Apparatus and method for a secure broadcast system
First Claim
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1. A method for secure processing in a device that securely stores a secret key, the method comprising:
- receiving a plurality of challenges from a network;
generating a plurality of ciphering keys based on the secret key and the plurality of challenges; and
generating an access key based on the plurality of ciphering keys.
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Abstract
Apparatus and method for provisioning an access key used for a controlled access broadcast service is disclosed. In one aspect, a method for secure processing in a device that securely stores a secret key comprises receiving a plurality of challenges from a network, generating a plurality of ciphering keys based on the secret key and the plurality of challenges, and generating an access key based on the plurality of ciphering keys.
157 Citations
38 Claims
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1. A method for secure processing in a device that securely stores a secret key, the method comprising:
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receiving a plurality of challenges from a network;
generating a plurality of ciphering keys based on the secret key and the plurality of challenges; and
generating an access key based on the plurality of ciphering keys. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Apparatus for use in a mobile phone comprising:
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an integrated circuit card (ICC) configured to securely store a secret key and to generate a plurality of ciphering key based on the secret key and a plurality of challenges received from a network; and
a processor coupled to the ICC and configured to generate an access key based on the plurality of ciphering keys. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. Apparatus for secure processing in a device having means for securely storing a secret key, the apparatus comprising:
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means for generating a plurality of ciphering keys based on a plurality of challenges received from a network and the secret key; and
means for generating an access key based on the plurality of ciphering keys. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An article of manufacture for use in a computer system embodying a system that securely stores a secret key and receives a plurality of challenges from a network, said article of manufacture comprising a machine readable medium having machine readable code means embodied in said medium comprising:
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machine readable code means embodied in said machine readable medium for generating a plurality of ciphering keys based on the plurality of challenges and the secret key; and
machine readable code means embodied in said machine readable medium for generating an access key based on the plurality of ciphering keys. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification