challengeUserKey method

@Deprecated(r'Use $(ref:challengeKey) instead.') Future<ByteBuffer> challengeUserKey(ByteBuffer challenge, bool registerKey)

Challenges a hardware-backed Enterprise User Key and emits the response as part of a remote attestation protocol. Only useful on Chrome OS and in conjunction with the Verified Access Web API which both issues challenges and verifies responses. A successful verification by the Verified Access Web API is a strong signal of all of the following:

• The current device is a legitimate Chrome OS device.
• The current device is managed by the domain specified during verification.
• The current signed-in user is managed by the domain specified during verification.
• The current device state complies with enterprise user policy. For example, a policy may specify that the device must not be in developer mode.
• The public key emitted by the verification is tightly bound to the hardware of the current device and to the current signed-in user. This function is highly restricted and will fail if the current device is not managed, the current user is not managed, or if this operation has not explicitly been enabled for the caller by enterprise user policy. The Enterprise User Key does not reside in the "user" token and is not accessible by any other API. |challenge|: A challenge as emitted by the Verified Access Web API. |registerKey|: If set, the current Enterprise User Key is registered with the "user" token and relinquishes the Enterprise User Key role. The key can then be associated with a certificate and used like any other signing key. This key is 2048-bit RSA. Subsequent calls to this function will then generate a new Enterprise User Key. |callback|: Called back with the challenge response.

Implementation

@Deprecated(r'Use $(ref:challengeKey) instead.')
Future<ByteBuffer> challengeUserKey(
  ByteBuffer challenge,
  bool registerKey,
) {
  var $completer = Completer<ByteBuffer>();
  $js.chrome.enterprise.platformKeys.challengeUserKey(
    challenge.toJS,
    registerKey,
    (JSArrayBuffer response) {
      if (checkRuntimeLastError($completer)) {
        $completer.complete(response.toDart);
      }
    }.toJS,
  );
  return $completer.future;
}