Sony Semiconductor Solutions Corporation

Sony Semiconductor Israel Ltd.

Yehuda Ben Simon

Avishay Sharaga

Omer Botvinik

Boaz Shahar

In one embodiment, an apparatus includes a storage element, and a processing element configured to verify an asymmetric digital signature in order to authenticate a data item signed with the asymmetric digital signature, upon successful verification of the asymmetric digital signature, generate a symmetric MAC of the data item and store the symmetric digital in the storage element, and retrieve and verify the symmetric MAC in order to authenticate the data item.

Efficient data item authentication

An Integrated Circuit (IC) includes an on-chip non-volatile memory (NVM) and an on-chip processor. The on-chip NVM is configured to store a representation of a device-specific part of a security certificate assigned to the IC. The on-chip processor is configured to obtain a common part of the security certificate, to reconstruct the security certificate from the obtained common part and from the representation of the device-specific part stored in the on-chip NVM, and to perform a security operation using the reconstructed security certificate.

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Ramat Hasharon, Israel

Yehuda Ben Simon