zzoehiijh1ZpZuJ1-SzuVVupenv8r5yuCaFshs/edit#heading=h.dwbqvwmg6ud3))

When a ztunnel receives traffic (authenticated or not) from a workload, it will forward that traffic to the Waypoint proxy **after** applying any `TRANSPORT` layer policies (i.e. `Authorization`s). Thus, if the destination workload has at least the equivalent of a `STRICT` `PeerAuthentication`, unauthenticated traffic will be rejected before it reaches the Waypoint proxy. If the effective policy is `PERMISSIVE` (the default),...

 * ```
 *
 * ## Reactive Authentication
 *
 * Implementations authenticate by returning a follow-up request that includes an authorization
 * header, or they may decline the challenge by returning null. In this case the unauthenticated
 * response will be returned to the caller that triggered it.
 *
 * Implementations should check if the initial request already included an attempt to

    /**
    * Specifies that communication across the authenticated channel
    * should carry a digital signature (message integrity).
    */
    public static final int NTLMSSP_NEGOTIATE_SIGN = 0x00000010;

    /**
    * Specifies that communication across the authenticated channel
    * should be encrypted (message confidentiality).
    */

    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}


def test_incorrect_token():
    response = client.get("/items", headers={"Authorization": "Non-existent testtoken"})
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}


def test_token():

    return client


@needs_py39
def test_no_token(client: TestClient):
    response = client.get("/items")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py39
def test_token(client: TestClient):
    response = client.get("/items", headers={"Authorization": "Bearer testtoken"})

    /**
     * Specifies that communication across the authenticated channel
     * should carry a digital signature (message integrity).
     */
    public static final int NTLMSSP_NEGOTIATE_SIGN = 0x00000010;

    /**
     * Specifies that communication across the authenticated channel
     * should be encrypted (message confidentiality).
     */

  // +optional
  repeated string audiences = 2;
}

// TokenReviewStatus is the result of the token authentication request.
message TokenReviewStatus {
  // Authenticated indicates that the token was associated with a known user.
  // +optional
  optional bool authenticated = 1;

  // User is the UserInfo associated with the provided token.
  // +optional
  optional UserInfo user = 2;

client = TestClient(app)


def test_no_token():
    response = client.get("/items")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_token():
    response = client.get("/items", headers={"Authorization": "Bearer testtoken"})
    assert response.status_code == 200, response.text

  // +optional
  repeated string audiences = 2;
}

// TokenReviewStatus is the result of the token authentication request.
message TokenReviewStatus {
  // Authenticated indicates that the token was associated with a known user.
  // +optional
  optional bool authenticated = 1;

  // User is the UserInfo associated with the provided token.
  // +optional
  optional UserInfo user = 2;

client = TestClient(app)


def test_no_token():
    response = client.get("/items")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_token():
    response = client.get("/items", headers={"Authorization": "Bearer testtoken"})
    assert response.status_code == 200, response.text