Data Hiding Algorithm For Bitmap Images Using Steganography

Powerful Essays
Researcher, 2010;2(12)

http://www.sciencepub.net/researcher

Data hiding Algorithm for Bitmap Images using Steganography
Mamta Juneja
Department of computer science and Engineering,RBIEBT,Sahuran er_mamta@yahoo.com Abstract: Steganography is related to cryptography and is the basis for many of the digital watermarking techniques currently being developed. The interest in data hiding has risen with the recent activity in digital copyright protection schemes. As the information age progresses and data become more and more valuable, methods need to be discovered to protect and secure sensitive data. This paper will discuss the applications of steganography including hiding data within: text, mpeg layer three and images. This paper also covers basic algorithm for implementing steganography within bitmap images.
[Mamta Juneja. Data hiding Algorithm for Bitmap Images using Steganography. Researcher. 2010;2(12):6773]. (ISSN: 1553-9865). http://www.sciencepub.net.
Keywords: Steganography, Bitmap images, Cryptography.
Steganography can also be used to verify data integrity. For example, take a document or image and encode a few words such as “Hello world” over the entire document’s length. One can then ensure data integrity by reversing the steganography process to see if the “Hello World” comes back as the hidden data. If the data is mangled that means that the original file has been changed. This data verification is just a branch of the watermarking concept and similar methods are used to watermark copyrighted information. The technology as a whole isn’t perfect. The data is only secured because it isn’t apparent that
“hidden data” even exists. The more data that is hidden within a document the more the document changes. For instance, an image may become more distorted and artifacts may occur, a document’s formatting or content may change, and an mp3 may have additional static or white noise. Popular tools exist that detect this change in a document; the process is



References: D. Kahn, The Codebreakers, Macmillian, New York, 1967. B. Norman, Secret Warfare, Acropolis Books, Washington D.C., 1973. Journal, Vol. 35, No. 3 and 4, pp. 313-336, 1996. Researcher, 2010;2(12) http://www.sciencepub.net/researcher to appear in the Proceedings of the IEEE, May, 1999 Contents, SPIE Vol. 3657, San Jose, CA, January 1999. UnZign software: http://altern.org/watermark, 1997. http://www.cl.cam.ac.uk/~fapp2/watermarking/st irmark, 1997. Computer Science, Vol. 1174, pp. 207-226, 1996. Vol. 1525, pp. 273-289, 1998. pp. 1673-1687, December 1997.

You May Also Find These Documents Helpful

  • Powerful Essays

    Image interpolation is a very important branch in image processing. It is widely used in imaging world, for example, image interpolation is often used in 3-D medical image to compensate for information insufficiency during image reconstruction by simulating additional images between two-dimensional images. Reversible data hiding has become significant branch in information hiding field. Reversibility allows the original media to be completely restored without any degradation after the embedded messages have been extracted. This study proposes a high-capacity image hiding scheme by exploiting an interpolating method called Interpolation by Neighboring Pixels (INP) on Maximum Difference Values to improve the performance of data hiding scheme proposed by Jung and Yoo. The proposed scheme offers the benefits of high embedding capacity with low computational complexity and good image quality. The experimental results showed that the proposed scheme has good performance for payload up to 2.28 bpp. Moreover, the INP yields higher PSNRs than other interpolating methods such as NMI, NNI and BI. Ó 2011 Elsevier Ltd. All rights reserved.…

    • 6788 Words
    • 28 Pages
    Powerful Essays
  • Good Essays

    Nt1310 Final Exam

    • 3599 Words
    • 15 Pages

    b. digital watermark (Incorrect. A digital watermark is used to identify proprietary data, but it does not protect privacy.)…

    • 3599 Words
    • 15 Pages
    Good Essays
  • Powerful Essays

    Speech Watermarking System

    • 3244 Words
    • 13 Pages

    With the rapid development of the speech, audio, image, and video compression methods, currently it is not a difficult task to spread digital multimedia over Internet. This makes the protections of digital intellectual property rights and content authentications have been a serious problem. Hence the technology of digital watermarking is received a large deal of attention. Generally, digital watermarking techniques are based on either spread spectrum methods or changing the least significant bits of selected coefficients of a certain signal transform. For speech watermarking, to ensure the embedded watermark is imperceptible, the audio marking phenomenon is considered together with these conventional techniques.…

    • 3244 Words
    • 13 Pages
    Powerful Essays
  • Good Essays

    Testbacksecurity

    • 2284 Words
    • 10 Pages

    A number of technical mechanisms—digital watermarks and embedded code, copyright codes, and even the intentional placement of bad sectors on software media—have been used to enforce copyright laws.…

    • 2284 Words
    • 10 Pages
    Good Essays
  • Satisfactory Essays

    This can be illustrated by the process of Steganography and encryption using the operating system functions. Steganography is a method of hiding the presence of a message or a file inside another much larger file or message without the forensics knowing it is there in the first place (Westphal, 2003). It is a deliberate act of keeping a message or data hidden. One good example would be hiding pornographic images inside an image…

    • 257 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Cryptography

    • 385 Words
    • 2 Pages

    SHA-1 encryption scheme was broken and was replaced with a third round version of itself.…

    • 385 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    The Nsa and Gchq

    • 3038 Words
    • 13 Pages

    If you want to keep information secret, you have two possible strategies: hide the existence of the information, or make the information unintelligible. Cryptography is the art and science of keeping information secure from unintended audiences, of encrypting it. Conversely, cryptanalysis is the art and science of breaking encoded data. The branch of mathematics encompassing both cryptography and cryptanalysis is cryptology. This method of secrecy has existed since 1900 B.C. in the form of Egyptian hieroglyphs. Up to the present two organizations have come to the front of the field; United States ' National Security Agency (NSA) and United Kingdom 's Government Communications Headquarters (GCHQ). In order to understand these institutions in their current state one must know their origins.…

    • 3038 Words
    • 13 Pages
    Powerful Essays
  • Good Essays

    Large data sets such as huge companies like Google to NHS hospital records to the Leather industry have similar ways of keeping huge amounts of data safe from other people’s eyes or keeping them tracked via a systematic barcode. All these data sets collect information in various ways. Their job is to keep it all protected for their customers and patients.…

    • 678 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Stenography

    • 1124 Words
    • 5 Pages

    Provos, Niels. (2004 September 5). Steganography Detection with Stegdetect. Retrieved March 30, 2011, from http://www.outguess.org/detection.php…

    • 1124 Words
    • 5 Pages
    Better Essays
  • Powerful Essays

    DIGITAL IMAGE PROCESSING

    • 1391 Words
    • 6 Pages

    The field of Image Processing refers to processing digital images by means of digital computer. One of the main application areas in Digital Image Processing methods is to improve the pictorial information for human interpretation.…

    • 1391 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    Coding: Questions

    • 2042 Words
    • 18 Pages

    Data hiding, which means that critical data stored inside the object is protected from code outside the object is accomplished in Java by…

    • 2042 Words
    • 18 Pages
    Good Essays
  • Better Essays

    E-Business Paper

    • 1010 Words
    • 5 Pages

    Steve Pain. (2007). Experts warn protection of data still not a top priority . Retrieved February 20, 2008, from University of Phoenix, Week Three, rEsource. BUS415 Web site.…

    • 1010 Words
    • 5 Pages
    Better Essays
  • Powerful Essays

    Abstract—In this paper, we address the problem of privacy protection in video surveillance. We introduce two efficient approaches to conceal regions of interest (ROIs) based on transform-domain or codestream-domain scrambling. In the first technique, the sign of selected transform coefficients is pseudorandomly flipped during encoding. In the second method, some bits of the codestream are pseudorandomly inverted. We address more specifically the cases of MPEG-4 as it is today the prevailing standard in video surveillance equipment. Simulations show that both techniques successfully hide private data in ROIs while the scene remains comprehensible. Additionally, the amount of noise introduced by the scrambling process can be adjusted. Finally, the impact on coding efficiency performance is small, and the required computational complexity is negligible. Index Terms—Privacy, selective encryption, surveillance, video processing.…

    • 4363 Words
    • 18 Pages
    Powerful Essays
  • Better Essays

    Data Encryption

    • 3732 Words
    • 15 Pages

    Often there has been a need to protect information from 'prying eyes'. In the electronic age, information that could otherwise benefit or educate a group or individual can also be used against such groups or individuals. Industrial espionage among highly competitive businesses often requires that extensive security measures be put into place. And, those who wish to exercise their personal freedom, outside of the oppressive nature of governments, may also wish to encrypt certain information to avoid suffering the penalties of going against the wishes of those who attempt to control.…

    • 3732 Words
    • 15 Pages
    Better Essays
  • Good Essays

    Steganography is the science of writing hidden messages in such a way that no one apart from the sender and intended recipient realizes there is a hidden message. In this technique, a secret message is hidden within an ordinary message and the extraction of it is done at its destination. The term steganography combines the two Ancient Greek words Steganos and graphein, where “steganos” means “covered, concealed, or protected” and “graphein” means “writing or drawing”. Thus, steganography is covered writing. The main purpose of steganography is to hide the fact of communication. The need to ensure that only the right people have authorization to high-security accesses, has led to the…

    • 9982 Words
    • 40 Pages
    Good Essays