Method for writing and reading data

摘要

A method for writing and reading data into or out of an indexed dataset includes a data structure and an associated index structure, a processing unit that receives data to be written in plain text and writes the data to the data structure by means of write access and updates index data in the index structure. The processing unit detects data to be read out or the memory location thereof by means of access to the index data and reads out a data from the data structure by means of read access and makes the same available in plain text. The data in the data structure and the index data in the index structure are stored in an encrypted manner. Write/read access of the processing unit to the index structure and to the data structure take place via at least one en- and decryption unit.