VSL can be downloaded and installed as part of free edition of Intel® Keylight™ software package. Nowadays, steganography is a widespread field of investigation of data hiding techniques. In a broader perspective, the term steganography refers to encoding of information in a way that cannot be perceived by human or machine eyes, or even by more sophisticated means like scanners and/or dissimilar analysis. In other words, as a successful technique, steganography embeds hidden information in such a way that does not jeopardize the original, unaltered content. In particular, steganography is the practice of hiding any kind of information in a way that does not create any visible sign of the existence of the embedded data. Steganography methods can be divided into two broad categories: covert and overt. Covert steganography tries to hide the presence of the data within the content; thus, the stego-signature, the data and its embedding method are invisible to the user of the original, non-steganographic content. On the other hand, overt steganography uses the visible or otherwise accessible content to hide a secret, usually to prevent leaking of information. The key feature of the stego-signature (also called “stego-pattern”) is that it contains information about the secret message which has been hidden within the original content. A key aspect of covert steganography is the stego-key, which is the embedding tool used to hide information in the content. Because the stego-key is not directly visible in the content, it can be encrypted, digitally altered, re-arranged, split, or mixed with other material in the content. It is not necessarily a secret in itself. The importance of stego-key lays in its ability to allow the data embedded in the content to be concealed. Such stego-key is considered the enabling technology of steganography. The following are the basic steps in the creation of a secret message using steganography: (a) stego-key generation, (b) embedding of the stego-key in the steganographic content, and (c) distribution of the content. For example, in the embodiment of FIG. 1, the steganographic content 110 includes a stego-key 120 and a secret message 130. The steganographic content (stego-data) 110
It is an image steganography program with a back-end plug-in to provide the following functionality: - Generate a continuous stream of images (digital key), - Based on the images in the stream, print out a continuous stream of images (digital key) - Store the digital key in a format that allows the image to be printed as a check. VSL provides a basic GUI for setting up your own digital keys and tests the digital key images against a signature. VSL has a library that contains classes for the functionality mentioned above. Features: - This software is written in Delphi for Windows and allows the creation of digital keys with up to 4096 key-streams. - Each key stream is printed to the screen at a rate of 2 to 15 prints per second, depending on the setting of the application. The printer used is a small USB printer attached to a PC. - Store the digital key in a format that allows the images to be printed as a check. - Implement checks, such as, the method used to secure the print, that allows the printer to print the image securely. - Verify a digital key by printing it out as a check. This means that it will be possible to verify a key through the check. - Verify the digital key by printing it out and comparing it to another printed check. This means that the key will be verified by comparing one key against another. - Scan the digital key image and store the image for later use. This feature is useful for later comparisons. - Generate a digital key from a captured image. - Generate a digital key from a human voice. - Print the digital key using a digital camera. - Load and generate a key from a list of keys. - Print the digital key using a webcam. - Print the digital key using a smartphone or smartphone application. - Verify the digital key using a smartphone or smartphone application. - Verify a digital key against an image. - Verify a digital key against a set of digital keys. - Verify a digital key against a set of key streams. - Verify a key stream against a set of digital keys. - Verify a key stream against a set of key streams. - Generate a printable image based on a digital key. - Generate a printable image from a captured image. - Read an image and print the image. - Read an image and print the image. b78a707d53
VRML (Virtual Reality Modeling Language) describes a standardized format for the specification of 3D virtual worlds. VRML is a family of markup languages that are intended to support the creation, editing, viewing, and communication of virtual worlds that may be graphically represented in a two- or three-dimensional (2D or 3D) space. Applications of VRML include 3D modeling, 3D animation, 3D gaming, 3D data analysis, 3D publishing, and 3D web applications. (R)VRML is a language for describing virtual reality worlds. As a platform independent language, VRML is available for workstation-based computing, networked computing, and embedded computing systems. VRML is often associated with the acronym X3D; however, as a platform-independent VRML standard, the name X3D has no meaning in VRML. VRML and X3D are implemented as XML languages that can be easily read and written by humans and which are thus well-suited for use by non-programmers. This encourages their use by non-programmers as well as programmers and graphic designers. VRML was originally developed as a wireframe, scene-graph, and multi-user shared virtual reality environment with a special emphasis on graphics. VRML's original goal was to provide a means of creating realistic virtual environments that can be interacted with by users. VRML is based on the network concepts of the World Wide Web but uses a different XML-based language. VRML is based on the XML (eXtensible Markup Language) language, a format for embedding the descriptions of hypertext documents in other documents. The HTML (HyperText Markup Language) family of documents is a well-known example of this use of XML. VRML is similar to DHTML (Dynamic HTML). In both VRML and DHTML, the actual contents of a web page are specified in a separate file. A web browser parses the contents of the HTML file and displays them. In VRML, the web browser displays the contents of the VRML file as well. This works in much the same way as the contents of an image file are displayed by the web browser if the image file is stored in an image directory, rather than a document directory. Unlike DHTML, which is an application of HTML to provide an interface for creating new web pages, VRML is a language for defining virtual reality scenes, which are created by using 3D
VSL was developed to provide a graphical, systematic and modular platform for the analysis of steganographic methods. VSL is capable of running on any UNIX/LINUX platform. Download: Distribution package The main package and the package with demos is available at here. The distribution package is about 11 megabytes big, including the demos. Sample application: A sample application that runs in JXAWT for embedding/decoding messages is available at here. It uses the components of VSL, and it is available for Linux, Mac and Windows. Modules Each component of VSL has a plug-in architecture and provides its own user interface for performing the analysis. There are currently three modules that are capable of steganography: embed - insertion of information check - detection of information encode - image encoder encoder - image encoder Decoder - image decoder cipher - cipher decoder - cipher disguise - disguise error handler - error handler detector - detector enc_dec - enc_dec - encoder/decoder Analysis VSL also provides additional plug-in modules for detection and analysis of steganographic methods. These modules use the components described above to perform the analysis. Tutorials and help Most of the tutorials can be found at here. See also Steganography Steganalysis References Category:Steganography softwareQ: Dynamically Adding Fields to a Form I am trying to dynamically add fields to a form. Currently, I have a listbox that will hold all of the item names. When the user selects an item, I am using the For loop to add them to the form. I am currently adding a textbox to the first row on the form. I want to add a textbox for each row selected in the listbox. I am also trying to do this in an event for when the user clicks the add button in the form. This is what I have so far: private void btn_add_Click(object sender, EventArgs e) { for (int i = 0; i < cmb_list.SelectedIndex + 1; i++) { Controls.Add(new TextBox()); } } When I click the button, I get an exception: ArgumentOutOfRangeException Index was out of range. Must be non-negative and less than the size of the collection. A: The problem is here: for (int i = 0; i < cmb_list.SelectedIndex + 1; i++) {
2.0 GHz Processor 512 MB of RAM 3 GB of available hard drive space 1024×768 resolution display One of the following graphics cards: NVIDIA GeForce 9800 or ATI Radeon X1300 NVIDIA GeForce 6600 or ATI Radeon X800 NVIDIA GeForce FX 5800 NVIDIA GeForce 6800 GS NVIDIA GeForce FX 5900 NVIDIA GeForce 8800 GTX NVIDIA GeForce 8800 GT NVIDIA GeForce 8800 GTS NVIDIA GeForce 8800 GTS
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