- wlug - University of Waikato Mail Lists

Google Pushes Kotlin Over Java for Android Development
by Peter Reutemann 18 May '19

18 May '19

'Google "officially declared Kotlin the go-to language for Android development last week at its Google I/O developer conference," reports Mike Melanson's "This Week in Programming" column, "and the company is backing that up with a couple of initiatives around making it easier (and free) to learn the language now used by a majority of Android developers." Google teamed up with Udacity to offer Developing Android Apps with Kotlin , a free, self-paced online course on how to build Android apps with Jetpack and Kotlin, meant for people who have programming experience and are comfortable with Kotlin basics. Google also announced "Kotlin/Everywhere, a series of community-driven events focussing on the potential of Kotlin on all platforms," which it is putting on in conjunction with JetBrains. Of course, this leaves the question that has been asked many times before -- why Kotlin? -- and IT consultant Kristen Carter offers a take on how Android app development became Kotlin-first. Carter offers some business angles, such as the 2010 lawsuit against Google by Oracle, which predates Kotlin by just a year, and she speculates may have been the impetus behind the language's development as "Google has always wanted to get away from the [Java] ecosystem." At the same time, Carter offers some language-specific reasoning too, such as the comparably succinct nature of Kotlin, the absence of Java's NullPointerExceptions, and the ease with which Java developers could transition to Kotlin. Carter ends her piece by posing the possibility that Oracle "knows the significance of Java in android app development" and could "ship Java with a few upgrades in its next version to take on Kotlin."' -- source: https://developers.slashdot.org/story/19/05/17/2355248 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 John the Ripper Cracks Passwords On FPGAs
by Peter Reutemann 18 May '19

18 May '19

'Long-time Slashdot reader solardiz has long bring an advocate for bringing security to open environments. Wednesday he contacted Slashdot to share this update about a piece of software he's authored called John the Ripper: John the Ripper is the oldest still evolving password cracker program (and Open Source project), first released in 1996. John the Ripper 1.9.0-jumbo-1, which has just been announced with a lengthy list of changes, is the first release to include FPGA support (in addition to CPU, GPU, and Xeon Phi). This is a long-awaited (or long-delayed) major release, encompassing 4.5 years of development and 6000+ commits by 80+ contributors. From the announcement: "Added FPGA support for 7 hash types for ZTEX 1.15y boards [...] we support: bcrypt, descrypt (including its bigcrypt extension), sha512crypt & Drupal7, sha256crypt, md5crypt (including its Apache apr1 and AIX smd5 variations) & phpass. As far as we're aware, several of these are implemented on FPGA for the very first time. For bcrypt, our ~119k c/s at cost 5 in ~27W greatly outperforms latest high-end GPUs per board, per dollar, and per Watt. [...] We also support multi-board clusters (tested [...] for up to 16 boards, thus 64 FPGAs, [...] on a Raspberry Pi 2 host)' -- source: https://it.slashdot.org/story/19/05/18/1841245 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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Severe Linux Kernel Flaw Found In RDS
by Peter Reutemann 18 May '19

18 May '19

'Linux systems running kernels prior to 5.0.8 require patching after news emerged of a high-severity flaw that could be remotely exploited. According to the NIST advisory, CVE-2019-1181 is a race condition affecting the kernel's rds_tcp_kill_sock in net/rds/tcp.c "leading to a use-after-free, related to net namespace cleanup." The RDS bit refers to systems running the Reliable Datagram Sockets (RDS) for the TCP module, which means only systems that run applications using this are affected. The attention-grabbing part is that this opens unpatched systems to remote compromise and denial of service without the need for system privileges or user interaction. On the other hand, the attack complexity is described as 'high', and any such attack would need to be launched from the local network.' -- source: https://linux.slashdot.org/story/19/05/18/2122204 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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SoftBank and the 300-year plan
by Ian Young 16 May '19

16 May '19

Perhaps some may not have seen these recent articles about SoftBank which owns ARM. The most detailed I have come across so far. The SoftBank CEO has a 300-year plan it seems. Even the 2035 plan is spectacular. "By 2035 there will be a trillion connected devices, he [Son] said – a vast Internet of Things of autonomous vehicles, smart robots and artificially intelligent sensors, and Arm would be the company behind all these devices." https://www.wired.co.uk/article/softbank-vision-fund https://www.fastcompany.com/90285552/the-most-powerful-person-in-silicon-va…

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Techweek
by Lawrence D'Oliveiro 16 May '19

16 May '19

For those wanting to know what events are on for Techweek next week, start here <https://www.cultivateit.nz/page/techweek-19-waikato/>. Yes, our own little WLUG meeting on Monday is part of the fun. ;)

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Wi-Fi Transmission Overhead?
by Lawrence D'Oliveiro 15 May '19

15 May '19

I’m currently copying a few gigabytes of files from my main workstation onto my laptop via wi-fi. Looking at dstat, on the workstation, it is reading about 4MB/s from the disk, but the network data transmission rate is a bit over twice that, more like 9MB/s. At the laptop end, it is receiving about 4MB/s over the network, which more closely matches the data being read from disk on the transmit side, but not the transmission rate. Has anybody else seen something similar?

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SSH Password-Guessing Attacks
by Lawrence D'Oliveiro 15 May '19

15 May '19

I suppose you know that if you put a machine on the Internet with an SSH server listening on port 22, you are going to get bombarded with password-guessing login attempts. Previously, I thought that moving the SSH server to a nonstandard port was sufficient to block these. But now I am seeing these attacks happening on my Rimu VPS anyway. Should I bother to change the port again?

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Why Linux On Desktop 'Failed': A Discussion With Mark Shuttleworth
by Peter Reutemann 15 May '19

15 May '19

'Mark Shuttleworth, founder and CEO of Canonical, summed it in a few words: "I think the bigger challenge has been that we haven't invented anything in the Linux that was like deeply, powerfully ahead of its time." He also said that "if in the free software community we only allow ourselves to talk about things that look like something that already exists, then we're sort of defining ourselves as a series of forks and fragmentations." He added that it seems the desktop Linux people want to be angry at something. We wanted to do amazing things with Unity but the community won't let us do it, so here we are. He also commended Google folks for what they have built for Chrome OS.' -- source: https://linux.slashdot.org/story/19/05/15/1523252 Hmm... Multiple virtual desktops, natively supported Windows, finally available with Windows 10 (though terrible to use!). Even fvwm2 in 1998 or 1999 was better than Windows' current implementation... Talking about something amazing... 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 Recalls Its Bluetooth Titan Security Keys Because of a Security Bug
by Peter Reutemann 15 May '19

15 May '19

'Google today disclosed a security bug in its Bluetooth Titan Security Key that could allow an attacker in close physical proximity to circumvent the security the key is supposed to provide. From a report: The company says that the bug is due to a "misconfiguration in the Titan Security Keys' Bluetooth pairing protocols" and that even the faulty keys still protect against phishing attacks. Still, the company is providing a free replacement key to all existing users. The bug affects all Titan Bluetooth keys, which sell for $50 in a package that also includes a standard USB/NFC key, that have a "T1" or "T2" on the back.' -- source: https://it.slashdot.org/story/19/05/15/1728202 Rather than "Titan", they should have called it "Achilles"... ;-) 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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So Long Dual-Booting Windows on a Chromebook: Project Campfire is deprecated
by Peter Reutemann 15 May '19

15 May '19

'Project Campfire turned up in the Chromium world this past August. The intent was to let a Chromebook boot not just into Chrome OS but directly into another operating system such as Linux or Windows. I thought the latter was a positive outcome since it would allow Chromebooks to natively run Windows desktop apps on a Chromebook, and add value to devices. Unfortunately, the project is shutting down. Spotted in code, there are comments and code removals that make it clear Project Campfire is being deprecated.' -- source: https://linux.slashdot.org/story/19/05/15/1752208 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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