Method and system for providing secure subscriber content data
First Claim
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1. A method for providing content data from a service provider to a requesting and user, said method comprising the steps of:
- transmitting, through a first transmission path, from a remote control device corresponding to said end user to a service provider, a public key and a request for content data;
transmitting, through said first transmission path, a secret key encrypted by said public key from said service provider to said remote control device;
receiving said secret key encrypted by said public key from said service provider at said remote control device;
decrypting, at said remote control device, the secret key using a private key corresponding to said public key of said end user;
transmitting, through a second transmission path, from said remote control device to a set-top box, the decrypted secret key corresponding to said service provider, transmitting, through a third transmission path, from said service provider to said set-top box, the requested content data encrypted by said secret key; and
decrypting the encrypted content data, by said set-top box, using the secret key corresponding to said service provider.
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Abstract
A personalized smart card stores therein public and private cryptography keys stored which are used to securely request and receive subscriber content data from a service provider, utilizing a remote control device.
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Citations
60 Claims
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1. A method for providing content data from a service provider to a requesting and user, said method comprising the steps of:
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transmitting, through a first transmission path, from a remote control device corresponding to said end user to a service provider, a public key and a request for content data;
transmitting, through said first transmission path, a secret key encrypted by said public key from said service provider to said remote control device;
receiving said secret key encrypted by said public key from said service provider at said remote control device;
decrypting, at said remote control device, the secret key using a private key corresponding to said public key of said end user;
transmitting, through a second transmission path, from said remote control device to a set-top box, the decrypted secret key corresponding to said service provider, transmitting, through a third transmission path, from said service provider to said set-top box, the requested content data encrypted by said secret key; and
decrypting the encrypted content data, by said set-top box, using the secret key corresponding to said service provider. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
the first transmission path differs from the second transmission path with second transmission path terminating at the set top box.
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16. A method for providing content data from a service provider to a requesting end user, said method comprising the steps of:
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transmitting, through a first transmission path, from a remote control device to a service provider, a public key and a request for content data;
transmitting, through a third transmission path, from said service provider to a set-top box, a secret key corresponding to said service provider encrypted by said public key and the requested content data encrypted by said secret key;
transmitting, through a second transmission path, from said set-top box to said remote control device, the encrypted secret key corresponding to said service provider;
decrypting, by said remote control device, said secret key corresponding to said service provider using a private key corresponding to said public key of said end user;
transmitting, through said second transmission path, from said remote control device to said set-top box, the decrypted secret key corresponding to said service provider; and
decrypting, by said set-top box, the encrypted content data using the secret key corresponding to said service provider. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39)
the first transmission path differs from the second transmission path with second transmission path terminating at the set top box.
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39. The system according to claim 29, wherein said remote control device is activated by a smart card, and said smart card stores said public key and said private key corresponding to said end user.
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31. A subscriber data content service receiving system, comprising:
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a remote control device corresponding to an end user;
a set-top box; and
a service provider;
wherein;
said remote control device transmits to a service provider, through a first transmission path, a public key and a request for content data;
said service provider transmits to said remote control device, through said first transmission path, a secret key encrypted by said public, key;
said remote control device receives said secret key encrypted by said public key from said service provider;
said remote control device decrypts said secret key using a private key corresponding to said public key of said end user;
said remote control device transmits to said set-top box, through a second transmission path, the decrypted secret key corresponding to said service provider;
said service provider transmits to said set-top box, through a third transmission path, the requested content data encrypted by said secret key; and
said set-top box decrypts the encrypted content data using the secret key corresponding to said service provider. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45)
the first transmission path differs from the second transmission path with second transmission path terminating at the set top box.
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46. A subscriber data content service receiving system, comprising:
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a remote control device corresponding to an end user;
a set-top box; and
a service provider;
wherein;
said remote control device transmits to a service provider, through a first transmission path, a public key and a request for content data;
said service provider transmits to a set-top box, through a third transmission path, a secret key corresponding to said service provider encrypted by said public key and the requested content data encrypted by said secret key;
said set-top box transmits to said remote control device, through a second transmission path, the encrypted secret key;
said remote control device decrypts said secret key corresponding to said service provider using a private key corresponding to said public key of said end user;
said remote control device transmits to said set-top box, through said second transmission path, the decrypted secret key corresponding to said service provider; and
said set-top box decrypts the encrypted content data using the secret key corresponding to said service provider. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
the first transmission path differs from the second transmission path with second transmission path terminating at the set top box.
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Specification
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Current AssigneeNokia Technologies Oy (Nokia Corporation)
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Original AssigneeNokia Corporation
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InventorsOkkonen, Harri, Heinonen, Pekka J., Ikonen, Ari M.
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Primary Examiner(s)Sheikh, Ayaz
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Assistant Examiner(s)Arani, Taghi T.
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Application NumberUS09/559,061Time in Patent Office1,628 DaysField of Search380/241, 380/228, 725/30, 725/31, 713/182, 713/185, 348/14.01, 348/14.04, 348/14.05, 379/110.01US Class Current380/241CPC Class CodesH04N 21/25875 involving end-user authenti...H04N 21/4181 for conditional accessH04N 21/42204 User interfaces specially a...H04N 21/4623 Processing of entitlement m...H04N 21/4753 for user identification, e....H04N 7/1675 Providing digital key or au...
