Patent · US Active

Decoding apparatus, decoding capability providing apparatus, method thereof and program

US10163370B2 · kind B2 · utility

0Cited by

0References

11Claims

0Family size

Assignee

NIPPON TELEGRAPH AND TELEPHONE CORPORATION · JP

Inventors

Reo Yoshida · Tokyo, JP
Go Yamamoto · Tokyo, JP
Tetsutaro Kobayashi · Tokyo, JP

Key dates

Filing date	Jun 30, 2014
Grant date	Dec 25, 2018
Priority date	—
Expiry date	Feb 3, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/76
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A decoding apparatus performs self-correcting processing with a decoding capability providing apparatus holding a decoding key for decoding first ciphertext which can be decoded by homomorphic operation to obtain a decoding value of the first ciphertext, and performs non-homomorphic operation using a value corresponding to or deriving from the decoding value of the first ciphertext and an addition value to output plaintext.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.