公开(公告)号：US20200267240A1

公开(公告)日：2020-08-20

申请号：US16865494

申请日：2020-05-04

Applicant: Adobe Inc.

Inventor： Sanjeev Kumar Biswas ,  Mayank Goyal ,  Sharad Srivastava

IPC: H04L29/06

Abstract: 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 If the server receives a token that is outdated with respect to that which is otherwise expected based on the progression of the recorded chain, this suggests that the received communication was transmitted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.

公开(公告)号：US10652365B2

公开(公告)日：2020-05-12

申请号：US14988954

申请日：2016-01-06

Applicant: Adobe Inc.

Inventor： Sanjeev Kumar Biswas ,  Mayank Goyal ,  Sharad Srivastava

IPC: H04L29/06 ,  G06F21/30 ,  G06F21/45 ,  G06F21/33 ,  G06F21/44

Abstract: 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 If the server receives a token that is outdated with respect to that which is otherwise expected based on the progression of the recorded chain, this suggests that the received communication was transmitted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.

公开(公告)号：US11418570B2

公开(公告)日：2022-08-16

申请号：US16865494

申请日：2020-05-04

Applicant: Adobe Inc.

Inventor： Sanjeev Kumar Biswas ,  Mayank Goyal ,  Sharad Srivastava

IPC: H04L67/01 ,  H04L9/40 ,  G06F21/41 ,  G06F21/57 ,  G06F21/30 ,  G06F21/45 ,  G06F21/33 ,  G06F21/44 ,  G06Q20/38 ,  H04L9/32 ,  G06Q20/20

Abstract: 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.