H - Electricity – 04 – K
Patent
H - Electricity
04
K
340/70
H04K 1/00 (2006.01) G07F 7/10 (2006.01) H04L 9/32 (2006.01)
Patent
CA 1191916
ABSTRACT: Method and system for the mutual encyphered identifica- tion between data communicating stations and stations for use with such method and system. A method for transmitting ciphered information between two stations while using session keys. According to the method a mutual identification of the stations (AK, A; A,B) is obtained while using an identification device (ID) comprised in each station. Number values (r1, r2), originating from each station, may be exchanged by said identification in a form which is so ciphered that the number values may be recovered by the counter- part only. The session key (tm) is formed on basis of said nunber values in a modification device (MODIFI). Ciphered data messages are exchanged between the station using the established session key and a message cipher- ing/deciphering device (MCRY, MDECRY) comprised in each station. According to the method the mutual identifica- tion and the establishment of the session key via an open channel may be obtained by transmitting one separate identification sequence in each direction. (Fig. 1).
400150
Aaro Tore I.
Blom Rolf J.
Fdk Viiveke A.
Forchheimer Robert
Ingemarsson Bror I.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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