Nicolas Thumann

Cybersecurity, Computer Science & Media ♥

[Nicolas Thumann @n_thumann]

Check out my #AsicBoost Block Explorer at https://t.co/z4xKWGfvTy 🚀

[Nicolas Thumann @n_thumann]

@minerswins Grau bedeuten, dass entweder Open Street Map keine Adresse in Wabe dieser bekannt ist (passiert vor allem in ländlichen Gebieten) oder, dass Easybell dort tatsächlich kein VDSL anbietet (unwahrscheinlich).
Frag sonst mal die Easybell API direkt (unten auf https://t.co/jpYgjh61ri)

[Nicolas Thumann @n_thumann]

View my verified achievement from @ripencc. https://t.co/RgjjpSR9Pu

[Nicolas Thumann @n_thumann]

@Moin_EWE @nico22de Zwei Leute vom Support sagen da was anderes: Die meinten heute morgen noch, dass sich die Implementierung von IPv6 in der Realisierung befinde, man aber zum jetzigen Zeitpunkt noch keine Zeitpläne oder technische Details veröffentlichen könne. Was denn nun? 👀🤔

[heise online @heiseonline]

Die COVID-19-App der Telekom soll Patienten einen schnellen Zugang zum Ergebnis ihrer Coronatests verschaffen. (pollicip)
https://t.co/EZkVKdGkuR

[Nicolas Thumann @n_thumann]

Die COVID-19 App der @deutschetelekom und BS Software Development ist eine sehr gute Idee! Die aktuelle Umsetzung, Testergebnisse direkt aufs Handy geschickt zu bekommen, aber sicherheitstechnisch eher holprig, was das Ausspähen ermöglicht.
https://t.co/uO1Ybu8lE4

[Nicolas Thumann @n_thumann]

Habe gerade mein Projekt IPTV-ReStream freigegeben. Es ermöglicht das Empfangen von source specific Multicast RTP-Streams (z.B. Telekom MagentaTV) durch weiterleiten über HTTP an entfernten Clients 👏🏻
https://t.co/AcbSN4qtgc

[Nicolas Thumann @n_thumann]

If you’re not using the latest Parallels Desktop version to work with VMs, you probably noticed that more recent Linux Kernel versions are not compatible with your older version. I’ve found a pretty easy workaround: https://t.co/FpYkuYHEvY 😊

[Nicolas Thumann @n_thumann]

@rstelzle @UKParliament File ID seems to be wrong, try https://t.co/ovkh4Qb6T9 :)

[VideoLAN @videolan]

About the "security issue" on #VLC : VLC is not vulnerable.
tl;dr: the issue is in a 3rd party library, called libebml, which was fixed more than 16 months ago.
VLC since version 3.0.3 has the correct version shipped, and @MITREcorp did not even check their claim.

Thread:

[Nicolas Thumann @n_thumann]

I just released my security advisory about the vulnerabilities (CVE-2019-12581 & CVE-2019-12583) in Zyxel devices, I‘ve found: https://t.co/UpDATWF7TQ ✌🏻
The “Free Time“ feature basically allows anyone to access your network 😬
Read Zyxels statement: https://t.co/qT1iHLta8B

[Nicolas Thumann @n_thumann]

Great talk on Bitcoin hardware wallet security by @nedos @StackSmashing @cryptotx on #35c3 👏🏻
https://t.co/LeyfCSBq8M & https://t.co/JyWuIlADO8
Any eta of your #F00dbabe video @LiveOverflow?

[Nicolas Thumann @n_thumann]

Great article on the current circumstances of #AsicBoost by @CarpeNoctom 🙌🏻
https://t.co/NDkVMgvbEc

[Nicolas Thumann @n_thumann]

After 1000 version-rolled block in the Bitcoin chain, I am happy to announce that there is a Bitcoin Cash site of my AsicBoost Block Explorer available now at https://t.co/nGulFOyXvQ!

[Nicolas Thumann @n_thumann]

After exactly two years it’s time to say farewell to my @torproject relay 👋🏻 In that time it pushed ~200TB and up to 845GB/day. There was a 0.13% probability that you were using it as an exit or 0.025% as a guard/middle.

[Nicolas Thumann @n_thumann]

@Chris21124 @WhalePanda @AntPoolofficial Partly correct: Overt AsicBoost is completely unaffected by SegWit while covert AsicBoost incentivize miners to refuse SegWit txs or mine small blocks.

[Nicolas Thumann @n_thumann]

Congrats to @btccom_official for mining their first #AsicBoost block 🙌🏻
https://t.co/O9vI94pqyk

[Nicolas Thumann @n_thumann]

@StevieJarosz No quite: One or more SegWit txs requires a miner to include a witness commitment in the cb tx. This makes tx shuffeling more expensive, as the merkle tree has to be recalculated as well.
Fun fact: Even Bitmain uses SegWit in its (maybe AsicBoosted) blocks

[Nicolas Thumann @n_thumann]

@bradmillscan @Excellion Covert AB requires to generate many merkle roots. One can do that by changing the extranonce (located in the Coinbase tx) or shuffling merkle root branches/tx. The more levels a merkel root has, the higher the difficulty of these methods. So less txs = less hashing required

[Nicolas Thumann @n_thumann]

@BeautyBubble Just a coincidence as I was searching for AsicBoost tweets at that moment 😊