Abstract
To deal with the problems in the program speed and capacity of hidden information in traditional algorithms as expression reordering,a new software watermarking algorithm based on inverse number of expression's operand coefficient was proposed. Through the one-to-one relationship between the inverse number and the binary number,the dictionary mapping was got. According to the dictionary mapping,watermark encoding,watermark embedding and watermark extracting were implemented. The results of simulation show that the algorithm is obviously effective in improving the program speed and data rate of hidden watermark,and the capability of new software watermarking algorithm is better than those of algorithms as expression reordering.
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