Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-10-02
2007-10-02
Zand, Kambiz (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S170000, C380S247000
Reexamination Certificate
active
10900127
ABSTRACT:
A network including an optical sensing device and a registration server: wherein a secret key and a public unique identifier are installed in a non-volatile memory of the optical sensing device and in a database of the registration server, before the optical sensing device is connected to the network; wherein, the registration server is adapted to authenticate the optical sensing device when the optical sensing device is connected to the network by verifying the optical sensing device's encryption, using the secret key, of a challenge message; wherein, if the authentication succeeds, the optical sensing device is registered in the database of the registration server; and wherein the optical sensing device is adapted to capture a sequence of time-stamped positions of the optical sensing device relative to a surface including coded data.
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Lapstun Paul
Silverbrook Kia
Lipman Jacob
Silverbrook Research Pty Ltd
Zand Kambiz
LandOfFree
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