A weak safe regeneration code for anti-eavesdropping attacks in cloud storage

A weak safe regeneration code for anti-eavesdropping attacks in cloud storage

Liu Jiannang Bright Huang

Erasure codes and regeneration codes are effective mechanisms to ensure the reliability of cloud storage, but they do not provide the confidentiality of data stored in the case of a node being tapped. In this paper, two kinds of weak secure regeneration code schemes are designed, which combine all-or-nothing transform and accurate restoration of regeneration code to ensure that the attacker can not obtain any meaningful information about the original data symbol in the case of limited eavesdropping ability, and has smaller data repair bandwidth. This paper gives the general coding construction method, proves its security, and compares and analyses by experiment, the result shows that the codec time of this scheme is shorter than other safe regeneration codes, and has better secret data storage ability.

A weak safe regeneration code for anti-eavesdropping attacks in cloud storage