文章基本信息

标题：Improved Image Steganographic System by using Multiple Encryption and DWT
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作者：Manoj Kumar Ramaiya ; Dr. Dinesh Goyal ; Dr. Naveen Hemrajani 等
期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2017
卷号：6
期号：8
页码：1244-1248
出版社：Shri Pannalal Research Institute of Technolgy
摘要：The protection of data over unsecure transmission network has continually a key concern in the consideration of investigators or cyber professionals. With the fast promising practice of the internet in all personnel and professional drives, the distress for the unauthorized entrance by an intruder and the valuable information will be later exploitation, has further put pressure on the industry or researchers for developing methods and techniques to protect the information from intruders involves in unlawful activities or cybercrime. Cryptography is the art which deal with the transmuting a valuable and confidential information into inaudible forms. This unintelligible information might produce mistrustful in the observance of opponents when it transfers on open or unsafe communication networks and only legitimate receiver can only understand it meaning by decoding it. Conversely, Steganography embed confidential information or secrete message in to a cover image and hides its existence. As a common practice, hiding of secrete data into other media is apply in communication on text, image or multimedia contents for the purpose of digital signature, intellectual property protection and authentication. Both Cryptographic and Steganographic methods delivers the adequate amount of security but are susceptible to intruder’s attacks when information flow over unsafe communication channel. Efforts to combines these techniques i.e. Steganography and Cryptography, gives the ultimate results in security enhancement. The steganographic techniques currently used mainly emphasis on embedding mechanism with fewer attention to pre-processing of valuable information. Pre-processing of data offer robustness, high security level and flexibility. The suggested hybrid mechanism is exclusive method for image steganography based on multiple encryption using Triple Data Encryption Algorithm (TDEA) improving the security over unsecure transmission channel.
关键词：Cryptography; Multiple encryption; TDEA; Digital Image Steganography; Discrete Wavelet Transforms.