公开(公告)号：US20200089844A1

公开(公告)日：2020-03-19

申请号：US16553926

申请日：2019-08-28

Applicant: OpenTV, Inc.

Inventor： Debra Hensgen ,  Charles Stevens

IPC: G06F21/10 ,  H04N21/262 ,  H04N21/266 ,  H04N21/8355 ,  G06F21/60 ,  G06F21/62 ,  H04L9/08 ,  H04L29/06

Abstract: Systems and methods for managing provisioning of keys prior to a key rotation are provided. A license server generates a license that is associated with a renewal time. The renewal time is a time that is prior to a key rotation time, and triggers a receiver device to send a renewal request prior to the key rotation time. The renewal time may be a randomized time prior to the key rotation time that differs for different receiver devices. The license is transmitted to the receiver device. The license server then receives a renewal request from the receiver device that is triggered at the renewal time. The license server generates a next license that comprises a next key, whereby the next key is a decryption key for decrypting the encrypted signal after the key rotation time. The next license is transmitted to the receiver device prior to the key rotation time.

公开(公告)号：US20180150620A1

公开(公告)日：2018-05-31

申请号：US15361904

申请日：2016-11-28

Applicant: OpenTV, Inc.

Inventor： Debra Hensgen ,  Charles Stevens

IPC: G06F21/10 ,  G06F21/60 ,  G06F21/62 ,  H04L9/08 ,  H04L29/06

CPC classification number: G06F21/105 ,  G06F21/10 ,  G06F21/602 ,  G06F21/6209 ,  G06F2221/0753 ,  G06F2221/0755 ,  G06F2221/2141 ,  H04L9/0861 ,  H04L9/0891 ,  H04L63/068 ,  H04N21/26216 ,  H04N21/26613 ,  H04N21/8355

Abstract: Systems and methods for managing provisioning of keys prior to a key rotation are provided. A license server generates a license that is associated with a renewal time. The renewal time is a time that is prior to a key rotation time, and triggers a receiver device to send a renewal request prior to the key rotation time. The renewal time may be a randomized time prior to the key rotation time that differs for different receiver devices. The license is transmitted to the receiver device. The license server then receives a renewal request from the receiver device that is triggered at the renewal time. The license server generates a next license that comprises a next key, whereby the next key is a decryption key for decrypting the encrypted signal after the key rotation time. The next license is transmitted to the receiver device prior to the key rotation time.