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:
Jul. 02, 2019
Filed:
Jun. 24, 2014
Nec Corporation, Tokyo, JP;
Kazuhiko Minematsu, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
To achieve one-pass and one-rate authenticated encryption capable of performing parallel processings and totally performing encryption and decode processings by only one encryption function. An authenticated encryption device comprises an authenticated encryption means for applying a two-round Feistel structure using an encryption function assigned with an auxiliary variable for a round function per two blocks to an input plaintext or encrypted text thereby to generate an encrypted text or decoded plaintext. The authenticated encryption means finds an encrypted text chunk CC[i]=(C[i_1], C[i_2]) corresponding to an i-th plaintext chunk MC[i]=(M[i_1], M[i_2]) when dividing a plaintext into chunks per two blocks as:[_1]=_((__1),[_1])xor[_2],[_2]=_((__2),[_1])xor[_1].