Abstract: This application is directed to managing custom memory functions in a memory device coupled to a host device in an electronic system. The memory device obtains an information item (e.g., program, data, metadata) used to implement a custom memory function. The memory device receives a host signature and a public key from the host device and authenticates the host signature using the public key. In accordance with an authentication of at least the host signature, the memory device executes the custom memory function based on the information item. In some embodiments, the host device selects a set of memory devices based on a first-come-first-serve order, and the custom memory function is executed at each of the set of memory devices in accordance with an authentication of at least a respective host signature issued by the host device.

Abstract: This application is directed to prime number generation in an electronic device. The electronic device has a first executable and a second executable, and each executable has a unique identifier. The electronic device generates a wrapping key for the first executable and encrypts a prime number with the wrapping key of the first executable to generate an encrypted prime number. The encrypted prime number is stored locally in memory of the electronic device, and is only decryptable by the first executable but not by the second executable. In some embodiments, the first executable extracts the encrypted prime number from the memory of the electronic device, obtains the wrapping key of the first executable, and decrypts the encrypted prime number based on the wrapping key. In an example, the second executable is followed by the first executable, and generates the wrapping key based on a unique identifier of the second executable.

Abstract: A solid state drive (SSD) includes a nonvolatile memory array and a cache memory. The nonvolatile memory array has an encrypted integrated memory buffer (IMB) space. The cache memory has a decrypted copy of the IMB and an encrypted backup copy of the IMB. In power loss recovery (PLR) after a power loss imminent (PLI) event, the SSD can determine whether to recover the unencrypted copy of the IMB or the backup encrypted copy. The backup encrypted copy can reduce the risk of loss of data in the IMB in the event that multiple PLI events occur and a corrupted copy of the IMB is used to overwrite the IMB in the nonvolatile memory during a previous PLR.

Abstract: A solid state drive (SSD) includes a nonvolatile memory array and a cache memory. The nonvolatile memory array has an encrypted integrated memory buffer (IMB) space. The cache memory has a decrypted copy of the IMB and an encrypted backup copy of the IMB. In power loss recovery (PLR) after a power loss imminent (PLI) event, the SSD can determine whether to recover the unencrypted copy of the IMB or the backup encrypted copy. The backup encrypted copy can reduce the risk of loss of data in the IMB in the event that multiple PLI events occur and a corrupted copy of the IMB is used to overwrite the IMB in the nonvolatile memory during a previous PLR.

Abstract: Technologies for storage discovery and reallocation include a compute device. The compute device is to receive, from a data storage sled, storage device data from a storage device located on the data storage sled. The storage device data includes storage device self-test data that defines a result of a self-test performed by the storage device. The compute device is also to determine, in response to the storage device self-test data, whether the storage device fails to satisfy a performance threshold. Further, the compute device is to generate, in response to a determination that the storage device fails to satisfy the performance threshold, an adjustment message for the storage device. The adjustment message instructs the storage device to adjust a performance parameter of the storage device. The compute device is also to send the adjustment message to the storage device.

Abstract: Examples include techniques for determining a storage policy for storing data in a computing system having one or more storage nodes, each storage node including one or more storage devices. One technique includes getting rating information from a storage device of a storage node; assigning the storage device to a storage pool based at least in part on the rating information; and automatically determining a storage policy for the computing system based at least in part on the assigned storage pool and the rating information.

Abstract: A system for verifying the secure erase of a storage device is provided. A storage device controller for the storage device logs the execution of a secure erase command. A storage device controller for the storage device receives an erase verify command from a host. The storage device controller retrieves one or more secure erase log entries from access-limited memory locations in non-volatile memory of the storage device. The storage device controller copies the one or more secure erase log entries to storage device buffer circuitry. The storage device controller secures the one or more secure erase log entries with one or more cryptographic keys to generate an encrypted and/or signed erase verification message. The storage device controller transmits the encrypted and/or signed erase verification message to the host, in response to receipt of the erase verify command.

Abstract: An ordered classification procedure includes receiving a packet including a plurality of packet fields having corresponding field values. At least some of the packet fields are parsed to extract at least some of the field values of the packet. The extracted field values are examined using the ordered classification procedure to classify the packet into a flow. An order of the field examinations scheduled within the ordered classification procedure to examine the field values is based at least in part on the field values themselves.