A memory system includes a nonvolatile memory device; and a controller configured to control the nonvolatile memory device, wherein the controller is configured to: receive a system information request including a command and an argument from a host device; determine suitability of the system information request based on a fixed key included in the argument in response to the command; encrypt system information based the argument when the system information request is suitable; and transmit the encrypted system information to the host device.

In a method of operating a memory system, first security data and a first timestamp for preventing a replay attack are written by a host device to a first memory area which is an external memory area. A second timestamp is updated by the host device based on the first timestamp. The second timestamp corresponding to the first timestamp is stored in a second memory area distinguished from the first memory area. A first notification signal representing a result of updating the second timestamp is received by the host device. A writing operation for the first security data is completed when it is determined, by the host device, based on the first notification signal that the second timestamp is successfully updated.

A data storage device 100 comprising: a non-volatile storage medium 108 configured to store user data 109; a data port 106 configured to transmit data and power between a host computer system 130 and the data storage device 100; a data access state indicator 140; and a controller 110 configured to: selectively set a data access state of the data storage device 100 to either: an unlocked state to enable access to the user data 109; or a locked state to disable access to the user data 109; and generate an indicator control signal to cause the data access state indicator 140 to indicate the data access state, wherein the data access state indicator 140 is configured to indicate the data access state irrespective of whether the data storage device 100 is powered through the data port 106.

Techniques for reducing unsafe memory access, particularly when interacting with native libraries, are disclosed. The system may receive a memory address. The system may determine that the received memory address is not associated with an existing memory segment. The system selects a particular memory segment, of a plurality of memory segments. The memory segment may have a length of zero and a size corresponding to a size of a native heap. The system may return a reference to the particular memory segment.

An example authentication device disclosed herein is to access a message received via a wireless interface from an adapter, the message to indicate that a host device has connected to the adapter, the host device different from the authentication device. The disclosed example authentication device is also to determine whether to allow the host device to access a storage device. The disclosed example authentication device is further to transmit authentication data to the adapter via the wireless interface, the authentication data to specify whether the host device is allowed to access the storage device.

Creating a replica of a storage system, including: receiving, by a first storage system from a computing device, data to be stored on the first storage system; reducing, by the first storage system, the data using one or more data reduction techniques; sending, from the first storage system to the second storage system, the reduced data, wherein the reduced data is encrypted; and sending, from the second storage system to a third storage system, the reduced data, wherein the reduced data is encrypted.

Methods and systems for enabling secure memory transactions in a memory controller are disclosed. Responsive to determining that an incoming request is for a secure memory transaction, the incoming request is placed in a secure request container. The memory container then enters a state where re-ordering between requests for secure memory transactions placed in the secure request container and requests for non-secure memory transactions from other containers is prevented in a scheduling queue.

A method including determining, by a first user device, a sharing encryption key based at least in part on a folder access private key associated with a folder and an assigned public key associated with a second user device; encrypting the folder access private key associated with the folder utilizing the sharing encryption key; and transmitting the encrypted folder access private key to enable the second user device to access the folder. Various other aspects are contemplated.

A system enables entities to access a single platform in order to utilize electronic data storage for storing different types of information. One or more computers may operate an electronic data storage processing network that entities can access when updating information in electronic data storage. The electronic data storage processing network may operate a plurality of electronic data storage processing modules, which can include an aggregator module, a formatter module, an operator signer module, and a validator module. Based on the specific use case for which electronic data storage is utilized, recordable data that is to be added to the electronic data storage can be processed by the appropriate aggregating, formatting, signing, and validating functions provided by the electronic data storage processing modules.

According to one embodiment, when data is to be written to a first physical storage location that is designated by a first physical address, a memory system encrypts the data with the first physical address and a first encryption key, and writes the encrypted data to the first physical storage location. When the encrypted data is to be copied to a second physical storage location, the memory system decrypts the encrypted data with the first physical address and the first encryption key, and re-encrypts the decrypted data with a second encryption key and a copy destination physical address indicative of the second physical storage location.