Montage Technology Co., Ltd.

Montage Electronics (shanghai) Co., Ltd.

Dajiang Zhong

Zhaohui Du

Xiaoyan Li

Yang Chao

Men Long

A data security method and data security system configured to applied to a memory controller are provided. The data security method comprises: receiving a data writing request, wherein the data writing request comprises data to be written to a storage module and a storage address of the data; acquiring verification information of the data; and writing the data into the storage address, and writing the verification information into a redundant ECC bit corresponding to the data. The data security method and data security system according to the present disclosure can achieve the secure storage and reading of the data without extra space overhead, while maintaining high bandwidth and throughput.

Data security method and data security system

A data compression method includes: storing data to be written into a first address and a second address into a data buffer in response to a data write request to the first address and the second address of a memory module from a host; according to a relationship between the first address and the second address, selecting a compression scheme from pre-configured compression schemes, and attempting to compress the data to be written into the first address and the second address into compressed data that can be stored into either the first address or the second address by using a pre-defined compression method, if the attempt to compress successes, storing the compressed data into the first address or the second address of the memory module, and identifying the compressed data by using redundant ECC bits to form first identification information.

Data compression and decompression methods and systems

A data encryption and decryption system a host system, sequencer, hardware processor, direct memory access modules, and cryptography engines having input and output buffers, and symmetric encryption/decryption and digest algorithm modules. The host system determines encryption/decryption calculation and/or digest calculation method, and generates corresponding encryption/decryption and/or digest calculation commands. The sequencer analyzes the encryption/decryption and/or digest calculation commands to generate control flow commands, and controls one or more of the direct memory access modules via the control flow commands to input data to be encrypted/decrypted into the input buffer of one or more cryptography engines. The hardware processor controls the symmetric encryption/decryption algorithm module to perform encryption/decryption calculations according to the encryption/decryption calculation commands, and/or, controls the digest algorithm module to perform digest calculations on data to be encrypted/decrypted according to the digest calculation commands, and sends calculation results to the host system by the direct memory access module.

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Shanghai, China

Dajiang Zhong