Sign in your user with Credential Manager | Identity

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data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Play" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Play </span> </a> </li> <li class="devsite-nav-item"> <a href="/community" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Community" track-name="community" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Community" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Community </span> </a> </li> <li class="devsite-nav-item"> <a href="/studio" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android Studio" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Android Studio </span> </a> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Authenticate users</span> </div></li> <li class="devsite-nav-item"><a href="/identity/sign-in" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in" ><span class="devsite-nav-text" tooltip>Add a sign-in workflow</span></a></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Add authentication to your app</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/sign-in/credential-manager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/credential-manager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/credential-manager" ><span class="devsite-nav-text" tooltip>Authenticate users with Credential Manager</span></a></li><li class="devsite-nav-item"><a href="/design/ui/mobile/guides/patterns/passkeys" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /design/ui/mobile/guides/patterns/passkeys" track-type="bookNav" track-name="click" track-metadata-eventdetail="/design/ui/mobile/guides/patterns/passkeys" ><span class="devsite-nav-text" tooltip>Authenticate users with passkeys UX guide ⍈</span></a></li><li class="devsite-nav-item"><a href="/identity/sign-in/credential-manager-siwg" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/credential-manager-siwg" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/credential-manager-siwg" ><span class="devsite-nav-text" tooltip>Authenticate users with Sign in with Google</span></a></li><li class="devsite-nav-item"><a href="/identity/sign-in/credential-manager-webview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/credential-manager-webview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/credential-manager-webview" ><span class="devsite-nav-text" tooltip>Authenticate users with WebView</span></a></li><li class="devsite-nav-item"><a href="/identity/autofill/credential-manager-autofill" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/autofill/credential-manager-autofill" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/autofill/credential-manager-autofill" ><span class="devsite-nav-text" tooltip>Integrate Credential Manager with autofill</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/identity/sign-in/restore-credentials" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/restore-credentials" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/restore-credentials" ><span class="devsite-nav-text" tooltip>Restore credentials</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/jetpack/androidx/releases/credentials" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /jetpack/androidx/releases/credentials" track-type="bookNav" track-name="click" track-metadata-eventdetail="/jetpack/androidx/releases/credentials" ><span class="devsite-nav-text" tooltip>androidx.credentials API documentation ⍈</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Migrate an existing app to Credential Manager</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/sign-in/legacy-gsi-migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/legacy-gsi-migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/legacy-gsi-migration" ><span class="devsite-nav-text" tooltip>Migrate from legacy Google Sign-In</span></a></li><li class="devsite-nav-item"><a href="/identity/sign-in/smart-lock-migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/smart-lock-migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/smart-lock-migration" ><span class="devsite-nav-text" tooltip>Migrate from Smart Lock for Passwords</span></a></li><li class="devsite-nav-item"><a href="/identity/sign-in/fido2-migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/fido2-migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/fido2-migration" ><span class="devsite-nav-text" tooltip>Migrate from FIDO2</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Integrate authentication for credential providers</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/sign-in/credential-provider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/credential-provider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/credential-provider" ><span class="devsite-nav-text" tooltip>Integrate Credential Manager with your credential provider solution</span></a></li><li class="devsite-nav-item"><a href="/identity/sign-in/single-tap-biometric" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/single-tap-biometric" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/single-tap-biometric" ><span class="devsite-nav-text" tooltip>Integrate single tap passkey creation and sign-in with biometric prompts</span></a></li><li class="devsite-nav-item"><a href="/identity/sign-in/privileged-apps" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/privileged-apps" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/privileged-apps" ><span class="devsite-nav-text" tooltip>Make calls on behalf of other parties for privileged apps</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Codelabs and learning pathways</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/courses/pathways/passkeys" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /courses/pathways/passkeys" track-type="bookNav" track-name="click" track-metadata-eventdetail="/courses/pathways/passkeys" ><span class="devsite-nav-text" tooltip>Passkeys learning pathway ⍈</span></a></li><li class="devsite-nav-item"><a href="https://codelabs.developers.google.com/credential-manager-api-for-android" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://codelabs.developers.google.com/credential-manager-api-for-android" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://codelabs.developers.google.com/credential-manager-api-for-android" ><span class="devsite-nav-text" tooltip>Simplify auth journeys using Credential Manager ⍈</span></a></li></ul></div></li> <li class="devsite-nav-item"><a href="/identity/sign-in/credential-manager-troubleshooting-guide" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/credential-manager-troubleshooting-guide" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/credential-manager-troubleshooting-guide" ><span class="devsite-nav-text" tooltip>Troubleshoot common errors</span></a></li> <li class="devsite-nav-item"><a href="/identity/sign-in/credential-manager-faq" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/credential-manager-faq" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/credential-manager-faq" ><span class="devsite-nav-text" tooltip>Credential Manager FAQ</span></a></li> <li class="devsite-nav-item"><a href="/identity/sign-in/biometric-auth" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/biometric-auth" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/biometric-auth" ><span class="devsite-nav-text" tooltip>Show a biometric authentication dialog</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Authorize users</span> </div></li> <li class="devsite-nav-item"><a href="https://developers.google.com/identity/authorization/android" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://developers.google.com/identity/authorization/android" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://developers.google.com/identity/authorization/android" ><span class="devsite-nav-text" tooltip>Authorize user access ⍈</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Verify users</span> </div></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Verify users</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="https://developers.google.com/identity/sms-retriever/overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://developers.google.com/identity/sms-retriever/overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://developers.google.com/identity/sms-retriever/overview" ><span class="devsite-nav-text" tooltip>Automate SMS verification ⍈</span></a></li><li class="devsite-nav-item"><a href="https://developers.google.com/identity/phone-number-hint/android" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://developers.google.com/identity/phone-number-hint/android" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://developers.google.com/identity/phone-number-hint/android" ><span class="devsite-nav-text" tooltip>Provide phone number hints to users ⍈</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Handle user data</span> </div></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Autofill personal information</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/autofill" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/autofill" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/autofill" ><span class="devsite-nav-text" tooltip>About autofill</span></a></li><li class="devsite-nav-item"><a href="/identity/autofill/autofill-optimize" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/autofill/autofill-optimize" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/autofill/autofill-optimize" ><span class="devsite-nav-text" tooltip>Optimize your app for autofill</span></a></li><li class="devsite-nav-item"><a href="/identity/autofill/autofill-services" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/autofill/autofill-services" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/autofill/autofill-services" ><span class="devsite-nav-text" tooltip>Build autofill services</span></a></li><li class="devsite-nav-item"><a href="/identity/autofill/ime-autofill" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/autofill/ime-autofill" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/autofill/ime-autofill" ><span class="devsite-nav-text" tooltip>Integrate autofill with keyboards</span></a></li></ul></div></li> <li class="devsite-nav-item"><a href="/identity/app-set-id" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/app-set-id" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/app-set-id" ><span class="devsite-nav-text" tooltip>Identify developer-owned apps</span></a></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Manage user data</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/ad-id" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/ad-id" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/ad-id" ><span class="devsite-nav-text" tooltip>Get a user-resettable advertising ID</span></a></li><li class="devsite-nav-item"><a href="/identity/providers/calendar-provider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/providers/calendar-provider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/providers/calendar-provider" ><span class="devsite-nav-text" tooltip>Manage a user's calendar</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Manage a user's contacts</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/providers/contacts-provider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/providers/contacts-provider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/providers/contacts-provider" ><span class="devsite-nav-text" tooltip>About the contacts provider</span></a></li><li class="devsite-nav-item"><a href="/identity/providers/contacts-provider/retrieve-names" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/providers/contacts-provider/retrieve-names" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/providers/contacts-provider/retrieve-names" ><span class="devsite-nav-text" tooltip>Retrieving a list of contacts</span></a></li><li class="devsite-nav-item"><a href="/identity/providers/contacts-provider/retrieve-details" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/providers/contacts-provider/retrieve-details" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/providers/contacts-provider/retrieve-details" ><span class="devsite-nav-text" tooltip>Retrieving details for a contact</span></a></li><li class="devsite-nav-item"><a href="/identity/providers/contacts-provider/modify-data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/providers/contacts-provider/modify-data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/providers/contacts-provider/modify-data" ><span class="devsite-nav-text" tooltip>Modifying contacts using intents</span></a></li><li class="devsite-nav-item"><a href="/identity/providers/contacts-provider/display-contact-badge" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/providers/contacts-provider/display-contact-badge" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/providers/contacts-provider/display-contact-badge" ><span class="devsite-nav-text" tooltip>Displaying the quick contact badge</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Manage data backups</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/data/backup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/data/backup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/data/backup" ><span class="devsite-nav-text" tooltip>About data backup</span></a></li><li class="devsite-nav-item"><a href="/identity/data/autobackup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/data/autobackup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/data/autobackup" ><span class="devsite-nav-text" tooltip>Back up user data</span></a></li><li class="devsite-nav-item"><a href="/identity/data/keyvaluebackup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/data/keyvaluebackup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/data/keyvaluebackup" ><span class="devsite-nav-text" tooltip>Back up key-value pairs</span></a></li><li class="devsite-nav-item"><a href="/identity/data/testingbackup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/data/testingbackup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/data/testingbackup" ><span class="devsite-nav-text" tooltip>Test backup and restore</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/identity/user-data-ids" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/user-data-ids" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/user-data-ids" ><span class="devsite-nav-text" tooltip>Work with unique identifiers</span></a></li></ul></div></li> </ul> <ul class="devsite-nav-list" menu="Essentials" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Gemini in Android Studio </span> </span> </li> <li class="devsite-nav-item"> <a href="/gemini-in-android" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Learn more" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Learn more </span> </a> </li> <li class="devsite-nav-item"> <a href="/studio" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Get Android Studio" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Get Android Studio </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Get started </span> </span> </li> <li class="devsite-nav-item"> <a href="/get-started/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Hello world" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Hello world </span> </a> </li> <li class="devsite-nav-item"> <a href="/courses" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Training courses" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Training courses </span> </a> </li> <li class="devsite-nav-item"> <a href="/get-started/codelabs" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Tutorials" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Tutorials </span> </a> </li> <li class="devsite-nav-item"> <a href="/kotlin" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Kotlin for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Kotlin for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="https://play.google.com/console/about/guides/monetize/" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Monetization with Play ↗️" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Monetization with Play ↗️ </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Extend by device </span> </span> </li> <li class="devsite-nav-item"> <a href="/adaptive-apps" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Adaptive apps" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Adaptive apps </span> </a> </li> <li class="devsite-nav-item"> <a href="/wear" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Wear OS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Wear OS </span> </a> </li> <li class="devsite-nav-item"> <a href="/cars" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android for Cars" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Android for Cars </span> </a> </li> <li class="devsite-nav-item"> <a href="/tv" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android TV" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Android TV </span> </a> </li> <li class="devsite-nav-item"> <a href="/chrome-os" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: ChromeOS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > ChromeOS </span> </a> </li> <li class="devsite-nav-item"> <a href="/multi-device-development" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Cross-device SDK" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Cross-device SDK </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Build by category </span> </span> </li> <li class="devsite-nav-item"> <a href="/games" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Games" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Games </span> </a> </li> <li class="devsite-nav-item"> <a href="/media" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Camera & Media" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Camera & Media </span> </a> </li> <li class="devsite-nav-item"> <a href="/social-and-messaging" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Social & messaging" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Social & messaging </span> </a> </li> <li class="devsite-nav-item"> <a href="/health-and-fitness" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Health & Fitness" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Health & Fitness </span> </a> </li> <li class="devsite-nav-item"> <a href="/productivity" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Productivity" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Productivity </span> </a> </li> <li class="devsite-nav-item"> <a href="/work/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Enterprise apps" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Enterprise apps </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Get the latest </span> </span> </li> <li class="devsite-nav-item"> <a href="/latest-updates" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Latest updates" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Latest updates </span> </a> </li> <li class="devsite-nav-item"> <a href="/latest-updates/experimental" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Experimental updates" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Experimental updates </span> </a> </li> <li class="devsite-nav-item"> <a href="/studio/preview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android Studio preview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Android Studio preview </span> </a> </li> <li class="devsite-nav-item"> <a href="/jetpack/androidx/versions" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Jetpack & Compose libraries" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Jetpack & Compose libraries </span> </a> </li> <li class="devsite-nav-item"> <a href="/training/wearables/versions/4" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Wear OS preview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Wear OS preview </span> </a> </li> <li class="devsite-nav-item"> <a href="/design-for-safety/privacy-sandbox" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Privacy Sandbox" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Privacy Sandbox </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Design & Plan" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > UI Design </span> </span> </li> <li class="devsite-nav-item"> <a href="/design/ui" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Design for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Design for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/design/ui/mobile" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Mobile" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Mobile </span> </a> </li> <li class="devsite-nav-item"> <a href="/design/ui/large-screens" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Large screens (e.g., tablets)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Large screens (e.g., tablets) </span> </a> </li> <li class="devsite-nav-item"> <a href="/design/ui/widget" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Widgets" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Widgets </span> </a> </li> <li class="devsite-nav-item"> <a href="/design/ui/wear" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Wear OS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Wear OS </span> </a> </li> <li class="devsite-nav-item"> <a href="/design/ui/tv" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android TV" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Android TV </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Architecture </span> </span> </li> <li class="devsite-nav-item"> <a href="/topic/architecture/intro" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Introduction" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Introduction </span> </a> </li> <li class="devsite-nav-item"> <a href="/topic/libraries/view-binding" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Libraries" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Libraries </span> </a> </li> <li class="devsite-nav-item"> <a href="/guide/navigation/navigation-principles" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Navigation" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Navigation </span> </a> </li> <li class="devsite-nav-item"> <a href="/topic/modularization" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Modularization" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Modularization </span> </a> </li> <li class="devsite-nav-item"> <a href="/training/testing/fundamentals" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Testing" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Testing </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Quality </span> </span> </li> <li class="devsite-nav-item"> <a href="/quality" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Overview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Overview </span> </a> </li> <li class="devsite-nav-item"> <a href="/quality/core-value" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Core value" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Core value </span> </a> </li> <li class="devsite-nav-item"> <a href="/quality/user-experience" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: User experience" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > User experience </span> </a> </li> <li class="devsite-nav-item"> <a href="/quality/technical" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Technical quality" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Technical quality </span> </a> </li> <li class="devsite-nav-item"> <a href="/quality/privacy-and-security" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Security" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Security </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > 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</div> <h1 class="devsite-page-title" tabindex="-1"> Sign in your user with Credential Manager </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <devsite-recommendations-dropdown class="nocontent"></devsite-recommendations-dropdown> <div class="devsite-article-body clearfix "> <p><a href="/jetpack/androidx/releases/credentials">Credential Manager</a> is a Jetpack API that supports multiple sign-in methods, such as username and password, passkeys, and federated sign-in solutions (such as Sign-in with Google) in a single API, thus simplifying the integration for developers.</p> <p>Furthermore, for users, Credential Manager unifies the sign-in interface across authentication methods, making it clearer and easier for users to sign into apps, regardless of the method they choose.</p> <aside class="note"><strong>Note:</strong><span> Passkeys are supported only on devices that run Android 9 (API level 28) or higher. On devices that run a version between Android 4.4 (API level 19) and Android 8.1 (API level 27), inclusive, only passwords and Sign in with Google are supported.</span></aside> <p>This page explains the concept of passkeys and the steps to implementing client-side support for authentication solutions, including passkeys, using the Credential Manager API. There is also a separate <a href="/identity/sign-in/credential-manager-faq">FAQ page</a> that provides answers to more detailed, specific questions.</p> <p>Your feedback is a crucial part of improving the Credential Manager API. Share any issues you find or ideas for improving the API using the following link:</p> <p style="margin-top: 8px; margin-bottom: 32px;"> <a href="https://docs.google.com/forms/d/e/1FAIpQLSdlCw9F01l_7wYO4-Yna5rYO1KKS9huAy5NwPp1PCCnf4tPXg/viewform" class="button button-primary">Give feedback</a> </p> <h2 id="about-passkeys" data-text="About passkeys" tabindex="-1">About passkeys</h2> <p><a href="https://developers.google.com/identity/passkeys">Passkeys</a> are a safer and easier replacement for passwords. With passkeys, users can sign in to apps and websites using a biometric sensor (such as a fingerprint or facial recognition), PIN, or pattern. This provides a seamless sign-in experience, freeing your users from having to remember usernames or passwords.</p> <p>Passkeys rely on WebAuthn (Web Authentication), a standard jointly developed by the FIDO Alliance and the World Wide Web Consortium (W3C). WebAuthn uses public-key cryptography to authenticate the user. The website or app that the user is signing into can see and store the public key, but never the private key. The private key is kept secret and safe. And because the key is unique and tied to the website or app, passkeys are un-phishable, adding further security.</p> <p>Credential Manager allows users to create passkeys and store them in <a href="https://support.google.com/accounts/answer/6208650">Google Password Manager</a>.</p> <p>Read <a href="/design/ui/mobile/guides/patterns/passkeys">User authentication with passkeys</a> for guidance on how to implement seamless passkey authentication flows with Credential Manager.</p> <h2 id="prerequisites" data-text="Prerequisites" tabindex="-1">Prerequisites</h2> <aside class="note"><strong>Note:</strong><span> If your app requires non-discoverable <a href="https://developers.google.com/identity/fido/android/native-apps">FIDO credentials</a> or uses physical security keys, you should continue to use FIDO at this time.</span></aside> <p>To use Credential Manager, complete the steps in this section.</p> <h3 id="use-recent-platform-version" data-text="Use a recent platform version" tabindex="-1">Use a recent platform version</h3> <p>Credential Manager is supported on Android 4.4 (API level 19) and higher.</p> <h3 id="add-dependencies" data-text="Add dependencies to your app" tabindex="-1">Add dependencies to your app</h3> <p>Add the following dependencies to your app module's build script:</p> <div> <div class="ds-selector-tabs"><section><h3 class="two-line-tab" tab-label="build.gradle.kts" id="kts" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> dependencies { implementation("androidx.credentials:credentials:1.5.0-beta01") // optional - needed for credentials support from play services, for devices running // Android 13 and below. implementation("androidx.credentials:credentials-play-services-auth:1.5.0-beta01") } </pre> </section><section><h3 class="two-line-tab" tab-label="build.gradle" id="groovy" data-text="Groovy" tabindex="-1">Groovy</h3> <pre class="prettyprint lang-groovy" translate="no" dir="ltr"> dependencies { implementation "androidx.credentials:credentials:1.5.0-beta01" // optional - needed for credentials support from play services, for devices running // Android 13 and below. implementation "androidx.credentials:credentials-play-services-auth:1.5.0-beta01" } </pre> </section></div> </div> <h3 id="proguard" data-text="Preserve classes in ProGuard file" tabindex="-1">Preserve classes in ProGuard file</h3> <p>In your module's <code translate="no" dir="ltr">proguard-rules.pro</code> file, add the following directives:</p> <pre class="devsite-click-to-copy" translate="no" dir="ltr"><code translate="no" dir="ltr">-if class androidx.credentials.CredentialManager -keep class androidx.credentials.playservices.** { *; } </code></pre><aside class="note"><strong>Note:</strong><span> All projects should use the <a href="https://www.youtube.com/watch?v=36peNZUlgzU">latest 1.2 version of androidx.credentials</a>. Earlier versions of androidx.credentials throw an <code translate="no" dir="ltr">UnsupportedOperationException("Post-U not supported yet")</code> exception when run on Android 14.</span></aside> <p>Learn more about how to <a href="/build/shrink-code">shrink, obfuscate, and optimize your app</a>.</p> <h3 id="add-support-dal" data-text="Add support for Digital Asset Links" tabindex="-1">Add support for Digital Asset Links</h3> <p>To enable passkey support for your Android app, associate your app with a website that your app owns. You can declare this association by completing the following steps:</p> <ol> <li><p>Create a Digital Asset Links JSON file. For example, to declare that the website <code translate="no" dir="ltr">https://signin.example.com</code> and an Android app with the package name <code translate="no" dir="ltr">com.example</code> can share sign-in credentials, create a file named <code translate="no" dir="ltr">assetlinks.json</code> with the following content:</p> <pre class="prettyprint lang-json" translate="no" dir="ltr"><code translate="no" dir="ltr">[ { "relation" : [ "delegate_permission/common.handle_all_urls", "delegate_permission/common.get_login_creds" ], "target" : { "namespace" : "android_app", "package_name" : "com.example.android", "sha256_cert_fingerprints" : [ <var translate="no">SHA_HEX_VALUE</var> ] } } ] </code></pre> <p>The <code translate="no" dir="ltr">relation</code> field is an array of one or more strings that describe the relationship being declared. To declare that apps and sites share sign-in credentials, specify the relationships as <code translate="no" dir="ltr">delegate_permission/handle_all_urls</code> and <code translate="no" dir="ltr">delegate_permission/common.get_login_creds</code>.</p> <p>The <code translate="no" dir="ltr">target</code> field is an object that specifies the asset the declaration applies to. The following fields identify a website:</p> <table class="responsive"> <tr> <td><code translate="no" dir="ltr">namespace</code></td> <td><code translate="no" dir="ltr">web</code></td> </tr> <tr> <td><code translate="no" dir="ltr">site</code></td> <td><p>The website's URL, in the format <code translate="no" dir="ltr">https://<var translate="no">domain</var>[:<var translate="no">optional_port</var>]</code>; for example, <code translate="no" dir="ltr">https://www.example.com</code>.</p> <p>The <var translate="no">domain</var> must be fully-qualified., and <var translate="no">optional_port</var> must be omitted when using port 443 for HTTPS.</p> <p>A <code translate="no" dir="ltr">site</code> target can only be a root domain: you cannot limit an app association to a specific subdirectory. Don't include a path in the URL, such as a trailing slash.</p> <p>Subdomains are not considered to match: that is, if you specify the <var translate="no">domain</var> as <code translate="no" dir="ltr">www.example.com</code>, the domain <code translate="no" dir="ltr">www.counter.example.com</code> is not associated with your app. </p> </td> </tr> </table> <p>The following fields identify an Android app:</p> <table class="responsive"> <tr> <td><code translate="no" dir="ltr">namespace</code></td> <td><code translate="no" dir="ltr">android_app</code></td> </tr> <tr> <td><code translate="no" dir="ltr">package_name</code></td> <td>The package name declared in the app's manifest. For example, <code translate="no" dir="ltr">com.example.android</code></td> </tr> <tr> <td><code translate="no" dir="ltr">sha256_cert_fingerprints</code></td> <td>The SHA256 fingerprints of your app's <a href="/studio/publish/app-signing#sign-apk">signing certificate</a>. </td> </tr> </table></li> <li><p>Host the Digital Assets Link JSON file at the following location on the sign-in domain:</p> <pre class="devsite-click-to-copy" translate="no" dir="ltr"><code translate="no" dir="ltr">https://<var translate="no">domain</var>[:<var translate="no">optional_port</var>]/.well-known/assetlinks.json </code></pre> <p>For example, if your sign-in domain is <code translate="no" dir="ltr">signin.example.com</code>, host the JSON file at <code translate="no" dir="ltr">https://signin.example.com/.well-known/assetlinks.json</code>.</p> <p>The MIME type for the Digital Assets Link file needs to be JSON. Make sure the server sends a <code translate="no" dir="ltr">Content-Type: application/json</code> header in the response.</p></li> <li><p>Ensure that your host permits Google to retrieve your Digital Asset Link file. If you have a <code translate="no" dir="ltr">robots.txt</code> file, it must allow the Googlebot agent to retrieve <code translate="no" dir="ltr">/.well-known/assetlinks.json</code>. Most sites can allow any automated agent to retrieve files in the <code translate="no" dir="ltr">/.well-known/</code> path so that other services can access the metadata in those files:</p> <pre class="devsite-click-to-copy" translate="no" dir="ltr"><code translate="no" dir="ltr">User-agent: * Allow: /.well-known/ </code></pre></li> <li><p>Add the following line to the manifest file under <code translate="no" dir="ltr"><application></code>:</p> <pre class="prettyprint lang-xml" translate="no" dir="ltr"><code translate="no" dir="ltr"><meta-data android:name="asset_statements" android:resource="@string/asset_statements" /> </code></pre></li> <li><p>If you are using password sign-in through Credential Manager, follow this step to configure digital asset linking in manifest. <em>This step is not required if you are only using passkeys.</em></p> <p>Declare the association in the Android app. Add an object that specifies the <code translate="no" dir="ltr">assetlinks.json</code> files to load. You must escape any apostrophes and quotation marks you use in the string. For example:</p> <pre class="prettyprint lang-xml" translate="no" dir="ltr"><code translate="no" dir="ltr"><string name="asset_statements" translatable="false"> [{ \"include\": \"https://signin.example.com/.well-known/assetlinks.json\" }] </string> </code></pre><aside class="note"><strong>Note:</strong><span> the <code translate="no" dir="ltr">https://signin.example.com/.well-known/assetlinks.json</code> link must return a 200 HTTP response with a JSON MIME Content-Type header. Returning a 301 or 302 HTTP redirect or a non-JSON Content-Type causes verification to fail. The following is an example showing a request and the related response headers.</span></aside><pre class="devsite-click-to-copy" translate="no" dir="ltr"><code translate="no" dir="ltr">> GET /.well-known/assetlinks.json HTTP/1.1 > User-Agent: curl/7.35.0 > Host: signin.example.com < HTTP/1.1 200 OK < Content-Type: application/json </code></pre></li> </ol> <h2 id="configure" data-text="Configure the Credential Manager" tabindex="-1">Configure the Credential Manager</h2> <p>To configure and initialize a <code translate="no" dir="ltr">CredentialManager</code> object, add logic similar to the following:</p> <div> <div class="ds-selector-tabs"><section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> // Use your app or activity context to instantiate a client instance of // CredentialManager. val credentialManager = CredentialManager.create(context) </pre> </section><section><h3 id="java" data-text="Java" tabindex="-1">Java</h3> <pre class="prettyprint lang-java" translate="no" dir="ltr"> // Use your app or activity context to instantiate a client instance of // CredentialManager. CredentialManager credentialManager = CredentialManager.create(context) </pre> </section></div> </div> <h2 id="indicate_credential_fields" data-text="Indicate credential fields" tabindex="-1">Indicate credential fields</h2> <p>On Android 14 and higher, the <a href="/reference/android/view/View#attr_android:isCredential"><code translate="no" dir="ltr">isCredential</code></a> attribute can be used to indicate credential fields, such as username or password fields. This attribute indicates that this view is a credential field that is intended to work with Credential Manager and third party credential providers, while helping autofill services provide better autofill suggestions. When the app uses the Credential Manager API, the Credential Manager bottom sheet with available credentials is displayed and there's no further need to show autofill's fill dialog for username or password. In a similar way, there's no need to show autofill's save dialog for passwords, as the app will request Credential Manager API to save the credentials.</p> <p>To use the <code translate="no" dir="ltr">isCredential</code> attribute, add it to the relevant Views:</p> <pre class="prettyprint lang-xml" translate="no" dir="ltr"><code translate="no" dir="ltr"><TextView android:layout_width="match_parent" android:layout_height="wrap_content" <strong>android:isCredential="true"</strong> ... /> </code></pre> <h2 id="sign-in" data-text="Sign in your user" tabindex="-1">Sign in your user</h2> <p>To retrieve all the passkey and password options that are associated with the user's account, complete these steps:</p> <ol> <li><p>Initialize the password and passkey authentication options:</p> <div> <div class="ds-selector-tabs"><section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> // Retrieves the user's saved password for your app from their // password provider. val getPasswordOption = GetPasswordOption() // Get passkey from the user's public key credential provider. val getPublicKeyCredentialOption = GetPublicKeyCredentialOption( requestJson = requestJson )</pre> </section><section><h3 id="java" data-text="Java" tabindex="-1">Java</h3> <pre class="prettyprint lang-java" translate="no" dir="ltr"> // Retrieves the user's saved password for your app from their // password provider. GetPasswordOption getPasswordOption = new GetPasswordOption(); // Get passkey from the user's public key credential provider. GetPublicKeyCredentialOption getPublicKeyCredentialOption = new GetPublicKeyCredentialOption(requestJson);</pre> </section></div> </div></li> <li><p>Use the options retrieved from the previous step to build the sign-in request.</p> <aside class="note"><b>Note:</b> Apps shouldn't set the <a href="/reference/kotlin/androidx/credentials/GetCredentialRequest#origin()"><code translate="no" dir="ltr">origin</code></a> field, with the exception of browsers and similarly privileged apps. <a href="/training/sign-in/privileged-apps">Learn more</a>.</aside> <div> <div class="ds-selector-tabs"><section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> val getCredRequest = GetCredentialRequest( listOf(getPasswordOption, getPublicKeyCredentialOption) )</pre> </section><section><h3 id="java" data-text="Java" tabindex="-1">Java</h3> <pre class="prettyprint lang-java" translate="no" dir="ltr"> GetCredentialRequest getCredRequest = new GetCredentialRequest.Builder() .addCredentialOption(getPasswordOption) .addCredentialOption(getPublicKeyCredentialOption) .build();</pre> </section></div> </div></li> <li><p>Launch the sign-in flow:</p> <div> <div class="ds-selector-tabs"><section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> coroutineScope.launch { try { val result = credentialManager.getCredential( // Use an activity-based context to avoid undefined system UI // launching behavior. context = activityContext, request = getCredRequest ) handleSignIn(result) } catch (e : GetCredentialException) { handleFailure(e) } } fun handleSignIn(result: GetCredentialResponse) { // Handle the successfully returned credential. val credential = result.credential when (credential) { is PublicKeyCredential -> { val responseJson = credential.authenticationResponseJson // Share responseJson i.e. a GetCredentialResponse on your server to // validate and authenticate } is PasswordCredential -> { val username = credential.id val password = credential.password // Use id and password to send to your server to validate // and authenticate } is CustomCredential -> { // If you are also using any external sign-in libraries, parse them // here with the utility functions provided. if (credential.type == ExampleCustomCredential.TYPE) { try { val ExampleCustomCredential = ExampleCustomCredential.createFrom(credential.data) // Extract the required credentials and complete the authentication as per // the federated sign in or any external sign in library flow } catch (e: ExampleCustomCredential.ExampleCustomCredentialParsingException) { // Unlikely to happen. If it does, you likely need to update the dependency // version of your external sign-in library. Log.e(TAG, "Failed to parse an ExampleCustomCredential", e) } } else { // Catch any unrecognized custom credential type here. Log.e(TAG, "Unexpected type of credential") } } else -> { // Catch any unrecognized credential type here. Log.e(TAG, "Unexpected type of credential") } } }</pre> </section><section><h3 id="java" data-text="Java" tabindex="-1">Java</h3> <pre class="prettyprint lang-java" translate="no" dir="ltr"> credentialManager.getCredentialAsync( // Use activity based context to avoid undefined // system UI launching behavior activity, getCredRequest, cancellationSignal, <executor>, new CredentialManagerCallback<GetCredentialResponse, GetCredentialException>() { @Override public void onResult(GetCredentialResponse result) { handleSignIn(result); } @Override public void onError(GetCredentialException e) { handleFailure(e); } } ); public void handleSignIn(GetCredentialResponse result) { // Handle the successfully returned credential. Credential credential = result.getCredential(); if (credential instanceof PublicKeyCredential) { String responseJson = ((PublicKeyCredential) credential).getAuthenticationResponseJson(); // Share responseJson i.e. a GetCredentialResponse on your server to validate and authenticate } else if (credential instanceof PasswordCredential) { String username = ((PasswordCredential) credential).getId(); String password = ((PasswordCredential) credential).getPassword(); // Use id and password to send to your server to validate and authenticate } else if (credential instanceof CustomCredential) { if (ExampleCustomCredential.TYPE.equals(credential.getType())) { try { ExampleCustomCredential customCred = ExampleCustomCredential.createFrom(customCredential.getData()); // Extract the required credentials and complete the // authentication as per the federated sign in or any external // sign in library flow } catch (ExampleCustomCredential.ExampleCustomCredentialParsingException e) { // Unlikely to happen. If it does, you likely need to update the // dependency version of your external sign-in library. Log.e(TAG, "Failed to parse an ExampleCustomCredential", e); } } else { // Catch any unrecognized custom credential type here. Log.e(TAG, "Unexpected type of credential"); } } else { // Catch any unrecognized credential type here. Log.e(TAG, "Unexpected type of credential"); } }</pre> </section></div> </div></li> </ol> <aside class="note" id="use-locally"> <p><b>Note:</b> If the call to Credential Manager was triggered by an explicit user action, set <code translate="no" dir="ltr">preferImmediatelyAvailableCredentials</code> to <code translate="no" dir="ltr">false</code>. If Credential Manager was opportunistically called, set <code translate="no" dir="ltr">preferImmediatelyAvailableCredentials</code> to <code translate="no" dir="ltr">true</code>.</p> <p>The <code translate="no" dir="ltr">preferImmediatelyAvailableCredentials</code> option defines whether you prefer to only use locally-available credentials to fulfill the request, instead of credentials from security keys or <a href="https://w3c.github.io/webauthn/#dom-authenticatortransport-hybrid">hybrid</a> key flows. This value is <code translate="no" dir="ltr">false</code> by default.</p> <p>If you set <code translate="no" dir="ltr">preferImmediatelyAvailableCredentials</code> to <code translate="no" dir="ltr">true</code> and there are no immediately available credentials, Credential Manager won't show any UI and the request will fail immediately, returning <a href="#handle-exceptions"><code translate="no" dir="ltr">NoCredentialException</code></a> for get requests and <code translate="no" dir="ltr">CreateCredentialNoCreateOptionException</code> for create requests. This is recommended when calling the Credential Manager API opportunistically, such as when first opening the app.</p> </aside> <p>The following example shows how to format the JSON request when you get a passkey:</p> <pre class="prettyprint lang-json" translate="no" dir="ltr"><code translate="no" dir="ltr">{ "challenge": "T1xCsnxM2DNL2KdK5CLa6fMhD7OBqho6syzInk_n-Uo", "allowCredentials": [], "timeout": 1800000, "userVerification": "required", "rpId": "credential-manager-app-test.glitch.me" } </code></pre> <p>The following example shows how a JSON response might look after you get a public key credential:</p> <pre class="prettyprint lang-json" translate="no" dir="ltr"><code translate="no" dir="ltr">{ "id": "KEDetxZcUfinhVi6Za5nZQ", "type": "public-key", "rawId": "KEDetxZcUfinhVi6Za5nZQ", "response": { "clientDataJSON": "eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdlIjoiVDF4Q3NueE0yRE5MMktkSzVDTGE2Zk1oRDdPQnFobzZzeXpJbmtfbi1VbyIsIm9yaWdpbiI6ImFuZHJvaWQ6YXBrLWtleS1oYXNoOk1MTHpEdll4UTRFS1R3QzZVNlpWVnJGUXRIOEdjVi0xZDQ0NEZLOUh2YUkiLCJhbmRyb2lkUGFja2FnZU5hbWUiOiJjb20uZ29vZ2xlLmNyZWRlbnRpYWxtYW5hZ2VyLnNhbXBsZSJ9", "authenticatorData": "j5r_fLFhV-qdmGEwiukwD5E_5ama9g0hzXgN8thcFGQdAAAAAA", "signature": "MEUCIQCO1Cm4SA2xiG5FdKDHCJorueiS04wCsqHhiRDbbgITYAIgMKMFirgC2SSFmxrh7z9PzUqr0bK1HZ6Zn8vZVhETnyQ", "userHandle": "2HzoHm_hY0CjuEESY9tY6-3SdjmNHOoNqaPDcZGzsr0" } } </code></pre> <h3 id="handle-exceptions" data-text="Handle exceptions when no credentials are available" tabindex="-1">Handle exceptions when no credentials are available</h3> <p>In some cases, the user may not have any credentials available, or the user may not grant consent to using an available credential. If <a href="/reference/androidx/credentials/CredentialManager#getCredential(android.content.Context,androidx.credentials.GetCredentialRequest)"><code translate="no" dir="ltr">getCredential()</code></a> is invoked and no credentials are not found, a <a href="/reference/kotlin/androidx/credentials/exceptions/NoCredentialException"><code translate="no" dir="ltr">NoCredentialException</code></a> is returned. If this happens, your code should handle the <code translate="no" dir="ltr">NoCredentialException</code> instances.</p> <div class="ds-selector-tabs" data-ds-scope="code-sample"> <section><h3 id="kotlin_1" data-text="Kotlin" tabindex="-1">Kotlin</h3><pre class="prettyprint lang-kotlin" translate="no" dir="ltr"><code translate="no" dir="ltr">try { val credential = credentialManager.getCredential(credentialRequest) } catch (e: NoCredentialException) { Log.e("CredentialManager", "No credential available", e) } </code></pre></section> <section><h3 id="java_1" data-text="Java" tabindex="-1">Java</h3><pre class="prettyprint lang-java" translate="no" dir="ltr"><code translate="no" dir="ltr">try { Credential credential = credentialManager.getCredential(credentialRequest); } catch (NoCredentialException e) { Log.e("CredentialManager", "No credential available", e); } </code></pre></section> </div> <p>On Android 14 or higher, you can reduce latency when showing the account selector by using the <a href="/reference/androidx/credentials/CredentialManager#prepareGetCredential(androidx.credentials.GetCredentialRequest)"><code translate="no" dir="ltr">prepareGetCredential()</code></a> method before calling <code translate="no" dir="ltr">getCredential()</code>.</p> <div class="ds-selector-tabs" data-ds-scope="code-sample"> <section><h3 id="kotlin_2" data-text="Kotlin" tabindex="-1">Kotlin</h3><pre class="prettyprint lang-kotlin" translate="no" dir="ltr"><code translate="no" dir="ltr">val response = credentialManager.prepareGetCredential( GetCredentialRequest( listOf( <getPublicKeyCredentialOption>, <getPasswordOption> ) ) } </code></pre></section> <section><h3 id="java_2" data-text="Java" tabindex="-1">Java</h3><pre class="prettyprint lang-java" translate="no" dir="ltr"><code translate="no" dir="ltr">GetCredentialResponse response = credentialManager.prepareGetCredential( new GetCredentialRequest( Arrays.asList( new PublicKeyCredentialOption(), new PasswordOption() ) ) ); </code></pre></section> </div> <p>The <code translate="no" dir="ltr">prepareGetCredential()</code> method doesn't invoke UI elements. It only helps you perform the preparation work so that you can later launch the remaining get-credential operation (which involves UIs) through the <code translate="no" dir="ltr">getCredential()</code> API.</p> <p>The cached data is returned in a <a href="/reference/androidx/credentials/PrepareGetCredentialResponse"><code translate="no" dir="ltr">PrepareGetCredentialResponse</code></a> object. If there are existing credentials, the results will be cached and you can then later launch the remaining <a href="/reference/androidx/credentials/CredentialManager#getCredential(android.content.Context,androidx.credentials.PrepareGetCredentialResponse.PendingGetCredentialHandle)"><code translate="no" dir="ltr">getCredential()</code></a> API to bring up the account selector with the cached data.</p> <aside class="note"><strong>Note:</strong><span> Since the bottom sheet is launched automatically, don't introduce unexpected wait times in the UI such as network calls. Always fetch one-time challenges and other passkey configurations (such as a relying party IDs) at the beginning of any app session.</span></aside> <h2 id="registration-flows" data-text="Registration flows" tabindex="-1">Registration flows</h2> <p>You can register a user for authentication using either a <a href="#create-passkey">passkey</a> or a <a href="#save-password">password</a>.</p> <aside class="note"><strong>Note:</strong><span> When there is not passkey associated with a registered account, consider <a href="#handle-exceptions">catching an instance of <code translate="no" dir="ltr">NoCredentialException</code></a> to let the user know that they need to create a passkey to support passkey authentication.</span></aside> <h3 id="create-passkey" data-text="Create a passkey" tabindex="-1">Create a passkey</h3> <p>To give users the choice to enroll a passkey and use it for reauthentication, register a user credential using a <code translate="no" dir="ltr">CreatePublicKeyCredentialRequest</code> object.</p> <div> <div class="ds-selector-tabs"><section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> fun createPasskey(requestJson: String, preferImmediatelyAvailableCredentials: Boolean) { val createPublicKeyCredentialRequest = CreatePublicKeyCredentialRequest( // Contains the request in JSON format. Uses the standard <a href="https://w3c.github.io/webauthn/#dictdef-publickeycredentialcreationoptionsjson" class="external">WebAuthn</a> // web JSON spec. requestJson = requestJson, // Defines whether you prefer to use only immediately available // credentials, not hybrid credentials, to fulfill this request. // This value is false by default. preferImmediatelyAvailableCredentials = preferImmediatelyAvailableCredentials, ) // Execute CreateCredentialRequest asynchronously to register credentials // for a user account. Handle success and failure cases with the result and // exceptions, respectively. coroutineScope.launch { try { val result = credentialManager.createCredential( // Use an activity-based context to avoid undefined system // UI launching behavior context = activityContext, request = createPublicKeyCredentialRequest, ) handlePasskeyRegistrationResult(result) } catch (e : CreateCredentialException){ handleFailure(e) } } } fun handleFailure(e: CreateCredentialException) { when (e) { is CreatePublicKeyCredentialDomException -> { // Handle the passkey DOM errors thrown according to the // WebAuthn spec. handlePasskeyError(e.domError) } is CreateCredentialCancellationException -> { // The user intentionally canceled the operation and chose not // to register the credential. } is CreateCredentialInterruptedException -> { // Retry-able error. Consider retrying the call. } is CreateCredentialProviderConfigurationException -> { // Your app is missing the provider configuration dependency. // Most likely, you're missing the // "credentials-play-services-auth" module. } is CreateCredentialUnknownException -> ... is CreateCredentialCustomException -> { // You have encountered an error from a 3rd-party SDK. If you // make the API call with a request object that's a subclass of // <a href="/reference/kotlin/androidx/credentials/CreateCustomCredentialRequest">CreateCustomCredentialRequest</a> using a 3rd-party SDK, then you // should check for any custom exception type constants within // that SDK to match with e.type. Otherwise, drop or log the // exception. } else -> Log.w(TAG, "Unexpected exception type ${e::class.java.name}") } }</pre> </section><section><h3 id="java" data-text="Java" tabindex="-1">Java</h3> <pre class="prettyprint lang-java" translate="no" dir="ltr"> public void createPasskey(String requestJson, boolean preferImmediatelyAvailableCredentials) { CreatePublicKeyCredentialRequest createPublicKeyCredentialRequest = // `requestJson` contains the request in JSON format. Uses the standard // <a href="https://w3c.github.io/webauthn/#dictdef-publickeycredentialcreationoptionsjson" class="external">WebAuthn</a> web JSON spec. // `preferImmediatelyAvailableCredentials` defines whether you prefer // to only use immediately available credentials, not <a href="https://w3c.github.io/webauthn/#dom-authenticatortransport-hybrid" class="external">hybrid credentials</a>, // to fulfill this request. This value is false by default. new CreatePublicKeyCredentialRequest( requestJson, preferImmediatelyAvailableCredentials); // Execute CreateCredentialRequest asynchronously to register credentials // for a user account. Handle success and failure cases with the result and // exceptions, respectively. credentialManager.createCredentialAsync( // Use an activity-based context to avoid undefined system // UI launching behavior requireActivity(), createPublicKeyCredentialRequest, cancellationSignal, executor, new CredentialManagerCallback<CreateCredentialResponse, CreateCredentialException>() { @Override public void onResult(CreateCredentialResponse result) { handleSuccessfulCreatePasskeyResult(result); } @Override public void onError(CreateCredentialException e) { if (e instanceof CreatePublicKeyCredentialDomException) { // Handle the passkey DOM errors thrown according to the // WebAuthn spec. handlePasskeyError(((CreatePublicKeyCredentialDomException)e).getDomError()); } else if (e instanceof CreateCredentialCancellationException) { // The user intentionally canceled the operation and chose not // to register the credential. } else if (e instanceof CreateCredentialInterruptedException) { // Retry-able error. Consider retrying the call. } else if (e instanceof CreateCredentialProviderConfigurationException) { // Your app is missing the provider configuration dependency. // Most likely, you're missing the // "credentials-play-services-auth" module. } else if (e instanceof CreateCredentialUnknownException) { } else if (e instanceof CreateCredentialCustomException) { // You have encountered an error from a 3rd-party SDK. If // you make the API call with a request object that's a // subclass of // <a href="/reference/kotlin/androidx/credentials/CreateCustomCredentialRequest">CreateCustomCredentialRequest</a> using a 3rd-party SDK, // then you should check for any custom exception type // constants within that SDK to match with e.type. // Otherwise, drop or log the exception. } else { Log.w(<var translate="no">TAG</var>, "Unexpected exception type " + e.getClass().getName()); } } } ); }</pre> </section></div> </div> <aside class="note"><b>Note:</b> Apps shouldn't set the <a href="/reference/kotlin/androidx/credentials/CreateCredentialRequest#origin()"><code translate="no" dir="ltr">origin</code></a> field, with the exception of browsers and similarly privileged apps. <a href="/training/sign-in/privileged-apps">Learn more</a>.</aside> <h3 id="format-json-request" data-text="Format the JSON request" tabindex="-1">Format the JSON request</h3> <p>After you create a passkey, you must associate it with a user's account, and store the passkey's public key on your server. The following code example shows an how to format the JSON request when you create a passkey.</p> <p>This <a href="https://medium.com/androiddevelopers/bringing-seamless-authentication-to-your-apps-using-credential-manager-api-b3f0d09e0093#172a">blog post about bringing seamless authentication to your apps</a> shows you how to format your JSON request when you create passkeys and when you authenticate using passkeys. It also explains why passwords aren't an effective authentication solution, how to leverage existing biometric credentials, how to associate your app with a website that you own, how to create passkeys, and how to authenticate using passkeys.</p> <pre class="prettyprint lang-json" translate="no" dir="ltr"><code translate="no" dir="ltr">{ "challenge": "abc123", "rp": { "name": "Credential Manager example", "id": "credential-manager-test.example.com" }, "user": { "id": "def456", "name": "helloandroid@gmail.com", "displayName": "helloandroid@gmail.com" }, "pubKeyCredParams": [ { "type": "public-key", "alg": -7 }, { "type": "public-key", "alg": -257 } ], "timeout": 1800000, "attestation": "none", "excludeCredentials": [ {"id": "ghi789", "type": "public-key"}, {"id": "jkl012", "type": "public-key"} ], "authenticatorSelection": { "authenticatorAttachment": "platform", "requireResidentKey": true, "residentKey": "required", "userVerification": "required" } } </code></pre> <h3 id="set-values" data-text="Set values for authenticatorAttachment" tabindex="-1">Set values for authenticatorAttachment</h3> <p>The <code translate="no" dir="ltr">authenticatorAttachment</code> parameter can only be set at credential creation time. You can specify <code translate="no" dir="ltr">platform</code>, <code translate="no" dir="ltr">cross-platform</code>, or no value. In most cases, no value is recommended.</p> <ul> <li><strong><code translate="no" dir="ltr">platform</code></strong>: To register the user's current device or prompt a password user to upgrade to passkeys after a sign-in, set <code translate="no" dir="ltr">authenticatorAttachment</code> to <code translate="no" dir="ltr">platform</code>.</li> <li><strong><code translate="no" dir="ltr">cross-platform</code></strong>: This value is commonly used when enrolling multi-factor credentials and is not used in a passkey context.</li> <li><strong>No value</strong>: To provide users with the flexibility to create passkeys on their preferred devices (such as in account settings), the <code translate="no" dir="ltr">authenticatorAttachment</code> parameter shouldn't be specified when a user chooses to add a passkey. In most cases, leaving the parameter unspecified is the best option.</li> </ul> <h3 id="prevent-duplicates" data-text="Prevent the creation of duplicate passkeys" tabindex="-1">Prevent the creation of duplicate passkeys</h3> <p>List credential IDs in the optional <a href="https://web.dev/articles/webauthn-exclude-credentials"><code translate="no" dir="ltr">excludeCredentials</code></a> array to prevent the creation of a new passkey if one already exists with the same passkey provider.</p> <h3 id="handle-json-response" data-text="Handle the JSON response" tabindex="-1">Handle the JSON response</h3> <p>The following code snippet shows an example JSON response for creating a public key credential. Learn more about how to handle the <a href="https://web.dev/passkey-registration/#send-the-returned-public-key-credential-to-the-backend">returned public key credential</a>.</p> <pre class="prettyprint lang-json" translate="no" dir="ltr"><code translate="no" dir="ltr">{ "id": "KEDetxZcUfinhVi6Za5nZQ", "type": "public-key", "rawId": "KEDetxZcUfinhVi6Za5nZQ", "response": { "clientDataJSON": "eyJ0eXBlIjoid2ViYXV0aG4uY3JlYXRlIiwiY2hhbGxlbmdlIjoibmhrUVhmRTU5SmI5N1Z5eU5Ka3ZEaVh1Y01Fdmx0ZHV2Y3JEbUdyT0RIWSIsIm9yaWdpbiI6ImFuZHJvaWQ6YXBrLWtleS1oYXNoOk1MTHpEdll4UTRFS1R3QzZVNlpWVnJGUXRIOEdjVi0xZDQ0NEZLOUh2YUkiLCJhbmRyb2lkUGFja2FnZU5hbWUiOiJjb20uZ29vZ2xlLmNyZWRlbnRpYWxtYW5hZ2VyLnNhbXBsZSJ9", "attestationObject": "o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YViUj5r_fLFhV-qdmGEwiukwD5E_5ama9g0hzXgN8thcFGRdAAAAAAAAAAAAAAAAAAAAAAAAAAAAEChA3rcWXFH4p4VYumWuZ2WlAQIDJiABIVgg4RqZaJyaC24Pf4tT-8ONIZ5_Elddf3dNotGOx81jj3siWCAWXS6Lz70hvC2g8hwoLllOwlsbYatNkO2uYFO-eJID6A" } } </code></pre> <h3 id="verify-origin" data-text="Verify origin from client data JSON" tabindex="-1">Verify origin from client data JSON</h3> <p>The <a href="https://www.w3.org/TR/webauthn-2/#dom-collectedclientdata-origin" class="external"><code translate="no" dir="ltr">origin</code></a> represents the application or website that a request comes from, and is used by passkeys to protect against phishing attacks. Your app's server is required to check the client data origin against an allowlist of approved apps and websites. If the server receives a request from an app or website from an unrecognized origin, the request should be rejected.</p> <p>In the Web case, <code translate="no" dir="ltr">origin</code> reflects <a href="https://web.dev/same-site-same-origin/#origin" class="external">the same-site origin</a> where the credential was signed in. For example, given a URL of <code translate="no" dir="ltr">https://www.example.com:8443/store?category=shoes#athletic</code> , the <code translate="no" dir="ltr">origin</code> is <code translate="no" dir="ltr">https://www.example.com:8443</code>.</p> <p>For Android apps, the user agent automatically sets <code translate="no" dir="ltr">origin</code> to the signature of the calling app. This signature should be verified as a match on your server to validate the caller of the passkey API. The Android <code translate="no" dir="ltr">origin</code> is a URI derived from the SHA-256 hash of the APK signing certificate, such as:</p> <pre class="devsite-click-to-copy" translate="no" dir="ltr"><code translate="no" dir="ltr">android:apk-key-hash:<sha256_hash-of-apk-signing-cert> </code></pre> <p>The SHA-256 hashes of the signing certificates from a keystore can be found by running the following terminal command:</p> <pre class="prettyprint lang-sh" translate="no" dir="ltr"><code class="devsite-terminal" translate="no" dir="ltr">keytool -list -keystore <path-to-apk-signing-keystore></code> </pre> <p>The SHA-256 hashes are in a colon-delimited hexadecimal format (<code translate="no" dir="ltr">91:F7:CB:F9:D6:81…</code>), and the Android <code translate="no" dir="ltr">origin</code> values are base64url-encoded. This Python example demonstrates how to convert the hash format to a compatible, colon-separated hexadecimal format:</p> <pre class="prettyprint lang-python" translate="no" dir="ltr"><code translate="no" dir="ltr">import binascii import base64 fingerprint = '91:F7:CB:F9:D6:81:53:1B:C7:A5:8F:B8:33:CC:A1:4D:AB:ED:E5:09:C5' print("android:apk-key-hash:" + base64.urlsafe_b64encode(binascii.a2b_hex(fingerprint.replace(':', ''))).decode('utf8').replace('=', '')) </code></pre> <p>Replace the value of <code translate="no" dir="ltr">fingerprint</code> with your own value. Here is an example result:</p> <pre class="devsite-click-to-copy" translate="no" dir="ltr"><code translate="no" dir="ltr">android:apk-key-hash:kffL-daBUxvHpY-4M8yhTavt5QnFEI2LsexohxrGPYU </code></pre> <p>You can then match that string as an allowed origin on your server. If you have multiple signing certificates, such as certificates for debugging and release, or multiple apps, then repeat the process and accept all those origins as valid on the server.</p> <h3 id="save-password" data-text="Save a user's password" tabindex="-1">Save a user's password</h3> <p>If the user provides a username and password for an authentication flow in your app, you can register a user credential that can be used to authenticate the user. To do so, create a <code translate="no" dir="ltr">CreatePasswordRequest</code> object:</p> <div> <div class="ds-selector-tabs"><section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3> <pre class="prettyprint lang-kotlin" translate="no" dir="ltr"> fun registerPassword(username: String, password: String) { // Initialize a CreatePasswordRequest object. val createPasswordRequest = CreatePasswordRequest(id = username, password = password) // Create credential and handle result. coroutineScope.launch { try { val result = credentialManager.createCredential( // Use an activity based context to avoid undefined // system UI launching behavior. activityContext, createPasswordRequest ) handleRegisterPasswordResult(result) } catch (e: CreateCredentialException) { handleFailure(e) } } }</pre> </section><section><h3 id="java" data-text="Java" tabindex="-1">Java</h3> <pre class="prettyprint lang-java" translate="no" dir="ltr"> void registerPassword(String username, String password) { // Initialize a CreatePasswordRequest object. CreatePasswordRequest createPasswordRequest = new CreatePasswordRequest(username, password); // Register the username and password. credentialManager.createCredentialAsync( // Use an activity-based context to avoid undefined // system UI launching behavior requireActivity(), createPasswordRequest, cancellationSignal, executor, new CredentialManagerCallback<CreateCredentialResponse, CreateCredentialException>() { @Override public void onResult(CreateCredentialResponse result) { handleResult(result); } @Override public void onError(CreateCredentialException e) { handleFailure(e); } } ); }</pre> </section></div> </div> <h3 id="credential-recovery" data-text="Support credential recovery" tabindex="-1">Support credential recovery</h3> <p>If a user no longer has access to a device where they had stored their credentials, they might need to recover from a secure online backup. To learn more about how to support this credential recovery process, read the section titled "Recovering access or adding new devices" in this blog post: <a href="https://security.googleblog.com/2022/10/SecurityofPasskeysintheGooglePasswordManager.html">Security of Passkeys in the Google Password Manager</a>.</p> <h2 id="passkey-endpoints" data-text="Add support for password management tools with passkey endpoints well-known URLs" tabindex="-1">Add support for password management tools with passkey endpoints well-known URLs</h2> <p>For seamless integration and future compatibility with password and credential management tools, we recommend adding support for passkey endpoints well-known URLs. This is an open protocol for aligned parties to formally advertise their support for passkeys and provide direct links for passkey enrollment and management.</p> <ol> <li>For a relying party at <code translate="no" dir="ltr">https://example.com</code>, which has a website plus Android and iOS apps, the well-known URL would be <code translate="no" dir="ltr">https://example.com/.well-known/passkey-endpoints</code>.</li> <li><p>When the URL is queried, the response should use the following schema</p> <pre class="prettyprint lang-json" translate="no" dir="ltr"><code translate="no" dir="ltr">{ "enroll": "https://example.com/account/manage/passkeys/create" "manage": "https://example.com/account/manage/passkeys" } </code></pre></li> <li><p>To have this link open directly in your app instead of on the web, use <a href="/training/app-links">Android app links</a>.</p></li> <li><p>Further details can be found in the <a href="https://github.com/ms-id-standards/MSIdentityStandardsExplainers/blob/main/PasskeyEndpointsWellKnownUrl/explainer.md#example-1">passkey endpoints well-known URL</a> explainer on GitHub.</p></li> </ol> <h2 id="show-info" data-text="Help users manage their passkeys by showing which provider created them" tabindex="-1">Help users manage their passkeys by showing which provider created them</h2> <p>One challenge users face when managing multiple passkeys associated with a given app is identifying the correct passkey for editing or deletion. To assist with this problem, it's recommended that apps and websites include additional information like the provider that created the credential, the creation date and the last-used date in a passkeys list on your app's settings screen.The provider information is obtained by examining the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Web_Authentication_API/Authenticator_data#attestedcredentialdata" class="external">AAGUID</a> associated with the corresponding passkey. AAGUID can be found as part of a passkey's authenticator data.</p> <p>For example, if a user creates a passkey on an Android-powered device using Google Password Manager, the RP then receives an AAGUID which looks something like this: "ea9b8d66-4d01-1d21-3ce4-b6b48cb575d4". The relying party can annotate the passkey in the passkey list to indicate that it was created using Google Password Manager.</p> <p>To map an AAGUID to a passkey provider, RPs can use <a href="https://github.com/passkeydeveloper/passkey-authenticator-aaguids" class="external">a community sourced repository of AAGUIDs</a>. Look up the AAGUID on <a href="https://github.com/passkeydeveloper/passkey-authenticator-aaguids/blob/main/aaguid.json" class="external">the list</a> to find the passkey provider name and icon.</p> <p>Read more about <a href="https://web.dev/articles/webauthn-aaguid" class="external">AAGUID integration</a>.</p> <h2 id="troubleshoot" data-text="Troubleshoot common errors" tabindex="-1">Troubleshoot common errors</h2> <p>Refer to the <a href="/identity/sign-in/credential-manager-troubleshooting-guide">Credential Manager troubleshooting guide</a> for common error codes, descriptions, and information about their causes.</p> <h2 id="additional_resources" data-text="Additional resources" tabindex="-1">Additional resources</h2> <p>To learn more about the Credential Manager API and passkeys, view the following resources:</p> <ul> <li><a href="/design/ui/mobile/guides/patterns/passkeys">Passkeys UX Guide</a></li> <li><a href="https://www.youtube.com/watch?v=36peNZUlgzU">Video: How to reduce reliance on passwords in Android apps with passkey support</a></li> <li><a href="https://codelabs.developers.google.com/credential-manager-api-for-android#0">Codelab: Learn how to simplify auth journeys using Credential Manager API in your Android app</a></li> <li><a href="https://github.com/android/identity-samples/tree/main/CredentialManager" class="external">Sample app: CredentialManager</a> </li> </ul> <devsite-hats-survey class="nocontent" hats-id="VxqvKSur40kxBYCLVTd0SSGykbno" listnr-id="5207477"></devsite-hats-survey> </div> <devsite-recommendations display="in-page" hidden yield> </devsite-recommendations> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-recommendations id="recommendations-link" yield></devsite-recommendations> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Content and code samples on this page are subject to the licenses described in the <a href="/license">Content License</a>. 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