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A device configured to communicate with a second device may register a second device using one of multiple registration modes including a domain-registration mode, a device-registration mode, and a no-registration mode. The domain-registration mode allows the second device to register with the devic

A device configured to communicate with a second device may register a second device using one of multiple registration modes including a domain-registration mode, a device-registration mode, and a no-registration mode. The domain-registration mode allows the second device to register with the device and at least one other device registered with the device, the device-registration mode allows the second device to register with the device and with no other devices, and the no-registration mode does not allow any device to register with the device. The device receives a selection of one of the multiple registration modes and places the device in the selected registration mode.

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1. A first device configured to communicate with a second device in a network, the first device comprising: a processor configured to register a second device using multiple registration modes including a domain-registration mode, a device-registration mode, and a no-registration mode, wherein the d

1. A first device configured to communicate with a second device in a network, the first device comprising: a processor configured to register a second device using multiple registration modes including a domain-registration mode, a device-registration mode, and a no-registration mode, wherein the domain-registration mode allows the second device to register with the first device and at least one other device registered with the first device,the device-registration mode allows the second device to register with the first device and with no other devices, andthe no-registration mode does not allow any device to register with the first device,wherein the processor is further configured to receive a selection of one of the multiple registration modes and place the device in the selected registration mode;a data storage storing a registration key used to register the second device with the first device; anda network interface configured to exchange messages with the second device for registration depending on the selected registration mode via a network. 2. The first device of claim 1, wherein the registration key comprises a device registration key and/or a domain registration key for a domain the first device belongs to. 3. The first device of claim 2, wherein the network is a Wireless High Definition Interface (WHDI) network and the device registration key and the domain registration key are used to register WHDI devices in the WHDI network with the first device. 4. The first device of claim 3, wherein the domain registration key is securely transmitted to the second device via the network interface to register the second device with the first device. 5. The first device of claim 3, wherein the processor is configured to generate a session key using multiple random numbers and to encrypt the domain registration key with the session key for the secure transmission. 6. The first device of claim 1, wherein the processor is further configured to unregister the second device with the first device after a predetermined period of time. 7. The first device of claim 6, wherein the processor is further configured to delete a registration key of the second device that is stored in the first device if the second device is unregistered with the first device. 8. The first device of claim 7, wherein the first device reverts to a default registration mode after the predetermined period of time, wherein the default mode is comprised of one of the domain-registration mode, the device-registration mode, and the no-registration mode. 9. The first device of claim 1, wherein the processor is further configured to verify an identity of a user when the user selects one of multiple registration modes. 10. The first device of claim 1, wherein the first device is a source device in a WHDI network. 11. The first device of claim 1, wherein if the device registration mode is set to the domain-registration mode, the processor is further configured to identify a registration mode requested in a received registration request message, and set the first device to the requested registration mode. 12. A method of multi-mode device registration, the method comprising: receiving a selection of a registration mode at a device, wherein the device is configured to operate in any of multiple registration modes, the multiple registration modes including a domain-registration mode allowing another device to register with the device and at least one other device registered with the device,a device-registration mode allowing another device to register with the device and with no other devices registered with the device, anda no-registration mode not allowing any device to register with the device;setting the device to operate in the selected registration mode, wherein the selected registration mode includes one of the multiple registration modes; andregistering another device with the device if the device is operating in the domain-registration mode or the device-registration mode. 13. The method of claim 12, further comprising: storing a domain registration key in the device; andsecurely exchanging the domain registration key with the another device for registration. 14. The method of claim 12, wherein the device is in a Wireless High Definition Interface (WHDI) network, and registering another device further comprises: registering another WHDI device with the device. 15. The method of claim 12, further comprising: timing-out a registration of the another device within a predetermined period of time. 16. The method of claim 15, further comprising: deleting a domain registration key of the another device that is stored in the device when the registration of the another device with the device times out. 17. The method of claim 12, wherein receiving a selection of a registration mode further comprises: verifying an identity of a user; andallowing a user to select the registration mode if the identity is verified. 18. The method of claim 12, wherein if the device registration mode is set to the domain-registration mode, the method further comprises: identifying a registration mode requested in a received registration request message; andsetting the device to the requested registration mode. 19. A computer readable storage medium storing at least one computer program that when executed performs a method of multi-mode device registration, the method comprising: receiving a selection of a registration mode at a device, wherein the device is configured to operate in any of multiple registration modes, the multiple registration modes including a domain-registration mode allowing another device to register with the device and at least one other device registered with the device,a device-registration mode allowing another device to register with the device and with no other devices registered with the device, anda no-registration mode not allowing any device to register with the device;setting the device to operate in the selected registration mode, wherein the selected registration mode includes one of the multiple registration modes; andregistering another device with the device if the device is operating in the domain-registration mode or the device-registration mode. 20. The computer readable medium of claim 19, wherein the method further comprises: storing a domain registration key in the device; andsecurely exchanging the domain registration key with the another device for registration.