Transmission of Secret Information Based on Time Instances

Abstract

This Paper presents improvement and extension of previous methodology about timing steganography based on network steganography. The previous article uses time interval between two successive time instances of transmissions mixed with cryptography prior to hiding. However, this improvement tends to extend and provide new methods based on single time instance unlike the previous methodology which depend on two-time instances such as hours, minutes, second, millisecond etc. It further examines how to handle effect of different time zone and high precision timing for ultrafast timing such as millisecond, and many more which human actions is too slow for perfect timing. In addition, the extension based on Transmission Control Protocol and Internet Protocol (TCP-IP) status codes where each element of set of status code are index and the index represents certain numeric of combination for hiding. Finally, the cryptography method is improved and extended to series-based cryptography with any defined number of different cryptography methods combined altogether with multiple keys generated dynamically. The methods for both cryptography and steganography were integrated and each module carefully tested for their feasibility and appropriate analysis, comparisons presented too. A brief discussion of possible extension or application of Time Interval and Instance Steganography from network based to Video and Audio time Steganography are presented which depends on time such as rate of change of features in Video, or in Audio as well. However, these video and audio Time steganography are considered as out of scope for this article which is mainly about network Steganography.