0xA116800A72e56f91cF1677D40C9984f9C9f4B2c7': 2,
+          '0x4826BadaBC9894B3513e23Be408605611b236C0f': 3,
+          '0x8a1503beb17Ef02cC4Ff288b0A73583c4ce547c7': 4,
+        },
+        paths: {},
+      };
+      await signProcessKeyringController.restoreQRKeyring(serializedQRKeyring);
+      expect(
+        signProcessKeyringController.state.keyrings[1].accounts,
+      ).toHaveLength(1);
+    });
+
+    it('should get account keyring type', async () => {
+      await setupQRKeyring();
+      const qrAccount = '0xE410157345be56688F43FF0D9e4B2B38Ea8F7828';
+      const hdAccount =
+        signProcessKeyringController.state.keyrings[0].accounts[0];
+      expect(
+        await signProcessKeyringController.getAccountKeyringType(hdAccount),
+      ).toBe(KeyringTypes.hd);
+
+      expect(
+        await signProcessKeyringController.getAccountKeyringType(qrAccount),
+      ).toBe(KeyringTypes.qr);
+    });
+
+    it("should call qr keyring's methods", async () => {
+      await setupQRKeyring();
+      const qrKeyring = await signProcessKeyringController.getOrAddQRKeyring();
+
+      const submitCryptoHDKeyStub = sinon.stub(qrKeyring, 'submitCryptoHDKey');
+      submitCryptoHDKeyStub.resolves();
+      await signProcessKeyringController.submitQRCryptoHDKey('anything');
+      expect(submitCryptoHDKeyStub.calledWith('anything')).toBe(true);
+
+      const submitCryptoAccountStub = sinon.stub(
+        qrKeyring,
+        'submitCryptoAccount',
+      );
+      submitCryptoAccountStub.resolves();
+      await signProcessKeyringController.submitQRCryptoAccount('anything');
+      expect(submitCryptoAccountStub.calledWith('anything')).toBe(true);
+
+      const submitSignatureStub = sinon.stub(qrKeyring, 'submitSignature');
+      submitSignatureStub.resolves();
+      await signProcessKeyringController.submitQRSignature(
+        'anything',
+        'anything',
+      );
+      expect(submitSignatureStub.calledWith('anything', 'anything')).toBe(true);
+
+      const cancelSignRequestStub = sinon.stub(qrKeyring, 'cancelSignRequest');
+      cancelSignRequestStub.resolves();
+      await signProcessKeyringController.cancelQRSignRequest();
+      expect(cancelSignRequestStub.called).toBe(true);
+    });
+  });
 });
diff --git a/src/keyring/KeyringController.ts b/src/keyring/KeyringController.ts
index 0f168df88bf..b551bc5e57b 100644
--- a/src/keyring/KeyringController.ts
+++ b/src/keyring/KeyringController.ts
@@ -14,6 +14,10 @@ import {
 import Wallet, { thirdparty as importers } from 'ethereumjs-wallet';
 import Keyring from 'eth-keyring-controller';
 import { Mutex } from 'async-mutex';
+import {
+  MetaMaskKeyring as QRKeyring,
+  IKeyringState as IQRKeyringState,
+} from '@keystonehq/metamask-airgapped-keyring';
 import {
   BaseController,
   BaseConfig,
@@ -33,6 +37,7 @@ const privates = new WeakMap();
 export enum KeyringTypes {
   simple = 'Simple Key Pair',
   hd = 'HD Key Tree',
+  qr = 'QR Hardware Wallet Device',
 }
 
 /**
@@ -83,6 +88,7 @@ export interface KeyringMemState extends BaseState {
  */
 export interface KeyringConfig extends BaseConfig {
   encryptor?: any;
+  keyringTypes?: any[];
 }
 
 /**
@@ -140,6 +146,8 @@ export class KeyringController extends BaseController<
 
   private setSelectedAddress: PreferencesController['setSelectedAddress'];
 
+  private setAccountLabel?: PreferencesController['setAccountLabel'];
+
   /**
    * Creates a KeyringController instance.
    *
@@ -148,6 +156,7 @@ export class KeyringController extends BaseController<
    * @param options.syncIdentities - Sync identities with the given list of addresses.
    * @param options.updateIdentities - Generate an identity for each address given that doesn't already have an identity.
    * @param options.setSelectedAddress - Set the selected address.
+   * @param options.setAccountLabel - Set a new name for account.
    * @param config - Initial options used to configure this controller.
    * @param state - Initial state to set on this controller.
    */
@@ -157,11 +166,13 @@ export class KeyringController extends BaseController<
       syncIdentities,
       updateIdentities,
       setSelectedAddress,
+      setAccountLabel,
     }: {
       removeIdentity: PreferencesController['removeIdentity'];
       syncIdentities: PreferencesController['syncIdentities'];
       updateIdentities: PreferencesController['updateIdentities'];
       setSelectedAddress: PreferencesController['setSelectedAddress'];
+      setAccountLabel?: PreferencesController['setAccountLabel'];
     },
     config?: Partial<KeyringConfig>,
     state?: Partial<KeyringState>,
@@ -179,6 +190,7 @@ export class KeyringController extends BaseController<
     this.syncIdentities = syncIdentities;
     this.updateIdentities = updateIdentities;
     this.setSelectedAddress = setSelectedAddress;
+    this.setAccountLabel = setAccountLabel;
     this.initialize();
     this.fullUpdate();
   }
@@ -430,6 +442,26 @@ export class KeyringController extends BaseController<
   ) {
     try {
       const address = normalizeAddress(messageParams.from);
+      const qrKeyring = await this.getOrAddQRKeyring();
+      const qrAccounts = await qrKeyring.getAccounts();
+      if (
+        qrAccounts.findIndex(
+          (qrAddress: string) =>
+            qrAddress.toLowerCase() === address.toLowerCase(),
+        ) !== -1
+      ) {
+        const messageParamsClone = { ...messageParams };
+        if (
+          version !== SignTypedDataVersion.V1 &&
+          typeof messageParamsClone.data === 'string'
+        ) {
+          messageParamsClone.data = JSON.parse(messageParamsClone.data);
+        }
+        return privates
+          .get(this)
+          .keyring.signTypedMessage(messageParamsClone, { version });
+      }
+
       const { password } = privates.get(this).keyring;
       const privateKey = await this.exportAccount(password, address);
       const privateKeyBuffer = toBuffer(addHexPrefix(privateKey));
@@ -586,6 +618,131 @@ export class KeyringController extends BaseController<
     this.update({ keyrings: [...keyrings] });
     return privates.get(this).keyring.fullUpdate();
   }
+
+  // QR Hardware related methods
+
+  /**
+   * Add qr hardware keyring.
+   *
+   * @returns The added keyring
+   */
+  private async addQRKeyring(): Promise<QRKeyring> {
+    const keyring = await privates
+      .get(this)
+      .keyring.addNewKeyring(KeyringTypes.qr);
+    await this.fullUpdate();
+    return keyring;
+  }
+
+  /**
+   * Get qr hardware keyring.
+   *
+   * @returns The added keyring
+   */
+  async getOrAddQRKeyring(): Promise<QRKeyring> {
+    const keyring = privates
+      .get(this)
+      .keyring.getKeyringsByType(KeyringTypes.qr)[0];
+    return keyring || (await this.addQRKeyring());
+  }
+
+  async restoreQRKeyring(serialized: any): Promise<void> {
+    (await this.getOrAddQRKeyring()).deserialize(serialized);
+    this.updateIdentities(await privates.get(this).keyring.getAccounts());
+    await this.fullUpdate();
+  }
+
+  async resetQRKeyringState(): Promise<void> {
+    (await this.getOrAddQRKeyring()).resetStore();
+  }
+
+  async getQRKeyringState(): Promise<IQRKeyringState> {
+    return (await this.getOrAddQRKeyring()).getMemStore();
+  }
+
+  async submitQRCryptoHDKey(cryptoHDKey: string): Promise<void> {
+    (await this.getOrAddQRKeyring()).submitCryptoHDKey(cryptoHDKey);
+  }
+
+  async submitQRCryptoAccount(cryptoAccount: string): Promise<void> {
+    (await this.getOrAddQRKeyring()).submitCryptoAccount(cryptoAccount);
+  }
+
+  async submitQRSignature(
+    requestId: string,
+    ethSignature: string,
+  ): Promise<void> {
+    (await this.getOrAddQRKeyring()).submitSignature(requestId, ethSignature);
+  }
+
+  async cancelQRSignRequest(): Promise<void> {
+    (await this.getOrAddQRKeyring()).cancelSignRequest();
+  }
+
+  async connectQRHardware(
+    page: number,
+  ): Promise<{ balance: string; address: string; index: number }[]> {
+    try {
+      const keyring = await this.getOrAddQRKeyring();
+      let accounts;
+      switch (page) {
+        case -1:
+          accounts = await keyring.getPreviousPage();
+          break;
+        case 1:
+          accounts = await keyring.getNextPage();
+          break;
+        default:
+          accounts = await keyring.getFirstPage();
+      }
+      return accounts.map((account: any) => {
+        return {
+          ...account,
+          balance: '0x0',
+        };
+      });
+    } catch (e) {
+      throw new Error(`Unspecified error when connect QR Hardware, ${e}`);
+    }
+  }
+
+  async unlockQRHardwareWalletAccount(index: number): Promise<void> {
+    const keyring = await this.getOrAddQRKeyring();
+
+    keyring.setAccountToUnlock(index);
+    const oldAccounts = await privates.get(this).keyring.getAccounts();
+    await privates.get(this).keyring.addNewAccount(keyring);
+    const newAccounts = await privates.get(this).keyring.getAccounts();
+    this.updateIdentities(newAccounts);
+    newAccounts.forEach((address: string) => {
+      if (!oldAccounts.includes(address)) {
+        if (this.setAccountLabel) {
+          this.setAccountLabel(address, `${keyring.getName()} ${index}`);
+        }
+        this.setSelectedAddress(address);
+      }
+    });
+    await privates.get(this).keyring.persistAllKeyrings();
+    await this.fullUpdate();
+  }
+
+  async getAccountKeyringType(account: string): Promise<KeyringTypes> {
+    return (await privates.get(this).keyring.getKeyringForAccount(account))
+      .type;
+  }
+
+  async forgetQRDevice(): Promise<void> {
+    const keyring = await this.getOrAddQRKeyring();
+    keyring.forgetDevice();
+    const accounts = (await privates
+      .get(this)
+      .keyring.getAccounts()) as string[];
+    accounts.forEach((account) => {
+      this.setSelectedAddress(account);
+    });
+    await privates.get(this).keyring.persistAllKeyrings();
+    await this.fullUpdate();
+  }
 }
 
 export default KeyringController;
diff --git a/yarn.lock b/yarn.lock
index 04ba1f1909d..9f9438edc90 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,11 @@
 # yarn lockfile v1
 
 
+"@apocentre/alias-sampling@^0.5.3":
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/@apocentre/alias-sampling/-/alias-sampling-0.5.3.tgz#897ff181b48ad7b2bcb4ecf29400214888244f08"
+  integrity sha512-7UDWIIF9hIeJqfKXkNIzkVandlwLf1FWTSdrb9iXvOP8oF544JRXQjCbiTmCv2c9n44n/FIWtehhBfNuAx2CZA==
+
 "@babel/code-frame@7.12.11":
   version "7.12.11"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.12.11.tgz#f4ad435aa263db935b8f10f2c552d23fb716a63f"
@@ -440,6 +445,14 @@
     minimatch "^3.0.4"
     strip-json-comments "^3.1.1"
 
+"@ethereumjs/common@^2.0.0":
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.6.0.tgz#feb96fb154da41ee2cc2c5df667621a440f36348"
+  integrity sha512-Cq2qS0FTu6O2VU1sgg+WyU9Ps0M6j/BEMHN+hRaECXCV/r0aI78u4N6p52QW/BDVhwWZpCdrvG8X7NJdzlpNUA==
+  dependencies:
+    crc-32 "^1.2.0"
+    ethereumjs-util "^7.1.3"
+
 "@ethereumjs/common@^2.3.1":
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.3.1.tgz#d692e3aff5adb35dd587dd1e6caab69e0ed2fa0b"
@@ -456,6 +469,14 @@
     crc-32 "^1.2.0"
     ethereumjs-util "^7.1.0"
 
+"@ethereumjs/tx@3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.0.0.tgz#8dfd91ed6e91e63996e37b3ddc340821ebd48c81"
+  integrity sha512-H9tfy6qgYxPXvt1TSObfVmVjlF43OoQqoPQ3PJsG2JiuqaMHj5ettV1pGFEC3FamENDBkl6vD6niQEvIlXv/VQ==
+  dependencies:
+    "@ethereumjs/common" "^2.0.0"
+    ethereumjs-util "^7.0.7"
+
 "@ethereumjs/tx@^3.2.1":
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.2.1.tgz#65f5f1c11541764f08377a94ba4b0dcbbd67739e"
@@ -1049,6 +1070,48 @@
     "@types/yargs" "^16.0.0"
     chalk "^4.0.0"
 
+"@keystonehq/base-eth-keyring@^0.4.0":
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/@keystonehq/base-eth-keyring/-/base-eth-keyring-0.4.0.tgz#7667d2b6e38fc90553ce934c0c60c89329315b92"
+  integrity sha512-CDlRNGdrHDHtBS0pAdrsjNNbyi7tn7mGrwmgiGQ6F8rhYXDZ/TcvYV1AXlzCe0eFyjPdMGdl+PgZRwBpVRtpQQ==
+  dependencies:
+    "@ethereumjs/tx" "3.0.0"
+    "@keystonehq/bc-ur-registry-eth" "^0.9.0"
+    ethereumjs-util "^7.0.8"
+    hdkey "^2.0.1"
+    uuid "^8.3.2"
+
+"@keystonehq/bc-ur-registry-eth@^0.9.0":
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/@keystonehq/bc-ur-registry-eth/-/bc-ur-registry-eth-0.9.0.tgz#607428945029a06ec17ce3288caf53a0cbd8cc22"
+  integrity sha512-OVRT8Op+ZlOU9EBMxPBtQLrQZKzsV3DlfLq8P1T+Dq7WmGQNsRmQPchgju9qOlIIvmuAKaKdGXNN9W2qpTBAfA==
+  dependencies:
+    "@keystonehq/bc-ur-registry" "^0.5.0-alpha.5"
+    ethereumjs-util "^7.0.8"
+    hdkey "^2.0.1"
+    uuid "^8.3.2"
+
+"@keystonehq/bc-ur-registry@^0.5.0-alpha.5":
+  version "0.5.0-alpha.5"
+  resolved "https://registry.yarnpkg.com/@keystonehq/bc-ur-registry/-/bc-ur-registry-0.5.0-alpha.5.tgz#3d1a7eab980e8445c1596cdde704215c96d6b88a"
+  integrity sha512-T80XI+c8pWnkq9ZbuadlhFq/+8o4TcHtq+LQsK1XfjkhBqH75tcwim0310gKxavOhaSoC1i8dSqAnrFpj+5dJw==
+  dependencies:
+    "@ngraveio/bc-ur" "^1.1.5"
+    base58check "^2.0.0"
+    tslib "^2.3.0"
+
+"@keystonehq/metamask-airgapped-keyring@^0.3.0":
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/@keystonehq/metamask-airgapped-keyring/-/metamask-airgapped-keyring-0.3.0.tgz#3de02b268b28d9f2e2e728a10cad8cfc17870c3c"
+  integrity sha512-CkiQGRPYM8CBeb8GsrrsTXpdHACl9NnoeWGQDY7DXGiy3s6u7WQ6TXal7K+wAHdU4asBzTaK2SNPZ/eIvGiAfg==
+  dependencies:
+    "@ethereumjs/tx" "^3.3.0"
+    "@keystonehq/base-eth-keyring" "^0.4.0"
+    "@keystonehq/bc-ur-registry-eth" "^0.9.0"
+    "@metamask/obs-store" "^7.0.0"
+    rlp "^2.2.6"
+    uuid "^8.3.2"
+
 "@lavamoat/allow-scripts@^1.0.6":
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/@lavamoat/allow-scripts/-/allow-scripts-1.0.6.tgz#fbdf7c35a5c2c2cff05ba002b7bc8f3355bda22c"
@@ -1107,6 +1170,14 @@
   resolved "https://registry.yarnpkg.com/@metamask/metamask-eth-abis/-/metamask-eth-abis-3.0.0.tgz#eccc0746b3ab1ab63000444403819c16e88b5272"
   integrity sha512-YtIl4e1VzqwwHGafuLIVPqbcWWWqQ0Ezo8/Ci5m5OGllqE2oTTx9iVHdUmXNkgCVD37SBfwn/fm/S1IGkM8BQA==
 
+"@metamask/obs-store@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@metamask/obs-store/-/obs-store-7.0.0.tgz#6cae5f28306bb3e83a381bc9ae22682316095bd3"
+  integrity sha512-Tr61Uu9CGXkCg5CZwOYRMQERd+y6fbtrtLd/PzDTPHO5UJpmSbU+7MPcQK7d1DwZCOCeCIvhmZSUCvYliC8uGw==
+  dependencies:
+    "@metamask/safe-event-emitter" "^2.0.0"
+    through2 "^2.0.3"
+
 "@metamask/safe-event-emitter@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@metamask/safe-event-emitter/-/safe-event-emitter-2.0.0.tgz#af577b477c683fad17c619a78208cede06f9605c"
@@ -1117,6 +1188,19 @@
   resolved "https://registry.yarnpkg.com/@metamask/types/-/types-1.1.0.tgz#9bd14b33427932833c50c9187298804a18c2e025"
   integrity sha512-EEV/GjlYkOSfSPnYXfOosxa3TqYtIW3fhg6jdw+cok/OhMgNn4wCfbENFqjytrHMU2f7ZKtBAvtiP5V8H44sSw==
 
+"@ngraveio/bc-ur@^1.1.5":
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/@ngraveio/bc-ur/-/bc-ur-1.1.6.tgz#8f8c75fff22f6a5e4dfbc5a6b540d7fe8f42cd39"
+  integrity sha512-G+2XgjXde2IOcEQeCwR250aS43/Swi7gw0FuETgJy2c3HqF8f88SXDMsIGgJlZ8jXd0GeHR4aX0MfjXf523UZg==
+  dependencies:
+    "@apocentre/alias-sampling" "^0.5.3"
+    assert "^2.0.0"
+    bignumber.js "^9.0.1"
+    cbor-sync "^1.0.4"
+    crc "^3.8.0"
+    jsbi "^3.1.5"
+    sha.js "^2.4.11"
+
 "@nodelib/fs.scandir@2.1.3":
   version "2.1.3"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.3.tgz#3a582bdb53804c6ba6d146579c46e52130cf4a3b"
@@ -1821,6 +1905,16 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
   integrity sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=
 
+assert@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/assert/-/assert-2.0.0.tgz#95fc1c616d48713510680f2eaf2d10dd22e02d32"
+  integrity sha512-se5Cd+js9dXJnu6Ag2JFc00t+HmHOen+8Q+L7O9zI0PqQXr20uk2J0XQqMxZEeo5U50o8Nvmmx7dZrl+Ufr35A==
+  dependencies:
+    es6-object-assign "^1.1.0"
+    is-nan "^1.2.1"
+    object-is "^1.0.1"
+    util "^0.12.0"
+
 assign-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
@@ -1877,6 +1971,11 @@ atob@^2.1.1:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
+available-typed-arrays@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/available-typed-arrays/-/available-typed-arrays-1.0.5.tgz#92f95616501069d07d10edb2fc37d3e1c65123b7"
+  integrity sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==
+
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
@@ -1967,6 +2066,11 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
   integrity sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==
 
+base-x@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/base-x/-/base-x-1.1.0.tgz#42d3d717474f9ea02207f6d1aa1f426913eeb7ac"
+  integrity sha1-QtPXF0dPnqAiB/bRqh9CaRPut6w=
+
 base-x@^3.0.2:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/base-x/-/base-x-3.0.8.tgz#1e1106c2537f0162e8b52474a557ebb09000018d"
@@ -1974,11 +2078,23 @@ base-x@^3.0.2:
   dependencies:
     safe-buffer "^5.0.1"
 
+base58check@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/base58check/-/base58check-2.0.0.tgz#8046652d14bc87f063bd16be94a39134d3b61173"
+  integrity sha1-gEZlLRS8h/BjvRa+lKORNNO2EXM=
+  dependencies:
+    bs58 "^3.0.0"
+
 base64-js@^1.0.2:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.1.tgz#58ece8cb75dd07e71ed08c736abc5fac4dbf8df1"
   integrity sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==
 
+base64-js@^1.3.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
+  integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -2004,6 +2120,11 @@ bech32@1.1.4:
   resolved "https://registry.yarnpkg.com/bech32/-/bech32-1.1.4.tgz#e38c9f37bf179b8eb16ae3a772b40c356d4832e9"
   integrity sha512-s0IrSOzLlbvX7yp4WBfPITzpAU8sqQcpsmwXDiKwrG4r491vwCO/XpejasRNl0piBMe/DvP4Tz0mIS/X1DPJBQ==
 
+bignumber.js@^9.0.1:
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.2.tgz#71c6c6bed38de64e24a65ebe16cfcf23ae693673"
+  integrity sha512-GAcQvbpsM0pUb0zw1EI0KhQEZ+lRwR5fYaAp3vPOYuP7aDvGy6cVN6XHLauvF8SOga2y0dcLcjt3iQDTSEliyw==
+
 "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git":
   version "2.0.7"
   resolved "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934"
@@ -2058,6 +2179,11 @@ bn.js@^5.1.2:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.1.3.tgz#beca005408f642ebebea80b042b4d18d2ac0ee6b"
   integrity sha512-GkTiFpjFtUzU9CbMeJ5iazkCzGL3jrhzerzZIuqLABjbwRaFt33I9tUdSNryIptM+RxDet6OKm2WnLXzW51KsQ==
 
+bn.js@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.0.tgz#358860674396c6997771a9d051fcc1b57d4ae002"
+  integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
+
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -2138,6 +2264,13 @@ bs-logger@0.x:
   dependencies:
     fast-json-stable-stringify "2.x"
 
+bs58@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/bs58/-/bs58-3.1.0.tgz#d4c26388bf4804cac714141b1945aa47e5eb248e"
+  integrity sha1-1MJjiL9IBMrHFBQbGUWqR+XrJI4=
+  dependencies:
+    base-x "^1.1.0"
+
 bs58@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/bs58/-/bs58-4.0.1.tgz#be161e76c354f6f788ae4071f63f34e8c4f0a42a"
@@ -2176,6 +2309,14 @@ buffer-xor@^1.0.3:
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
   integrity sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk=
 
+buffer@^5.1.0:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
+  integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.1.13"
+
 buffer@^5.2.1:
   version "5.4.0"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.4.0.tgz#33294f5c1f26e08461e528b69fa06de3c45cbd8c"
@@ -2199,6 +2340,14 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+call-bind@^1.0.0, call-bind@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/call-bind/-/call-bind-1.0.2.tgz#b1d4e89e688119c3c9a903ad30abb2f6a919be3c"
+  integrity sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==
+  dependencies:
+    function-bind "^1.1.1"
+    get-intrinsic "^1.0.2"
+
 callsites@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-3.1.0.tgz#b3630abd8943432f54b3f0519238e33cd7df2f73"
@@ -2226,6 +2375,11 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
+cbor-sync@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/cbor-sync/-/cbor-sync-1.0.4.tgz#5a11a1ab75c2a14d1af1b237fd84aa8c1593662f"
+  integrity sha512-GWlXN4wiz0vdWWXBU71Dvc1q3aBo0HytqwAZnXF1wOwjqNnDWA1vZ1gDMFLlqohak31VQzmhiYfiCX5QSSfagA==
+
 chalk@^2.0.0:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
@@ -2445,6 +2599,13 @@ crc-32@^1.2.0:
     exit-on-epipe "~1.0.1"
     printj "~1.1.0"
 
+crc@^3.8.0:
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/crc/-/crc-3.8.0.tgz#ad60269c2c856f8c299e2c4cc0de4556914056c6"
+  integrity sha512-iX3mfgcTMIq3ZKLIsVFAbv7+Mc10kxabAGQb8HvjA1o3T1PIYprbakQ65d3I+2HGHt6nSKkM9PYjgoJO2KcFBQ==
+  dependencies:
+    buffer "^5.1.0"
+
 create-hash@^1.1.0, create-hash@^1.1.2, create-hash@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
@@ -2738,7 +2899,7 @@ ecc-jsbn@~0.1.1:
     jsbn "~0.1.0"
     safer-buffer "^2.1.0"
 
-elliptic@6.5.4, elliptic@^6.4.0, elliptic@^6.4.1, elliptic@^6.5.2:
+elliptic@6.5.4, elliptic@^6.4.0, elliptic@^6.4.1, elliptic@^6.5.2, elliptic@^6.5.4:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
   integrity sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==
@@ -2811,6 +2972,32 @@ es-abstract@^1.17.0, es-abstract@^1.17.0-next.1, es-abstract@^1.17.5:
     string.prototype.trimend "^1.0.1"
     string.prototype.trimstart "^1.0.1"
 
+es-abstract@^1.18.5:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.19.1.tgz#d4885796876916959de78edaa0df456627115ec3"
+  integrity sha512-2vJ6tjA/UfqLm2MPs7jxVybLoB8i1t1Jd9R3kISld20sIxPcTbLuggQOUxeWeAvIUkduv/CfMjuh4WmiXr2v9w==
+  dependencies:
+    call-bind "^1.0.2"
+    es-to-primitive "^1.2.1"
+    function-bind "^1.1.1"
+    get-intrinsic "^1.1.1"
+    get-symbol-description "^1.0.0"
+    has "^1.0.3"
+    has-symbols "^1.0.2"
+    internal-slot "^1.0.3"
+    is-callable "^1.2.4"
+    is-negative-zero "^2.0.1"
+    is-regex "^1.1.4"
+    is-shared-array-buffer "^1.0.1"
+    is-string "^1.0.7"
+    is-weakref "^1.0.1"
+    object-inspect "^1.11.0"
+    object-keys "^1.1.1"
+    object.assign "^4.1.2"
+    string.prototype.trimend "^1.0.4"
+    string.prototype.trimstart "^1.0.4"
+    unbox-primitive "^1.0.1"
+
 es-abstract@^1.5.0:
   version "1.13.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.13.0.tgz#ac86145fdd5099d8dd49558ccba2eaf9b88e24e9"
@@ -2841,6 +3028,11 @@ es-to-primitive@^1.2.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
+es6-object-assign@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.1.0.tgz#c2c3582656247c39ea107cb1e6652b6f9f24523c"
+  integrity sha1-wsNYJlYkfDnqEHyx5mUrb58kUjw=
+
 escalade@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
@@ -3406,6 +3598,17 @@ ethereumjs-util@^7.0.2:
     ethjs-util "0.1.6"
     rlp "^2.2.4"
 
+ethereumjs-util@^7.0.7, ethereumjs-util@^7.0.8, ethereumjs-util@^7.1.3:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.3.tgz#b55d7b64dde3e3e45749e4c41288238edec32d23"
+  integrity sha512-y+82tEbyASO0K0X1/SRhbJJoAlfcvq8JbrG4a5cjrOks7HS/36efU/0j2flxCPOUM++HFahk33kr/ZxyC4vNuw==
+  dependencies:
+    "@types/bn.js" "^5.1.0"
+    bn.js "^5.1.2"
+    create-hash "^1.1.2"
+    ethereum-cryptography "^0.1.3"
+    rlp "^2.2.4"
+
 ethereumjs-util@^7.1.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.0.tgz#e2b43a30bfcdbcb432a4eb42bd5f2393209b3fd5"
@@ -3881,6 +4084,11 @@ for-in@^1.0.2:
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
   integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
 
+foreach@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
+  integrity sha1-C+4AUBiusmDQo6865ljdATbsG5k=
+
 forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
@@ -3963,6 +4171,15 @@ get-caller-file@^2.0.1, get-caller-file@^2.0.5:
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
   integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
 
+get-intrinsic@^1.0.2, get-intrinsic@^1.1.0, get-intrinsic@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/get-intrinsic/-/get-intrinsic-1.1.1.tgz#15f59f376f855c446963948f0d24cd3637b4abc6"
+  integrity sha512-kWZrnVM42QCiEA2Ig1bG8zjoIMOgxWwYCEeNdwY6Tv/cOSeGpcoX4pXHfKUxNKVoArnrEr2e9srnAxxGIraS9Q==
+  dependencies:
+    function-bind "^1.1.1"
+    has "^1.0.3"
+    has-symbols "^1.0.1"
+
 get-stream@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
@@ -3982,6 +4199,14 @@ get-stream@^6.0.0:
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-6.0.1.tgz#a262d8eef67aced57c2852ad6167526a43cbf7b7"
   integrity sha512-ts6Wi+2j3jQjqi70w5AlN8DFnkSwC+MqmxEzdEALB2qXZYV3X/b1CTfgPLGJNMeAWxdPfU8FO1ms3NUfaHCPYg==
 
+get-symbol-description@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/get-symbol-description/-/get-symbol-description-1.0.0.tgz#7fdb81c900101fbd564dd5f1a30af5aadc1e58d6"
+  integrity sha512-2EmdH1YvIQiZpltCNgkuiUnyukzxM/R6NDJX31Ke3BG1Nq5b0S2PhX59UKi9vZpPDQVdqn+1IcaAwnzTT5vCjw==
+  dependencies:
+    call-bind "^1.0.2"
+    get-intrinsic "^1.1.1"
+
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
@@ -4116,6 +4341,11 @@ har-validator@~5.1.0, har-validator@~5.1.3:
     ajv "^6.5.5"
     har-schema "^2.0.0"
 
+has-bigints@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/has-bigints/-/has-bigints-1.0.1.tgz#64fe6acb020673e3b78db035a5af69aa9d07b113"
+  integrity sha512-LSBS2LjbNBTf6287JEbEzvJgftkF5qFkmCo9hDRpAzKhUOlJ+hx8dd4USs00SgsUNwc4617J9ki5YtEClM2ffA==
+
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -4136,6 +4366,18 @@ has-symbols@^1.0.1:
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.1.tgz#9f5214758a44196c406d9bd76cebf81ec2dd31e8"
   integrity sha512-PLcsoqu++dmEIZB+6totNFKq/7Do+Z0u4oT0zKOJNl3lYK6vGwwu2hjHs+68OEZbTjiUE9bgOABXbP/GvrS0Kg==
 
+has-symbols@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.2.tgz#165d3070c00309752a1236a479331e3ac56f1423"
+  integrity sha512-chXa79rL/UC2KlX17jo3vRGz0azaWEx5tGqZg5pO3NUyEJVB17dMruQlzCCOfUvElghKcm5194+BCRvi2Rv/Gw==
+
+has-tostringtag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-tostringtag/-/has-tostringtag-1.0.0.tgz#7e133818a7d394734f941e73c3d3f9291e658b25"
+  integrity sha512-kFjcSNhnlGV1kyoGk7OXKSawH5JOb/LzUc5w9B02hOTO0dfFRjbHQKvg1d6cf3HbeUmtU9VbbV3qzZ2Teh97WQ==
+  dependencies:
+    has-symbols "^1.0.2"
+
 has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
@@ -4195,6 +4437,15 @@ hash.js@1.1.7, hash.js@^1.0.0, hash.js@^1.0.3, hash.js@^1.1.7:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.1"
 
+hdkey@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/hdkey/-/hdkey-2.0.1.tgz#0a211d0c510bfc44fa3ec9d44b13b634641cad74"
+  integrity sha512-c+tl9PHG9/XkGgG0tD7CJpRVaE0jfZizDNmnErUAKQ4EjQSOcOUcV3EN9ZEZS8pZ4usaeiiK0H7stzuzna8feA==
+  dependencies:
+    bs58check "^2.1.2"
+    safe-buffer "^5.1.1"
+    secp256k1 "^4.0.0"
+
 hmac-drbg@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
@@ -4261,6 +4512,11 @@ idna-uts46-hx@^2.3.1:
   dependencies:
     punycode "2.1.0"
 
+ieee754@^1.1.13:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
+  integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
+
 ieee754@^1.1.4:
   version "1.1.13"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.13.tgz#ec168558e95aa181fd87d37f55c32bbcb6708b84"
@@ -4333,6 +4589,15 @@ inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.1,
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
+internal-slot@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/internal-slot/-/internal-slot-1.0.3.tgz#7347e307deeea2faac2ac6205d4bc7d34967f59c"
+  integrity sha512-O0DB1JC/sPyZl7cIo78n5dR7eUSwwpYPiXRhTzNxZVAMUuB8vlnRFyLxdrVToks6XPLVnFfbzaVd5WLjhgg+vA==
+  dependencies:
+    get-intrinsic "^1.1.0"
+    has "^1.0.3"
+    side-channel "^1.0.4"
+
 interpret@^1.0.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.4.0.tgz#665ab8bc4da27a774a40584e812e3e0fa45b1a1e"
@@ -4357,11 +4622,34 @@ is-accessor-descriptor@^1.0.0:
   dependencies:
     kind-of "^6.0.0"
 
+is-arguments@^1.0.4:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/is-arguments/-/is-arguments-1.1.1.tgz#15b3f88fda01f2a97fec84ca761a560f123efa9b"
+  integrity sha512-8Q7EARjzEnKpt/PCD7e1cgUS0a6X8u5tdSiMqXhojOdoV9TsMsiO+9VLC5vAmO8N7/GmXn7yjR8qnA6bVAEzfA==
+  dependencies:
+    call-bind "^1.0.2"
+    has-tostringtag "^1.0.0"
+
 is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
   integrity sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=
 
+is-bigint@^1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-bigint/-/is-bigint-1.0.4.tgz#08147a1875bc2b32005d41ccd8291dffc6691df3"
+  integrity sha512-zB9CruMamjym81i2JZ3UMn54PKGsQzsJeo6xvN3HJJ4CAsQNB6iRutp2To77OfCNuoxspsIhzaPoO1zyCEhFOg==
+  dependencies:
+    has-bigints "^1.0.1"
+
+is-boolean-object@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/is-boolean-object/-/is-boolean-object-1.1.2.tgz#5c6dc200246dd9321ae4b885a114bb1f75f63719"
+  integrity sha512-gDYaKHJmnj4aWxyj6YHyXVpdQawtVLHU5cb+eztPGczf6cjuTdwve5ZIEfgXqH4e57An1D1AKf8CZ3kYrQRqYA==
+  dependencies:
+    call-bind "^1.0.2"
+    has-tostringtag "^1.0.0"
+
 is-buffer@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
@@ -4377,6 +4665,11 @@ is-callable@^1.2.0:
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.0.tgz#83336560b54a38e35e3a2df7afd0454d691468bb"
   integrity sha512-pyVD9AaGLxtg6srb2Ng6ynWJqkHU9bEM087AKck0w8QwDarTfNcpIYoU8x8Hv2Icm8u6kFJM18Dag8lyqGkviw==
 
+is-callable@^1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.4.tgz#47301d58dd0259407865547853df6d61fe471945"
+  integrity sha512-nsuwtxZfMX67Oryl9LCQ+upnC0Z0BgpwntpS89m1H/TLF0zNfzfLMV/9Wa/6MZsj0acpEjAO0KF1xT6ZdLl95w==
+
 is-ci@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-2.0.0.tgz#6bc6334181810e04b5c22b3d589fdca55026404c"
@@ -4496,6 +4789,13 @@ is-generator-fn@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-2.1.0.tgz#7d140adc389aaf3011a8f2a2a4cfa6faadffb118"
   integrity sha512-cTIB4yPYL/Grw0EaSzASzg6bBy9gqCofvWN8okThAYIxKJZC+udlRAmGbM0XLeniEJSs8uEgHPGuHSe1XsOLSQ==
 
+is-generator-function@^1.0.7:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.10.tgz#f1558baf1ac17e0deea7c0415c438351ff2b3c72"
+  integrity sha512-jsEjy9l3yiXEQ+PsXdmBwEPcOxaXWLspKdplFUVI9vq1iZgIekeC0L167qeu86czQaxed3q/Uzuw0swL0irL8A==
+  dependencies:
+    has-tostringtag "^1.0.0"
+
 is-glob@^4.0.0, is-glob@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.1.tgz#7567dbe9f2f5e2467bc77ab83c4a29482407a5dc"
@@ -4508,6 +4808,26 @@ is-hex-prefixed@1.0.0:
   resolved "https://registry.yarnpkg.com/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz#7d8d37e6ad77e5d127148913c573e082d777f554"
   integrity sha1-fY035q135dEnFIkTxXPggtd39VQ=
 
+is-nan@^1.2.1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.3.2.tgz#043a54adea31748b55b6cd4e09aadafa69bd9e1d"
+  integrity sha512-E+zBKpQ2t6MEo1VsonYmluk9NxGrbzpeeLC2xIViuO2EjU2xsXsBPwTr3Ykv9l08UYEVEdWeRZNouaZqF6RN0w==
+  dependencies:
+    call-bind "^1.0.0"
+    define-properties "^1.1.3"
+
+is-negative-zero@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/is-negative-zero/-/is-negative-zero-2.0.2.tgz#7bf6f03a28003b8b3965de3ac26f664d765f3150"
+  integrity sha512-dqJvarLawXsFbNDeJW7zAz8ItJ9cd28YufuuFzh0G8pNHjJMnY08Dv7sYX2uF5UpQOwieAeOExEYAWWfu7ZZUA==
+
+is-number-object@^1.0.4:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/is-number-object/-/is-number-object-1.0.6.tgz#6a7aaf838c7f0686a50b4553f7e54a96494e89f0"
+  integrity sha512-bEVOqiRcvo3zO1+G2lVMy+gkkEm9Yh7cDMRusKKu5ZJKPUYSJwICTKZrNKHA2EbSP0Tu0+6B/emsYNHZyn6K8g==
+  dependencies:
+    has-tostringtag "^1.0.0"
+
 is-number@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
@@ -4551,6 +4871,19 @@ is-regex@^1.1.0:
   dependencies:
     has-symbols "^1.0.1"
 
+is-regex@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.1.4.tgz#eef5663cd59fa4c0ae339505323df6854bb15958"
+  integrity sha512-kvRdxDsxZjhzUX07ZnLydzS1TU/TJlTUHHY4YLL87e37oUA49DfkLqgy+VjFocowy29cKvcSiu+kIv728jTTVg==
+  dependencies:
+    call-bind "^1.0.2"
+    has-tostringtag "^1.0.0"
+
+is-shared-array-buffer@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-shared-array-buffer/-/is-shared-array-buffer-1.0.1.tgz#97b0c85fbdacb59c9c446fe653b82cf2b5b7cfe6"
+  integrity sha512-IU0NmyknYZN0rChcKhRO1X8LYz5Isj/Fsqh8NJOSf+N/hCOTwy29F32Ik7a+QszE63IdvmwdTPDd6cZ5pg4cwA==
+
 is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
@@ -4566,6 +4899,13 @@ is-string@^1.0.5:
   resolved "https://registry.yarnpkg.com/is-string/-/is-string-1.0.5.tgz#40493ed198ef3ff477b8c7f92f644ec82a5cd3a6"
   integrity sha512-buY6VNRjhQMiF1qWDouloZlQbRhDPCebwxSjxMjxgemYT46YMd2NR0/H+fBhEfWX4A/w9TBJ+ol+okqJKFE6vQ==
 
+is-string@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/is-string/-/is-string-1.0.7.tgz#0dd12bf2006f255bb58f695110eff7491eebc0fd"
+  integrity sha512-tE2UXzivje6ofPW7l23cjDOMa09gb7xlAqG6jG5ej6uPV32TlWP3NKPigtaGeHNu9fohccRYvIiZMfOOnOYUtg==
+  dependencies:
+    has-tostringtag "^1.0.0"
+
 is-symbol@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.2.tgz#a055f6ae57192caee329e7a860118b497a950f38"
@@ -4573,11 +4913,36 @@ is-symbol@^1.0.2:
   dependencies:
     has-symbols "^1.0.0"
 
+is-symbol@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.4.tgz#a6dac93b635b063ca6872236de88910a57af139c"
+  integrity sha512-C/CPBqKWnvdcxqIARxyOh4v1UUEOCHpgDa0WYgpKDFMszcrPcffg5uhwSgPCLD2WWxmq6isisz87tzT01tuGhg==
+  dependencies:
+    has-symbols "^1.0.2"
+
+is-typed-array@^1.1.3, is-typed-array@^1.1.7:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/is-typed-array/-/is-typed-array-1.1.8.tgz#cbaa6585dc7db43318bc5b89523ea384a6f65e79"
+  integrity sha512-HqH41TNZq2fgtGT8WHVFVJhBVGuY3AnP3Q36K8JKXUxSxRgk/d+7NjmwG2vo2mYmXK8UYZKu0qH8bVP5gEisjA==
+  dependencies:
+    available-typed-arrays "^1.0.5"
+    call-bind "^1.0.2"
+    es-abstract "^1.18.5"
+    foreach "^2.0.5"
+    has-tostringtag "^1.0.0"
+
 is-typedarray@^1.0.0, is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
+is-weakref@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-weakref/-/is-weakref-1.0.2.tgz#9529f383a9338205e89765e0392efc2f100f06f2"
+  integrity sha512-qctsuLZmIQ0+vSSMfoVvyFe2+GSEvnmZ2ezTup1SBse9+twCCeial6EEi3Nc2KFcf6+qz2FBPnjXsk8xhKSaPQ==
+  dependencies:
+    call-bind "^1.0.2"
+
 is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
@@ -5183,6 +5548,11 @@ js-yaml@^3.13.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+jsbi@^3.1.5:
+  version "3.2.5"
+  resolved "https://registry.yarnpkg.com/jsbi/-/jsbi-3.2.5.tgz#b37bb90e0e5c2814c1c2a1bcd8c729888a2e37d6"
+  integrity sha512-aBE4n43IPvjaddScbvWRA2YlTzKEynHzu7MqOyTipdHucf/VxS63ViCjxYRg86M8Rxwbt/GfzHl1kKERkt45fQ==
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
@@ -6004,11 +6374,24 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
+object-inspect@^1.11.0, object-inspect@^1.9.0:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.12.0.tgz#6e2c120e868fd1fd18cb4f18c31741d0d6e776f0"
+  integrity sha512-Ho2z80bVIvJloH+YzRmpZVQe87+qASmBUKZDWgx9cu+KDrX2ZDH/3tMy+gXbZETVGs2M8YdxObOh7XAtim9Y0g==
+
 object-inspect@^1.7.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.8.0.tgz#df807e5ecf53a609cc6bfe93eac3cc7be5b3a9d0"
   integrity sha512-jLdtEOB112fORuypAyl/50VRVIBIdVQOSUUGQHzJ4xBSbit81zRarz7GThkEFZy1RceYrWYcPcBFPQwHyAc1gA==
 
+object-is@^1.0.1:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/object-is/-/object-is-1.1.5.tgz#b9deeaa5fc7f1846a0faecdceec138e5778f53ac"
+  integrity sha512-3cyDsyHgtmi7I7DfSSI2LDp6SK2lwvtbg0p0R1e0RvTqF5ceGx+K2dfSjm1bKDMVCFEDAQvy+o8c6a7VujOddw==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
 object-keys@^1.0.11, object-keys@^1.0.12, object-keys@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.1.tgz#1c47f272df277f3b1daf061677d9c82e2322c60e"
@@ -6036,6 +6419,16 @@ object.assign@^4.1.0:
     has-symbols "^1.0.0"
     object-keys "^1.0.11"
 
+object.assign@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.2.tgz#0ed54a342eceb37b38ff76eb831a0e788cb63940"
+  integrity sha512-ixT2L5THXsApyiUPYKmW+2EHpXXe5Ii3M+f4e+aJFAHao5amFRW6J0OO6c/LU8Be47utCx2GL89hxGB6XSmKuQ==
+  dependencies:
+    call-bind "^1.0.0"
+    define-properties "^1.1.3"
+    has-symbols "^1.0.1"
+    object-keys "^1.1.1"
+
 object.pick@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
@@ -6846,6 +7239,13 @@ rlp@^2.2.4:
   dependencies:
     bn.js "^4.11.1"
 
+rlp@^2.2.6:
+  version "2.2.7"
+  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.7.tgz#33f31c4afac81124ac4b283e2bd4d9720b30beaf"
+  integrity sha512-d5gdPmgQ0Z+AklL2NVXr/IoSjNZFfTVvQWzL/AM2AOcSzYP2xjlb0AC8YyCLc41MSNf6P6QVtjgPdmVtzb+4lQ==
+  dependencies:
+    bn.js "^5.2.0"
+
 rsvp@^4.8.4:
   version "4.8.5"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-4.8.5.tgz#c8f155311d167f68f21e168df71ec5b083113734"
@@ -6938,6 +7338,15 @@ secp256k1@^3.0.1:
     nan "^2.14.0"
     safe-buffer "^5.1.2"
 
+secp256k1@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/secp256k1/-/secp256k1-4.0.3.tgz#c4559ecd1b8d3c1827ed2d1b94190d69ce267303"
+  integrity sha512-NLZVf+ROMxwtEj3Xa562qgv2BK5e2WNmXPiOdVIPLgs6lyTzMvBq0aWTYMI5XCP9jZMVKOcqZLw/Wc4vDkuxhA==
+  dependencies:
+    elliptic "^6.5.4"
+    node-addon-api "^2.0.0"
+    node-gyp-build "^4.2.0"
+
 secp256k1@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/secp256k1/-/secp256k1-4.0.2.tgz#15dd57d0f0b9fdb54ac1fa1694f40e5e9a54f4a1"
@@ -6999,7 +7408,7 @@ setimmediate@^1.0.5:
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
   integrity sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=
 
-sha.js@^2.4.0, sha.js@^2.4.8:
+sha.js@^2.4.0, sha.js@^2.4.11, sha.js@^2.4.8:
   version "2.4.11"
   resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
   integrity sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==
@@ -7060,6 +7469,15 @@ shiki@^0.9.3:
     onigasm "^2.2.5"
     vscode-textmate "^5.2.0"
 
+side-channel@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/side-channel/-/side-channel-1.0.4.tgz#efce5c8fdc104ee751b25c58d4290011fa5ea2cf"
+  integrity sha512-q5XPytqFEIKHkGdiMIrY10mvLRvnQh42/+GoBlFW3b2LXLE2xxJpZFdm94we0BaoV3RwJyGqg5wS7epxTv0Zvw==
+  dependencies:
+    call-bind "^1.0.0"
+    get-intrinsic "^1.0.2"
+    object-inspect "^1.9.0"
+
 signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
@@ -7321,6 +7739,14 @@ string.prototype.trimend@^1.0.1:
     define-properties "^1.1.3"
     es-abstract "^1.17.5"
 
+string.prototype.trimend@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/string.prototype.trimend/-/string.prototype.trimend-1.0.4.tgz#e75ae90c2942c63504686c18b287b4a0b1a45f80"
+  integrity sha512-y9xCjw1P23Awk8EvTpcyL2NIr1j7wJ39f+k6lvRnSMz+mz9CGz9NYPelDk42kOz6+ql8xjfK8oYzy3jAP5QU5A==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
 string.prototype.trimstart@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/string.prototype.trimstart/-/string.prototype.trimstart-1.0.1.tgz#14af6d9f34b053f7cfc89b72f8f2ee14b9039a54"
@@ -7329,6 +7755,14 @@ string.prototype.trimstart@^1.0.1:
     define-properties "^1.1.3"
     es-abstract "^1.17.5"
 
+string.prototype.trimstart@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/string.prototype.trimstart/-/string.prototype.trimstart-1.0.4.tgz#b36399af4ab2999b4c9c648bd7a3fb2bb26feeed"
+  integrity sha512-jh6e984OBfvxS50tdY2nRZnoC5/mLFKOREQfw8t5yytkoUsJRNxvI/E39qu1sD0OtWI3OC0XgKSmcWwziwYuZw==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -7606,6 +8040,11 @@ tslib@^2.0.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.1.0.tgz#da60860f1c2ecaa5703ab7d39bc05b6bf988b97a"
   integrity sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==
 
+tslib@^2.3.0:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.3.1.tgz#e8a335add5ceae51aa261d32a490158ef042ef01"
+  integrity sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw==
+
 tsutils@^3.17.1:
   version "3.17.1"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.17.1.tgz#ed719917f11ca0dee586272b2ac49e015a2dd759"
@@ -7709,9 +8148,9 @@ typedoc@^0.20.32:
     typedoc-default-themes "^0.12.9"
 
 typescript@~4.2.2:
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.2.tgz#1450f020618f872db0ea17317d16d8da8ddb8c4c"
-  integrity sha512-tbb+NVrLfnsJy3M59lsDgrzWIflR4d4TIUjz+heUnHZwdF7YsrMTKoRERiIvI2lvBG95dfpLxB21WZhys1bgaQ==
+  version "4.2.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.4.tgz#8610b59747de028fda898a8aef0e103f156d0961"
+  integrity sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==
 
 uglify-js@^3.1.4:
   version "3.6.5"
@@ -7721,6 +8160,16 @@ uglify-js@^3.1.4:
     commander "~2.20.3"
     source-map "~0.6.1"
 
+unbox-primitive@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/unbox-primitive/-/unbox-primitive-1.0.1.tgz#085e215625ec3162574dc8859abee78a59b14471"
+  integrity sha512-tZU/3NqK3dA5gpE1KtyiJUrEB0lxnGkMFHptJ7q6ewdZ8s12QrODwNbhIJStmJkd1QDXa1NRA8aF2A1zk/Ypyw==
+  dependencies:
+    function-bind "^1.1.1"
+    has-bigints "^1.0.1"
+    has-symbols "^1.0.2"
+    which-boxed-primitive "^1.0.2"
+
 union-value@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.1.tgz#0b6fe7b835aecda61c6ea4d4f02c14221e109847"
@@ -7781,6 +8230,18 @@ util-deprecate@~1.0.1:
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
 
+util@^0.12.0:
+  version "0.12.4"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.12.4.tgz#66121a31420df8f01ca0c464be15dfa1d1850253"
+  integrity sha512-bxZ9qtSlGUWSOy9Qa9Xgk11kSslpuZwaxCg4sNIDj6FLucDab2JxnHwyNTCpHMtK1MjoQiWQ6DiUMZYbSrO+Sw==
+  dependencies:
+    inherits "^2.0.3"
+    is-arguments "^1.0.4"
+    is-generator-function "^1.0.7"
+    is-typed-array "^1.1.3"
+    safe-buffer "^5.1.2"
+    which-typed-array "^1.1.2"
+
 uuid@^3.3.2:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.3.tgz#4568f0216e78760ee1dbf3a4d2cf53e224112866"
@@ -7951,11 +8412,34 @@ whatwg-url@^8.0.0:
     tr46 "^2.0.2"
     webidl-conversions "^6.1.0"
 
+which-boxed-primitive@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/which-boxed-primitive/-/which-boxed-primitive-1.0.2.tgz#13757bc89b209b049fe5d86430e21cf40a89a8e6"
+  integrity sha512-bwZdv0AKLpplFY2KZRX6TvyuN7ojjr7lwkg6ml0roIy9YeuSr7JS372qlNW18UQYzgYK9ziGcerWqZOmEn9VNg==
+  dependencies:
+    is-bigint "^1.0.1"
+    is-boolean-object "^1.1.0"
+    is-number-object "^1.0.4"
+    is-string "^1.0.5"
+    is-symbol "^1.0.3"
+
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
+which-typed-array@^1.1.2:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/which-typed-array/-/which-typed-array-1.1.7.tgz#2761799b9a22d4b8660b3c1b40abaa7739691793"
+  integrity sha512-vjxaB4nfDqwKI0ws7wZpxIlde1XrLX5uB0ZjpfshgmapJMD7jJWhZI+yToJTqaFByF0eNBcYxbjmCzoRP7CfEw==
+  dependencies:
+    available-typed-arrays "^1.0.5"
+    call-bind "^1.0.2"
+    es-abstract "^1.18.5"
+    foreach "^2.0.5"
+    has-tostringtag "^1.0.0"
+    is-typed-array "^1.1.7"
+
 which@^1.2.9:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"