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	Practical Secure Hardware Design for Embedded Systems (Part 1 of 2) > Tamper Mechanisms (Site not responding. Last check: 2007-10-15)
		A side benefit of many tamper resistant mechanisms is that they are often tamper evident, meaning that physical changes can be visually observed and it becomes obvious that the product has been tampered with.
		Tamper evidence features are only successful if a process is in place to check whether tampering has occurred or if a legitimate owner of the device notices a deformity.
		Tamper response mechanisms are the countermeasures taken upon the detection of tampering.
	www.informit.com /articles/article.asp?p=328170&seqNum=3 (1618 words)

	Tamper resistance - Wikipedia, the free encyclopedia
		Tamper resistance is resistance to tampering by either the normal users of the system or others with physical access to it.
		Tamper proof screws are also used on electrical fittings in many public buildings primarily to stop tampering or vandalism that may cause a danger to others.
		Tamper resistant chips may be designed to zeroise their sensitive data (especially cryptographic keys) if they detect penetration of their security encapsulation or out-of-specification environmental parameters.
	en.wikipedia.org /wiki/Tamper_resistance (888 words)

	Tamper Resistant (Site not responding. Last check: 2007-10-15)
		Tampere was founded as a market place around Tammerkoski river in 1775 by Gustav III of Sweden and four years later, 1779, it was granted a full township status.
		University of Tampere is a university in Tampere, Finland.
		Jury tampering is the crime of unduly attempting to influence the composition and/or decisions of a jury during the course of a trial.
	www.blownspeakers.com /pages3/87/tamper-resistant.html (777 words)

	Safeguards Seal's Program (Site not responding. Last check: 2007-10-15)
		Tamper tapes bonded to surfaces using pressure sensitive adhesive (PSA) and four rapid-set adhesives were evaluated.
		The configurations of the rapid-set adhesive-bonded tamper tapes were 2.54-cm-wide Confirm {reg_sign} (1700, 1500 with and without primer, and 1300) windows with vinyl underlay.
		Tamper tapes were also exposed to a variety of chemical liquids (including organic solvents, acids, bases, and oxidizing liquids) to determine chemical resistance and to sand to determine abrasion resistance.
	www.sandia.gov /doe-oss/documents/accelerated-aging/accelerated.html (258 words)

	Selective tamper resistance for on-package peelable premiums - Patent 4324823
		Since the amount of moisture required to release or free the pull tab area could be derived, in an effort to illegally tamper therewith, by application of minor amounts of moisture such as saliva of the transgressor at the point of sale, the construction did not afford sufficient resistance to tampering to fulfill its objective.
		This is a preferred release coat pattern configuration to resist unauthorized tampering with the coupon since adherance of the coupon to the board is at its maximum along the leading edge area at the precise edge itself and gradually reduces to minimize tears and needless stress as the peeling progresses.
		4 is one which provides satisfactory tamper resistance since the degree of adhesion is greatest at the exact or precise starting edge and gradually diminishes as the peeling continues to thereby minimize tearing of the coupon at this stage of removal.
	www.freepatentsonline.com /4324823.html (2245 words)

	Schneier on Security: Tamper-Evident Seals
		Tamper resistance should indicate when it is interfered with, removed, or altered in any way.
		Don't overlook that with product tampering labels one is usually presented with a collection of the same item to choose from on a store shelf.
		However, examination of tampered items & distribution of tampered batch numbers indicated the offender had purchased the product at a small number of closely located stores, tampered with it elsewhere (likely at home), and surreptitiously returned it to several different stores.
	www.schneier.com /blog/archives/2006/10/tamperevident_s.html (1370 words)

	Tamper resistance -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-15)
		Sometimes (especially in order to avoid (A legal proceeding in a court; a judicial contest to determine and enforce legal rights) litigation), manufacturers go further and use tamper proof screws, which cannot be unfastened with standard equipment.
		Tamper resistant chips may be designed to (Click link for more info and facts about zeroise) zeroise their sensitive data (especially (Click link for more info and facts about cryptographic key) cryptographic keys) if they detect penetration of their security encapsulation or out-of-specification environmental parameters.
		If implemented, (Click link for more info and facts about trusted computing) trusted computing would make software tampering of protected programs at least as difficult as hardware tampering, as the user would have to hack the trust chip to give false certifications in order to bypass remote attestation and sealed storage.
	www.absoluteastronomy.com /encyclopedia/t/ta/tamper_resistance.htm (989 words)

	Electrical Resistance
		The electrical resistance of a circuit component or device is defined as the ratio of the...
		The resistance of the conductor is defined to be the ratio R = V/I...
		Electrical resistance is a measure of the degree to which an electrical component opposes the passage of current.
	sitecenter.brandnametools.biz /electrical-resistance.html (235 words)

	VIASPACE - national security, homeland defense, supply chain management, asset tracking, portable power, software - ... (Site not responding. Last check: 2007-10-15)
		The patent application on tamper with resistance includes several low cost approaches that are applicable to fuel cell cartridges, and also to other containers that hold substances that need to be kept out of the reach of children.
		Tamper resistance and authentication are important technologies that apply to fuel cell cartridges, but also may have substantial markets in other areas.
		Such forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements.
	www.viaspace.com /press_content.asp?id=1064 (530 words)

	Tamper Resistance
		This paper describes a number of attacks on tamper-resistant systems, and concludes that relying entirely on tamper resistance for protection is probably insufficient, regardless of the claims from manufacturers of such devices.
		The authors recommend that any secure system be engineered in such a way that compromise of a small number of accessible devices (such as smart cards) does not break the entire system.
		The authors conclude from this that even without cost considerations, tamper proof systems are not realizable.
	ciae.cs.uiuc.edu /SRG/summaries/summary-6-20-02.htm (359 words)

	HUT - TML - Studies - Tik-110.501 - Introduction of topics - Terminal security (Site not responding. Last check: 2007-10-15)
		The goal of the resulting paper is to explain the different requirements set for the level of tamper resistance in different applications.
		The limitations of tamper resistance should be clarified together with methods used in achieving tamper resistance.
		A survey of security architectures relying on tamper resistance and their success is also expected.
	www.tml.hut.fi /Opinnot/Tik-110.501/2000/intro/terminal.html (210 words)

	CSE 227: Lecture 3 (Site not responding. Last check: 2007-10-15)
		We covered notions of tamper resistance, tamper evidence, and tamper responding.
		Bank vaults are tamper resistant: they are hard to drill through.
		Medicine bottle caps are tamper evident: it is hard to open the bottle (to tamper with the pills) without breaking the seals.
	www.bennetyee.org /ucsd-pages/Courses/cse227.w03/lec03 (308 words)

	How to solve common tamper-evident sealing problems: here are solutions to some operation issues inherent with the top ... (Site not responding. Last check: 2007-10-15)
		The goal should be tamper resistance and, more critically, tamper evidency.
		Tamper resistance means that it is difficult to compromise the contents of a package.
		Tamper evidency means that, if the contents are compromised, it is clearly evident to the consumer that tampering has occurred prior to use.
	www.findarticles.com /p/articles/mi_m0UQX/is_3_67/ai_99746649 (949 words)

	Anderson: The unmaking of Mondex
		Tamper resistance is not to be relied upon, says a man show should know
		Tamper Resistance was written with Markus Kuhn, the German student who rose to prominence by breaking BSkyB Europe's smartcard and writing Season 7, the Sky card emulator for the PC.
		In the course of research for `Tamper Resistance...', Kuhn used techniques developed by Sky hackers to break the Dallas 502, the security chip used by the Bank of England.
	www.efc.ca /pages/media/nz-computerworld.12may97b.html (1561 words)

	Tamper Resistance - A Cautionary Note
		He stated that he would discuss hardware security and tamper resistance in terms of three classes of potential attackers: clever outsiders, knowledgeable insiders, and funded organizations.
		The tamper resistant coating on the Motorola smart card chip can be dissolved with $30 worth of fuming nitric acid and acetone.
		Markus concluded by stating that the moral is not to blindly trust manufacturer claims about tamper resistance, avoid global secrets, reduce the importance of tamper resistance whenever possible, use fault-tolerant machine code in smart cards, implement fallback modes and insist on in-depth hostile review of designs.
	www.usenix.org /publications/library/proceedings/ec96/summaries/node3.html (383 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Appealing aspects of this approach to software tamper resistance include the promise of being able to verify the integrity of software independent of the external support environment, as well as the ability to integrate code protection mechanisms automatically.
		The generality and efficiency of our attack suggests that current self-hashing techniques are not viable strategies for high-security tamper resistance on modern computer systems.
		I will discuss the effects our attack has on self-hashing software tamper resistance, including what must be done in order for a defender to successfully guard against our attack.
	www.scs.carleton.ca /~kranakis/IT/IT-05-abstracts/wurster.txt (174 words)

	Tamper Resistance - a Cautionary Note
		We conclude that trusting tamper resistance is problematic; smartcards are broken routinely, and even a device that was described by a government signals agency as `the most secure processor generally available' turns out to be vulnerable.
		Evaluating the level of tamper resistance offered by a given product is thus an interesting and important problem, but one which has been neglected by the security research community.
		A variety of tamper resistant packages were tested for ease of penetration and ease of manufacturing, including stannic oxide lines on glass, piezo-electric sheets and a number of wire winding techniques.
	www.cl.cam.ac.uk /~rja14/tamper.html (7594 words)

	Bryce fastener, the leader in custom, tamperproof Keyed-lok® security screws and security keys
		With the onslaught of imported tamper-resistant bits, the security of these "tamper proof screws" is declining rapidly.
		They are tamper-resistant screws, not tamper-proof screws (see tamper proof myth).
		Customers receive high security tamper proof screws that protects their property - and their investments.
	www.keyedlok.com (300 words)

	Tamper-resistant receptacles: the rules have changed.
		Although the exception, added in the 1996 code cycle, states that "a receptacle cover shall be permitted to be used in place of a tamper-resistant receptacle provided such cover, by its construction, limits improper access to the energized parts of the receptacle," a receptacle cover is not UL-listed for safety/tamper resistance.
		Products such as plastic plug-in inserts and wall plates with contact shutters also are available for tamper resistance; however, none of these products is UL-listed for safety/tamper resistance.
		Prior to this, there were no specific tests for tamper resistance; all that was available was the UL 498 requirements for a standard receptacle.
	ecmweb.com /mag/electric_tamperresistant_receptacles_rules/index.html (934 words)

	tamper - OneLook Dictionary Search
		Tamper : Duhaime's Canadian law dictionary [home, info]
		Phrases that include tamper: tamper with, software anti tamper, star tamper resistant screw, star tamper resistant screws, tamper proof, more...
		Words similar to tamper: meddle, monkey, tamp, tampered, tamperer, tampering, tamperproof, more...
	www.onelook.com /?loc=lemma3&w=tamper (310 words)

	Ultrak UL-BPHKIT Bullet-resistant 3mm Armored Plate Housing
		The BPHKIT camera housing is designed for maximum bullet and tamper resistance.
		Each housing is constructed of heavy-duty extruded aluminum with a 3 mm stainless steel armored plate on each side to provide maximum protection from side impact.
		These enclosures are suitable for parking structures, police stations, correctional facilities, high-crime areas or wherever a bullet-/tamper-resistant enclosure is required to secure a camera.
	www.cctvproducts.com /ulbphkit.html (155 words)

	PKC (Site not responding. Last check: 2007-10-15)
		Clearly you would be foolish to rely on the tamper resistance.
		Obviously there is no technology that provides complete protection, but I think crypto processors (even without physical tamper resistance) give some extra protection compared to what we would otherwise have.
		That is probably okay; only a small number of people would bother breaking the security just to get free metro rides, with all the risk that would entail.
	www.chiark.greenend.org.uk /pipermail/ukcrypto/2000-September/013474.html (401 words)

	MITI-VEND MV1 Specifications
		Tamper proof construction, designed to shed water to sides and rear away from the unit's face
		Virtually impossible to locate or tamper with from the outside of the case.
		Combined with similar sleeves located on the door panel, positioned to align and mate with case sleeves, and the insertion of a brass hinge pin, the system provides a superior trouble free, high security, door attachment system.
	www.mitico.com /mitivend_ironranger2_.htm (453 words)

	Light Blue Touchpaper » Chip & PIN terminal playing Tetris
		It is important to remember, however, that even perfect tamper resistance only ensures that the terminal will no longer be able to communicate with the bank once opened.
		I was under the impression the the requirement was for tamper eveidence, not tamper resistance.
		The tamper resistance does not leave any evidence externally observable to the user, the one that is potentially being defrauded.
	www.lightbluetouchpaper.org /2006/12/24/chip-pin-terminal-playing-tetris (5502 words)

	Anti-Piracy/Hacker Tools and Guide
		Anti-Hacker, Anti-Piracy Tools and Tamper Resistance Features: The run-time components that you integrate into your software have several optional features (called "tamper resistance" features) that you can enable, which resist attempts to crack it.
		The SoftwareShield System SDK includes a tamper resistance settings that you can individually toggle on or off in each license you create.
		Generic program tracers are detected as well to further resist attempts to crack your programs.
	www.softwareshield.com /products/anti-piracy-hacker.htm (565 words)

	LWN: Laser & DRM (Site not responding. Last check: 2007-10-15)
		In the first case (as long as the manufacturer properly documents applicable regulations and potential safety hazards) modifications that break the law are clearly the responsibility of that owner.
		Many manufacturers attempt to make their hardware tamper resistant, regardless of whether the equipment is intended for sale or rental.
		I mistakenly took "DRM" to be mteaning tamper resistance, which I interpreted as TC (locking down the software, as opposed to content).
	lwn.net /Articles/203067 (4889 words)

	Safeguards Seal's Program (Site not responding. Last check: 2007-10-15)
		Tamper tapes are appealing for many applications due to their ease of use and relative robustness.
		A next generation of adhesive tamper tapes is being developed that combines the best features of commercially available devices with additional state-of-the-art features in tamper indication, tamper- resistance, and counterfeit-resistance.
		The additional features are based on U.S. Department of Energy (DOE) research and development (RandD) activities that were originally associated with preparations for the Strategic Arms Reduction Treaty (START).
	www.sandia.gov /doe-oss/documents/tampertape-seals/tamper.html (132 words)

	Tamper Resistance
		There are six individual tamper resistance settings that you can individually toggle on or off.
		If you choose to use these flags, simply make sure that the very last thing you do before distributing the license is to turn them on, re-compile and test (outside of the IDE on a machine without SoftICE installed).
		Note that using Tamper Resistance options alone is usually not sufficient to do a great job of protecting your applications from crackers.
	www.softwareshield.com /Support/OnlineHelp/Feature_Guide/Tamper_Resistance/Tamper_Resistance.htm (313 words)

	Tamper Evident & Evidence Seals, Evidence, Integrity, Butt Cut Rolls, Sentinel Scientific your source for drug and ... (Site not responding. Last check: 2007-10-15)
		Tamper Evident and Evidence Seals, Evidence, Integrity, Butt Cut Rolls, Sentinel Scientific your source for drug and laboratory testing, evidence collection and transport consumables for law enforcement and medical communities.
		Sentinel Scientific’s evidence, tamper-evident, integrity and box seals provide an additional line of protection and security for specimens, evidence and other materials.
		"Evidence" tamper evident seals; continuous roll with white write on block; 1 3/8" x 108"
	www.sentinelsci.com /products/html/tamper_evident.htm (244 words)

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