Privacy protection in communication systems
AssigneeQUALCOMM Incorporated
InventorsAdrian Escott, James Semple
Life of this patent
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Abstract
Methods and apparatus for protecting user privacy in a shared key system. According to one aspect, a user generates a derived identity based on a key and a session variable, and sends the derived identity to an application. In one embodiment, a key server may be used to receive the derived identity from the application, and return a sub-key to the application to use for encrypting communications with the user.
Claims44
A method for protecting user privacy comprising:
- generating a derived identity associated with a user based on a key and at least one parameter comprising a session variable;
- and
- sending said derived identity to an application.
A method for protecting user privacy during communications in a system having a key server, said method comprising:
- receiving from a user a derived identity generated from a key and at least one parameter comprising a session variable;
- transmitting said derived identity to said key server;
- and
- receiving from said key server information associated with said user.
A method for protecting user privacy comprising:
- receiving, from a user, a derived key identity generated from a key and at least one parameter comprising a session variable;
- and
- identifying said key from said derived key identity.
A method for protecting user privacy during communications in a system having a key server, said method comprising:
- receiving from a requesting application a derived identity generated from a key and at least one parameter comprising a session variable;
- and
- identifying said user from said derived identity.
An apparatus for protecting user privacy comprising:
- a derived identity generator for generating a derived identity associated with a user based on a key and at least one parameter comprising a session variable;
- a transmitter for sending said derived identity to an application.
An apparatus for protecting user privacy during communications in a system having a key server, said apparatus comprising:
- a receiver for receiving, from a user, a derived identity generated from a key and at least one parameter comprising a session variable;
- and
- a transmitter for transmitting said derived user identity to said key server.
An apparatus for protecting user privacy comprising:
- a receiver for receiving, from a user, a derived key identity generated from a key and at least one parameter comprising a session variable;
- a processor for identifying said key from said derived key identity.
An apparatus for protecting user privacy during communications in a system having a key server, said apparatus comprising:
- a receiver for receiving, from a requesting application, a derived identity associated with a user generated from a key and at least one parameter comprising a session variable;
- and
- a processor for identifying said user from said derived identity.
An apparatus for protecting user privacy during communications with an application, said apparatus comprising:
- means for generating a derived identity;
- means for sending said derived identity to an application.
An apparatus for protecting user privacy during communications in a system having a key server, said apparatus comprising:
- a receiver for receiving from a requesting application a derived identity generated from a key and at least one parameter comprising a session variable;
- means for identifying said user from said derived identity;
- and
- a transmitter for transmitting information associated with said user to said requesting application.
Dependencies are inferred from the claim text.