- wlug - list.wlug.org.nz

Undoing Data Anonymization Is Trivial
by Lawrence D'Oliveiro 18 Dec '17

18 Dec '17

Yet another demonstration <http://www.theregister.co.uk/2017/12/18/no_hack_needed_anonymisation_beaten…> of the seeming impossibility of publishing “anonymized” sets of personal data that cannot be traced back to specific individuals. The response of the Australian Government to a previous demonstration of such “de-anonymization” techniques was to seek laws to ban them.

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Why Linux HDCP Isn't the End of the World
by Peter Reutemann 17 Dec '17

17 Dec '17

'"There is no reason for the open-source community to worry..." writes Daniel Stone, who heads the graphics team at open-source consultancy Collabora. mfilion quotes Collabora.com: Recently, Sean Paul from Google's ChromeOS team, submitted a patch series to enable HDCP support for the Intel display driver. HDCP is used to encrypt content over HDMI and DisplayPort links, which can only be decoded by trusted devices... However, if you already run your own code on a free device, HDCP is an irrelevance and does not reduce freedom in any way.... HDCP support is implemented almost entirely in the hardware. Rather than adding a mandatory encryption layer for content, the HDCP kernel support is dormant unless userspace explicitly requests an encrypted link. It then attempts to enable encryption in the hardware and informs userspace of the result. So there's the first out: if you don't want to use HDCP, then don't enable it! The kernel doesn't force anything on an unwilling userspace.... HDCP is only downstream facing: it allows your computer to trust that the device it has been plugged into is trusted by the HDCP certification authority, and nothing more. It does not reduce user freedom, or impose any additional limitations on device usage.' -- source: https://linux.slashdot.org/story/17/12/16/0320227 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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Net Neutrality Repeal --- What It Means For NZ
by Rowan Schischka 17 Dec '17

17 Dec '17

<https://list.waikato.ac.nz/pipermail/wlug/2017-December/015504.html> So you are agreeing with me that USA has a problem of poor competition? In NZ if my provider gives me crap access to certain services, I have options, but in many places in the US they do not. Net Neutrality rules did not increase competition in USA, and I do not see how dropping regulations in US will affect NZ's access. Just like Internet censorship from the department of internal affairs is optional, so will any media business arrangement with our ISPs. I can choose one that does it and I can choose one that does not.

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Should Google Be Paying News Sites For Linking To Them?
by Lawrence D'Oliveiro 16 Dec '17

16 Dec '17

News agencies in Europe, particularly, have been claiming for a long while that Google has been unfairly profiting from linking to their articles (and quoting snippets from them). So they want Governments to force Google to pay a “link tax” <https://www.techdirt.com/articles/20171214/16352638814/european-new-agencie…>. The reality of such things is that, regardless of laws to the contrary, the money tends to flow from the ones benefiting to the ones providing the value (cf the “Payola” scandals in the US). Which explains what happened in Spain after it brought in its link-tax law <https://www.techdirt.com/articles/20150725/14510131761/study-spains-google-…>. Maybe the news agencies’ real complaint is that Google is such a massively profitable advertising company.

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Net Neutrality Repeal --- What It Means For NZ
by Rowan Schischka 16 Dec '17

16 Dec '17

>Doesn?t mean we shouldn?t have network neutrality here, though. It just >means the abuses have not been quite as flagrant to date. The article is about ghost problems. In America, with or without net neutrality, providers abuse their market position. Every argument to keep the net neutrality rules comes back to poor competition in telco providers, which previous regulations did not address. The article correctly states that we will not see problems here because of Chrous' position but they incorrectly state we do not have links between media and ISP; Vodafone currently offers package deals https:// www.vodafone.co.nz/pass/ The internet is still working and there is no barrier to stop you or me to start a competing business. If a company like Duco or the rugby union did a deal with an ISP, I would want a deal that gives me uninterrupted live sports streaming, but it wont happen if the government thinks they need to regulate this.

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Net Neutrality Repeal --- What It Means For NZ
by Lawrence D'Oliveiro 15 Dec '17

15 Dec '17

<http://www.nzherald.co.nz/business/news/article.cfm?c_id=3&objectid=11960493>: "Since so many of the services we use online have been developed in America, what is bad for the internet there is bad for us all." But fortunately, Carter added, New Zealand didn't have the market problems that made network neutrality such a pressing issue in the US. Doesn’t mean we shouldn’t have network neutrality here, though. It just means the abuses have not been quite as flagrant to date.

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Avast Launches Open-Source Decompiler For Machine Code
by Peter Reutemann 14 Dec '17

14 Dec '17

'To help with the reverse engineering of malware, Avast has released an open-source version of its machine-code decompiler, RetDec, that has been under development for over seven years. RetDec supports a variety of architectures aside from those used on traditional desktops including ARM, PIC32, PowerPC and MIPS. As Internet of Things devices proliferate throughout our homes and inside private businesses, being able to effectively analyze the code running on all of these new devices becomes a necessity to ensure security. In addition to the open-source version found on GitHub, RetDec is also being provided as a web service. Simply upload a supported executable or machine code and get a reasonably rebuilt version of the source code. It is not possible to retrieve the exact original code of any executable compiled to machine code but obtaining a working or almost working copy of equivalent code can greatly expedite the reverse engineering of software. For any curious developers out there, a REST API is also provided to allow third-party applications to use the decompilation service. A plugin for IDA disassembler is also available for those experienced with decompiling software.' -- source: https://news.slashdot.org/story/17/12/14/006237 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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AT&T Versus Carterfone Revisited
by Lawrence D'Oliveiro 14 Dec '17

14 Dec '17

Or, it takes a certain amount of Government regulation to maintain a free market <https://arstechnica.com/tech-policy/2017/12/carterfone-40-years/>. I like the closing remarks: We do not begrudge the CEOs of these great corporations their legal positions. But they are, as Andrew Carnegie would put it, stewards of the system, not its owners. They are not there to tell us to Go Away. They are there to keep the system running while we discover it, use it, develop it, innovate it, game it, finesse it, and reinvent it to our heart's content. The great enterprise of telecommunications is no better than our right to participate in it as individuals.

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AMD Is Open-Sourcing Their Official Vulkan Linux Driver
by Peter Reutemann 13 Dec '17

13 Dec '17

'While many of you have likely heard of the "RADV" open-source Vulkan driver, it's been a community-written driver up to this point in the absence of AMD's official, cross-platform Vulkan driver being open-source. That's now changed with AMD now open-sourcing their official Vulkan driver. The code drop is imminent and they are encouraging the use of it for quick support of new AMD hardware, access to the Radeon GPU Profiler, easy integration of AMD Vulkan extensions, and enabling third-party extensions. For now at least it does provide better Vulkan performance than RADV but the RADV developers have indicated they plan to continue development of their Mesa-based Vulkan driver.' -- source: https://news.slashdot.org/story/17/12/13/016211 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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1998 attack that messes with sites’ secret crypto keys is back in a big way
by Peter Reutemann 12 Dec '17

12 Dec '17

'A surprisingly big number of top-name websites—Facebook and PayPal among them—recently tested positive for a critical, 19-year-old vulnerability that allowed attackers to decrypt encrypted data and sign communications using the sites' secret encryption key. The vulnerability in the transport layer security protocol for Web encryption was disclosed in 1998 when researcher Daniel Bleichenbacher found it in the TLS predecessor known as secure sockets layer. A flaw in the algorithm that handles RSA encryption keys responded to certain types of errors in a way that divulged potentially sensitive information. With enough specially formed queries, attackers could exploit the weakness in a way that allowed them to decrypt ciphertext even when they didn't have the secret decryption key. SSL architects responded by designing workarounds that suppressed the error messages rather than removing or rewriting the faulty RSA algorithm. Researchers call the class of crypto vulnerability an Oracle because it provides only "yes" or "no" answers that, over time, can reveal detailed information about the contents of encrypted data. The information allows hackers to carry out what's known as an "adaptive chosen-ciphertext attack."' -- source: https://arstechnica.com/information-technology/2017/12/a-worrying-number-of… 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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