Mellanox Technologies, Ltd.

Mor Hoyda Sfadia

Yuval Itkin

Ariel Shahar

Yaniv Strassberg

Ahmad Atamli

Itsik Levi

Haim Kupershmidt

Boaz Shahar

Nir Eilam

Uriya Stern

Yigal Edery

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.

Device control transfer

A computer system includes a volatile memory and at least one processor. The volatile memory includes a protected storage segment (PSS) configured to store firmware-authentication program code for authenticating firmware of the computer system. The at least one processor is configured to receive a trigger to switch to a given version of the firmware, to obtain, in response to the trigger, a privilege to access the PSS, to authenticate the given version of the firmware by executing the firmware-authentication program code from the PSS, to switch to the given version of the firmware upon successfully authenticating the given version, and to take an alternative action upon failing to authenticate the given version.

Secure in-service firmware update

Growing community of inventors

Tel Aviv, Israel

Mor Hoyda Sfadia