feat(CAB): Log hashed keyshares (#4960)

### Description

Log hashed keyshares for CAB so can help a user if they are failing to
restore.

Track analytics event during setup, log in app during restore.

### Test plan

Unit tests added

### Related issues

- Fixes #[ACT-1097]

### Backwards compatibility

Yes

---------

Co-authored-by: Tom McGuire <Mcgtom10@gmail.com>
Co-authored-by: Joe Bergeron <jbergero@alum.mit.edu>

src/analytics/Events.tsx

@@ -126,6 +126,7 @@ export enum KeylessBackupEvents {
   cab_phone_verification_help = 'cab_phone_verification_help',
   cab_phone_verification_help_skip = 'cab_phone_verification_help_skip',
   cab_phone_verification_help_go_back = 'cab_phone_verification_help_go_back',
+  cab_setup_hashed_keyshares = 'cab_setup_hashed_keyshares',
 }
 
 export enum OnboardingEvents {

src/analytics/Properties.tsx

@@ -274,6 +274,10 @@ interface KeylessBackupEventsProperties {
   [KeylessBackupEvents.cab_phone_verification_help]: CommonKeylessBackupProps
   [KeylessBackupEvents.cab_phone_verification_help_skip]: CommonKeylessBackupProps
   [KeylessBackupEvents.cab_phone_verification_help_go_back]: CommonKeylessBackupProps
+  [KeylessBackupEvents.cab_setup_hashed_keyshares]: {
+    hashedKeysharePhone: string
+    hashedKeyshareEmail: string
+  }
 }
 
 interface OnboardingEventsProperties {

src/analytics/docs.ts

@@ -155,6 +155,7 @@ export const eventDocs: Record<AnalyticsEventType, string> = {
   [KeylessBackupEvents.cab_phone_verification_help_skip]: `When a user is on the Help bottom sheet on CAB phone verification screen, and they hit skip`,
   [KeylessBackupEvents.cab_phone_verification_help_go_back]: `When a user is on the Help bottom sheet on CAB phone verification screen, and they hit go back`,
   [KeylessBackupEvents.cab_restore_mnemonic_not_found]: `When a user is restoring from CAB and the mnemonic is not found. Meaning one or more of the user's keyshares/auth methods were incorrect`,
+  [KeylessBackupEvents.cab_setup_hashed_keyshares]: `When a user is setting up CAB, the hashed keyshares from their phone and email are saved`,
   [OnboardingEvents.onboarding_education_scroll]: ``,
   [OnboardingEvents.onboarding_education_step_impression]: ``,
   [OnboardingEvents.create_account_start]: ``,

src/keylessBackup/saga.test.ts

@@ -33,11 +33,14 @@ import { KeylessBackupFlow } from 'src/keylessBackup/types'
 import { getTorusPrivateKey } from 'src/keylessBackup/web3auth'
 import { navigate } from 'src/navigator/NavigationService'
 import { Screens } from 'src/navigator/Screens'
+import Logger from 'src/utils/Logger'
 import { assignAccountFromPrivateKey } from 'src/web3/saga'
 import { walletAddressSelector } from 'src/web3/selectors'
 import { mockPrivateDEK } from 'test/values'
 import { Hex } from 'viem'
 
+jest.mock('src/utils/Logger')
+
 describe('keylessBackup saga', () => {
   beforeEach(() => {
     jest.clearAllMocks()
@@ -181,6 +184,10 @@ describe('keylessBackup saga', () => {
           ])
           .put(keylessBackupCompleted())
           .run()
+        expect(ValoraAnalytics.track).toBeCalledWith('cab_setup_hashed_keyshares', {
+          hashedKeysharePhone: 'a0b7675b466da4059cda48c116c0ead195916e045c6d4e9eff7301242b12b9e0',
+          hashedKeyshareEmail: 'a8ad600b8026607f35817dc15f93a25d9fa6617fae6cfd19b3c927eb633ec331',
+        })
         expect(ValoraAnalytics.track).toBeCalledWith('cab_handle_keyless_backup_success', {
           keylessBackupFlow: KeylessBackupFlow.Setup,
         })
@@ -274,6 +281,10 @@ describe('keylessBackup saga', () => {
           .call(initializeAccountSaga)
           .put(keylessBackupCompleted())
           .run()
+        expect(Logger.info).toHaveBeenCalledWith(
+          'keylessBackup/saga',
+          'Phone keyshare: a0b7675b466da4059cda48c116c0ead195916e045c6d4e9eff7301242b12b9e0, Email keyshare: a8ad600b8026607f35817dc15f93a25d9fa6617fae6cfd19b3c927eb633ec331'
+        )
         expect(ValoraAnalytics.track).toBeCalledWith('cab_handle_keyless_backup_success', {
           keylessBackupFlow: KeylessBackupFlow.Restore,
         })

src/keylessBackup/saga.ts

@@ -28,6 +28,7 @@ import { getTorusPrivateKey } from 'src/keylessBackup/web3auth'
 import { navigate } from 'src/navigator/NavigationService'
 import { Screens } from 'src/navigator/Screens'
 import Logger from 'src/utils/Logger'
+import { calculateSha256Hash } from 'src/utils/random'
 import { assignAccountFromPrivateKey } from 'src/web3/saga'
 import { walletAddressSelector } from 'src/web3/selectors'
 import { call, delay, put, race, select, spawn, take, takeLeading } from 'typed-redux-saga'
@@ -43,6 +44,11 @@ export function* handleValoraKeyshareIssued({
 }: ReturnType<typeof valoraKeyshareIssued>) {
   try {
     const torusKeyshare = yield* waitForTorusKeyshare()
+    const hashedKeyshare = calculateSha256Hash(`CAB_PHONE_KEYSHARE_HASH_${keyshare}`)
+    const hashedTorusKeyshare = calculateSha256Hash(`CAB_EMAIL_KEYSHARE_HASH_${torusKeyshare}`)
+    if (keylessBackupFlow === KeylessBackupFlow.Restore) {
+      Logger.info(TAG, `Phone keyshare: ${hashedKeyshare}, Email keyshare: ${hashedTorusKeyshare}`)
+    }
     const torusKeyshareBuffer = Buffer.from(torusKeyshare, 'hex')
     const valoraKeyshareBuffer = Buffer.from(keyshare, 'hex')
     const { privateKey: encryptionPrivateKey } = yield* call(
@@ -69,6 +75,12 @@ export function* handleValoraKeyshareIssued({
     ValoraAnalytics.track(KeylessBackupEvents.cab_handle_keyless_backup_success, {
       keylessBackupFlow,
     })
+    if (keylessBackupFlow === KeylessBackupFlow.Setup) {
+      ValoraAnalytics.track(KeylessBackupEvents.cab_setup_hashed_keyshares, {
+        hashedKeysharePhone: hashedKeyshare,
+        hashedKeyshareEmail: hashedTorusKeyshare,
+      })
+    }
   } catch (error) {
     Logger.error(TAG, `Error handling keyless backup ${keylessBackupFlow}`, error)
     ValoraAnalytics.track(KeylessBackupEvents.cab_handle_keyless_backup_failed, {