According to reports on December 23, according to financial reports, information from the State Intellectual Property Office shows that Nokia Technologies Co., Ltd. has applied for a patent titled "Device Method and Computer Program", with the publication number CN 119155674 A, and the application date is June 2024. . According to the patent abstract, an apparatus, method and computer program are provided for using an apparatus for user equipment to: encrypt a digital asset using a first key to form an encrypted digital asset; provide encryption to a first network function the digital asset and the index for the encrypted digital asset; and providing the first entity with an identification of the encrypted digital asset.