- wlug - list.wlug.org.nz

Insurance Companies Recommending Computer Gear?
by Lawrence D'Oliveiro 07 Feb '18

07 Feb '18

A couple of big insurance outfits have made deals with Apple and Cisco to charge lower cybersecurity premiums to customers buying their gear <http://www.theregister.co.uk/2018/02/06/cisco_apple_allianz_aon_cyber_insur…>. I’m in favour (up to a point) of charging according to assessed risk, but basing it on specific brand names leaves them open to accusations of conflict of interest. Better it be done according to adherence to published nonproprietary standards, such as PCI-DSS, for example.

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New IoT botnet offers DDoSes of once-unimaginable sizes for $20
by Peter Reutemann 02 Feb '18

02 Feb '18

'Organizers of a new botnet made up of infected home and small office routers are brazenly selling denial-of-service attacks of once unimaginable volumes for just $20 per target. Calling itself Los Calvos de San Calvicie, the group is advertising several services on this site. Among the services are distributed denial-of-service attacks of 290 to 300 gigabits per second for $20 each. While a third the size of some of the biggest recorded attacks, 290Gbps is still enough to bring most sites down unless they seek DDoS mitigation services, which in many cases cost considerable amounts of money. Just five years ago, 300Gbps was considered enough volume to shut down the Internet's core infrastructure. Los Calvos de San Calvicie members have been spotted assembling a botnet in recent days that very possibly has the firepower required to deliver the potent attacks promised. According to Pascal Geenens, a researcher at security firm Radware, the group is building the botnet by exploiting two vulnerabilities: one in RealTek routers running out-of-date firmware and the other in the Huawei HG532 router, where a patch released in December has yet to be installed by many users. Both vulnerabilities are also exploited by a different Internet-of-things botnet known as Satori.' -- source: https://arstechnica.com/information-technology/2018/02/for-sale-ddoses-guar… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Microsoft Releases Skype As a Snap For Linux
by Peter Reutemann 01 Feb '18

01 Feb '18

'While Microsoft has long been viewed as an enemy of the Linux community -- and it still is by some -- the company has actually transformed into an open source champion. One of Microsoft's biggest Linux contributions, however, is Skype -- the wildly popular communication software. By offering that program to desktop Linux users, Microsoft enables them to easily communicate with friends and family that aren't on Linux, thanks to its cross-platform support. Today, Microsoft further embraces Linux by releasing Skype as a Snap. This comes after two other very popular apps became available in Snap form -- Spotify and Slack. "Skype is used by millions of users globally to make free video and voice calls, send files, video and instant messages and to share both special occasions and everyday moments with the people who matter most. Skype has turned to snaps to ensure its users on Linux, are automatically delivered to its latest versionupon release. And with snaps' roll-back feature, whereby applications can revert back to the previous working version in the event of a bug, Skype's developers can ensure a seamless user experience," says Canonical.' -- source: https://linux.slashdot.org/story/18/02/01/1644250 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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LibreOffice 6.0 Released: Features Superior Microsoft Office Interoperability, OpenPGP Support
by Peter Reutemann 31 Jan '18

31 Jan '18

'LibreOffice 6.0 comes two and a half years after the LibreOffice 5.x series, and it's the biggest release of the open-source and cross-platform office suite so far. It introduces a revamped design with new table styles, improved Notebookbars, new gradients, new Elementary icons, menu and toolbar improvements, and updated motif/splash screen. LibreOffice 6.0 offers superior interoperability with Microsoft Office documents and compatibility with the EPUB3 format by allowing users to export ODT files to EPUB3. It also lets you import your AbiWord, Microsoft Publisher, PageMaker, and QuarkXPress documents and templates thanks to the implementation of a set of new open-source libraries contributed by the Document Liberation project. Many great improvements were made to the OOXML and ODF filters, as well as in the EMF+, Adobe Freehand, Microsoft Visio, Adobe Pagemaker, FictionBook, Apple Keynote, Pages, and Numbers, as well as Quattro Pro import functionality, and to the XHTML export. LibreOffice Online received numerous improvements as well in this major release of LibreOffice.' -- source: https://news.slashdot.org/story/18/01/31/1422245 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Samsung Surpasses Intel To Become the World's Largest Chipmaker
by Peter Reutemann 31 Jan '18

31 Jan '18

'Samsung Electronics just knocked Intel off its perch as the world's biggest chipmaker by revenue, a spot the U.S. company has held since 1992. From a report: On Tuesday, Samsung reported 2017 chip sales of $69 billion, blowing past Intel's $63 billion from last year. The switch underlines how Samsung has transformed itself from a maker of cheap televisions into a pervasive supplier of key components in smartphones and other modern computing devices. It's also a testament to the growth of memory chips, Samsung's main market. Intel, whose processors are the heart of about 90 percent of the world's computers, didn't have a bad year. Sales grew 6 percent. Success in computers is no longer enough, though. Memory chips, a market Intel only recently got back into, are now crucial parts of smartphones, which easily outsell PCs these days. Memory chips are also finding their way into a range of new devices such as cars. One of the ironies of Samsungâ(TM)s success in memory is that itâ(TM)s a business Intel created in the 1960s.' -- source: https://slashdot.org/story/18/01/31/1516212 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Google Chrome To Feature Built-In Image Lazy Loading
by Peter Reutemann 31 Jan '18

31 Jan '18

'Future versions of Google Chrome will feature built-in support for lazy loading, a mechanism to defer the loading of images and iframes if they are not visible on the user's screen at load time. This system will first ship with Chrome for Android and Google doesn't rule out adding it to desktop versions if tests go as planned. The feature is called Blink LazyLoad, and as the name hints, it will implement the principle of "lazy loading" inside Chrome itself. Google engineers reported page load speed improvements varying from 18% to 35%, depending on the underlying network. Other browser makers have been notified of the Chrome team's plan, but none have provided input if they plan to implement a similar feature. Compared to most JS-based lazy loading scripts that only target images, Google implementation will also target iframes.' -- source: https://tech.slashdot.org/story/18/01/31/180234 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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MPEG Founder Says the MPEG Business Model Is Broken
by Peter Reutemann 30 Jan '18

30 Jan '18

'Leonardo Chiariglione, the founder and chairman of MPEG, argues on his blog that the current MPEG business model is broken. He writes, "Thanks to [MPEG's] 'business model' that can be simply described as: produce standards having the best performance as a goal, irrespective of the IPR involved. Because MPEG standards are the best in the market and have an international standard status, manufacturers/service providers get a global market of digital media products, services and applications, and end users can seamless communicate with billions of people and access millions of services. Patent holders who allow use of their patents get hefty royalties with which they can develop new technologies for the next generation of MPEG standards. A virtuous cycle everybody benefits from." But, he argues, the MPEG model is now in crisis because the forthcoming AV1 video format from the Alliance for Open Media means that "everybody realizes that the old MPEG business model is broke, all the investments (collectively hundreds of millions USD) made by the industry for the new video codec [HEVC] will go up in smoke and AOM's royalty free model will spread to other business segments as well." Chiariglione goes on to explain what can be done: "The first action is to introduce what I call 'fractional options.' ISO envisages two forms of licensing: Option 1, i.e. royalty free and Option 2, i.e. FRAND, which is taken to mean 'with undetermined license.' We could introduce fractional options in the sense that a proposer could indicate that the technology be assigned to a specifically identified profile with an 'industry license' (defined outside MPEG) that does not contain monetary values. For instance, one such license could be 'no charge' (i.e. Option 1), another could be targeted to the OTT market etc." "The second action, not meant to be alternative to the first, is to streamline the MPEG standard development process. Within this a first goal is to develop coding tools with 'clear ownership,' unlike today's tools which are often the result of contributions with possibly very different weights. A second goal is not to define profiles in MPEG. A third goal could be to embed in the standard the capability to switch coding tools on and off."' -- source: https://news.slashdot.org/story/18/01/30/0419222 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Is This The Hawaii Civil Defence Missile Alert UI?
by Lawrence D'Oliveiro 30 Jan '18

30 Jan '18

Remember the alert about the incoming missile in Hawaii that turned out to be nonsense? This <https://arstechnica.com/information-technology/2018/01/the-interface-to-sen…> is apparently what the user interface looks like for the system that sends out both test and genuine alerts. It looks like a web page with a random assortment of links. Just off the top of my head, not claiming to be a UI expert here, but I would have a big title across the top of the screen saying either “TEST MODE” or “LIVE MODE” (the latter red, and blinking). Then have a single set of options below, appropriate to the active mode. Even go one better, and do what Japanese railway locomotive drivers do as they see signs at the side of the track: say out loud what the signs mean, before taking appropriate action.

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The SCO Vs IBM Zombie Shambles On
by Peter Reutemann 29 Jan '18

29 Jan '18

'At the end of last October, the 10th Circuit issued an opinion overturning the lower court's summary judgement in favor of IBM on one of SCO's claims, sending it back to the lower court for trial. Shortly thereafter, IBM filed for a re-hearing en banc. On January 2nd, the 10th circuit essentially denied IBM's request, issuing a slightly revised opinion with the same conclusions and result. The charge being reheard accuses IBM of "stealing and improperly using [SCO's] source code to strengthen its own operating system, thereby committing the tort of unfair competition by means of misappropriation" -- though that charged is based on an implied duty that SCO says IBM incurred by entering into a development relationship with SCO. "SCO believes that IBM merely pretended to go along with the arrangement in order to gain access to Santa Cruz's coveted source code." The court's 46-page document adds that "We are now almost fifteen years into this litigation."' -- source: https://yro.slashdot.org/story/18/01/29/0213203 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Intel Told Chinese Firms of Meltdown Flaws Before the US Government
by Peter Reutemann 29 Jan '18

29 Jan '18

'According to The Wall Street Journal, Intel initially told a handful of customers about the Meltdown and Spectre vulnerabilities, including Chinese tech companies like Alibaba and Lenovo, before the U.S. government. As a result, the Chinese government could have theoretically exploited the holes to intercept data before patches were available. Engadget reports: An Intel spokesman wouldn't detail who the company had informed, but said that the company couldn't notify everyone (including U.S. officials) in time because Meltdown and Spectre had been revealed early. Lenovo said the information was protected by a non-disclosure agreement. Alibaba has suggested that any accusations of sharing info with the Chinese government was "speculative and baseless," but this doesn't rule out officials intercepting details without Alibaba's knowledge. There's no immediate evidence to suggest that China has taken advantage of the flaws, but that's not the point -- it's that the U.S. government could have helped coordinate disclosures to ensure that enough companies had fixes in place. ' -- source: https://it.slashdot.org/story/18/01/29/0520222 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Are the BSDs Dying? Some Security Researchers Think So
by Peter Reutemann 26 Jan '18

26 Jan '18

'The BSDs have lost the battle for mindshare to Linux, and that may well bode ill for the future sustainability of the BSDs as viable, secure operating systems, writes CSO's JM Porup. The reason why is a familiar refrain: more eyeballs mean more secure code. Porup cites the work of Ilja von Sprundel, director of penetration testing at IOActive, who, noting the "small number of reported BSD kernel vulnerabilities compared to Linux," dug into BSD source code. His search 'easily' turned up about 115 kernel bugs. Porup looks at the relative security of OpenBSD, FreeBSD and NetBSD, the effect on Mac OS, and why, despite FreeBSD's relative popularity, OpenBSD may be the most likely to survive.' -- source: https://bsd.slashdot.org/story/18/01/26/1636229 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Ubuntu 18.04 LTS Will Default To The X.Org Stack, Not Wayland
by Peter Reutemann 26 Jan '18

26 Jan '18

'Five years after their original goal to ship Ubuntu with Wayland, Ubuntu 17.10 transitioned to using the Wayland display system by default as part of their transition to GNOME Shell as the default desktop. But with the upcoming Ubuntu 18.04 LTS release, Canonical has decided to transition back to the X.Org Server. Their reasoning for moving to an X.Org Server by default is better support for screen sharing, remote desktop, and better recovery from crashes. But for those interested the Wayland session will still be available as a log-in option.' -- source: https://news.slashdot.org/story/18/01/26/1437212 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Burger King Explains Net Neutrality
by Lawrence D'Oliveiro 26 Jan '18

26 Jan '18

Burger King uses “Whopper Neutrality” to illustrate why service providers shouldn’t play favourites <https://www.theregister.co.uk/2018/01/24/burger_king_net_neutrality/>.

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Senator Asks FBI Director To Justify His 'Ill-Informed' Policy Proposal For Encryption
by Peter Reutemann 26 Jan '18

26 Jan '18

'In a speech earlier this month, FBI Director Christopher Wray said the inability of law enforcement authorities to access data from electronic devices due to powerful encryption is an "urgent public safety issue." He proposed that Silicon Valley companies should add a backdoor to their encryption so that they could both "provide data security and permit lawful access with a court order." One person is not amused by Wray's proposal. Senator Ron Wyden criticized Wray on Thursday for not consulting him before going public with the proposal for encryption. Wyden said today, via Gizmodo: Your stated position parrots the same debunked arguments espoused by your predecessors, all of whom ignored the widespread and vocal consensus of cryptographers. For years, these experts have repeatedly stated that what you are asking for is not, in fact, possible. Building secure software is extremely difficult, and vulnerabilities are often introduced inadvertently in the design process. Eliminating these vulnerabilities is a mammoth task, and experts are unified in their opinion that introducing deliberate vulnerabilities would likely create catastrophic unintended consequences that could debilitate software functionality and security entirely. [...] I would like to learn more about how you arrived at and justify this ill-informed policy proposal. Please provide me with a list of the cryptographers with whom you've personally discussed this topic since our July 2017 meeting and specifically identify those experts who advised you that companies can feasibly design government access features into their products without weakening cybersecurity. Please provide this information by February 23, 2018.' -- source: https://yro.slashdot.org/story/18/01/25/161245 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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New Unit Of Time: The “Flick”
by Lawrence D'Oliveiro 26 Jan '18

26 Jan '18

Oculus is proposing a new unit for measuring time for audio/video/VR purposes: it is 1/705,600,000 of a second. This denominator was chosen to have sufficient integer factors to allow it to exactly represent various common frame/sample rates as whole numbers of flicks (which cannot be done with the usual SI divisions). And also, from the looks of it, possible future higher multiples of those rates. <https://arstechnica.com/gaming/2018/01/oculus-creates-a-new-open-source-uni…>

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Chrome 64 Released With Stronger Popup Blocker, Spectre Mitigations
by Peter Reutemann 25 Jan '18

25 Jan '18

'Google on Thursday pushed an update to its marquee Web browser Chrome, now at v64, which offers a handful of new features including an improved ad blocker. From a report: Most of the new features included with Chrome 64 are meant to improve the browser's support for the ever-changing web standards that drive the modern Internet. For example, Chrome 64 is choke full of support for new browser APIs, new CSS properties, new JavaScript (ECMAScript) features, and changes to Chrome's V8 JavaScript engine. [...] Other big changes that shipped with Chrome 64 are on the browser's security side. For starters, Chrome 64 includes mitigations against the web-exploitable Spectre flaw. Further, Chrome 64 also comes with a bolstered popup blocker that can now block tab-under behavior, being much more efficient at blocking malvertising redirects.' -- source: https://tech.slashdot.org/story/18/01/25/1717226 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Dell and HP Advise All Their Customers To Not Install Spectre BIOS Updates
by Peter Reutemann 25 Jan '18

25 Jan '18

'The Spectre and Meltdown mess continues with Dell now recommending their customers to not install the BIOS updates that are supposed to resolve the Spectre (Variant 2) vulnerabilities. These updates have been causing numerous problems for users including performance issues, boot issues, reboot issues, and general system stability. Due to this, Dell EMC has updated its knowledgebase article with a statement advising customers to not install the BIOS update and to potentially rollback to the previous BIOS if their computers are exhibiting "unpredictable system behavior". ZDNet reports that HP too has issued a similar advisory. The computer manufacturer pulled its softpaqs BIOS updates with Intel's patches from its website, and said it would be releasing a BIOS update with a previous version of Intel's microcode on Thursday.' -- source: https://tech.slashdot.org/story/18/01/24/1312241 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The Death Of Moore’s Law
by Lawrence D'Oliveiro 24 Jan '18

24 Jan '18

From <http://www.theregister.co.uk/2018/01/24/death_notice_for_moores_law/>: The computer science behind microprocessor design has therefore found itself making a rapid U-turn as it learns that its optimisation techniques can be weaponised. ... Hammered by the finance of physics and the weaponisation of optimisation, Moore’s Law has hit the wall, bounced off - and reversed direction. We’re driving backwards now: all things IT will become slower, harder and more expensive. Actually economics probably had more to do with it than physics, as PC sales have been slowing over the past decade.

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City of Barcelona Dumps Windows For Linux and Open Source Software
by Peter Reutemann 24 Jan '18

24 Jan '18

'The City of Barcelona is migrating its computer systems away from the Windows platform, reports the Spanish newspaper El País. The City's strategy is first to replace all user applications with open-source alternatives, until the underlying Windows operating system is the only proprietary software remaining. In a final step, the operating system will be replaced with Linux... According to Francesca Bria, the Commissioner of Technology and Digital Innovation at the City Council, the transition will be completed before the current administration's mandate ends in spring 2019. For starters, the Outlook mail client and Exchange Server will be replaced with Open-Xchange. In a similar fashion, Internet Explorer and Office will be replaced with Firefox and LibreOffice, respectively. The Linux distribution eventually used will probably be Ubuntu, since the City of Barcelona is already running 1,000 Ubuntu-based desktops as part of a pilot... Barcelona is the first municipality to have joined the European campaign 'Public Money, Public Code'. This campaign is an initiative of the Free Software Foundation Europe (FSFE) and revolves around an open letter advocating that publicly funded software should be free. Currently, this call to public agencies is supported by more than 100 organisations and almost 15,000 individuals. With the new open-source strategy, Barcelona's City Council aims to avoid spending large amounts of money on licence-based software and to reduce its dependence on proprietary suppliers through contracts that in some cases have been closed for decades.' -- source: https://linux.slashdot.org/story/18/01/15/0415219 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Firefox 58 Gets Graphics Speed Boost, Web App Abilities
by Peter Reutemann 23 Jan '18

23 Jan '18

'Mozilla released on Tuesday a new version of its Firefox Quantum browser, boosting its graphics speed and improving a couple of new technologies designed to make the web more powerful. From a report: The browser, version 58, is the first major update since Mozilla's recovery plan hit full stride in November with the debut of Firefox Quantum. Speed is of the essence in Mozilla's recovery plan, and Firefox 58 does better than its predecessor in some graphics tasks by splitting work better across the multiple processor cores that computer chips have these days. The result should be scrolling that's smooth, uninterrupted by the stuttering that in computing circles goes by the disparaging term "jank." [...] Firefox 58 helps with two new web technologies. One, called WebAssembly, provides for dramatically faster web apps. Firefox 58 can get WebAssembly software running faster so you don't have to twiddle your thumbs waiting as long after clicking a link. Another is progressive web apps (PWAs), an initiative that came out of Google to help make the web a better match for the apps we all drop on our phones.' -- source: https://tech.slashdot.org/story/18/01/23/150206 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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New Malware Hijacks Cryptocurrency Mining
by Lawrence D'Oliveiro 23 Jan '18

23 Jan '18

One parasite feeding off another, or “Human Technology Recapitulates Biology, Volume 323”. <https://www.schneier.com/blog/archives/2018/01/new_malware_hij.html>

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Fake Ads Redirecting To Malicious Software Installers
by Lawrence D'Oliveiro 23 Jan '18

23 Jan '18

Seems a consortium of fake ad companies has been built up, cultivating relationships with legitimate ad platforms, and then carefully inserting forced redirects in a proportion of the ads they serve, to trick unwitting viewers into installing malware on their machines. Various checks are first applied, to try to ensure that the machines being redirected don’t happen to be run by security researchers, for example. Each member of the consortium is activated for serving this malware in turn; then when it is exposed, it is abandoned and the operators move on to the next one. <https://arstechnica.com/information-technology/2018/01/malvertising-factory…>

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Linux 4.15 Becomes Slowest Release Since 2011
by Peter Reutemann 23 Jan '18

23 Jan '18

'Linus Torvalds has decided that Linux 4.15 needs a ninth release candidate, making it the first kernel release to need that much work since 2011. Torvalds flagged up the possibility of an extra release candidate last week, with the caveat that "it obviously requires this upcoming week to not come with any huge surprises" after "all the Meltdown and Spectre hoopla" made his job rather more complicated in recent weeks. Fast-forward another week and Torvalds has announced "I really really wanted to just release 4.15 today, but things haven't calmed down enough for me to feel comfy about it."' -- source: https://tech.slashdot.org/story/18/01/22/2035228 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Ex-NSA Hacker Runs Christmas Lights With Raspberry πs And Dodgy NZ-Made Radio Kit
by Lawrence D'Oliveiro 22 Jan '18

22 Jan '18

<http://www.theregister.co.uk/2018/01/22/rob_joyce_hacking/>: Joyce uses a couple of Raspberry Pis to control the light show and a slightly dodgy FM transmitter to broadcast the soundtrack to visiting folks. The transmitter, bought as a kit from New Zealand, has the capability to broadcast illegally on FM frequencies, so is sold without the power supply attached to get around regulations, but Joyce said he keeps it low power and within FCC regulations because "I'm very legal."

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Has the Decades-Old Floating Point Error Problem Been Solved?
by Peter Reutemann 22 Jan '18

22 Jan '18

'Wednesday a company called Bounded Floating Point announced a "breakthrough patent in processor design, which allows representation of real numbers accurate to the last digit for the first time in computer history. This bounded floating point system is a game changer for the computing industry, particularly for computationally intensive functions such as weather prediction, GPS, and autonomous vehicles," said the inventor, Alan Jorgensen, PhD. "By using this system, it is possible to guarantee that the display of floating point values is accurate to plus or minus one in the last digit..." The innovative bounded floating point system computes two limits (or bounds) that contain the represented real number. These bounds are carried through successive calculations. When the calculated result is no longer sufficiently accurate the result is so marked, as are all further calculations made using that value. It is fail-safe and performs in real time. Jorgensen is described as a cyber bounty hunter and part time instructor at the University of Nevada, Las Vegas teaching computer science to non-computer science students. In November he received US Patent number 9,817,662 -- "Apparatus for calculating and retaining a bound on error during floating point operations and methods thereof." But in a followup, HPCwire reports: After this article was published, a number of readers raised concerns about the originality of Jorgensen's techniques, noting the existence of prior art going back years. Specifically, there is precedent in John Gustafson's work on unums and interval arithmetic both at Sun and in his 2015 book, The End of Error, which was published 19 months before Jorgensen's patent application was filed. We regret the omission of this information from the original article.' -- source: https://science.slashdot.org/story/18/01/21/0157230 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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