Patent · US Expired

Method and system for regenerating a private key for a predetermined asymmetric cryptographic key pair

US7050584B1 · kind B1 · utility

20Cited by

1References

13Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Gerhard Hoffmann · Otterstadt, DE
Klaus Lukas · Munich, DE

Key dates

Filing date	Aug 4, 1999
Grant date	May 23, 2006
Priority date	—
Expiry date	Aug 4, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3247
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

After a key pair with a public key and a corresponding private key has been determined on the basis of an initial value, the initial value is made available to a user. The private key can then be erased. When the user wishes to carry out a cryptographic operation based on the “Public-Key-Technology”, the user enters the initial value into a computer and, upon utilization of the initial value, a regenerated private key is formed, which corresponds to the private key that had been previously formed but was then erased.

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