实时隐秘传输嵌入方法与实现

为满足实时隐秘传输的要求,给出了一种实时高嵌入效率信息隐藏算法的硬件实现.该算法在长为n bit可修改宿主数据中,至多修改1 bit数据的情况下便可嵌入log2（n＋1）] bit的机密数据.嵌入算法已成功应用于语音中的信息隐藏.算法的硬件设计基于两级加密具有很高的安全性,硬件实现可达到85.7 MHz的处理速率,8路并行处理可达到530 Mb/s的数据吞吐量.一般可满足实时隐秘传输的要求.

Design and Its Implementation of Real-Time Data Hiding Algorithm for Covert Communication

To reach the demands of the real-time covert communication, the hardware implementation of a new kind of the high efficient information hiding algorithm is proposed. The proposed scheme can embed log_2(n+1)] bits of the changed covert data under the condition of one bit in the coverwords of n bit. The embedding algorithm successfully applies to information hiding in speech. It is pointed out that the hardware solution based on two levels encryption, guarantees a very high level of security. The speed of the hardware can reach 85.7 MHz and the hardware 530 Mb/s of data by using 8 channel parallel processing. The design can generally reach the demands of the high speed and real-time covert communication.