2 results about "Disk encryption" patented technology

The application relates to the technical field of electric digital data processing security, and discloses a solid state disk data encryption method and a solid state disk. The method realizes transparent encryption of written data and transparent decryption of read-out data by serially arranging a national secret algorithm hardware encryption and decryption coprocessing module on a data bus between a main control chip and a flash memory particle array; the module is based on an SM4 algorithm and an XTS advanced encryption standard mode, combines a logical address as an adjustment value to perform encryption and decryption, and injects a root key through an out-of-band interface to derive a data key. The system comprises a main control chip, a flash memory array and the coprocessing module, the latter integrates a hardware encryption and decryption engine, a key management unit and data flow control logic. The application realizes high-performance, high-compatibility, high-security national secret hardware-level full-disk encryption without changing a general main control chip.

The application relates to a method for realizing centralized transaction communication and data storage security encryption based on a domestic chip merchant secret algorithm, which comprises a communication link security reinforcement step and a data storage encryption step, and the communication link security reinforcement step specifically comprises the following processing procedures: communication link encryption based on a safe endogenous SDK; and link security reinforcement based on a safe endogenous merchant secret gateway; the data storage encryption step specifically comprises the following processing procedures: application layer safe endogenous encryption; database transparent encryption; and data storage disk encryption. The method, device, processor and computer readable storage medium thereof for realizing centralized transaction communication and data storage security encryption based on the domestic chip merchant secret algorithm integrate the safe endogenous merchant secret algorithm in a CPU internal chip, and external application does not need to excessively care about the adaptation of the underlying hardware, so that the problems of high compatibility cost and high procurement cost of newly-added encryption cards in the current merchant secret application are solved.