What Are Scripting Languages?
Languages like C and C++ allow a programmer to write code at a very detailed level which has good execution speed (especially in the case of C). But in most applications, execution speed is not important, and in many cases one would prefer to write at a higher level. For example, for text-manipulation applications, the basic unit in C/C++ is a character, while for languages like Perl and Python the basic units are lines of text and words within lines. One can work with lines and words in C/C++, but one must go to greater effort to accomplish the same thing.
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With the rise of model-driven development, model repositories are intended to facilitate research in model engineering and consequently in domain-specific modeling. Model repositories are central places where all kinds of modeling artifacts (e.g., meta-metamodels, metamodels, models, and possibly transformation models) are stored and coordinated. They can serve as a platform for making available the specification of metamodels to others (typically necessary for domain-specific modeling languages) and for exchanging models, as well as a resource for teaching/learning materials.
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Spider-Man is an action game based upon the Marvel Comics character, Spider-Man, and is directly based on the first feature film starring the character. It was developed by Treyarch and released in 2002 for PC and several video game consoles. The game has many scenes and villains that did not appear in the film. Spider-Man is a level based action game, with you playing as Spider-Man. Most levels are indoors, but some levels require you to web-sling from building to building. Levels are in “sections” with a different enemy for each, each section lasting about 3 levels.
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Two views of Bluetooth security Different security modes Security mechanisms on the host side Linux and HCI sniffing Bluetooth security in action Looking at the BlueSnarf attack Bluetooth architecture Application specific security mechanisms Bluetooth host security mechanisms Security mechanisms on the Bluetooth chip Bluetooth security • Link manager security • All security routines are inside the Bluetooth chip • Nothing is transmitted in “plain text” • Host stack security Interface for link manager security routines Part of the HCI specification Easy interface No further encryption of pin codes or keys Security modes • Security mode 1 • No active security enforcement
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The security mechanisms Known vulnerabilities Tools that are used Live demonstration Who is investigating Adam Laurie CSO of The Bunker Secure Hosting Ltd. DEFCON staff and organizer Maintainer of the Linux Bluetooth stack Marcel Holtmann Martin Herfurt
Security researcher Founder of trifinite.org What is this about What is Bluetooth Bluetooth SIG Trade association Founded 1998 Owns and licenses IP Bluetooth technology A general cable replacement Using the ISM band at 2.4 GHz Protocol stack and application profiles How it works Data and voice transmission ACL data connections SCO and eSCO voice channels Piconet and scatternet topology Frequency hopping 79 channels 1600 hops per second Creating the topology Hopping sequence defines the piconet
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This package is a DVI (TEX) to PDF conversion utility, having the following features: • Support for outline entries (also called bookmarks), named destinations, and annotations (including hyperlinks, forms and widgets). Nearly every Acrobat Distiller pdfmark is approximated. • Support for “standard” DVI specials such as HyperTEX (HTML), TPIC, color specials, PSfile, and other PostScript specials. • Native support for inclusion of MetaPost output and inclusion of arbitrary PostScript files with help from an external program. • Support for thumbnails with a little help from GhostScript to generate the thumbnails. • Support for arbitrary, nested linear transformations of typeset material.
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Buffer overflows have been the most common form of security vulnerability for the last ten years. More over, buffer overflow vulnerabilities dominate the area of remote network penetration vulnerabilities, where an anonymous Internet user seeks to gain partial or total control of a host. If buffer overflow vulnerabilities could be effectively eliminated, a very large portion of the most serious security threats would also be eliminated.
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Project Two views of Bluetooth security Different security modes Security mechanisms on the host side Linux and HCI sniffing Bluetooth security in action Looking at the BlueSnarf attack Link manager security • All security routines are inside the Bluetooth chip • Nothing is transmitted in “plain text” • Host stack security • Interface for link manager security routines • Part of the HCI specification • Easy interface • No further encryption of pin codes or keys
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