公开(公告)号：US20240078314A1

公开(公告)日：2024-03-07

申请号：US17939551

申请日：2022-09-07

Applicant: Micron Technology, Inc.

Inventor： Sourin Sarkar ,  Vamshikrishna Komuravelli

IPC: G06F21/57 ,  G06F21/73

CPC classification number: G06F21/572 ,  G06F21/73 ,  G06F2221/034

Abstract: A system for providing usage model context aware power management in secure systems with embedded hardware security modules is disclosed. The system determines a context associated with a transaction with a memory device that is initiated by a host device. Based on the context, the system sets conditions within its internal data structures and state machines. The context may indicate that the transaction is a secure transaction requiring cryptographic services of the memory device. Flags are set in firmware of the memory device indicating a need for context aware power management and for cryptographic services. If a power management function to reduce power to the memory device is to be executed, the firmware rejects the transaction until the memory device reenters a functional mode. If the function is not to be executed, the firmware provides the host with a notification of an impending power state change for the memory device.

公开(公告)号：US20230394901A1

公开(公告)日：2023-12-07

申请号：US17859892

申请日：2022-07-07

Applicant: Micron Technology, Inc.

Inventor： Sourin Sarkar ,  Vamshikrishna Komuravelli ,  Spandana Patchigolla

IPC: G07C13/00 ,  H04L9/32 ,  G06K19/06

CPC classification number: G07C13/00 ,  H04L9/3236 ,  G06K19/06028 ,  H04L2209/463

Abstract: In some aspects, the techniques described herein relate to a method including: receiving, by an electronic voting machine (EVM), user data from a user device, the user data including a unique code; presenting, by the EVM, an interface, the interface capable of receiving a vote; generating, by the EVM, a command based on the user data and the vote; determining, by the EVM, that the command is valid; encrypting, by the EVM, the vote and the user data; and writing, by the EVM, the vote to a secure memory.

公开(公告)号：US12166870B2

公开(公告)日：2024-12-10

申请号：US17725178

申请日：2022-04-20

Applicant: Micron Technology, Inc.

Inventor： Sourin Sarkar ,  Vamshikrishna Komuravelli

IPC: H04L9/32 ,  H04L9/08

Abstract: In some implementations, a memory device may generate a physical unclonable function (PUF) value. The memory device may access a PUF protection key stored in a non-host-addressable memory region. The memory device may encrypt the PUF value, using the PUF protection key, to generate an encrypted PUF value. The memory device may store the encrypted PUF value in scattered memory locations in the non-host-addressable memory region.

公开(公告)号：US12014187B2

公开(公告)日：2024-06-18

申请号：US17661983

申请日：2022-05-04

Applicant: Micron Technology, Inc.

Inventor： Sourin Sarkar ,  Vamshikrishna Komuravelli ,  Kanika Mittal

IPC: G06F9/4401

CPC classification number: G06F9/4411 ,  G06F9/4418

Abstract: Implementations described herein relate to boot processes for memory devices. In some implementations, a controller of a storage system receives a command for enabling a fast bootup process for the storage system. The fast bootup process may exclude a measurement of information retrieved from a memory device of the storage system during the fast bootup process. The controller may enable the fast bootup process based on the command. The controller may disable a normal bootup process for the storage system based on the fast bootup process being enabled. The normal bootup process may include a measurement of information retrieved from the memory device during the normal bootup process.