Patent · US Active

Multiple sequential security key encryption-decryption

US7889861B2 · kind B2 · utility

2Cited by
11References
25Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 13, 2007
Grant dateFeb 15, 2011
Priority date
Expiry dateDec 15, 2029

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2209/80
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A method for reducing the memory requirements of executing ciphering processes is disclosed which utilizes sequential key extraction and ciphering. By providing a base key for extracting therefrom multiple first sequential security keys; each key is sequentially extracted and employed. During the process overwriting of each sequential security key occurs with the next subsequently extracted sequential security key. In this manner memory requirements are lowered, power consumption reduced which are important in mobile applications.

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