Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate
2005-06-07
2005-06-07
Peeso, Thomas R. (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Central trusted authority provides computer authentication
C713S168000, C713S171000, C713S175000, C713S152000, C713S152000, C380S232000, C380S239000
Reexamination Certificate
active
06904522
ABSTRACT:
The present invention relates to a method of providing secure communication of information between at least a first and second digital audiovisual device (30, 52) and characterized in that the first device (30) communicates to the second device (52) a certificate Ct(KpubT) comprising a transport public key KpubT encrypted by a management private key KpriMan, the second device (52) decrypting the certificate using an equivalent management public key KpubMan and thereafter using the transport public key KpubT to encrypt information sent to the first device, the first device using an equivalent private key KpriT to decrypt the information. The present invention is particularly applicable to a method of providing secure communication between a first and second decoder.
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Benardeau Christian
Dauvois Jean-Luc
Canal & Technologies
Osha & May L.L.P.
Peeso Thomas R.
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