公开(公告)号：US20240205021A1

公开(公告)日：2024-06-20

申请号：US18497000

申请日：2023-10-30

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Nir Eilam ,  Yuval Itkin ,  Haim Kupershmidt ,  Yigal Edery ,  Uriya Stern ,  Boaz Shahar ,  Mor Sfadia

IPC: H04L9/32 ,  H04L9/08

CPC classification number: H04L9/3247 ,  H04L9/0825 ,  H04L9/3263

Abstract: In one embodiment, a device includes a memory to store a first public key indicating security ownership of the device by a first owner, an interface to receive a signature of an intermediate public key signed by a first owner signing service with a first private key, and processing circuitry to load the intermediate public key in the memory, responsively to authenticating the signature, and remove the first public key from the memory, and wherein the interface is to receive a second public key and a signature of the second public key signed by a second owner signing service with an intermediate private key, the processing circuitry is to load a second public key in the memory indicating ownership has been transferred to the second owner responsively to authenticating the signature of the second public key with the intermediate public key, and remove the intermediate public key from the memory.

公开(公告)号：US20220382868A1

公开(公告)日：2022-12-01

申请号：US17336123

申请日：2021-06-01

Applicant: Mellanox Technologies Ltd.

Inventor： Yuval Itkin ,  Guy Harel ,  Mor Sfadia

IPC: G06F21/57 ,  G06F8/658 ,  G06F8/61 ,  G06F8/65

Abstract: Apparatuses, systems, and techniques that implement a unidirectional counter with one-time-programmable memory that prevents the counter from reversing direction. In at least one embodiment, a unidirectional counter is implemented with a base value represented as a binary number and an offset represented as a bit field where each bit represents an equal amount.