Beijing Tenafe Electronic Technology Co., Ltd.

Nanjing Tenafe Electronic Technology Co., Ltd.

Xiaojun Ding

Zhikai Chen

Lyle E Adams

Priyanka Nilay Thakore

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

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

If a first group selection setting is set to TRUE, an NVM Express (NVMe) processor sends a first set of NVMe status information that includes a transfer data end event. If a second group selection setting is set to TRUE, the NVMe processor sends a second set of NVMe status information that includes an NVMe error event. A firmware functional module sends firmware status information. The aggregation module aggregates and timestamps the first and second sets of NVMe status information, if any, and the firmware status information to obtain a timestamped and aggregated message stream that is output by an interface. The timestamped and aggregated message stream enables a visualization system to analyze the NVMe processor and the firmware functional module. The NVMe processor, firmware functional module, aggregation module, and interface are in a storage controller, implemented on a system on chip (SOC), that manages a storage medium.

Collection of runtime information for debug and analysis, including by aggregating status information into a standardized message format and timestamping

A hardware functional module sends, to an aggregation module and in a standardized message format, first status information associated with the hardware functional module according to a first set of reporting rules via a first dedicated link. The firmware functional module sends, to the aggregation module and in the standardized message format, second status information associated with the firmware functional module according to a second set of reporting rules via a second dedicated link. The aggregation module aggregates the first status information in the standardized message format and the second status information in the standardized message format and inserts a timestamp to obtain a timestamped and aggregated message stream. The timestamped and aggregated message stream enables a visualization system to analyze the hardware functional module and the firmware functional module.

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 system on chip (SOC) system includes functional modules, including a first and second functional module. The first and second functional module are configured to send, to an aggregation module and in a standardized message format, first and second status information associated with the first and second functional module according to a first and second set of one or more reporting rules, respectively. The aggregation module aggregates the first status information in the standardized message format and the second status information in the standardized message format and insert a timestamp to obtain a timestamped and aggregated message stream. The timestamped and aggregated message stream is stored and enables a visualization system to analyze the first functional module and the second functional module.

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Shanghai, China

Xiaojun Ding