Arm Limited

Arm IP Limited

Arm Finland Oy

Pelion (finland) Oy

Szymon Sasin

Mikko Johannes Saarnivala

Yongbeom Pak

Hannes Tschofenig

Norbert David

Zachary Shelby

Sampo Ukkola

Markku Lehto

Kari Matias Severinkangas

Simo Mikael Sillankorva

Manuel Pegourie-Gonnard

Hanno Becker

Kalle Petteri Vayrynen

Jaakko Iiro Juhani Kukkohovi

Broadly speaking, the present techniques relate to a machine-implemented method for registering a device with a server, the method performed at the device comprising: applying a data-reducing function to at least one object, object instance, resource and/or resource instance at the device to generate resource data comprising compressed data representative of the at least one object object instance, resource and/or resource instance; transmitting a registration message comprising said resource data to register said device with server.

Device registration mechanism

The present techniques generally describe a computer implemented method for establishing a secure communication session between a client device and a first server, the method performed by the client device comprising: obtaining, from a second server, credential data comprising a session identifier and cryptographic key data; performing a connection handshake with the first server to establish the secure communication session; creating a security state record defining one or more parameters used to establish the secure communication session, and associating the session identifier with the security state record; performing a first resumption handshake with the first server using the session identifier to re-establish the secure communication session.

Handling of machine-to-machine secure sessions

Broadly speaking, the present techniques relate to a computer implemented method for establishing a secure communication session between a client device and a server resource.

Machine to machine communications

Broadly speaking, the present techniques relate to a computer implemented method for enabling template-based registration, the method performed by an intermediary apparatus in communication with a first device and a server, the method comprising: receiving, from the first device, a registration request comprising one or more device identifiers for the first device; determining the availability of template information for the first device based on or in response to the one or more device identifiers; when the template information for the first device is unavailable: generating template information for the first device; or requesting, from the server, the template information.

Template-based registration

The present techniques generally relate to a computer implemented method of accessing a remote resource by an internet-connectable device, the method comprising: receiving, at the device from the bootstrap server, a first plurality of identifiers each identifier associated with a respective connectivity server; selecting, at the device, a first identifier from the first plurality of identifiers; authenticating with a first connectivity server associated with the selected first identifier.

Device bootstrapping

Broadly speaking, the present techniques relate to a computer implemented method for establishing a secure communication session between a client device and a server, the method performed at the client device comprising: obtaining a security object comprising at least one security credential and server connection data for multiple connection options to a first server, wherein the security credential is to be used for each of the multiple connection options; generating, a first server security universal resource identifier (URI), the first Server Security URI comprising server contact information for the first server and a first security binding selected from the server connection data; communicating with the first server using the first Server Security URI and the at least one security credential to establish a secure communication session between the client device and the first server.

The present techniques generally describe a machine-implemented method for configuring a retransmission timer, the method performed at the server including: receiving, from a client, a first handshake message as part of a first handshake with the client; deriving a retransmission parameter from the first handshake message; setting a first wait time of the retransmission timer based on or in response to the retransmission parameter.

Machine-implemented method for configuring a retranmission timer at a client device

Broadly speaking, embodiments of the present technique provide methods, apparatuses and systems for operating a server in communication with a network-attachable electronic device, comprising: storing, in storage accessible by the server, a device registration and a registration lifetime value for the device; receiving at least one message from the device; analysing the message to derive a confidence modifier associated with a message type associated with that message; applying the derived confidence modifier to a calculation of a confidence score for the device; and responsive to the calculation, determining whether a stored registration lifetime value for the device is to be adjusted based upon the confidence score.

Lifetime-based device registration control

Broadly speaking, the present technique provides methods, apparatuses and systems for performing a TLS/DTLS handshake process between machines in a manner that reduces the amount of data sent during the handshake process.

Automatic client device registration

Broadly speaking, embodiments of the present technique provide methods, apparatuses and systems for controlling device resource subscriptions by an LwM2M server, comprising receiving at said LwM2M server a registration request message from a LwM2M client device, the message comprising an enumeration of a plurality of subscribable elements of an object hierarchy of the device; storing, using the LwM2M server, an association between the device and the plurality of subscribable elements; and sending from the LwM2M server to the LwM2M client device a subscription message comprising a unitary compressed expression representing plural ones of said plurality of subscribable elements associated with said device.

Electronic device subscription

Broadly speaking, the present techniques relate to a computer implemented method comprising: receiving, at a first server, one or more device identifiers from a device; determining, with the first server, the availability of a resource template for the device based on or in response to the one or more device identifiers; when the resource template is available for the device: provisioning, from the first server to the device, a template identifier to enable the device to register with a second server using the template identifier.

Template-based registration of devices

A method of bootstrapping between endpoint client and server in a low power wireless network, the method comprising: initiating a bootstrap request from an endpoint client to the server with the bootstrap request including an endpoint client name in an identifier; determining a registry apparatus to be assigned to the endpoint client; accepting the bootstrap request at the server and in response to the bootstrap request providing a security object and an identifier to the endpoint client to identify the assigned registry apparatus.

Bootstrap mechanism for endpoint devices

A method of assigning tenancy to a device during bootstrapping between a device and a server in a network includes transmitting a device identifier to a bootstrap server. The method further includes receiving, at the device, a device server address to enable the device to register with the device server. The tenancy is assigned to the device with the device server address.

Assignment of tenancy to devices

A method for verifying trusted communication between an agent device and an application providing apparatus using a registry apparatus. The registry apparatus maintains a device registry comprising authentication information for uniquely authenticating at least one agent device. The method includes the steps of obtaining from the device registry the authentication information for the agent device identified by a device identifier specified in an the authentication request from the agent device, performing verification of the agent device using the authentication information obtained from the device registry, and if the verification is not successful, transmitting to at least one of the agent device and the application providing apparatus revocation information for denying the trusted communication between the agent device and the application providing apparatus.

Registry apparatus, agent device, application providing apparatus and corresponding methods

A machine implemented method of server initiated registration of a remote device with a second server when the remote device is provisioned or pre-provisioned for registration with a first server, the method comprising: transmitting a bootstrap message from a bootstrap server to the first server, the bootstrap message comprising instruction for registration of the remote device with the second server; receiving the bootstrap message at the first server; sending, from the first server, the bootstrap message to the remote device; and registering the remote device with the second server.

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Oulu, Finland

Szymon Sasin