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Topic: Integrity (operating system)

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	Protecting System Integrity
		The basic idea behind system integrity is this: by periodically monitoring the changes that occur to a computer's files and directories, it becomes a simple matter to later determine 1) if a machine has been exploited, and 2) what changes were made to the system by the exploit.
		Without system integrity, it is difficult to detect if an exploit has occurred, and next to impossible to perform a comprehensive cleanup of the machine, short of a complete OS and application reinstall.
		System integrity checking is only one piece in the puzzle of computer security, but clearly it's a valuable one—and one that is becoming more important every day.
	cc.uoregon.edu /cnews/fall2003/sysintegrity.html (1876 words)

	PRESS RELEASE Green Hills Software Announces Landmark POSIX Certification (Site not responding. Last check: 2007-11-05)
		INTEGRITY real-time operating system (RTOS), used in embedded systems, as the first operating systems to be certified under "POSIX®: Certified by IEEE and The Open Group" program.
		INTEGRITY is also the first operating system to begin Common Criteria security evaluation at EAL6+, a level of assurance that has never been achieved by any other operating system (http://www.ghs.com/news/20050829_eal6_skpp.html).
		The same operating system technology forms the basis for INTEGRITY Workstation which was developed for next-generation secure desktop and server applications, such as multi-level secure PCs for the military and intelligence communities, IT systems such as SCADA that are critical to homeland security, and financial banking systems.
	www.marketwire.com /mw/release_html_b1?release_id=126003 (886 words)

	Enhancing File System Integrity Through Checksums (Site not responding. Last check: 2007-11-05)
		A stackable file system has many advantages: significant among them being minimal development overhead, portability, no change to the existing file systems etc. When it is easy to develop a stackable file system, there are some operations that cannot be done using it.
		Since a stackable file system has the responsibility of being good to a variety of underlying file systems, it provides a higher level abstraction to the level of a file, which makes certain lower level operations almost impossible to perform from the stackable level.
		In UNIX-like operating systems where accessing the raw disk is easy, a malicious user can attempt to modify file data by directly accessing the disk which the file system would have no knowledge of.
	www.filesystems.org /docs/nc-checksum-tr/nc-checksum.html (3062 words)

	SoftClan Integrity 2.5
		Integrity 2 protects a system from being harmed by viruses when a computer is most vulnerable -- the time between anti-virus updates and when unknown viruses attempt to do harm to the system.
		Integrity 2 is the ideal complement to any anti-virus program, because it avoids the destructive action of any malicious virus (known or unknown) over the critical system files.
		Integrity 2 will NOT allow your critical system files, or personal files stored in the "shielded" folder to be deleted or altered, either by accident or due to rogue applications, installers, uninstallers or a careless user.
	www.gtpcc.org /gtpcc/softclanintegrity2.htm (1921 words)

	Windows rootkits of 2005, part three
		Although once a computer system has been subverted by a rootkit it is extremely difficult to detect or eradicate the rootkit, there are still some different methodologies that detect the rootkit that have worked to varying degrees.
		System files are scanned for a sequence of bytes that comprise a "fingerprint" that is unique to a particular rootkit.
		Memory integrity checking is provided by comparing the code sections for important system libraries and drivers on disk with their corresponding loaded images in memory.
	www.securityfocus.com /infocus/1854 (3194 words)

	RTOS - INTEGRITY - embedded os, secure os, embedded real-time operating system - Green Hills Software
		INTEGRITY® is a secure, royalty-free Real-Time Operating System intended for use in embedded systems that require maximum reliability.
		INTEGRITY uses hardware memory protection to isolate and protect itself and user tasks from incorrect operation caused by accidental errors or malicious tampering.
		It is first and foremost a true hard real-time operating system.
	www.ghs.com /products/rtos/integrity.html (254 words)

	INTEGRITY PC Software \| Technology News Daily (Site not responding. Last check: 2007-11-05)
		INTEGRITY PC has enabled Boeing to take advantage of existing Linux-based software, freeing it from having to port Linux code to a secure operating system and enabling easy future updates to the Linux-based code.
		Because the monitoring function is performed by a native INTEGRITY application, it cannot be subverted or disabled by software running under a guest operating system.
		The INTEGRITY RTOS is the first and only operating system to be certified under the "POSIX(R): Certified by IEEE and The Open Group" program to the 1003.1 -2003 System Interfaces Product Standard and is listed on the certification register at http://get.posixcertified.ieee.org/register.html.
	www.technologynewsdaily.com /node/44 (874 words)

	High-reliability OS hosts legacy applications: News from Green Hills Software
		Integrity PC is an extension to the Integrity operating system that enables the incorporation of legacy applications and traditional operating systems into high-security high-reliability applications.
		Key features and security threats addressed by Integrity PC include: guest operating systems and their applications run as 'user mode' Integrity applications, which means that they cannot alter the hardware's configuration.
		Integrity PC running on PowerPC processors with support for Linux as a guest operating system is available today.
	www.electronicstalk.com /news/gre/gre178.html (845 words)

	The COSA Operating System
		It is the part of the COSA operating system that handles the reactive logic for the entire system.
		An ideal COSA operating system would have no algorithmic processes whatsoever as all objects would be self-processing and would communicate via direct connection pathways, not unlike biological neurons.
		Since the system is driven by change, only the cells that are directly affected by events need to be processed during any given cycle.
	www.rebelscience.org /Cosas/System.htm (6568 words)

	Runtime Integrity and Presence Verification for Software Agents
		With 97 percent of U.S. enterprise networks using perimeter firewalls, and 72 percent employing intrusion detection systems, 55 percent of networks (2005 CSI/FBI Computer Crime and Security Survey) were still attacked by worms or viruses, and 95 percent experienced internal system penetration or some kind of unauthorized access.
		The integrity measurement manager, or IMM, performs critical integrity and execution-detection checks on the protected host agent to make sure the agent has not been tampered with and is still executing.
		The integrity manifest is used by the ISM to verify the integrity of the host agent.
	www.intel.com /technology/magazine/research/runtime-integrity-1205.htm (2700 words)

	Network Operating System (Site not responding. Last check: 2007-11-05)
		A network operating system (NOS) is a software package that makes it possible to implement and control a network and enables users to use the resources and services on that network.
		In most of these cases, the operating system's networking capabilities can be greatly enhanced through the use of utilities or other third-party programs.
		If the firewall requires an operating system such as UNIXR, a secured version of the operating system should be part of the firewall, with other security tools as necessary to ensure firewall host integrity.
	www.tpub.com /innc/13.htm (952 words)

	Real-time, Open-Source Tradeoffs Drive OS Choices \| COTS Journal
		Essentially INTEGRITY PC functions as a padded cell that prevents Linux and other insecure and unreliable software from harming the rest of a system while also limiting the harm it can do to itself.
		A long-time player in the real-time operating system market, the company was an early convert to the Linux camp.
		Data is presented from the Open Systems Joint Task Force (OSJTF), the working group within the Department of Defense (DoD) responsible for accelerating the adoption of open systems in the military.
	www.cotsjournalonline.com /home/article.php?id=100219 (688 words)

	Digital Integrity Solutions, LLC - Information Technology & Security Solutions
		The primary objective of the Act is to assure the integrity of financial statements.
		A key aspect of financial system integrity is the control and security of the financial systems and IT infrastructure that supports those systems.
		Because of the criminal penalties, CIOs also should expect to be asked to sign an internal attestation on their systems to further protect the enterprise in case of CIO negligence in maintaining these systems.
	digitalintegritysolutions.com /sox.php (1028 words)

	SecurityDocs: Operating System
		Operating Systems can be viewed as a resource manager, responsible for fair resource sharing between different processes in the system.
		On the other hand, Operating systems control access to application memory and scheduling of the processor.
		In addition the operating system provides tools for security policy and account management and the Windows NT security model is flexible and can support a wide range of configurations.
	www.securitydocs.com /Operating_System (687 words)

	LinuxElectrons - Green Hills Software Issues White Paper: ``Linux in Defense: Free Software Is Just Too Expensive''
		If Linux is burned into ROM or flash memory in a missile, a bomb, or a tank, the system will have to be recalled to the factory or technicians will have to be deployed into the field at great cost to retrofit every system.
		If these systems are deployed in a war zone, soldiers under fire are going to be very unhappy when you take away their weapons or defenses to patch security holes.
		Systems that are buried underground, or under the sea, or in space, or in foreign countries will be especially difficult and expensive to recall and retrofit.
	www.linuxelectrons.com /article.php/20040510093534444 (718 words)

	Green Hills Software - Wikipedia, the free encyclopedia
		INTEGRITY is a royalty-free POSIX-certified real-time operating system.
		INTEGRITY is intended for use in embedded systems requiring maximum reliability, maximum availability, and fault tolerance.
		INTEGRITY-178B is an ARINC-653-1–compliant, securely partitioned real-time operating system that targets demanding, safety-critical applications containing multiple programs with different levels of safety criticality, all executing on a single processor.
	en.wikipedia.org /wiki/Green_Hills_Software (767 words)

	Avionics Computers
		The microkernel's system awareness allows the OS to uniquely support advanced access control mechanisms that are applicable to all kernel objects such as semaphores and tasks.
		The Integrity operating system's reliability, security, and maturity have made it the real time operating system of choice for a growing number of aircraft.
		Green Hills Software develops real-time operating systems and software development tools for 32- and 64-bit embedded systems.
	www.yenra.net /avionics (305 words)

	Green Hills Software Expands Leadership in Software Defined Radio Market with Optimized Software Platform; POSIX ...
		INTEGRITY complies with the Multiple Independent Levels of Security (MILS) architecture and has a high-assurance Separation Kernel at its core.
		INTEGRITY is the only RTOS that provides complete support for the guaranteed separation of SDR waveforms in a single microprocessor Multi-Level Radio, which concurrently supports different security classification levels.
		This makes PJFS ideal for systems that must be highly reliable and boot rapidly in the field, where time to information and information reliability is of the utmost importance.
	www.findarticles.com /p/articles/mi_m0EIN/is_2005_Nov_15/ai_n15799563 (732 words)

	[No title]
		Applications designed for use with a real time operating system (RTOS) are structured as a set of autonomous tasks.
		INTEGRITY is a fast, deterministic, royalty-free RTOS designed for applications that require high performance and maximum reliability.
		Utilizing the hardware memory protection facilities of the PowerPC's memory management unit (MMU), INTEGRITY builds a firewall between the kernel and user tasks that prevents errant or malicious code from corrupting user data, the kernel, interprocess communications, device drivers and other user tasks.
	www.lycos.com /info/real-time-operating-system--tasks.html (387 words)

	What is UNIX System Administration
		Administer Sun server and network: system configuration, user id/creation/maintenance, security administration, system backup, and ensuring all applications are running on the system properly.
		Systems administration is the installation and maintenance of the UNIX computer system.
		The system administrator can assume superuser, or root, privileges to perform many tasks not normally available to the average user of the system.
	www.waketech.edu /~rhgrove/cis279ch01.htm (1588 words)

	Linux Breaks Down Barriers to Acceptance \| COTS Journal
		A long-time player in the real-time operating system market, LynuxWorks was an early convert to the Linux camp.
		Background is presented about the Open Systems Joint Task Force (OSJTF), the working group within the Department of Defense (DoD) responsible for accelerating the adoption of open systems in the military.
		INTEGRITY PC (Padded Cell) partitions a system into multiple “virtual computers,” each of which can host its own guest operating system.
	www.cotsjournalonline.com /home/article.php?id=100324 (708 words)

	Spectrum Signal Processing and Green Hills Software Partner to Offer INTEGRITY Real-Time Operating System on SDR-4000 : ... (Site not responding. Last check: 2007-11-05)
		INTEGRITY provides a royalty-free RTOS supporting the POSIX system interfaces that are critical components in many SDR implementations and are required by the Software Communications Architecture (SCA).
		INTEGRITY RTOS will be pre-integrated onto the platform to provide high performance features such as virtual memory management, rapid real-time response, and networking and communications protocols.
		Founded in 1982, Green Hills Software, Inc. is a technology leader in real-time operating systems and device software optimization for 32- and 64-bit embedded systems.
	press.arrivenet.com /business/article.php/757378.html (941 words)

	Green Hills, GHS, MULTI, 2000, RTOS, Integrity, PC Secure, JTAG, BDM, Debug, Probe, Embedded,DO-170B Aerospace, ...
		INTEGRITY PC is an extension to the INTEGRITY real-time operating system (RTOS) that enables developers of high-security and high-reliability systems to incorporate guest applications and operating systems—such as Linux—that do not otherwise satisfy a system’s security and reliability requirements.
		An impenetrable wall around each guest operating system ensures that errant, insecure, or malicious code can never compromise the security or reliability of the rest of the system—either inadvertently or via a hostile attack.
		Without INTEGRITY PC, legacy software would need to be re-written before it could be used in a secure system—both to ensure that the software provides adequate security assurance and to use an underlying secure operating system.
	www.testech-elect.com /ghs/real-intpc.htm (804 words)

	Solaris Operating System
		The Solaris 10 Operating System (OS) includes advanced security features that were once only available to customers of the Trusted Solaris OS.
		BART can be used by customers to check the integrity of their own files, such as customer data or transaction records, or system files such as password files or login scripts.
		In Solaris 10, any application can be granted specific privileges to perform system operations that previously would have required giving that process complete superuser (root, UID 0) access to the system.
	www.sun.com /software/solaris/faqs/security.xml (911 words)

	Green Hills Partner Domain
		Green Hills' INTEGRITY is a secure, royalty-free Real-Time Operating System intended for use in embedded systems that require maximum reliability.
		Without the burden of compatibility with 1980's vintage products, INTEGRITY was designed from the ground up for 32-bit and 64-bit embedded processors, and employs the latest in RTOS technology.
		INTEGRITY achieves unprecedented levels of reliability, availability, and serviceability for applications in telecommunications, defense, networking and medical equipment along with many other industries.
	www.interpeak.com /partners/partner_ghs.php3 (101 words)

	Embedded.com - Green Hills rolls secure file system
		The file system is designed to work with the company’s Integrity operating system, and writes to either rotating disk media or flash in both its NOR and NAND forms.
		The file system will become generally available in the first quarter of 2006, aimed at customers in the avionics, automotive, telematics, infotainment and medical device markets.
		The file system provides "a high assurance add-on to a high-assurance kernel,” allowing both top secret and open information to be stored on the same hardware, Wolf said.
	www.embedded.com /showArticle.jhtml?articleID=173600448 (520 words)

	IQ Online - Partner News
		Built on velOSity, the INTEGRITY real-time operating system takes advantage of the memory protection capability built-in to most processors in order to provide total reliability and absolute security for open and connected systems.
		The INTEGRITY operating system is also certified conformant to the standard POSIX application programming interface.
		The velOSity and INTEGRITY operating systems have fast boot times, which can be lower than 20 milliseconds, allowing systems to respond to the stringent requirements of the in-car bus.
	www.arm.com /iqonline/news/partnernews/8822.html (481 words)

	EETIMES
		Chicago — Despite lingering debates over its suitability in secure systems, the Linux operating system appeared poised last week to play a strong supporting role in highly security-critical applications, ranging from battlefield hardware to cities’ electrical power grids.
		In all three cases, Linux would be called on to serve not as a secure operating system in itself but as software for an application that would lie atop of—and be partitioned away from—a secure system.
		Security experts have said that such highly certified systems are necessary because such commonly used operating systems as Windows, Linux and Solaris are not sufficiently safe for security-critical applications.
	www.acumeninfo.com /eprints/5497greenhills.html (1168 words)

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