Nokia Technologies Oy

Troels Roennow

Karina Palyutina

Hongwei Li

Khan Baykaner

Enrique Martin Lopez

David Bitauld

Philip Gordon Derrick

Edward FitzGerald

Chris Bower

Antti Niskanen

Kim Blomqvist

Joachim Wabnig

Leo Mikko Johannes Kärkkäinen

Mark Michael Clougherty

Andrew Peter Matthews

Enrique Martin-Lopez

Eric Desorbay

Krishna Dubba

Mu Rong Lin

Enrique Martín López

Edward Fitzgerald

Enrique Martin LÓPEZ

According to an example aspect of the present invention, there is provided a method, comprising: receiving a cryptographic proof of use indicative of decoding of a first media content element by a user device (), receiving a cryptographic first expected proof of use value (), and controlling access to an encrypted second media content element associated with the first media content element on the basis of verification of the received cryptographic proof of use and the first expected proof of use value ().

Media content control

According to an example aspect of the present invention, there is provided a method, comprising: receiving user information provided by a user equipment, associating spatiotemporal information with the user information on the basis of location of at least one wireless access network device in communication with the user equipment, generating a proof of location indication transaction associated with the user information on the basis of the spatiotemporal information, and providing the proof of location indication transaction to a distributed ledger.

Provision of location-specific user information

A method, apparatus and computer program, the method comprising: selecting a transaction entity for a mobile entity wherein a digital attribute account is associated with the mobile entity; and assigning one or more items of digital attributes from the digital attribute account associated with the mobile entity to the selected transaction entity such that the assigned items can only be used for transactions between the mobile entity and the selected transaction entity.

Methods, apparatus and computer programs for enabling transactions using digital attributes

According to an example aspect of the present invention, there is provided a method, comprising: detecting, by a first wireless device, a locally accessible second wireless device, sending a request to the second device for network access via the second wireless device, setting network access terms with the second wireless device for temporary provision of network access for the first wireless device via the second wireless device, exchanging a set of bilateral transactions with the second wireless device for the network access, each of the transactions being associated with a network access resource provided by the second wireless device for the first wireless device according to the set access terms, and causing provision of a public transaction on the basis of the set of bilateral transactions to be distributed within a blockchain network.

Network access sharing

According to an example aspect, there is provided a method for obtaining profile information by a node of a distributed network. Need for providing profile information for a user by a node of a second local private network is detected. A profile request transaction is provided to a public distributed ledger for obtaining profile information associated with the user. Profile information associated with the user is received from a providing node capable of accessing a first private distributed ledger storing the profile information. At least some of the received user profile information is provided for at least one device connected to the second local private network.

Profile information sharing

A technique, comprising: identifying, at an existing node of a distributed ledger network for operation according to a voting-based consensus algorithm, a new candidate node for the distributed ledger network, wherein said identifying is done based on an existing unique identifier unrelated to the distributed ledger network.

Voting-consensus distributed ledger

According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to obtain a document, segmented into a first number of segments (), obtain the first number of outputs of a cryptographic operation, such that for each output, a random value and a document segment are employed to generate an input to the cryptographic operation (), build a Merkle tree based on the outputs of the cryptographic operation (), and store a top hash of the Merkle tree in a block chain ().

Secure document management

According to an example aspect of the present invention, there is provided an apparatus comprising a memory configured to store an identifier of the apparatus, at least one processing core configured to obtain, from sensor information, a service identifier and a session identifier, compile a message addressed to a service provider associated with the service identifier, the message comprising the identifier of the apparatus and the session identifier, and cause transmission of the message toward the service provider.

Sensor-based interaction

A computer-implemented method for secure de-centralized domain name system, the method comprising: recording a domain registration transaction to a blockchain, the domain registration transaction comprising a domain name, a domain primary key corresponding to a domain public key and domain certificate information for a server node; recording a domain security transaction, comprising the domain public key, to the blockchain to generate a domain name record comprising the domain name, an associated IP address, the domain public key and the domain certificate information, wherein the domain security transaction being signed using the domain primary key; transmitting, by a client node, a domain name request to a domain name node; receiving, by the client node, a domain name response from the domain name node, the domain name response comprising the domain public key, the domain certificate information and the associated IP address retrieved from the domain name record of the blockchain; and initiating a secure communication between the client node and the server node using at least one of the domain public key and the domain certificate information.

Secure de-centralized domain name system

A method for utilizing a block chain infrastructure to define a trusted circle including at least two nodes of a plurality of nodes, the method includes receiving, by a first node, notification information identifying a trusted user circle including the first node and a second node, wherein the first node and the second node are configured to define a private block chain; and maintaining private block chain data within the trusted user circle according to pre-defined settings, wherein the private block chain data is divided between nodes of the trusted user circle based on the pre-defined settings.

Method, device and system for utilizing block chain to define trusted circle

Apparatus, method, computer program product and computer readable medium are disclosed for trusted computing. A method includes, at an isolated processor including a trusted execution environment and an isolated storage, receiving data encrypted with a first public key; decrypting the encrypted data with a first private key; performing calculation on the decrypted data by using an approved program; and providing the calculation result, wherein the approved program is authorized by a smart contract, a unique identifier of the smart contract is stored in the isolated processor, both the approved program and the isolated processor are verified by at least one participant of the smart contract, and the first public key and the first private key are generated by the isolated processor.

Method and apparatus for trusted computing

According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to compile a set of transactions in a block chain based resource management system that have taken place after the most recent block was established, establish a new block in the block chain, and in establishing the new block, for transactions associated with verification accept messages and lacking sufficient resources, cause transferring of the lacking resources from verification nodes having sent the verification accept messages.

Management of cryptographic transactions

Methods and apparatus, including computer program products, are provided securing information. In some example embodiments, there is provided a method, which may include receiving, at a user equipment, biometric data from a user of the user equipment; receiving, at the user equipment, sensitive data to be encoded and/or decoded; encoding, based on at least one feature detected in the biometric data, the sensitive data, when the user equipment is in a storage mode; and decoding, based on at least the at least one feature detected in the biometric data, the sensitive data, when the user equipment is in a read mode. Related apparatus, systems, methods, and articles are also described.

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Cambridge, United Kingdom

Troels Roennow