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Encrypting a Text by Using Affine Cipher and Hiding it in the Colored Image by Using the Quantization stage | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 24, Issue 5, 2013, Pages 407-414 | ||
| Author | ||
| Salah Taha Alawi | ||
| Abstract | ||
| This paper focuses on the strength of combining cryptography and steganography methods and using an image compression (JPEG) to transfer the text being one of the most kinds that used through internet. This work begins by encrypting the text using one of the classical cryptography methods (Affine method), then converting the result of the encryption text to sequence of binary numbers (0,1). The operation of text hiding happens during steps of converting the entered image BMP to compression image JPEG holding the encryption text through making a change in the original data for some pixels when needed by adding or subtracting to/from the data of these pixels. | ||
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