Beijing Tenafe Electronic Technology Co., Ltd.

Nanjing Tenafe Electronic Technology Co., Ltd.

Zhikai Chen

Xiaojun Ding

Priyanka Nilay Thakore

Lyle E Adams

Chen Xiu

Meng Kun Lee

It is detected whether a next-to-last raw data block in a raw data segment has been written into an input buffer. A sequence number difference is calculated between sequence numbers of the next-to-last raw data block and a current raw data block. It is determined whether the sequence number difference exceeds a number of operation rounds associated with encryption. In response to: (1) detecting that the next-to-last raw data block has been written into the input buffer and (2) determining that the sequence number difference does not exceed the number of operation rounds, a read of the next-to-last raw data block is triggered. The next-to-last raw data block is encrypted, out of a sequence number order and using Advanced Encryption Standard (AES) processing and a CipherText Stealing (XTS) working mode, to produce a next-to-last encrypted data block. A last raw data block is encrypted using the next-to-last encrypted data block.

Method, system and apparatus for data encryption

A storage controller system includes a host command module that manages communication with a host and a backend command module that manages communication with a storage system. A storage interface hardware functional module, in response to an unsuccessful or successful operation, generates a first or second type of a status message with an automated retry flag set to TRUE or FALSE. A virtual queue module receives the status message and selects a virtual queue. If (1) the flag being set to TRUE and (2) independent of the queue ID, an original command virtual queue is selected. If (1) the flag being set to FALSE and (2) the queue ID being set to the value associated with the backend command module, a virtual queue associated with the backend command module is selected. A stored message in the selected virtual queue is provided to the selected message recipient.

Virtual queue for messages

1. Each of a plurality of data processing units independently performs an end-to-end encryption operation associated with AES on a data block. The number of data processing units is selected based at least in part on a desired processing throughput rate and power consumption, where the number of data processing units and the selected key length produce a total processing throughput rate that is a multiple of 1/10, 1/12 or 1/14 of a maximum throughput rate. A target data processing unit is selected, including by sequentially communicating with the data processing units in round-robin order to obtain an idle state information until an idle data processing unit is encountered. The target data processing unit generates a ciphertext data block corresponding to the target data block, including by performing all SubByte, ShiftRow, MixColumn, and AddRoundKey transformations.

Device and method for data processing

A programmable circuit is configured, including by selecting a plurality of target events to monitor in real time. A logical combination of the plurality of target events that correspond to a triggered preset state is specified. A corresponding action execution circuit module is associated with the triggered preset state. The target event monitoring module monitors the plurality of target events in real time and the preset state selecting module selects the corresponding action execution circuit module to run in the event the logical combination is satisfied. The corresponding action execution circuit module executes an action associated with enabling a reserved trigger function of a target solid state drive (SSD) memory.

Method for controlling a target memory by programmably selecting an action execution circuit module corresponding to a triggered preset state

A message that includes a queue identifier (ID) is received from a first hardware functional module. A virtual queue is selected from a plurality of virtual queues in a shared queue structure based at least in part on the queue ID and configurable message handling settings(s). The message is stored in the selected virtual queue and a message recipient is selected from a plurality of potential message recipients based at least in part on the configurable message handling setting(s), where the plurality of potential message recipients includes the second hardware functional module and the processor module. The message is provided to the selected message recipient.

A scheduler is used to control a target data processing unit among a plurality of data processing units in order to receive a target data block that is to be encrypted. Each of the plurality of data processing units is able to independently complete an encryption operation associated with Advanced Encryption Standard (AES) for a data block. A ciphertext data block corresponding to the target data block is generated, including by performing the encryption operation associated with AES on the target data block using the target data processing unit.

It is detected whether a next-to-last raw data block in a raw data segment has been written into an input buffer. If so, the next-to-last raw data block is read from the input buffer for encryption immediately after a current raw data block is read from the input buffer for encryption. Reading continues for a subsequent raw data block after the current raw data block is read from the input buffer for encryption, after the next-to-last raw data block is read from the input buffer for encryption. Encryption is performed, using Advanced Encryption Standard (AES) processing and a CipherText Stealing (XTS) working mode, on a last raw data block in the raw data segment by providing an intermediate encrypted data block, where the intermediate encrypted data block is obtained by encrypting the next-to-last raw data block, and the last raw data block is read from the input buffer.

A programmable circuit that is configured to control a target memory is used to detect a number and types of a plurality of target events in real time. In the event a trigger condition associated with a triggered preset state in a plurality of preset states is satisfied by the detected number and types of the plurality of target events, an action execution circuit module corresponding to the triggered preset state is selected to run, where the trigger condition is based on at least one of the plurality of target events. Using the action execution circuit module corresponding to the triggered preset state, one or more actions corresponding to the triggered preset state are executed, where at least one of the one or more actions corresponding to the triggered preset state is associated with controlling the target memory.

A signal receiving circuit receives a reset configuration signal from an exceptional timing sequence device in a functional module and outputs a trigger signal. A first signal generation circuit generates an idle signal based at least in part on the trigger signal. The idle signal is used to configure a shutdown signal which in turn is used to shut down a first clock signal of the exceptional timing sequence device and a second clock signal in a same clock domain as the first clock signal. A second signal generation circuit generates a reset enable signal based at least in part on the trigger signal. An operational circuit performs an operation based at least in part on the reset enable signal and generates a module-based reset signal based at least in part on an operation result. The module-based reset signal is used to reset the exceptional timing sequence device in the functional module.

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Shanghai, China

Zhikai Chen