公开(公告)号：US12261936B2

公开(公告)日：2025-03-25

申请号：US17213465

申请日：2021-03-26

Applicant: Intel Corporation

Inventor： Vinit Mathew Abraham ,  Raghunandan Makaram ,  Kirk S. Yap ,  Siva Prasad Gadey ,  Tanmoy Kar

IPC: G06F21/62 ,  G06F16/23 ,  H04L9/06 ,  H04L9/08

Abstract: Techniques for real-time updating of encryption keys are disclosed. In the illustrative embodiment, an encrypted link is established between a local and remote processor over a point-to-point interconnect. The encrypted link is operated for some time until the encryption key should be updated. The local processor sends a key update message to the remote processor notifying the remote processor of the change. The remote processor prepares for the change and sends a key update confirmation message to the local processor. The local processor then sends a key switch message to the remote processor. The local processor pauses transmission of encrypted message while the remote processor completes use of the encrypted message. After a pause, the local processor continues sending encrypted messages with the updated encryption key.

公开(公告)号：US20210218548A1

公开(公告)日：2021-07-15

申请号：US17213465

申请日：2021-03-26

Applicant: Intel Corporation

Inventor： Vinit Mathew Abraham ,  Raghunandan Makaram ,  Kirk S. Yap ,  Siva Prasad Gadey ,  Tanmoy Kar

IPC: H04L9/06 ,  H04L9/08

Abstract: Techniques for real-time updating of encryption keys are disclosed. In the illustrative embodiment, an encrypted link is established between a local and remote processor over a point-to-point interconnect. The encrypted link is operated for some time until the encryption key should be updated. The local processor sends a key update message to the remote processor notifying the remote processor of the change. The remote processor prepares for the change and sends a key update confirmation message to the local processor. The local processor then sends a key switch message to the remote processor. The local processor pauses transmission of encrypted message while the remote processor completes use of the encrypted message. After a pause, the local processor continues sending encrypted messages with the updated encryption key.