IPTV transport architecture with double layer encryption and bulk decryption
First Claim
1. An IPTV-based (Internet protocol television-based) system, comprising:
- a receiver of content;
a transmitter for sending the content in double-layer-encrypted form to at least one of high-tier and low-tier service provider networks;
an inner layer encryption engine operative to perform inner-layer encryption of received content; and
an outer layer encryption engine operative to perform outer layer encryption of inner-layer-encrypted content in order to produce double-layer-encrypted content so that decryption thereof would yield the inner-layer-encrypted content for acquisition by one of the low-tier service provider networks, wherein bulk decryption of the yielded inner-layer-encrypted content would expose the content for acquisition by one of the high-tier service provider networks.
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Abstract
IPTV-based systems offer acquisition and distribution of content from numerous channels with protected end-to-end conditional access. In adopting IPTV-based systems for seamless transport of the content to their subscribers'"'"' set-top boxes, service providers would need a transport architecture that accommodates their existing infrastructure. In the spectrum of service providers some have no physical infrastructure at all and some have the entire suite of infrastructure and services. Therefore, the present invention provides a new transport architecture that can accommodate the spectrum of service providers, including tier-1, tier-2 and tier-3 service providers. For this purpose, the transport architecture includes double-layer encryption and bulk decryption.
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Citations
25 Claims
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1. An IPTV-based (Internet protocol television-based) system, comprising:
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a receiver of content; a transmitter for sending the content in double-layer-encrypted form to at least one of high-tier and low-tier service provider networks; an inner layer encryption engine operative to perform inner-layer encryption of received content; and an outer layer encryption engine operative to perform outer layer encryption of inner-layer-encrypted content in order to produce double-layer-encrypted content so that decryption thereof would yield the inner-layer-encrypted content for acquisition by one of the low-tier service provider networks, wherein bulk decryption of the yielded inner-layer-encrypted content would expose the content for acquisition by one of the high-tier service provider networks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13)
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11. An IPTV-based (Internet protocol television-based) system, comprising:
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a receiver of double-layer encrypted content which is content that has undergone inner-layer encryption and outer-layer encryption; at least one of high-tier and low-tier service provider networks; an outer layer decryption engine operative to perform outer layer decryption of the received double-layer-encrypted content to yield inner-layer-encrypted content for acquisition by one of the low-tier service provider networks; and an inner layer decryption engine operative to perform bulk inner-layer decryption of the yielded inner-layer-encrypted content in order to expose the content for acquisition by one of the high-tier service provider networks. - View Dependent Claims (12, 14, 15, 16, 17, 18, 19, 20)
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21. A method for distributing content in an IPTV-based system, comprising:
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receiving content; performing inner-layer encryption of the received content; producing a double-layer-encrypted content by performing outer-layer encryption of the inner-layer-encrypted content; and sending the double-layer-encrypted content for acquisition by one or more of high tier and low tier service provider networks. - View Dependent Claims (22, 24, 25)
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23. A method as in claim 23, further comprising decrypting the yielded inner-layer-encrypted content by performing inner layer decryption to expose the content, the exposed content being securely handed off to a high tier service provider'"'"'s controlled access system for re-encryption before being passed on to the high tier service provider network.
Specification