Identification of data leakage and detecting guilty agent

The admin or data distributor distributes the important data to trusted agent .Sometimes the some part of data is leaked & found in an unauthorized place then it becomes important for the distributor to find out the guilty agent. Traditionally, the problem of data leakage is avoided by the watermarking technique. But in watermarking there are more chances of original data modification. To remove these problems, we introduce new strategies i.e. data allocation strategies. In perturbation technique data is modified and make it ‘less sensitive’ before sending to trusted agent