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:
May. 06, 2025
Filed:
Sep. 07, 2022
Kioxia Corporation, Tokyo, JP;
Takeshi Ishihara, Yokohama, JP;
Yoshihiro Ohba, Kawasaki, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a distribution unit generates a set of first ciphertext fragments based on a first identifier specifying a storage destination of the first ciphertext and a constitution information specifying a constitution of the first ciphertext, generates a deformation command using a second key used for deforming the first ciphertext for at least one fragment belonging to the set of the first ciphertext fragments, and allocates the deformation command to at least one of storage units. A temporary storage unit deforms the first ciphertext fragment by using the second key based on the deformation command, and stores a second ciphertext fragment as a result of the deformation in a non-volatile storage unit instead of the first ciphertext fragment.