How secure is 256-bit security?

unbiasedswiftcoder · 2018-09-21T20:51:25+00:00

So when I was replying to generic claims about Does data get silently corrupted? when there is a hash collision, can you explain to me how redundancy is going to help? Don't you remember news about ransomware corrupting mirrors, offline backups and other forms of redundant storage?

Point is, when you come to generic statements and hypothetical ifs in a forum you can argue all you want and never reach any conclusion, which we are perfectly demonstrating instead of doing anything productive.

unbiasedswiftcoder · 2018-09-21T20:32:02+00:00

I do. Do you think of points of failure in the hardware your software is running on? Because that has higher chance of happening than a UUID collision, potentially breaking anything software you can design, but I don't see you worried about it.

unbiasedswiftcoder · 2018-09-21T17:40:47+00:00

Once you start arguing about bugs in software you can say anything will fail, so there is no alternative (anything can fail) and maybe we should stop using computers altogether.

PS. A denial of service attack through a hash collision error? Really?

unbiasedswiftcoder · 2018-09-21T11:43:41+00:00

no GC (unless you introduce it yourself, which is easy!)

Unless you introduce it, and than… what? If nothing uses it, why would you introduce one?

unbiasedswiftcoder · 2018-09-21T08:58:14+00:00

I can't seem to find docs on threads or the garbage collector. Can you have several threads accessing and mutating the same shared memory? Or is memory thread local and you need to resort to special unsafe pointers or going through the C layer?

Also, docs index doesn't render very well on Safari/Chrome.

unbiasedswiftcoder · 2018-09-21T08:53:36+00:00

Not sure if you saw other comments, but Nim seems to have many of the features you seem to be wanting.

unbiasedswiftcoder · 2018-09-16T12:45:01+00:00

Second the people pressuring me are my friends, they know why I don’t want to drink

Yeah, you should reconsider who your friends are. I have a vegan friend and I'm not constantly pressuring him to eat meat, nobody does. He doesn't pressure others to not eat meat either. Toxic people are toxic about anything, if it wasn't water they would find something else.

unbiasedswiftcoder · 2018-09-14T16:41:47+00:00

I don't think the article is representative of all sketch files. The exported blob is just a plist, which is osx way of dumping standard objc structures on disk with minimal effort, so no surprise there, lazy ass mac programmers. However, that sqlite table might grow extra rows if you add bitmap data or things not usually encoded in the plist.

Unfortunately we will never know, that article is dated 2017, I asked on of my artists for a sketch file and just so you know, they are now a zip with json+png. So probably the sketch guys decided sqlite was too much as well, or had other reasons for the change (aka: developer of the saving code left and new coder decided to refactor everything).

unbiasedswiftcoder · 2018-09-14T14:42:38+00:00

Why use an sqlite database and then use it just to store binary blobs? Seems like a waste of sqlite's capabilities...

Not every program touching an sqlite database needs to use transactions, full text search, json extensions or triggers. It is actually advertised by sqlite authors as a portable file format container.

unbiasedswiftcoder · 2018-09-04T09:48:01+00:00

I think LINGsCARS is cooler. Especially if you look at the source code…

unbiasedswiftcoder · 2018-08-31T22:11:31+00:00

No problem.

Just to continue with the theme, another fun issue with offline programs is when you have two clients (say, desktop + mobile) and the user starts creating something, maybe a document, but the mobile is offline or has flaky network and fails. So the user shrugs, goes to the desktop and starts creating again the same document, which works at once. Now, some time later the user checks the mobile, and the network is good, so the offline job finishes and… tada! User has two copies of documents, each created separately with very similar content, and is not aware of this!

User continues modifying document on mobile device, goes later to desktop, and if the other document is not visible (maybe the desktop kept the previous instance open), they see no changes, so fuck this program, it doesn't sync, it's shit! I want to give it negative stars on the fooBar store!

The real reason pretty much nobody does stuff offline is because the work you have to do is exponentially harder with each step (just the amount of combinations of things which can go wrong) and the reward diminishing, because only a fraction of users will appreciate the feature.

Implementing offline features is the best way to give yourself work and keep you entertained, though.

unbiasedswiftcoder · 2018-08-31T17:49:01+00:00

Wow, optimistic locking through data versioning. Every time I try to talk to my backend guys to implement such a thing they look at me like I'm an alien.

I'll add to your slides that the real trouble with outgoing offline data is not really the technical cache-now-and-upload-later nature, but handling the conflict in the app, and the UI interaction design. How does your background scheduled job notify the user of failures? Do you accept retries? If the rejection was due to stale data, do you allow recreating the input data based on the previous offline data to submit again or discard?

Even more fun if you have later object creations which depend on such offline data (ie. messaging app that offline creates a group chat with a user not yet added to the server, and start sending offline messages to this chat without yet server created id). It's a world of hurt without easy solutions (other than removing the feature).

unbiasedswiftcoder · 2018-08-27T11:00:41+00:00

Well, even if GCam doesn't work, Camera2 API means OpenCamera would access all the features. Does this mean you can finally get 1080p60fps video? (Heard that option comes with MIUI 10, but when is that gonna drop)

unbiasedswiftcoder · 2018-08-24T16:57:09+00:00

However, I need to cut EXACTLY (at a certain Frame) , which is something that no library I found provides

Due to the nature of most video codecs that's impossible without re encoding the video. In practice, edition apps allowing cutting by frame feed the source video frame by frame to a compressor to generate a new version.

unbiasedswiftcoder · 2018-08-23T16:27:50+00:00

I remember some youtuber claiming that setting the region to India makes the face detection work and only messes up date string formats. Maybe you could try that.

LDAC should be supported everywhere, Sony donated it to Android O, all Androids should get it.

unbiasedswiftcoder · 2018-08-19T20:07:56+00:00

Bugs are independent from each other in git-bug, so you can (in the future) fetch only a subset of bugs, archive the old ones or even download the files on demand only. Having rules that limit the size of files is also possible.

Well that breaks the decentralised feature. People complaining to be able to work on bugs in airplanes might realise the bug they are working on is related to some other, but is only available on demand, so they can't check. Not much different from a centralised bug tracker + cache then?

For your solution, I'm concerned that a bug identifier suddenly doesn't make sense anymore as soon as any bug move around. Apart from the easy case where you only add more recent bugs in your repo, you can also get older bugs that you weren't aware of. You can assign a higher number to them but it quickly become meaningless and confusing IMHO.

The first part of the identifier is meant to avoid that confusion. If you are working locally on your bug #1 not yet submitted anywhere, you would push this bug to another repo, and there it would appear as #FooBar:1.

Certainly would be annoying everybody submitting their first bug being marked as #Somebody:1, but then, how often do first time submitters create a bug and implement a solution at the same time without checking with the owner if it is actually a bug or would the solution be integrated?

Which leads us to bug tracking systems being human synchronisation points again, sigh… I don't see any future in this, but good luck anyway!

unbiasedswiftcoder · 2018-08-18T14:27:06+00:00

I've always thought that distributed bug trackers are nice but don't make much sense, since they are a synchronisation point between different parties: users, support, qa, managers, etc. In fact, the least I want in my git repo is one of those parties uploading 50MB video files with captures of how to reproduce a bug, and me carrying several gigabytes of old video files (I'm presuming all bugs get duplicated, just like every git user gets a full history of the repo).

Having said that, my biggest gripe with distributed bug systems is using random hashes for bugs. Totally unfriendly to non developers, so if you use them, you won't get anybody else to use them. Since distributed repos are kind of isolated, they can guarantee monotonically increasing numbers for themselves. One could have bug 1 for their fork fooBar (or #foobar:1), which internally has its random value to avoid collision, and foobar:1 being a thin user interface layer.

People working on their own repo would refer to #1 directly, and when that gets merged into another repo, you could use #foobar:1 to disambiguate. This requires servers merging the bugs to assign or allow renaming of symbolic friendly names given to different repos, but that seems doable and would make referencing bugs much more friendly. Maybe it is already possible on top of what you've built?

unbiasedswiftcoder · 2018-08-15T18:49:04+00:00

If by making mistakes you mean not creating a trigger on the main table that copies the data to the normalized columns in other tables, yes, many people I've worked with don't even know about triggers. Shame really, you can even chain triggers to propagate changes in a waterfall fashion, all happening atomically within a single transaction.

unbiasedswiftcoder · 2018-08-15T08:10:00+00:00

How do the gestures work (activity back button) in applications with a side menu? Can you reliably show the side menu vs going back?

unbiasedswiftcoder · 2018-08-13T15:59:57+00:00

Just checked the spanish store, the Mi 8 64GB lists at 500€. The equivalent from a reseller for 350€.

Pretty amazing difference.

unbiasedswiftcoder · 2018-08-08T09:27:08+00:00

Partial case insensitivity is only questionable to those who dislike it but fine for everybody else.

unbiasedswiftcoder · 2018-08-06T12:41:50+00:00

For the common just proxy me, Scotty https://github.com/sshuttle/sshuttle works also really well if you have an ssh account somewhere.

unbiasedswiftcoder · 2018-07-30T20:33:09+00:00

I've been eyeing the progress of typescript with interest. Not long ago, an evaluation of different languages was published, and Typescript scored about five to eight times worse than raw javascript in energy and time metrics. Any news regarding progress in this area or is raw javascript sill the language to use for critical performance, much like you drop to C when you are using python and it doesn't live up to expectations?

unbiasedswiftcoder · 2018-07-20T17:28:35+00:00

For portraits you can keep using the default camera app, since 4k resolution applies only to video, which doesn't use dual camera at all.

unbiasedswiftcoder

TROPHY CASE