Patent · US Active

Encryption data integrity check with dual parallel encryption engines

US8171282B2 · kind B2 · utility

5Cited by

0References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Stefan Amann · Eppelheim, DE
Gerhard Banzhaf · Nufringen, DE
Kenneth Wayne Boyd · Tucson, US
Daniel F. Casper · Poughkeepsie, US
John R. Flanagan · Poughkeepsie, US
Jeffrey W. Palm · Rochester, US
Harry M. Yudenfriend · Poughkeepsie, US

Key dates

Filing date	Nov 15, 2007
Grant date	May 1, 2012
Priority date	—
Expiry date	Aug 24, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/125
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An encryption method encrypts a clear text twice using a first encryption engine to produce a first cipher text and a second encryption engine to produce a second cipher text. The method compares the first cipher text with the second cipher text, or compares a checksum of the first cipher text with a checksum of the second cipher text. If the comparison succeeds, the method transmits the data. In some embodiments, the method uses a first instance of an encryption key to produce the first cipher text and a second instance of the encryption key to produce the second cipher text.

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