Browse Prior Art Database

HIGH SECURITY ENCRYPTED MOBILE DATA

IP.com Disclosure Number: IPCOM000008079D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2002-May-16

Publishing Venue

Motorola

Related People

Authors:
Mark Chapman Ray Van Tassle

Abstract

APCO's published methods for insuring conti- dentiality of data sent through the system, either mobile unit to mobile unit or mobile unit to fixed host, does not protect against any of the common methods of cryptographic attack. In particular the defined APCO system permits the same message to be sent inbound in the clear and outbound encrypt- ed. This allows one of the easiest cryptographic attacks.