| 摘要 |
The invention relates to a method for writing and reading data on a storage medium using an FAT file system. In the course of the method, data is stored in logical blocks on the storage medium in a file system information region or in a data region of the storage medium when said data is being written, the logical blocks being combined into logical clusters in said data region. During a writing process of a logical block, it is ascertained in a first step whether said logical block is to be stored in the file system information region. If this is the case, the logical block is stored in an unencrypted manner. If the logical block is to be stored in the data region, said logical block is stored in an encrypted or unencrypted manner. According to the invention, in order to decide whether the logical block is stored in the data region in an encrypted or unencrypted manner, a check is carried out to determine whether the logical block is part of a repository cluster, wherein the logical block is then not encrypted, otherwise the logical block is encrypted. |
