(19)
(11)
EP 1 161 812 A1
(12)
(43)
Date of publication:
12.12.2001
Bulletin 2001/50
(21)
Application number:
00914874.3
(22)
Date of filing:
10.03.2000
(51)
International Patent Classification (IPC)
7
:
H04L
9/14
,
H04L
9/20
,
H04L
9/30
(86)
International application number:
PCT/US0006/110
(87)
International publication number:
WO 0054/455
(
14.09.2000
Gazette 2000/37)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI
(30)
Priority:
11.03.1999
US 124086 P
(71)
Applicant:
Tecsec, Incorporated
Vienna, VA 22182 (US)
(72)
Inventor:
SCHEIDT, Edward, M.
McLean, VA 22101 (US)
(74)
Representative:
Betten & Resch
PatentanwälteTheatinerstrasse 8
80333 München
80333 München (DE)
(54)
VOICE AND DATA ENCRYPTION METHOD USING A CRYPTOGRAPHIC KEY SPLIT COMBINER