期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2010
卷号：1
期号：2
页码：60
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The science of securing a data by encryption is Cryptography whereas the method of hiding secretmessages in other messages is Steganography, so that the secret’s very existence is concealed. The term‘Steganography’ describes the method of hiding cognitive content in another medium to avoid detectionby the intruders. This paper introduces two new methods wherein cryptography and steganography arecombined to encrypt the data as well as to hide the encrypted data in another medium so the fact that amessage being sent is concealed. One of the methods shows how to secure the image by converting it intocipher text by S-DES algorithm using a secret key and conceal this text in another image bysteganographic method. Another method shows a new way of hiding an image in another image byencrypting the image directly by S-DES algorithm using a key image and the data obtained is concealedin another image. The proposed method prevents the possibilities of steganalysis also.
关键词：Steganography; Cryptography; image hiding; least-significant bit (LSB) method
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