Comparison of Text Watermarking Approaches with the Proposed Approach Based On Encryption Techniques Used For Creating Watermarks

Abstract: Due to advancement in science new technologies are emerging at a fast pace, so there is need of security while transferring data files or documents. Many techniques like steganography, hashing, cryptography and access control have been used so far. Watermarking is one of efficient technique used these days. Watermarking can be used in the areas of images, text, audio and videos. Text Watermarking is basically used for copyright protection of text documents. There are different methods used to create watermarks for the text documents. Syntactic, semantic, structural and natural language watermarking approaches are used for this purpose. Most of the languages like English, Turkish, Chinese and Arabic language text are using these techniques. Natural language watermarking is implemented to make watermarks using simple English language rules. It is a simple method and easy to implement. In the proposed technique components of English language like noun, pronoun, model verbs and conjunctions of user’s choice along with author id are used to create watermark of user’s choice. Moreover, encryption techniques RSA and AES and hybrid algorithm of both are applied to encrypt watermark and to enhance its security level to protect it from tampering attacks and to prove the most robust algorithm.

Keywords: Watermarks, RSA, AES, XOR, Key, Tampering, Robustness.