The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2024
Filed:
Feb. 27, 2020
Nec Corporation, Tokyo, JP;
Batnyam Enkhtaivan, Tokyo, JP;
Pooja Dhomse, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
The invention relates to an information processing apparatus that generates a pair of a first signature key and a first verification key, publishes the first verification key outside the information processing apparatus, acquires a second verification key that is generated and published by an own apparatus, generates a secret value table including a plurality of secret values and indices, transmits signed transmission data obtained by signing transmission data with the first signature key, the transmission data including processing target data comprising at least a part of delivery target data and an index corresponding to a secret value that has been associated with the processing target data based on the secret value table, receives certification data from the own apparatus, verifies a signature of the certification data using the second verification key, and transmits the certification data to a data providing apparatus, when the signature of the certification data is successfully verified using the second verification key.