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Digital Watermarking Through Embedding of Encrypted and Arithmetically Compressed Data into Image Using Variable-Length Key

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Executive Summary

In this paper, the authors have encrypted a text to an array of data bits through arithmetic coding technique. For this, they have assigned a unique range for both, a number of characters and groups using those. Using unique range they may assign range only 10 characters. If they want to encrypt a large number of characters, then every character has to assign a range with their group range of hundred, thousand and so on. Long textual message which have to encrypt, is subdivided into a number of groups with few characters.

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