Patent ID: 8296564

Claim:
A method implemented in a computing device, the method comprising: obtaining an identifier of a communication channel; obtaining a use policy identifying how an owner of the communication channel indicates the communication channel is used; generating, using a private key of a public/private key pair of the owner, a digital signature over the identifier and the use policy; associating the identifier, the use policy, and the digital signature with the communication channel; retrieving, from a communication channel authenticator of an additional communication channel, an additional identifier of the additional communication channel and an additional use policy identifying how an owner of the additional communication channel indicates the additional communication channel is used; verifying the additional identifier and the additional use policy; checking whether a current security policy of the computing device is satisfied by the additional use policy; and determining, based at least in part on both whether the current security policy is satisfied by the additional use policy and whether the additional identifier and the additional use policy are verified, an access that the computing device is allowed to have to the additional communication channel.