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US 8,146,154 B2Granted
Method and system for using shared secrets to protect access to testing keys for set-top box
AssigneeBroadcom Corporation
InventorXuemin Sherman Chen
Life of this patent
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Abstract
Certain aspects of a method and system for using shared secrets to protect the access of testing keys for a set-top box may comprise receiving within a security processor within a set-top box a plurality of secret keys from a plurality of users. A password may be generated utilizing secret sharing based on the received plurality of secret keys. The generated password may be compared with a generated response. The plurality of users may be authenticated access to the set-top box based on the comparison.
Claims16
A method for authentication, the method comprising:
- in a set-top box:
- generating a password by utilizing secret sharing based on a received plurality of secret keys;
- generating a response by scrambling a device identification number (ID) of said set-top box with its corresponding key and a corresponding secret seed, wherein said corresponding secret seed is generated based on mapping said device ID;
- and
- authenticating access to said set-top box based on comparing said generated password with said generated response.
2 more elements
A system for authentication, the system comprising:
- one or more processors and/or circuits for use in a set-top box, said one or more processors and/or circuits being operable to:
- generate a password by utilizing secret sharing based on a received plurality of secret keys;
- generate a response by scrambling a device identification number (ID) of said set-top box with its corresponding key and a corresponding secret seed, wherein said corresponding secret seed is generated based on mapping said device ID;
- and
- authenticate access to said set-top box based on comparing said generated password with said generated response.
2 more elements
Dependencies are inferred from the claim text.