Security key for set-top-box updating method

Details Security key for set-top-box updating method Security key for set-top-box updating method

H - Electricity

04

L

H04L 9/30 (2006.01) H04N 5/00 (2006.01) H04N 7/16 (2006.01) H04N 7/167 (2006.01)

Patent

CA 2433818

For this reason, the present invention proposes to allow the development of a first security based on a first key towards a second security based on a second key, this operation being carried out in an environment unprotected by said open transmission, guaranteeing the same security level as if this operation was carried out locally in the place belonging to the system manager. This aim is achieved by a security updating method applied to the connection between a decoder and its security unit comprising a first matching key, said decoder being linked to a managing centre, this method having the following steps: .cndot. transmission in the decoders, of a shared public key and of an updating programme, .cndot. preparation at the managing centre and for each decoder, of a coded message, this message containing a new asymmetric public key coded by the first key of said decoder and by the secret shared key, .cndot. carrying out of the updating programme and extraction of the new asymmetric public message key thanks to the global public key and its first key, .cndot. storage of this new public key in the decoder.

Affiliated with

Also associated with

Rating

Security key for set-top-box updating method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Security key for set-top-box updating method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security key for set-top-box updating method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1453805