... of the applications’ internal information flows. In response to it, Liu et al developed a privacy model, introduced by Chen et al , to prevent this threat. The approach aims to protect the size of the packets exchanged during the
communication between the client and the server and makes use of the privacy-preserving traffic padding (PPTP). Our paper proposes a novel economical mechanism to achieve this PPTP on
the basis of the well-known privacy preserving method called ldiversity.