Nokia Technologies Oy

Gabriela Limonta

Ian Justin Oliver

Jan Kok

Kiti Muller

According to an example embodiment, a technique for data acquisition is provided, comprising: receiving, from an intermediate apparatus, a trusted aggregate data object comprising aggregate data object that comprises aggregate data comprising a respective trusted source data object for one or more data source apparatuses mapped to the intermediate apparatus and an intermediate apparatus quote that is descriptive of one or more aspects of a configuration of the intermediate apparatus upon production of the aggregate data, and an intermediate apparatus signature comprising a digital signature derived based on the aggregate data object using a first key assigned to the intermediate apparatus; and verifying, based at least in part on information received in the trusted aggregate data object, integrity of data included in the trusted aggregate data object and integrity of the intermediate apparatus.

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Espoo, Finland

Gabriela Limonta