Adobe, Inc.

Sharad Srivastava

Sanjeev Kumar Biswas

Mayank Goyal

Vikas Sagar

A client device is tracked over a period of time using 'refresh tokens' that are exchanged in conjunction with routine client-server communications. Each communication cycle between client and server includes a refresh token that is recorded at the server. The recorded refresh tokens are mapped to both server- and client-generated device identifiers. As communications between client and server occur, a chain of tokens, one for each communication cycle, is progressively recorded at the server. If the server receives a token that is outdated with respect to that which is otherwise expected based on the progression of the recorded chain, this suggests that the received communication was transmitted from a device that is a clone of another client device. A more robust device identification framework is therefore achieved by using a combination of device identifiers and tokens exchanged between client and server.

Robust computing device identification framework

A method and apparatus for exploiting a master-detail relationship between a first structured data and at least one second structured data to enhance searching operations of a database containing the first data structure and the at least one second data structure, comprising accessing a first structured data and at least one second structured data of the database; and in response to orthogonal data filter characteristics, augmenting the first structured data with information related to the at least one second structured data to enhance searching of the database.

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Noida, India

Sharad Srivastava