A Novel Quantum Steganography Scheme Based on ASCII DOI: http://dx.doi.org/10.5772/intechopen.86413

then 2n�<sup>2</sup> � <sup>2</sup>n�<sup>1</sup> pixels in the top-left corner, that is, the first block <sup>B</sup><sup>000</sup> is designated. For quantum text, the binary length of text message is eight, i.e., the text can be separated into eight bit-planes. Assume that the highest bit is embedded in B000, the second highest bit is embedded in B001, and so on. An example of partition with cover image size of 23 � <sup>2</sup><sup>3</sup> and secret text size of 21 � 22 is illustrated in Figure 9.
