tdcolvin

val responseJson = credential.authenticationResponseJson

sendAuthenticationResponse(responseJson)

tdcolvin

val localActivity = LocalActivity.current

...

// Get the authentication request JSON from the server, using the code above
val authenticationRequestJson = getPasskeyAuthenticationRequestJson(username)

// Build the request for Credential Manager
val getPublicKeyCredentialOption = GetPublicKeyCredentialOption(
    requestJson = authenticationRequestJson

tdcolvin

suspend fun getPasskeyAuthenticationRequestJson(username: String): String = withContext(
    Dispatchers.IO) {
    val url = HttpUrl.Builder()
        .scheme("https")
        .host("auth.tomcolvin.co.uk")
        .addPathSegment("generate-authentication-options")
        .addQueryParameter("username", username)
        .build()
    val request = Request.Builder()
        .url(url)

tdcolvin

export const expectedOrigin = [
  `https://${rpID}`,
  "android:apk-key-hash:H8aaJx3lOZCaxVnsZU5__ALkVjXJALA11rtegEE0Ldc",   // signed using the keystore in the app folder
];

tdcolvin

[
  {
    "relation" : [
      "delegate_permission/common.handle_all_urls",
      "delegate_permission/common.get_login_creds"
    ],
    "target" : {
      "namespace" : "android_app",
      "package_name" : "com.tdcolvin.passkeyauthdemo",
      "sha256_cert_fingerprints" : [

tdcolvin

val responseJson = credential.authenticationResponseJson

sendAuthenticationResponse(responseJson)

tdcolvin

suspend fun sendRegistrationResponse(
    registrationResponseJson: String,
) = withContext(Dispatchers.IO) {
    val url = HttpUrl.Builder()
        .scheme("https")
        .host("auth.tomcolvin.co.uk")
        .addPathSegment("verify-registration")
        .build()
    val request = Request.Builder()
        .url(url)

tdcolvin

// Get the registration options.
// 'username' here is the requested username for the new account
val registerRequestJson = getPasskeyRegisterRequestJson(username)

// Create an object which holds the options needed to create the passkey
val createPublicKeyCredentialRequest = CreatePublicKeyCredentialRequest(
    requestJson = registerRequestJson,
  
    // Pop up a UI
    preferImmediatelyAvailableCredentials = false

tdcolvin

// Get the registration options from the auth server

suspend fun getPasskeyRegisterRequestJson(username: String): String
    = withContext(Dispatchers.IO) {
        val url = HttpUrl.Builder()
            .scheme("https")
            .host("auth.tomcolvin.co.uk")
            .addPathSegment("generate-registration-options")
            .addQueryParameter("username", username)
            .build()

tdcolvin

val localContext = LocalContext.current
val credentialManager = remember {
    CredentialManager.create(localContext)
}