Patent · US Active

Encoder, decoder and methods employing partial data encryption

US10320557B2 · kind B2 · utility

2Cited by

2References

18Claims

0Family size

Assignee

GURULOGIC MICROSYSTEMS OY · FI

Inventors

Tuomas Kärkkäinen · Turku, FI
Ossi Kalevo · Kylmäkoski, FI

Key dates

Filing date	Sep 21, 2015
Grant date	Jun 11, 2019
Priority date	—
Expiry date	Sep 21, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/34
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method of encoding and encrypting input data (D1) to generate corresponding encoded and encrypted data (E2) is provided. The input data (D1) is encoded to generate intermediate encoded data streams. The intermediate encoded data streams include at least one critical data stream that is critical and essential for subsequent decoding of one or more remaining data streams of the intermediate encoded data streams. The at least one critical data stream is encrypted using one or more encryption algorithms to generate at least one intermediate encrypted data stream. Subsequently, unencrypted portions of the intermediate encoded data streams are merged together with the at least one intermediate encrypted data stream to generate the encoded and encrypted data (E2).

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