Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1994-07-25
1998-12-15
Barron, Jr., Gilberto
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
463 29, 463 40, A63F 924
Patent
active
058504478
ABSTRACT:
A secured system of remote participation in interactive games with verification of the chronology of events relies on the counting, by a secured microprocessor (for example a microcircuit card), of consecutive periods of time of which the first one (Tr12) is initialized by a cryptographically secured message sent by the transmitter and the last one (Tr25) is ended by a connection of the games machine to the central computer of the transmitter for the forwarding thereto of the answer.
REFERENCES:
patent: 4592546 (1986-06-01), Fascenda et al.
patent: 5073931 (1991-12-01), Audebert et al.
Barron Jr. Gilberto
Gemplus Card International
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