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trustingtrust commented on Operation Triangulation: What you get when attack iPhones of researchers   securelist.com/operation-... · Posted by u/ruik
trustingtrust · 2 years ago
>Hardware security very often relies on “security through obscurity”, and it is much more difficult to reverse-engineer than software, but this is a flawed approach, because sooner or later, all secrets are revealed.

The later works when you are not as big as Apple. When you are as big as Apple, you are a very hot target for attackers. There is always the effort vs reward when it comes to exploiting vulnerabilities. The amount of effort that goes into all this is worth thousands of dollars even if someone is doing it just for research. If I was doing this for some random aliexpress board it would be worth nothing and probably security by obscurity would mean no one really cares and the later part works here. But I wonder what Apple is thinking when they use obscurity cause people must start working on exploiting new hardware from day 1. You literally can get one on every corner in a city these days. Hardware Security by obscurity for example would be fine for cards sold by someone like nvidia to only some cloud customers and those are then assumed obsolete in a few years so even if someone gets those on eBay the reward is very low. iPhones on the other hand are a very consumer device and people hang on to their devices for very long.

trustingtrust commented on HN website is/was down. I'm curious why?   hn.hund.io/... · Posted by u/karmakaze
binocarlos · 2 years ago
I use hacker news as my "is my Internet working" test - it's fast and always up (kudos)

So yes, I also thought my Internet was broken :-)

trustingtrust · 2 years ago
I restarted my phone because I thought my network was down blindly believing HN can never be down. Then I opened another website and realised this is one of those times that the website was actually down.
trustingtrust commented on OpenWrt: Smartphone USB Tethering   openwrt.org/docs/guide-us... · Posted by u/tosh
trustingtrust · 2 years ago
A lot of 4G modems connected via pcie still are USB interfaces internally. So the usb 2.0 limits on these are still there (though that is not much of a problem in general as 4G speeds are low). With 5G if you connect to a usb3 port for tethering I wonder if the speeds are above the usb2 limits or if this driver is still limited to usb2. Because with 5G modems, most of the devices that use it as a backup likely use pcie speeds. Would be a waste to use usb2 speeds
trustingtrust commented on Charging a lithium battery to 80% only?   electronics.stackexchange... · Posted by u/janandonly
belltaco · 2 years ago
I wish they would label it so that it shows 100% charge when it's actually charged 80%, and then give an option to 'overcharge' a configurable amount till 125% (the current 100%). That way it will make people aware that they are reducing the battery life by overcharging, and be picky when they overcharge.

But this won't happen because reduced battery life is a big direct and indirect(by reducing performance like Apple does with old iPhones) driver of phone upgrades.

trustingtrust · 2 years ago
Almost nobody cares about saving batteries. Those are replaceable and cheap to replace every couple of years.

Innovating more battery life and leaving 20% battery life on the table sounds extremely pointless for what costs 20-30$ a year but lets you use the device all day instead of just shutting before the end of the day.

trustingtrust commented on Fourteen Years of Go   go.dev/blog/14years... · Posted by u/keyle
trustingtrust · 2 years ago
I have always felt there has been a learning curve for Go and Rust when it comes to syntax for me. I have used C C++ Java and Python and PHP for a long time but whenever I start Go or Rust, over time I lose interest thinking this is too complicated and difficult for me (no idea why).

Is there anyone in the same boat and are there ideas how I can make myself get good with at least one of these trending languages ?

trustingtrust commented on Ask HN: To what extent have digital payments replaced cash in your country?    · Posted by u/jn31415
albert_e · 2 years ago
this is true for the affluent class.

smartphones are necessary to pay via UPI

smartphones--bank accounts--aadhaar card

in case of some low income workers, smartphones are not universal

in case of some migrant workers (including those that come from neighboring countries in search of jobs) .. aadhaar or bank account may not be immediately available

while digital payments are definitely becoming common cash is still accepted

in some cases autorikshaw drivers either avoided UPI (because something went wrong previously and their account went into negative balance ..so any payments they accept there will be swallowed by the app) ..or sometimes ask for cash as preferred mode because for them it is easier to spend immediately (sometimes even for sentimental reasons like first ride of the day)

trustingtrust · 2 years ago
Not true. I live in India and have traveled to smaller villages in the south and some in the north. People have started to avoid cash altogether because of few reasons. They do have UPI they just don’t like it cause they like cash. There is never any issue with UPI, it’s just an excuse.

Cash creates a problem of giving change that end up dissatisfying the customer or the customer just leaves. Only after UPI people understood this so now they want you to buy it as payments are not a hassle. Rickshaws in cities have lost interest in random hires. I have waited 45 minutes for rickshaws. Everyone is on Uber or Ola cause they will show up and say cancel the request and give me little less money instead. Pretty common. So they don’t have the option to say no to UPI. They try to give you reasons why it’s not working but they just want cash for obvious reasons.

UPI also allows people to have multiple accounts in family to accept payments. This way they can avoid any tax payments as small amounts in small villages are not scrutinised by the income tax department.

UPI has created more and easier transactions. Small village or big town, I’ve never seen a shop without a QR code in the last year or so.

trustingtrust commented on Making an USB Ethernet adapter work: hardware solutions to software problems   blog.brixit.nl/making-a-u... · Posted by u/goranmoomin
trustingtrust · 2 years ago
this is a very common chip that’s sold everywhere for as low as 4$ for that entire dongle at retail. If you touch the controller, at full speed it gets crazy hot on this one. The part I struggled with was that I was trying to install openwrt when raspberry pi 4b was new and use this as the wan port as my isp was limited to 40mbps. But the chip got so hot that eventually I gave up after putting on a tiny heatsink because the plastic casing simply offers no heat output. Mine didn’t have this SPI chip on it so both Linux and openwrt (with drivers) worked fine and it showed up as an additional Ethernet port in ip link. The usb cables are so thin I couldn’t leave it just like that cause at any point it would break and it eventually did break I think I don’t know where it is now. I ended up getting a tp link usb adapter eventually but in general usb Ethernet for anything other than just quick management of some console is not recommended if you want to do serious routing in my experience. The tplink one comes with Realtek which is just ‘okay’. Pcie Ethernet intel cards offer cpu offloading. I’m not sure if that can be achieved over usb. Heat is another problem as the casing is the limitation on it which is not a problem on pci cards or motherboards.
trustingtrust commented on Nokia to axe up to 14,000 jobs to cut costs   bbc.co.uk/news/business-6... · Posted by u/vanilla-almond
tgaj · 2 years ago
Not suprisingly, most people commenting in this thread have no idea about Nokia and what they are doing. They are really big and somehow succesful company, but no one can escape recession.
trustingtrust · 2 years ago
Agreed. I think just like everyone in this world, they hired aggressively when money and contracts were there and firing now that it's slowed down. Majority of their networking has been from Alcatel Lucent over which they built their own products but I feel good management can take them to the top. They don't make groundbreaking networking products but they do offer solutions people are willing to buy which telecom companies in North America would love to invest in if done right. It's sad they couldn't capitalise on Huawei ban that much.
trustingtrust commented on Nokia to axe up to 14,000 jobs to cut costs   bbc.co.uk/news/business-6... · Posted by u/vanilla-almond
manxman · 2 years ago
Nokia’s been a zombie corporation for a long time. This isn’t news… this was a scheduled calendar event from at least as far back as 2007.
trustingtrust · 2 years ago
A lot of 5G deployments shifted to Nokia after Huawei ban and Nokia also dominates a lot of GPON FTTH deployments for end to end solutions.
trustingtrust commented on Google cannot close your GPay account anymore    · Posted by u/trustingtrust
verdverm · 2 years ago
How do you expect a company to fight fraud without knowing where a transaction happens?

Seems like you have a pet theory and don't want to consider others

https://www.khaitanco.com/sites/default/files/2022-01/Data%2...

trustingtrust · 2 years ago
I am not saying they shouldn't retain data. I am saying they should allow me to delete the account which they did until some time ago. I checked the laws linked and it doesn't say anywhere you can't delete the account. So for example if I was to delete my account my contacts don't see me on GPay anymore. If google keeps the data of both location and payments on their servers for whatever time it's required (Square did the same) then it's fine as laws required that. But until they don't allow me to delete the account the contacts keep seeing me as active on the app. This is not about privacy of payments it's about not allowing to delete the account which seems a generalised privacy problem of not allowing deletion of accounts.

u/trustingtrust

KarmaCake day369July 23, 2022View Original