Method and apparatus for encrypting and processing data in flash translation layer

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.

主权项

1. A method for managing data associated with a flash memory in a flash translation layer, the method comprising the steps of:
receiving a request for a reading of data stored in the flash memory; searching a page of the flash memory in which the data is stored, in response to the request; determining whether the searched page supports an encryption storage function; generating a page key based on an encrypting function for the searched page, when the searched page supports the encryption storage function; decoding the data using the generated page key; and loading the decoded data.