CAJ | 학술논문

自然语言信息隐藏技术是近年来信息安全领域的一个研究热点。文中通过对现有自然语言信息隐藏算法进行分析,发现现有算法普遍存在隐藏容量不足,无法通用于多种应用场景的问题。为获得容量足够大且通用性好的隐藏方案,提出了一种自然语言信息隐藏通用抽象算法。该抽象算法以载体单元的概念为纽带,将自然语言信息隐藏算法分离为载体操纵算法和隐藏编码算法,继而实现了对现有算法的抽象。该抽象算法可以实现多种载体操纵算法的协同使用,最大程度地利用文本内容,有效提高了隐藏容量,同时由于可以针对不同的应用场景灵活搭配不同的嵌入方案,解决了通用性问题。最后通过实验证明该抽象算法的通用性。
자연어언신식은장기술시근년래신식안전영역적일개연구열점。문중통과대현유자연어언신식은장산법진행분석,발현현유산법보편존재은장용량불족,무법통용우다충응용장경적문제。위획득용량족구대차통용성호적은장방안,제출료일충자연어언신식은장통용추상산법。해추상산법이재체단원적개념위뉴대,장자연어언신식은장산법분리위재체조종산법화은장편마산법,계이실현료대현유산법적추상。해추상산법가이실현다충재체조종산법적협동사용,최대정도지이용문본내용,유효제고료은장용량,동시유우가이침대불동적응용장경령활탑배불동적감입방안,해결료통용성문제。최후통과실험증명해추상산법적통용성。
Natural language information hiding technology has been a research focus in the field of information security in recent years.Based on the analysis of the existing information hiding algorithms for natural language,we find that existing algorithms do not have enough hidden capacity and can not be applied to a variety of scenarios.In order to obtain a scheme with enough capacity and versatility,this paper presents a common abstract algorithm for natural language information hiding.With the concept of the cover unit as a link,the abstract algorithm divides the natural language information hiding algorithm into the cover control algorithm and hiding coding algorithm,and then realizes the abstraction of the existing algorithm.The abstract algorithm realizes the conjunctive use of a variety of cover control algorithms and effectively improves the hiding capacity.Because different embedded solutions can be flexibly applied to different scenarios,the versatility of the algorithm is achieved.Experimental results show that the abstract algorithm is versatile.