×

Method for data security in a digital telecommunication system

  • US 5,592,554 A
  • Filed: 05/02/1994
  • Issued: 01/07/1997
  • Est. Priority Date: 06/30/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for data security of signal transmission in a digital communication system having a plurality of subscriber equipment, comprising:

  • calculating, during ongoing signal transmission, a public key from a secret key prescribed in a first subscriber equipment;

    communicating, during ongoing signal transmission, said public key from the first subscriber equipment to a second subscriber equipment participating in a connection with the first subscriber equipment, at said second subscriber equipment using the public key for encoding information for matching said first subscriber equipment to transmission modalities that are, during ongoing signal transmission repeatedly modified and that are provided in said second subscriber equipment for said first subscriber equipment.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×