摘要:
A method for preventing a user from interpreting optional stored data information even when the user extracts the optional stored data, and an apparatus thereof. The apparatus for encrypting and processing data in a flash translation layer includes a flash memory and a controller. The flash translation layer searches at least one page of the flash memory storing the data when a write of optional data is requested from the controller, generates, corresponding to respective searched pages, a page key according to a predetermined encrypting function when the searched page supports an encryption, and encrypts and stores the data by the page key in the respective searched pages.
摘要:
A method and apparatus for preventing a user from interpreting optional stored data information even when the user extracts the optional stored data, by managing data associated with a flash memory in a flash translation layer, the method comprising searching at least one page of the flash memory when writing data to the flash memory, determining whether authority information corresponding to respective searched pages includes an encryption storage function, generating, corresponding to respective searched pages, a page key according to an encrypting function when the authority information includes the encryption storage function encrypting the data using the generated page key and storing the encrypted data in the respective searched pages, and storing the data in the respective searched pages without encryption when the authority information does not include the encryption storage function.
摘要:
A memory and a method for managing data. The memory for compressing and managing data includes a memory unit, wherein the memory unit has a compressed page cache region which includes a plurality of compressed page caches for temporarily storing, compressing and decompressing data; and a compressed page block region which includes a plurality of compressed page blocks for storing compressed data generated through the compression. Since data is stored in the memory after being compressed, it is possible to store much more data. Furthermore, as a great amount of data can be stored at one time, it is possible to minimize a lowering of the data processing speed caused by movement of data between memories.