A DNA-based supercomputing for privilege query in hybrid role hierarchy

Access control is a crucial security technology, it can control the legal users to sensitive resources effectively and ensure users to access relative resource. In order to compute the minimal and unique roles set which satisfy the resource access requirement, this paper proposes a DNA-based computing method to search the appropriate roles in the hybrid role hierarchy according to the user´s privilege, and also put forward a new DNA algorithm for the minimal unique set (MUS), which introduce the power parallel of DNA computing to the original MUS algorithm.