FirebaseAuth Framework Reference

TOTPSecret

@objc(FIRTOTPSecret)openclassTOTPSecret:NSObject

The subclass of base class MultiFactorAssertion, used to assert ownership of a TOTP(Time-based One Time Password) second factor.

This class is available on iOS and macOS.

  • Returns the shared secret key/seed used to generate time-based one-time passwords.

    Declaration

    Swift

    @objcopenfuncsharedSecretKey()->String

  • Returns a QRCode URL as described inhttps://github.com/google/google-authenticator/wiki/Key-Uri-Format.

    This can be displayed to the user as a QRCode to be scanned into a TOTP app like GoogleAuthenticator.

    Declaration

    Swift

    @objc(generateQRCodeURLWithAccountName:issuer:)openfuncgenerateQRCodeURL(withAccountNameaccountName:String,issuer:String)->String

    Parameters

    accountName

    The name of the account/app.

    issuer

    Issuer of the TOTP(likely the app name).

    Return Value

    A QRCode URL string.

  • Opens the specified QR Code URL in a password manager like iCloud Keychain.

    See more detailshere

    Declaration

    Swift

    @MainActor@objc(openInOTPAppWithQRCodeURL:)openfuncopenInOTPApp(withQRCodeURLqrCodeURL:String)

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Last updated 2025-08-27 UTC.