Simplified user registration

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• receiving, at a computing device, a security token identifier and a request to access one or more resources of the computing device, the security token identifier comprising information that identifies a security token;
• sending, from the computing device to a server computing system, a request to identify domains having a trust relationship with a domain associated with the computing device;
• receiving, at the computing device from the server computing system, a response to the request to identify domains having a trust relationship with the domain associated with the computing device, the response comprising information that identifies one or more domains each having a trust relationship with the domain associated with the computing device;
• determining that an entry in a first data store matches the security token identifier, the first data store associated with a first domain of the one or more domains each having a trust relationship with the domain associated with the computing device;
• in response to the determining that an entry in the first data store matches the security token identifier, updating a local data store at the computing device such that, in the local data store, the security token identifier is associated with first domain information that identifies the first domain;
• and
• granting the requested access to one or more resources of the computing device.

A device comprising:

• one or more processors;
• and
• one or more computer-readable media coupled to the one or more processors, the one or more computer-readable media storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
• receiving, at a computing device, a security token identifier and a request to access one or more resources of the computing device, the security token identifier comprising information that identifies a security token;
• sending, from the computing device to a server computing system, a request to identify domains having a trust relationship with a domain associated with the computing device;
• receiving, at the computing device from the server computing system, a response to the request to identify domains having a trust relationship with the domain associated with the computing device, the response comprising information that identifies one or more domains each having a trust relationship with the domain associated with the computing device;
• determining that an entry in a first data store matches the security token identifier, the first data store associated with a first domain of the one or more domains each having a trust relationship with the domain associated with the computing device;
• in response to the determining that an entry in the first data store matches the security token identifier, updating a local data store at the computing device such that, in the local data store, the security token identifier is associated with first domain information that identifies the first domain;
• and
• granting the requested access to one or more resources of the computing device.