During the last decades, the production enterprises have gone through a strong global change in terms of shorter product life cycles, fluctuations in the order income and increased demand of customized products. Basically, a company needs to develop appealing products in terms of cost and quality that are brought to the market in timely manner. As many studies show that over 70% of the total li...

Information hiding can be seen everywhere in our daily life, and this technology improves the security of information. The requirements for information are becoming higher higher. coverless with help mapping relationship has high capacity, but there is still a problem which secret message cannot find process requires extra storage burden during transmission. Therefore, on basis symmetric revers...