Appeal No. 2003-1829
Application No. 08/994,878
5. A method for obtaining and using a private key at user
equipment via a network, said method comprising:
transmitting from the user equipment an ID of a user;
receiving a private key of the user encrypted with a user
identifying key associated with the user; and
decrypting the encrypted private key using a user
identifying key determined from interaction with the user at the
user equipment;
using the decrypted private key; and
destroying or avoiding making any non-volatile record of the
private key at the location of the user.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Asay et al. (Asay) 5,903,882 May 11, 1999
(filed Dec. 13, 1996)
Trostle 5,919,257 Jul. 06, 1999
(filed Aug. 08, 1997)
Bruce Schneier, Applied Cryptography 174 (2d ed., John Wiley
& Sons, Inc. 1996)(Schneier)
Claims 5 and 7 stand rejected under 35 U.S.C. § 103 as being
unpatentable over Trostle in view of Asay.
Claims 6 and 8 stand rejected under 35 U.S.C. § 103 as being
unpatentable over Trostle in view of Asay and Schneier.
Reference is made to the Examiner's Answer (Paper No. 28,
mailed April 7, 2003) for the examiner's complete reasoning in
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