Abstract: A cloud server and corresponding method for granting access from the cloud server to a client device are disclosed. The method includes steps of authorizing a first device, receiving an authorization voucher request from the first device, generating an authorization voucher for accessing the cloud server, providing the authorization voucher to the first device, receiving the authorization voucher from a second device, granting access to the second device based on the authorization voucher. A method for requesting access to the cloud server includes steps of authorizing a first device, sending an authorization voucher request from the first device to the cloud server, receiving an authorization voucher for accessing the cloud server at the first device, transmitting the authorization voucher from the first device to a second device, transmitting the authorization voucher from the second device to the cloud server, and accessing the cloud server from the second device.