A chaos-based joint compression and encryption scheme for streaming data

摘要

Some approaches for improving the performance of chaos-based joint compression and encryption schemes are proposed. Instead of building the whole lookup tables before encryption, we dynamically develop the bi-gram probability based lookup tables (LUT) during the encryption steps. This dynamically construction model can solve the problem of huge overheads of LUTs and further enhance the performances. Moreover, unlike the previous related works, which are all static, we also propose a streaming scheme in addition to a static approach. Simulation results show that the proposed modification leads to a better compression performance while the security is not compromised.