Abstract: Disclosed are various embodiments for validating that relying parties of a federated identity provider have correctly implemented sign-out functionality. In one approach, a network page is received from a network site that is operated by a relying party of a federated identity provider. It is then determined whether the network page includes code that properly implements a sign-out from the federated identity provider. An action is initiated in response to determining that the network page does not include code that properly implements the sign-out from the federated identity provider.

Abstract: Disclosed are various embodiments for using an audio interface device to facilitate authentication for other devices. A client device presents an authentication code via an output device of the client device. The authentication code is received from a voice interface device. The voice interface device is in an authenticated state for access to an account, and the voice interface device received the authentication code from speech captured by a microphone of the voice interface device following a spoken wake word. The client device is authenticated for access to the account in response to determining that the authentication code received from the voice interface device matches the authentication code presented by the client device.

Abstract: Disclosed are various embodiments for using an audio interface device to facilitate authentication for other devices. An authentication service causes a first client device to present an authentication code via an output device of the first client device. The authentication service receives the authentication code from a second client device. The second client device is in an authenticated state for access to an account, and the second client device received the authentication code from an environmental sensor while in a listening mode. The authentication service authenticates the first client device for access to the account in response to determining that the authentication code received from the second client device matches the authentication code presented by the first client device.

Abstract: Disclosed are various embodiments for validating that relying parties of a federated identity provider have correctly implemented sign-out functionality. In one approach, a network page is received from a network site that is operated by a relying party of a federated identity provider. It is then determined whether the network page includes code that properly implements a sign-out from the federated identity provider. An action is initiated in response to determining that the network page does not include code that properly implements the sign-out from the federated identity provider.

Abstract: Disclosed are various embodiments for validating that relying parties of a federated identity provider have correctly implemented sign-out functionality. In one approach, a network page is received from a network site that is operated by a relying party of a federated identity provider. It is then determined whether the network page includes code that properly implements a sign-out from the federated identity provider. An action is initiated in response to determining that the network page does not include code that properly implements the sign-out from the federated identity provider.

Abstract: The air fuel ratio of an engine adapted to run on a mixture of alcohol and gasoline can be adapted by a method wherein the air fuel ratio is controlled using an ethanol adaptation value, including reducing the enrichment factor from an initial value until a lean switch from rich conditions to lean conditions is detected, determining a first enrichment factor value at which the lean switch occurs, increasing the enrichment factor until a rich switch from lean conditions to rich conditions is detected, determining a second enrichment factor value at which the rich switch occurs, calculating the average value between the first enrichment factor value and the second enrichment factor value, adjusting the air fuel ratio using the average value.

Abstract: The air fuel ratio of an engine adapted to run on a mixture of alcohol and gasoline can be adapted according to the invention, by a method, wherein said air fuel ratio is controlled by means of an ethanol adaptation value, comprising the following steps: reducing the enrichment factor from an initial value until a lean switch from rich conditions to lean conditions is detected, determining a first enrichment factor value at which the lean switch occurs, Increasing the enrichment factor until a rich switch from lean conditions to rich conditions is detected, determining a second enrichment factor value at which the rich switch occurs, calculating the average value between the first enrichment factor value and the second enrichment factor value, adjusting the air fuel ratio by means of said average value.