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Search - "crypto"
Government on crypto currencies
Government - "You could loose all your money"
Government Again - "You could loose all your money"
Government in loop- "You could loose all your money"
News - "Government planning to ban crypto currencies"
Government - "Told Ya"83
1995: Viruses create funny VGA effect
2000: Viruses send SPAM e-mails
2010: Viruses steal credentials
2016: Viruses launch DDoS attacks
2017: Viruses demand ransom
2018: Viruses mine crypto coins14
Buzzword dictionary to deal with annoying clients:
Dark web—Onion service
Data science—statistics done by nonstatisticians
curl cheat.sh — get an instant answer to any question on (almost) any programming language from the command line
do curl cht.sh/go/execute+external+program to see how to execute external program in go
And this question: why I actually should I start the browser, and the browser has to downloads tons of JS, CSS and HTML, render them thereafter, only to show me some small output,
some small text, number or even some plot. Why can't I do a trivial query from the command line
and instantly get what I want?
I decided to create some service that will work as I think such a service should work.
And that is how wttr.in was created.
Nowadays you probably know, how to check the weather from the command line, but if not:
(curl wetter in Paris if you want to know the weather in Paris)
After that several other services were created (the point was to check how good the console
can solve the task, so I tried to create services providing information
of various nature: text, numbers, plots, pseudo graphic etc.):
curl rate.sx/btc # to check exchange rate of any (crypto)currency
curl qrenco.de/google.com # to QRenco.de any text
And now last but not least, the gem in this collection: cheat.sh.
The original idea behind the service was just to deliver a various UNIX/Linux command line cheat sheets via curl. There are several beautiful community driven cheat sheet repositories such as tldr, but the problem is that to use them you have to install them first, and it is quite often that you have no time for it, you just want to quickly check some cheat sheet.
With cheat.sh you don't need to install anything, just do:
curl cheat.sh/tar (or whatever)
you will get a cheat sheet for this command (if such cheat sheet exists inf one of the most popular community-driven cheat sheet repositories; but it surely does).
But then I thought: why actually show only existing cheat sheets? Why not generate cheat sheets or better to say on the fly? And that is how the next major update of cheat.sh was created.
Now you can simply do:
and get your question answered
(cht.sh is an alias for cheat.sh).
And it does not matter what language have you used to ask the question. To be short, all pairs (human language => programming language) are supported.
One very important major advantage of console oriented interfaces is that they are easily
programmable and can be easily integrated with various systems.
For example, Vim and Emacs plugins were created by means of that you can
query the service directly from the editor so that you can just write your
questions in the buffer and convert them in code with a keystroke.
The service is of course far from the perfection,
there are plenty of things to be fixed and to be implemented,
but now you can see its contours and see the contours of this approach,
console oriented services.
The service (as well as the other mentioned above services) is opensource, its code is available here:
What do you think about this service?
What do you think about this approach?
Have you already heard about these services before?
Have you used them?
If yes, what do you like about them and what are you missing?29
The best time to buy bitcoin was when it was released
The second best time was a few years ago when it was only like $200/btc
The third best time was probably last year before they went up 650% in value
The worst time is apparently whenever I buy in10
all kinds of things:
2. Idiots working on WiFi firmware
3. Said idiots telling us that they found a compiler bug when a signed integer optimization screws their codes dependency on rollover. People like that shouldn’t be writing WiFi firmware.
5. Treating weapons of mass terror like machine learning like just a fun game to work on and then release open source
6. The fact that when assholes from all these companies like Facebook google and Amazon testify before Congress our political leaders are dumber than bricks when questioning them so they either a. Ask totally the wrong questions and people get off clean or b. When the witnesses do say something questionable is happening Congress doesn’t have the mental capacity to notice that something of concern was just said
7. despite the fact Linux has an easier to use UI than windows people bitch about how hard it is still
8. How defensive people are over their “own stuff.” “I like windows so if you say anything against it you’re insulting me” or “but I wrote this code you can’t refactor it that’s my mark!”
10. The fact that web assembly, though the superior technology, is going to become popular not because it’s fast but because it makes it harder to block ads and harder to read and analyze the code.
11. The fact that our obsession with web technologies has led to applications that are 10,000x less efficient than other alternatives, the carbon footprint of this is astonishing, and nobody cares. But they all want to save the environment. What?
12. The social disease of social media and how people have become addicted to a degree almost comparable to crack
13. People think being an influencer on Instagram is a real job.
14. People waste preposterous amounts of energy on crypto currency mining despite the fact that it doesn’t offer many real advantages over cold hard cash. It’s still trackable!!
15. Modern copyright law and how it’s been implemented in our web services that we use every day is insane; the music industry is a mafia and are using google as a club to beat us all down with. And google is fine with that.
16. All the music made today is fake and that’s done by leveraging all the “great” technology that (now defunct) digidesign avid and auto tune has brought to us
17. We design computers and software for the stupidest users that easily fall prey to all these things rather than the average person.
18. The Boeing 737 crashes are software related. That means some idiot fucked up and a bunch of people died. Need I say more?
The world will end some day and it will be because of software. You either accept that fact or live in denial.
Dear Telegram, the fact that you're using a service which provides app usage/metrics/analytics kind of is not nice.
"But they've got the right to!"
Of course they do. But, when you advertise yourself as a messaging app focused on privacy, I expect you to behave that way.
And yes, we know your crypto is broken as fuck but that's not the point right now.
Oh and yeah, the next blog item will probably be about Telegram and how not-privacy friendly it is.23
It's funny to see how a coworker of mine and me are very similar minded on some privacy stuff. He's a very cool/open guy and just a regular consumer (used the default services etc) but he shares quite some of my views. This is a convo we had today:
*got to the WhatsApp subject somehow*
Him: oh right, you didn't use that haha
Me: yeah 😅
Him: why was that again, privacy reasons or something, right? xD
Me: uhm yes *help*
Him: Well fair enough.
Me: so you'd think I'm right? I mean it uses end to end crypto... (I'm entirely with him in the next few lines but I always approach it carefully)
Him: they veeeery probably have some kinda fucking masterkey.
Me: why'd you think that?
Him: it has over a billion users, the owner is facebook, fb is directly integrated with several mass surveillance programs, they are known to work closely with one particular one, the intelligence interests are way too high for letting such an opportunity pass and after all, THE FUCKER IS CLOSED SOURCE AKA NO ONE CAN FUCKING VERIFY THE CRYPTO NOR THE APP ITSELF.
Me: I agree haha 😅
Him: it's not rocket science, it's modern day mass tracking/surveillance logic :)
I like that guy.5
So today (or a day ago or whatever), Pavel Durov attacked Signal by saying that he wouldn't be surprised if a backdoor would be discovered in Signal because it's partially funded by the US government (or, some part of the us govt).
Let's break down why this is utter bullshit.
First, he wouldn't be surprised if a backdoor would be discovered 'within 5 years from now'.
- Teeny tiny little detail: THE FUCKING APP IS OPEN SOURCE. So yeah sure, go look through the code! Good idea! You might actually learn something from it as your own crypto seems to be broken! (for the record, I never said anything about telegram not being open source as it is)
- The server side code is closed (of signal and telegram both). Well, if your app is open source, enrolled with one of the strongest cryptographic protocols in the world and has been audited, then even if the server gets compromised, the hackers are still nowhere.
- Metadata. Signal saves the following and ONLY the following: timestamp of registration, timestamp of the last connection with the server (both rounded to the day so not on the second), your phone number and your contact details (if you authorize it) (only phone numbers) in HASHED (BCrypt I thought?) format.
There have been multiple telegram metadata leaks and it's pretty known that it saves way more than neccesary.
So, before you start judging an app which is open, uses one of the best crypto protocols in the world while you use your own homegrown horribly insecure protocol AND actually tries its best to save the least possible, maybe try to fix your own shit!
*gets ready for heavy criticism*22
Banks be like
You don't have much money?
Here, let me keep taking some of that from you until you get more, k?
Oh, that was more than you had?
Now you owe me even more, nerd.
What, you can't pay that either?
Better ask me for a loan so you can pay off your debt to me. Loser.
What? You still can't pay?
I'm gonna take your everything!43
Following a conversation with a fellow devRanter this came to my mind ago, happened a year or two ago I think.
Was searching for an online note taking app which also provided open source end to end encryption.
After searching for a while I found something that looked alright (do not remember the URL/site too badly). They used pretty good open source JS crypto libraries so it seemed very good!
Then I noticed that the site itself did NOT ran SSL (putting the https:// in front of the site name resulted in site not found or something similar).
Went to the Q/A section because that's really weird.
Saw the answer to that question:
"Since the notes are end to end encrypted client side anyways, we don't see the point in adding SSL. It's secure enough this way".
I emailed them right away explaing that any party inbetween their server(s) and the browser could do anything with the request (includingt the cryptographic JS code) so they should start going onto SSL very very fast.
Too badly I never received a reply.
People, if you ever work with client side crypto, ALWAYS use SSL. Also with valid certs!
The NSA for example has this thing known as the 'Quantum Insert' attack which they can deploy worldwide which basically is an attack where they detect requests being made to servers and reply quickly with their own version of that code which is very probably backdoored.
This attack cannot be performed if you use SSL! (of course only if they don't have your private keys but lets assume that for now)
Luckily Fox-IT (formerly Dutch cyber security company) wrote a Snort (Intrustion Detection System) module for detecting this attack.
Anyways, Always use SSL if you do anything at all with crypto/sensitive data! Actually, always use it but at the very LEAST really do it when you process the mentioned above!31
Hey devRanters! A tiny update regarding the privacy tips etc site.
So as ewpratten doesn't have much time right now, I'm doing frontend as well for now.
Since some people also offered to contribute content, which I did not expect, I am also writing an invite/registration (based on invites) as we speak. So, this way, I can invite anyone (based on email address) into the CMS so that they can contribute content as well!
Regarding frontend, I'm introducing a system with icons. Icons? Yes, icons, let me explain:
Every application/service will get a couple of default filtering thingies. (not like clicking something and it'll filter anything out, yet) It'll enable users to see what an application does or does not. What the FUCK do you mean? Alright, so, as example, lets say open source. next to each application (read application/service) listed, there will be an open source icon. If the application is open source, this icon will be green, otherwise it will be red.
This will allow for a quick way of filtering stuff out.
For example, if you're only looking for open source stuff, you can quickly filter stuff out where the open source icon is red!
This will apply to things as open sourceness, metadata saving, usage of good crypto technology and so on. So you'll be able to quickly filter out the stuff you want to use (by eyes) through those filters!
Please let me know what you think and if you have ideas, I'll be glad to hear them!26
The coolest project I've worked on was for a certain country's Navy. The project itself was cool and I'll talk about it below but first, even cooler than the project was the place were I worked on it.
I would go to this island off the coast where the navy had its armoury. Then to get into the armoury I'd go through this huge tunnel excavated in solid rock.
Finally, once inside I would have to go thru the thickest metal doors you've ever seen to get to crypto room, which was a tiny room with a bunch of really old men - cryptographers - scribbling math formulae all day long.
I can't give a lot of technical details on the project for security reasons but basically it was a bootable CD with a custom Linux distro on it. Upon booting up the system would connect to the Internet looking for other nodes (other systems booted with that CD). The systems would find each other and essentially create an ad-hoc "dark net".
The scenario was that some foreign force would have occupied the country and either destroyed or taken control of the Navy systems. In this case, some key people would boot these CDs in some PC somewhere not under foreign control (and off the navy grounds.) This would supposedly allow them to establish secure communications between surviving officers. There is a lot more to it but that's a good harmless outline.
As a bonus, I got to tour an active aircraft carrier :)10
Oh fuck and boy Jesus, how on earth is this still a thing 😦
MD fucking 5 is not a fucking “secure” crypto algorithm.
This site has 14 million breached accounts with fucking MD5 hashes.
I think I’ve had to much internet for today.18
One of my favourite, encryption puzzles is this:
Answer is plain text string in english. Good luck, post solution in the comments!25
What I'm posting here is my 'manifesto'/the things I stand for. You may like it, you may hate it, you may comment but this is what I stand for.
What are the basic principles of life? one of them is sharing, so why stop at software/computers?
I think we should share our software, make it better together and don't put restrictions onto it. Everyone should be able to contribute their part and we should make it better together. Of course, we have to make money but I think that there is a very good way in making money through OSS.
Next to that, since the Snowden releases from 2013, it has come clear that the NSA (and other intelligence agencies) will try everything to get into anyone's messages, devices, systems and so on. That's simply NOT okay.
Our devices should be OUR devices. No agency should be allowed to warrantless bypass our systems/messages security/encryptions for the sake of whatever 'national security' bullshit. Even a former NSA semi-director traveled to the UK to oppose mass surveillance/mass govt. hacking because he, himself, said that it doesn't work.
We should be able to communicate freely without spying. Without the feeling that we are being watched. Too badly, the intelligence agencies of today do not want us to do this and this is why mass surveillance/gag orders (companies having to reveal their users' information without being allowed to alert their users about this) are in place but I think that this is absolutely wrong. When we use end to end encrypted communications, we simply defend ourselves against this non-ethical form of spying.
I'm a heavy Signal (and since a few days also Riot.IM (matrix protocol) (Riot.IM with end to end crypto enabled)), Tutanota (encrypted email) and Linux user because I believe that only those measures (open source, reliable crypto) will protect against all the mass spying we face today.
The applications/services I strongly oppose are stuff like WhatsApp (yes, encryted messages but the metadata is readily available and it's closed source), skype, gmail, outlook and so on and on and on.
I think that we should OWN our OWN data, communications, browsing stuffs, operating systems, softwares and so on.
This was my rant.18
The company i work for has a jenkins server (for people that don't know jenkins, it's an automated build service that gets the latest git updates, pulls them and then builds, tests and deploys it)
Because it builds the software, people were scared to update it so we were running version 1.x for a long time, even when an exploit was found... Ooh boy did they learn from that...
The jenkins server had a hidden crypto miner running for about 5 days...
I don't know why we don't have detectors for that stuff... (like cpu load being high for 15 minutes)
I even tried to strengthen our security... You know basic stuff LIKE NOT SAVING PASSWORDS TO A GOOGLE SPREADSHEET! 😠
But they shoved it asside because they didn't have time... I tried multiple times but in the end i just gave up...13
Would the web be better off, if there was zero frontend scripting? There would be HTML5 video/audio, but zero client side JS.
Browsers would be MUCH more secure, and use way less memory and CPU resources.
What would we really be missing?
If you build less bloated pages, you would not really need ajax calls, page reloads would be cheap. Animated menus do not add anything functionally, and could be done using css as well. Complicated webapps... well maybe those should just be desktop/mobile apps.
Pages would contain less annoying elements, no tracking or crypto mining scripts, no mouse tracking, no exploitative spam alerts.
Why don't we just deprecate JS in the browser, completely?
I think it would be worth it.22
The ultimate "I am vegan" guy will be arch linux user, vegan, trans, crossfitter and cryptocurrency investor. I've just met guy like this in my job. He did not shut up for a while. I am not sure whats he doing and whats his job but my guess is that hes paid for spreading cancer, sucidal toughts and eatig your will to live and talk with people...
R - retard
M - me
R: Hey CopyPasteCode I found this bug, it does 'this' insted of 'this'. *spreads arms to see his "muscles"*
M: *headphones off* Ok, I will look into it... *headphones back on*
R: Btw you invested something in the crypto, didnt you? Ive invested... ...bitcoin... ...crypto... ...litecoin..., do you think that... ...something... ...bla bla bla?
M: *tries not to kill myself after his 5 minutes of monolog* Ye sure
R: By the way Ive found this awesome vegan restaurant that accepts litecoin, would you like to come sometime?
M: *10 minutes monolog about vegan food and shit. At this point I want to die* Ok, I will now work on that back, see you later.
R: ye sure bro (wtf, "bro"?)... *looks like hes walking away* *teleports on my otger side touching my monitor*
WOW you are also a Limux user? 😮 Ivr installed arch linux this weekand and its so awesome, *another 6 minutes of monolog*
M: *smiling and preparing to kill him or myself* Nice, awesome *fake smile*
R: Anyway, I gotta go (FINALLY!!!), btw, I am going to the *name of local trans and gay club*, wanna go with me?
M: *after a month after a breakup with my GF (because she was cheating on me) which everyone in the office knew...)* Not really *trying to thing how to say "fuck off" without having meeting with HR*, I cant, I already have somethimg.
R: Oh, ok. Btw, you are rly cool bro (again), we should hang. We should hangout more often...
I hope someone is paying me for loosing 27 minutes with this guy.15
My next project is creating a genetic algorithm that can play with crypto currencies for me.
I shouldn't have told my family. They think i'm going to be sharing the money now 🙃3
So I am running this crypto project that has dynamically generated private keys for a wallet stored in a Redis database. Nowhere else. The keys are generated on the fly.
At the moment of the happening the wallet had over 3.000 USD on it. I am testing new code locally, supposedly on a local Redis DB. Of a sudden, my code wipes the crypto keys and it turns out that I was connected to the live instance. 😱 Better don't ask me how.
Shock of my life. You know, when you turn pale and dark in your eyes, blood stops in your veins and you just want to die? Worst-case scenario that could have happened. All that money lost in crypto space.
Turns out, my good Redis hosting company kept backups for the past 7 days. Keys restored. Happiest moment of my life.3
Downloaded Kubuntu because i couldn't seen to be able to boot from a freshly created KDE Neon bootable usb.
Installed it onto my netbook (Lenovo Thinkpad X121E) and it worked great!
But just the fact that somehow the installer froze when trying to setup hdd encryption kept bugging me.
Took a random flash drive which was laying around and put it in to see what would happen. KDE Neon booted just like this and everything worked very well with hdd encryption.
I now have a very secure netbook 😊15
Had a final year project defence today in university. There were about 15 CS teachers in the room.
Our project was "Crypto Currency". After all the presentation was finish.
Teachers: so what is this blockchain?
** explained all about it and how it works with marker in a whiteboard **
While most of the projects were rejected and they have asked several cross questions to other friends, they didnt even ask any question to us and said our project is accepted.
Turns out teachers were taught by a student today, feels so good 😎 😂4
Boss to designer: sadly the green logo was not chosen and we will go with the purple one.
D: oh good choice, but why green was discarded?
B: green is not enough criptocurrency related.
Me: in my mind: how a color is crypto related... What wut? Procceed to do weird faces, twitch and spasm while I try to sort this out.
Boss see me and beat me (gently!) with an inflatable chicken.
Guys. Green is not crypto.20
@dfox Thank you very very much for the duck. And biggest thanks goes to @olverine who actually bought the duck as a reward for solving his crypto challenge. Thank you guys13
So I host a few mining pools and some of the stories we hear from miners can be quite interesting. One of our miners recently had his front door busted off the hinges and a drug bust team go into his house and turn the house upside down. How did they determine that he was a threat for growing illegal drugs? Well he had a high power bill because of the miners and he grows flowers and food inside of his house and that was enough for THE NYPD to get a warrant.
Now he is responsible for cleaning up the mess the police made. What scares me the most is that they are tracking soil you buy online along with high power bills. What the hell USA im a proud Canadian9
When you reboot your server and on boot it asks for the hdd encrypted password. I have no clue anymore. Oh how fucking happy I am that we have no users yet and are in closed alpha. Happy to learn this now so I'll never make this mistake again. 😨3
Why do so many people waste their time and their computers turning coal into heat? It really pisses me off.
Often I meet smart guys who are fairly decent coders and after what starts as an interesting conversation is instantly destroyed by cryptocurrency.
It is *exactly* like enjoying a discussion of the intriguing nuances of quantum chemistry only to have the guy say, "thats all cool, but how do you make meth?"
You want to use your decked out rig to make money? Fine. But please help us solve important problems instead of literally wasting electricity. Just google search "supercomputer physics" and you will find a thousand current problems requiring extremely fast computers for number crunching. All of them can make you more money than crypto and all of them help society at the same time.
We burn coal to make most of the electricity on this planet. Most coal stations burn around 20,000 tons of coal per day. The world burns about 250 tons of coal every *second*. This is converted into carbon dioxide. (coal = carbon, add two oxygens when you burn it, producing three times as much mass in CO2, which then goes out the smoke stack)
The big picture is this: currently we are forced to burn coal to make the world work. Turning off the boilers would result in an almost instant apocalyptic collapse of society. BUT, we don't need to burn it merely to produce waste heat in your video card array.
Please use your superpowers for good.
So I had my first hackathon ever.
It was about co2 reduction which is pretty neat but our team leader had a different view on this. He only saw money in his idea so we build a smart energy meter that advised the user on how he should control his energy. And if the user had solarpanels or something his overtake of energy would be converted into a crypto currency and transferred by our Blockchain system.
The idea is pretty cool but it had no real co2 reduction and way too customer based. Which kinda sucked for my first hackathon but our business guy gave a amazing overwhelming pitch about stuff we didn't make at all. And somehow we ended up on the third place yay4
So had this virus today...
Doesn't let me install avast.
Doesn't let me run cmd
Closes Firefox everytime I mention the word malware in the search
Closes IE too if I search malware
Appears out of nowhere even after I surgically remove it with Linux.
I guess I have to reinstall my OS :(13
"And there you have it folks. Open-source "many eyes have looked at it for years so it must be secure" crypto code."
Case 1 - You sold the coins. And price continue to increase
Case. - Even when the coin reached it peak, you just hold the coins, because you learned something from Case 1. Eventually coin collapse.
And this continues in loop6
I passed my Security+ cert exam! I know a lot of people say it's super easy, but it actually has a lot of really specific networking stuff, and some legacy tech specifics, etc.6
Im so frustrated with myself . I've always been afraid of being stupid . Perhaps it was because i was always called the "less intelligent" sibling by my parents . Well i did self-learn java , c++ and android (when i was 15) and made some apps and i did get acknowledged finally but i may have not acknowledged myself . I got into college a couple years ago and i can tell you right out that its like an island filled with stupidity. The teachers , the students. The other day i caught my teacher learning how a transistor works. This is unacceptable for someone who is teaching us advanced op-amps and other circuits . Well , I did get into this college cause it was less tedious and i thought college doesn't matter cause i can self-learn . All i needed was free time . Well college totally destroyed that too and provided no facilities in the process as well . So yeah should i blame my college for my inability to do things the past couple years. I mean i don't think i've learnt a single thing all this while. This is where my frustration begins cause i dont want to blame the college , it's not going to help me and i'll probably end up in a 9 to 5 call center job at this rate . Im also very heavily frustrated with myself , it's like everything i've done so far has been a path of least effort. I have tried a few things which were all just fads like machine learning and crypto and even trading . They felt good and thats what scares me , maybe i don't have the passion and am just looking for a quick buck . This is clearly reflected in the ideas i've been having as well . Well i've never had access to proper funds but now im just trying to justify this layman emotion . I just want to learn and be passionate about learning , researching and i just want enough funds for that . But im afraid , maybe its just that i want to feel superior than my circle . I mean i still don't know why i tried learning rust and wasted even more time setting up fedora and everything around it while i already had a working debian setup and a programming language i'm kind of versed with . i wouldn't say well cause im a self learner and i feel guilty for that . I definitely know i just learnt the surface of the language . Deep down i'm just another stupid fad obsessed guy who feels better by choosing a more complex language that my colleagues look upto . Is this what i am , if so im scared and i don't know what to do . People say that you are what you are and you cant change that . If i cant change this then i dont deserve this wasteful stupid life . I don't know what i should do and it makes me cry . Maybe acknowledging this would've helped but it hasn't , I've felt better playing fortnite rather than learning some basic electronics. Im another one of those aren't I ?18
Anybody else feel like you've missed the crypto-currency bus?
It's one of my frequent regrets this past year, and I'm still figuring out how to get started earning some BTC.7
Tried mining ethereum today. Just wanted to check that out, for the heck of it. Fired off a p3.16xlarge instance on AWS, 4 x Tesla V100 running at $12 an hour! It was an absolute beast. Anyway, kept it running for 9 hours and earned about $5 before shutting it down. Cost me $108 to earn that $5. Had a lot of credits expiring in a couple of days, so I wanted to burn them off anyway.
So crypto mining, not easy money.7
Have you heard that Facebook is developing a cryptocurrency?
Huge waste of money. Everyone knows Facebooks security flaws and will problably not invest in their cryptocurrency because of that.16
I got a kindle paper as a hand me down gift. And I feel I'm reading so much more than before, now!
I'm starting a new small novel
A Wrinkle in Time, I'll be reading alongside my girlfriend.
I'm 52% done with a book called
Python Tricks: The Book
Literally coolest book I've touched. Contains a bunch of different tidbits about the language, granted most of them confirmed my understanding, but it's still neat to read and learn about them in a more rigorous setting.
I'm 13% done with another book called
How to Day Trade for a Living
I'm heading for the crypto currency exchange, but with a catch,
I'm reading another book called
Genetic Algorithms with Python
You can probably already guess where I'm heading.
I feel armed with more knowledge and I feel like this is a really great way to start the New Year off.8
I feel like I've ranted this before. many times. but here we go again because Australia.
why do people think you can just ban math? like really?! that's what crypto laws do. they require companies to use shitty math. and what prevents me from using the good math? nothing! oh I mean... I won't use it? scouts honor.
you can't ban math.
literally billions of internet users don't fall in your jurisdiction.
no single jurisdiction can cover more than a subset of the internet.
I will use whatever maths I damn well please.
fuck off. please stop making us less safe.
Apparently Razer is rewarding its users with "Razer Silver" - currency for use ONLY on Razer Products - if you install their crypto miner ("Razer Softminer") and earn them money? ...what???
Thoughts? I think this is ridiculous. But I am also curious about it.5
Market Cap drops to $600 B
"I am not selling now. It will bounce back 😀"
Market Cap drops to $500 B
"I am not selling now. Just FUD. Fuck whales. It will bounce back 😃"
Market Cap drops to $400 B
"Haha. Nice played whales. But I am not selling now either. It will bounce back 😅"
Market Cap drops to $350 B
"Ok. The market is fully saturated now. Not gonna drop anymore 😓😐"
Market Cap drops to $300 B
"I think I should sell now 🤔🤔"4
Heey, it's me, D3add3d! As you might remember there was a crypto riddle posted by @Kimmax approx. a month ago. Now I'm here with another crypto riddle, it should be fairly easy one. The previous riddle was based on PGP so no rotation of alphabet was involved.
Here is the riddle:
(image irrelevant to the riddle)26
So now you can hire a container with computers and all that stuff so you can start mining crypto currency immediately... What is humanity going to be in 10 years? Everyone's just gonna mine Bitcoins instead of working? 😦6
Well, seeing as I deal with a fair few WP sites I have quite a few tales of this but they're never very fun.
Thankfully I set up a few traffic monitoring tools so I can watch whatever is happening when we have a live site and over the past few months there have been a LOT of attempted crypto-mining hacks.
It's basically people trying to abuse the xmlrpc function in WP to send malicious code and install it if it runs. Thankfully it's easy enough to block because they all use the same sort of instance to run the attack. It's always Windows 7 using Firefox 40 for some reason...
Just the usual brute force attempts to login and simultaneous attempts to abuse the xmlrpc. Nothing fun... yet.2
Just realized, that after a few months of running my crypto trading algo, i have around 0.1 bitcoin. Started by mining monero in like february, and just traded back and forth afterwards.5
For those of us that watch Silicon Valley [un]ironically, they actually made a generic ICO website 😂
WARNING: I am a n00b at this crypto shit!
I've decided I might dable in cryptocurrency mining for a little and see what comes of it but have no clue how to start... Can someone point me in the direction of anything that could be helpful?27
Recently at my work everyone got all hyped about blockchain. I've spent years studying it and especially crypto so I like to think I know a lot about it. Now every time some feature is discussed (like tracking video views) someone non tech shouts out "Oh we can use a blockchain!" And I have to spend half an hour convincing them why it's a bad idea in this particular case. Like we don't need to share that data, we don't need to ensure integrity without trust etc. I mean a blockchain is a great piece of tech but please stop trying to apply it everywhere...
It's like people think that the blockchain features at its most simplified level don't work anywhere else. E.g. as if stuff you put into MySQL suddenly changes because data integrity is not a 'feature' in that sense...2
!rant + question for Bulgaria ranters
I've recently came through vps.ag owned by BelCloud (https://www.belcloud.net/)
Was wondering, do you recommend it? I liked the fact they don't ask for personal details + have low prices for my needs
I'm checking their payment options and found those, I'm a bit freaking out here as I only heard about Paypal and crypto coins.
Ten ways to fail at public key cryptography, Today:
When encrypting a file for your coworker, encrypt for your own key instead of his/hers3
I noticed the main dogecoin repo was one star short of a significant milestone. Is it odd to feel honoured to be their 2000th?1
WHAT THE FUCKING SHIT DO YOU WANT FROM ME??! I LITERALLY GET SPAM MAILS EVERY 5 MINUTES (i know I know, some of you get more than that) ABOUT BITCOIN. I NEVER DID ANYTHING FUCKING RELATED TO CRYPTO CURRENCY! HOW DO YOU KNOW MY EMAIL?? LIKE WTF. I'm sitting here doing my stuff and every few minutes my phone starts ringing and I'm like "hey maybe person x answered or something else important happened" but when I actually look at it to see whats up it's just a fucking email about bitcoin being outdated and it tells me to maybe invest into other crypto currencies. After actually reading one of the spam mails because I was interested in what they actually want from me I had to find out that they do not even mention any other currency or website. WTF INTERNET?? WHAT DO YOU WANT?4
I’m working on a personal project on React Native to learn how to work with, basically it’s a mobile interface to interact with crypto exchanges through their APIs to centralise everything on this app.
This morning I got a personal message from twitter that asked me:
🙍♀️When will this be done?
🙎🏻♂️I will work on this during my days off next week
🙍♀️You should add a feature that let people know in which exchange a coin is cheaper
🙎🏻♂️It’s a good idea but there’s so many parameters such fees to take in account there’s no correct estimations
🙍♀️Leave out the fees
🙎🏻♂️Fees are important, people have few money to invest normally
🙍♀️What about getting posts from cryptoblogs and putting them in a feed?
🙎🏻♂️That’s exactly what Blockfolio does. I see you have a lot of ideas and I appreciate the input but what is your point here?
🙍♀️I want an app that tracks lowest prices and has a feed with my blog posts. Will you work for me? There will be no way to monetise first months.
I guess I’ll never answer her. Like trying to turn MY app to HER app and then ask for free work. Bye baby!4
Ok so I have done some work with crypto currency mining pools and recently a client requested for me to make a splash page that showed data from multiple instances of these pools APIs. I went to find some documentation for this open source api and to my surprise there is none. I thought of querying the public API from the clients side and it worked, however it's so slow that the data shows up roughly 20 seconds after the page loads.
Easy fix right? Make a PHP server get the data every 5 seconds, cache it and serve the data with the page and use a websocket for live updates! Until I found out that there is no practical way in this garbage framework to get the damn API data without making an HTTP request or mutilating the original source code. I'm so done with this garbage framework. It literally loads pages based on a page and action parameter on the index.php. I quit.1
Today I made this:
a crypto price alert page that plays. you suffer - napalm death
like the gilfoyle one.
with the intention to add PPC (PiedPiperCoin) to the list of currencies.
but CORS & the missing https for piedpiper.com stopped me. :-(
I've spent the past few months working on creating a decentralized application network built for developers. Here's a link to a quick blog post I made explaining the idea. I'd love to get some of you on board! https://dev.to/alexdovzhanyn/...2
In an encryption-module, I had a bug, that caused my PC to crash, every time I tried to encrypt something.
Turns out, the loop, that appends
0-Bytes to the string, to make it Block-Cipher compatible,
Had an logical-bug in its exit-condition, that caused it to run infinitely and allocate an infinite amount of memory.
In 2018 everyone wanted to be in crypto. In 2019, we will find out who really wants to be in crypto. 💸💸💰19
If anyone is interested in crypto challenge. This one started 30 mins ago. First one to complete, will receive a free ticket to JSheroes conference.
How I feel right now dealing with crypto infection/ransomware
Dammit DevRant isn't attaching my picture and no error is given.
Here's a link I guess
Not sure if this is progress or what... But the people who asked me to fix their laptops or build their website now want me to help them out in starting their very own crypto currency.7
A few days ago our server was compromised due to an outdated Jenkins version. The malicious user installed a crypto miner on the server... The same day that it was found I told management that I'm interested in helping out with the server. Since then, nothing happened... No updates, no security measures, no nothing (except for the removed crypto miner and updated Jenkins software)
Oh well only a matter of time before another hack...
Question to some (who work way way way longer than me) med - seniors, should I make a big deal out of this? And keep pressure on it. Or should I just leave it be and wait for the next comprised server? I know devrant is not a Q&A service, but some dev to dev advice is much appreciated.
My father is very interested in stocks and thus he has also heard of crypto currencies. He just asked me if I could setup a Bitcoin wallet and if I know more stuff about crypto currencies.
I myself know a bit about these things so any tips for starters? 😄2
I cant wait for edgey hipster SoDev students to start talking to me about underground git repositories that they use. Although, at least they'll stop talking to me about ML, NN, and crypto.3
TL;DR: Phone akku is draining, I steal our schools power. And secret plans to become rich.
My phone accumulator (heh, not a battery) DRAINS these days. It's fucking old and the temperatures are so hot that we actually afternoon classes are cancelled 🔥
So anyways, I'm sitting in the library (15 min break) and secretly charging my phone, devRanting on these wrongly configured, distorted monitors of this one computer that is connected with like 20 work stations xD
I'm stealing the schools power but the school owes me time (+2h of more useless sitting at school with my new timetable) - and time is money. And the schools money buys power. So I don't feel bad about it.
Actually a friend and me wanted to develop and install a plugin - when being able to bypass the reset-application in our school network - that uses the schools computers and their power to do crypto mining.
I wouldn't feel bad about it.4
Which will block browser coin miners on Chrome for now. Other ad/script blockers might work (though not always guaranteed).
Currently, these miners don't limit their CPU usage (and neither does the browser) so it's not great for your PC use.
If implemented correctly, like only using for a few seconds or for captchas/link shorteners (as suggested on the Coin Hive site), this could be a nice alternative to ads. But there is a guarantee that many will start using this unethically and not even tell users, nevermind that they'll do it for the entire session of the site.
Add Service Workers to the mix and it's a bag of trouble.12
For those of you who are riding the crypto currency train I have a question. I'm looking to colocate a few antminer s9s and I'm unsure how to verify that the cooling will be adequate.
What is the best way to verify this?5
The Elixium blockchain project is coming along pretty well! We worked on it pretty hard for a few months but then I had to take some time off to deal with life stuff, but now I'm able to work on it again and I can honestly say I've really missed it.
I'd love some more open source contributors (after all, that's what decentralized software is all about), so if you're interested, *every little commit helps*.
Here's the GitHub repo: https://github.com/elixiumnetwork/...9
While attempting to quit smoking and after spending a full day trying to understand why the previous devs took this approach to encrypting a string and my lack of nicotine addled brain not allowing me to see that this was a “Secure”String and so uses a machine specific key (that’s why the code that worked locally wouldn’t run on production 😑) this is my rant on comments added to the helper I had to write
/// If you are using this class and it's not for backward compatibility - then you probably shouldn't be using it
/// Nothing good comes from "Secure" strings
/// Further to this Secure strings are only "useful" for single user crypto as the encryption uses the login creds, transferring
/// this data to another client will result in them never being able to decrypt it
/// Windows uses the user's login password to generate a master key.
/// This master key is protected using the user's password and then stored along with the user's profile.
/// This master key then gets used to derive a number of other keys and it's these other keys that are used to protect the data.
/// This is also a broken crypto method via injection (see Hawkeye http://hawkeye.codeplex.com/) plus the string is stored in plain
/// text in memory, along with numerous other reasons not to use it.
public class SecureStringHelper
Sometimes I commit fixes for issues on my crypto exchange api repos without testing them and tell the issue author to test it themselves because "I don't have api keys for the respective api" to test it.
I'm fully registered on every exchange from here to Japan. 🙄
Me to Me - I will Buy 1 Ethereum after Exams ( 8th Dec )
After Exam -
I will buy it soon.
Ethereum touched $7002
Avoided IoT(IoS - InternetOfShit) for a long time now, due to the security concerns with retail products.
Now I looked into 433 Transceiver + Arduino solutions.. to build something myself, just for the lolz.
Smallest Arduino I found has 32 KByte of programmable memory, a tiny tiny crypto library could take around 4 KBytes...
Set a symetric crypto key for each homebrewn device / sensor / etc, send the info and commands (with time of day as salt for example) encrypted between Server <-> IoT gadget, ciphertext would have checksum appended, magic and ciphertext length prepended.
Be safe from possible drive-by attacks, still have a somewhat reliable communication?!
Ofc passionate hackers would be still able to crack it, no doubt.
Question: Am I thinking too simple? Am I describing just the standard here?14
Sorry if this is a bad read, pretty new to devRant and writing in general.
I can't help but think and think of how much I fucked up my opportunities to completely change my life/financial status a couple of times. Damn.
A few years back (it was 2009, I think) I was playing Diablo II online, helped some random guy get through the hard levels. Normally, in such situation the lower lvl player allowed the higher level guy to grab the valuable boss loot; however this time the guy except sharing the loot with me asked me if I want his spare 2000 bitcoin. I asked if it's of any value, he said "not really".
I said I'd contact him later, when I figure out how this thing works and how to setup a wallet.
Guess what, I was too lazy and forgot about this thing completely. Then we lost contact.
In 2010, I made a comeback to bitcoin, but instead of buying it, I downloaded the bitcoin client, the blockchain (it was 800 mb in size, I remember) and have been contributing by running it on my PC for like a year.
Finally decided to get it ~3 years ago. Bought 2.5 BTC for 400$.
Was holding it, until I fell for the "free OmniseGO" scam and somebody stole them off me.
All of these can't get out of my head.
I visit coinmarketcap literally every hour to see how much I could have now. My girlfriend, friends, family, all fail to cheer me up. I still made a pretty good deal buying 5.5 ETH for 45$ and thats like 2500$ soon, its nice but this much I can make by coding
Shit, what do I do to stop being stressed except for seeing a psychologist.
May my failure make you smile today4
I'm going through a KhanAcademy course learning about cryptography. I learn better by doing, so I wrote a script. It shifts bytes up depending on a random int produced by a high entropy pseudo random number generator using a sha256 hash as the seed. I'm trying to find information on the flaws with this method, that lead us to create DES, and then AES.
When you need just simple plugin for the browser and what you get is a crypto miner fully utilizing single core :(2
Fuck all these shit sites who are using/hiding coinhive or other shitty JS crypto miners. I really hope this will die soon(i know it probably won't), am fucking tried of it.
What are folks thoughts on this?
It’s basically an mturk model that pays out etherium to python coders.
Im skeptical about
1. Cryptocurrency payment for work, I don’t know enough about crypto to trust it’s use as payment?
2. Payment for open-source work: on one hand, i support workers getting paid for their work, BUT (imo) the coolest part of open source is that it’s one of the few environments where people work for the works sake, not for $$.
I had a bigger list but it left my brain as I was typing, so what do y’all think?3
I feel like premium content should be available via paid (ad-free), free (ads), or through web user small scale crypto mining, at the users discretion obviously.
I don't get why we have to have these ad blockers and ad creators trying to one up each other. The *option* for low-performance crypto mining while on the page would be cool to have as a choice.3
So I finally released my first app on the play store. Well actually it's more of a widget to keep track of stock prices, exchange rates, crypto etc.
Would really appreciate some feedback or suggestions.
Decided to spend more time on LinkedIn to familiarise myself and start looking for potential employment opportunities.
For past month or so, I've seen few decent opportunities, which is a nice start. However, for every decent post, I've come across:
- About a hundred of posts by self-proclaimed crypto experts who spout absolute gibberish and somehow get thousands of likes. 5 min google search and absolute minimum knowledge of economic theory discards 99% of their claims and statements
- Handful of idiotic "career advice" blog posts
- Numerous posts, both bashing and helplessly supporting shitty recruiter practices
- more crypto nonsense
- People jerking themselves off for running a profitable business (company launched a 1-5months ago)
Really starting to hate the platform, seems like all the integrity it had before becoming fully mainstream, has gone down the drain and it's become a straight up corporate circle jerk1
Recently we started to encrypt all our PHP code.
To hide the code that we use to unauthorized people.
A new intern deleted ALL the encrypted and uncrypted files from all the servers (Also our backup server) saying
"I thought it was a Cryptolocker".
Now I can fucking start to find it all back and maybe even recreate our system and fucking crypt everything again.6
You guys believe in crypto currency in a near future to play a major role in our lives? Which one(s) you have?13
Community that link between experts and new traders to exchange signals in the crypto-currency trading world3
I don’t give a fuck about crypto currency, bitcoin and all the shit. I don’t even want to know how it works.
I’m an arrogant or dumb ??
Disclaimer: This is all theoretical. Neither me nor my friend (with whom I discussed this) are stupid enough to even try to pursue this, but as an idea, i believe it might generate cool/new ideas/ways for handling secure communications across social groups.
Let's do some role play. Let's design a delivery app for drug dealers, think Seamless or Uber Eats, but for drugs. Not for big deliveries, like kilograms of coke, but smaller stuff. Maybe a few grams of it or something. The clients could rate dealers, and vide-versa. This would build a level of trust within the system. There would be no names, just anonymous reviews, ratings, and prices. Only the info you'd need to know.
The biggest (only?) problem we found (besides legality) was that, how would you prove that you're a client and not a snitch (or cop). This would have to somehow be handled both on signup, as well as when ordering (let's imagine that all who are clients are pure and won't ever snitch).
One of the ways we found to combat this was to have the app invite-only. This would, in theory, do away with the problem of having snitches signing up. However, what if the phone got stolen/breached by a snitch, and they also got full access to the account. One way we thought we could combat this would be with a "dispose number" or something similar. Basically, you call a number, or send a text, or message a Signal bot etc, which would lead to the account's instant termination, no traces of that user left. Hence, a dispose number.
The flow of the app would be as follows:
A client wants some amount of heroin. He opens the app, searches for a dealer, sends the him the desired amount, and in return gets back a price from the dealer. If both parties agree on the amount and price, the deal would start.
The app would then select a random time (taken from the client's selected timeframe and the dealer's "open" time) and a location (within a certain radius of both them, somewhere in between them both for convenience). If both of them accept the time and place, they'll have to meet up at said time and place.
The actual delivery could also be done using two dead drops - the client drops the money at one of them, the dealer drops the goods at the other one. Yes, this might be subject to abuse, but it wouldn't be that bad. I doubt that clients would make huge orders to unknown/badly rated dealers, as well as dealers accepting offers from badly rated clients. My idea is that they would start small, just so if they do lose their money/goods, the actual loss wouldn't be as big for them, but for the other party, having bad ratings would mean less clients willing to buy or dealers willing to sell.
A third way would be to use crypto, but the reason I left this as the last one is because it's not that wide-spread yet, at least not in local drug dealing. With this method, the client would initiate the order, the crypto would be sent to either the dealer or an escrow account, the dealer would then drop the goods at a random place and let the client know where to go to get them. After the client has gotten the goods, they could both review/rate the quality as well as the overall experience with that dealer, which would either make or break the dealer's upcoming deals. This would be pretty much like other DNM's, but on a local scale, making deliveries faster.
So far, this would seem like something that would work. Are there any ideas that might improve this? Anything that might make things more secure/anonymous?
My reason for this post is to spark a conversation about security and anonymity, not to endorse drugs or other illegal stuff.
PS. Really loving the new PC design of devRant14
Where to begin learning about blockchain? (Google searches return way too much information.)
This has been in the back of my head for years now. And with all the attention that crypto currency has been getting lately, reminded me to look into this again.
Note: I don't actually care for cryto currencies, I'm just really curious about blockchain technology.4
!dev, crypto related.
Crypto is a fucking cancerous community at the moment, where everyone thinks that he will get rich overnight or just by scratching his balls in front of his pc, full of pseudo traders that shill coins here and there, talk like they were Jesus and X currency was a religion.
People that have no sense of criticism, that invest in thing they don’t understand and all this “coins rivalries“ look more like a fucking competition between brotherhoods in college than sane competition between companies.
That said, people still understand cryptocurrencies as investment assets when they should be user as what they’re called: currencies (some exceptions apply, I.e. ICOs)
Still nobody at this price would use them to buy goods and services because “it should be worth XY” and that just to reconvert them to fiat.
On the top of that, Bitcoin was born to be anti banks, anti governments, anti 3rd party trust and of course this kind of freedom has been already suppressed.
And now the exact reverse concept appears: without government trust people won’t use them because they choose to be “legal” instead of free to do what they want by following a proper ethics (don’t buy drugs kids).
Finally, SEC pushing the decision about ETF has made people scary instead of confident because it’s the same kind of people that want to be rich overnight and didn’t think that pushing the deadline for decision is a good thing as that means that they really want to take in consideration what they’re doing and want to do things the right way. That said it still kills concept of no 3rd party.
At least the dumb money has got out, and well maybe see smart people get in.4
Ruby blockchain update: V 0.0.1 Alpha is available for testing!
If anyone wants to check out what we've done, or wants to contribute, check it out here: https://github.com/alexdovzhanyn/...13
Entire Bitcoin market is going down. Any thoughts?
Just curious to know what the devs think about BTCs. I've started trading recently and I'm still positive it'll go up. I haven't invested much so even if the marker crashes, it won't have a really big impact on my life.23
Crypto! I've always thought of crypto as some complicated black box! How does it work, but then I did the cryptopals challenge and learned to exploit cryptography. What to do with this new found knowledge? Write new libraries and ransomware of course! So I present two projects that taught me a lot!
Pydhe, possibly the first(!!!) Open source diffie Hellman library for python. (Yea I know openssl, but they don't let you do diffie hellman without TLS. I do!) https://github.com/deadPix3l/pyDHE
And Cryptsky! One of the first ever fully python, opensource ransomware! (Again caveat, most open source python ransomware isn't truely licensed as OSS or uses some lower functions written in C)
Users complain about advertising and how it is annoying to have to see these ads just around the page while they just want to see the main content. So what do they do? They decide to use adblockers which start pushing web admins to find another method to make money. So half the time they offer the service for a lot more than normal which makes people not want to pay for it. So now I decide to push into the embedded crypto miners, which sadly cut in half my earnings but it’s so I can still make something and then people start to complain about this even though it doesn’t bother them in anyway
WHAT DO YOU PEOPLE WANT6
I'm most excited about Smart Contracts & Distributed Applications.
In early January I started learning Solidity thinking it would be super difficult but was pleasantly surprised when I'd completed my first DApp in a couple days. Two months on and I've finished 3 major projects and launched my own Udemy course.
I'm not a big follower of Crypto Currencies at all and haven't become financially invested in anything really. I just love the way development works on a blockchain; it is quite interesting and It feels really fresh solving problems using code that will become immutable.
How much of fairness can human factor add to a government compared to foolproof AI algorithm. Is it too early or too utopiaic to trust AI with governance compared to agenda based corporate embracing environment destructing corrupt to the core politicians. Is AI more evil than today's politicians. Is there a project already similar to crypto currency on governance. On seeing all butt heads in power and in age where whistle blowers are caged I feel helpless tothink software cannot change the most primal thing - politics. Switching on TV and watching news had never been this disgusting. Flushing these thoughts , came back to my desk to learn something better and be at peace with programming.4
I want an rx580 for my new pc build, but all of them are sold out...
Damn cryptominers, now I'm realy pissed!! 😠
Does anyone else here think the regulating and centralising of crypto currencies and tokens worrying?
It is slowly being bent to the will of the higher ups just like traditional fiat and they’re burying its fundamental altruistic design concept without providing and means for it to be assimilated into benefiting the daily lives of the masses an especially the unbanked.5
Today I discovered trial and error driven development for myself:
Me, reading spec..
Spec: „Do something with an CSR“ (not the exact wording :D)
So instead of just googling C# + CSR and copying the code examples,
I went like:
What means CSR -> Certificate (Something Something)
-> could be this namespace (Something with „Crypto...“ in its name)
-> could be this class (Something with „Certificate“ in its name)
-> take the easiest overload (string is always nice)
-> try filling in the parameters from the spec
-> start debugger and inspect properties
-> repeat if necessary
I don’t know if this is the correct pattern to proceed my project with...
But hey, today it worked and now I also know, what „distinguished“ means
“In 10 years of political reporting I’ve met a lot of intense, oddly dressed people with very specific ideas about what the perfect world would look like... but none quite so strange as the ideological soup of starry-eyed techno-utopians and sketchy-ass crypto-grifters on the 2018 CoinsBank Blockchain Cruise.”
This is such a good and funny article
Can't focus on work because Ethereum and litecoin are on the rise. Dreaming of driving lambos on the moon 😅
How would you guys feel if your favorite app gave you 3 monetization options.
Crypto Mining at max 70% load
Giving you 100% privacy.
Ads, rip privacy, rip cpu.
Paid content /micro transactions
Rip wallet , some privacy concerns, happy cpu.
I need some advice guys. I want to start investing in crypto currency. My question is where can I buy/sell, and which is the best website to keep an eye on prices? Do you use any kind of app for it?1
Anyone messed around with Crypto Kitties? It looks amazingly interesting. Nerdy Block chain meets cute collections.
Since this is such a cool community with so many app devs, I though it would be cool to share with you all a project the company I work with its currently developing.
The name is appcoins, and it's a blockchain project that aims to solve 3 big problems that devs, users, Appstores and oems face everyday in the current apps ecosystem:
- the advertising: create a trustworthy advertise system for your apps, where you can actually invest money that will be spent on users that will use your apps; currently is a system where everyone is trying to fool everyone.
- Malware and Adware detection: create a system powered by the community to rank dev's apps, using a reputation system, and dispute by bidding. currently it's an unscalable system, with many detection flaws.
- In app billing (aka IAB): offer a new and easy way for users to buy cool things in your app, even if they don't have access to a credit card or other payment methods. Users will be rewarded by trying out your cool apps. Also opens the door for payments with crypto currencies in AppStores.
This is just a quick overall idea of the all project. If you're interested, checkout the website https://appcoins.io/
If you've any question or suggestion, let me know and I'll try to answer as best as I can, or redirect to my devRant coworkers.
Any feedback you may have, feel free to share it! This system is designed for us all devs, so your input is really appreciated.
Thank you all, and sorry for the long post.
Hey ranters does anyone know the best way to learn crypto currency. Its a very challenging topic for me5
Is it better to implement a cryptpgraphic algo in a function or in a class? Also how?
I have a cryptography class and I really enjoy implementing the different techniques that we study in class. At first I was just implementing the techniques in a simple function with 3 parameters; key, message and a bool for encryption or decryption. But as they are getting more complex, it is becoming harder to continue implementing them in a single function block. So I thought of using a class but ran into the problem of how do I even do that? Do I make different methods for key generation, encrypting and decrypting?
P.S. It's really just for learning how the crypto technique works and not for anything serious.12
Cryptography and Network Security
Got the book ^ ^
Feel free to comment any cool book about security :)3
On page 19 of the ethereum yellow paper: http://gavwood.com/paper.pdf it defines the address of a wallet as: A(pr) = Β[96...255](KEC(ECDSAPUBKEY(Pr))), which is the right most 160-bits of the Keccak hash of the public key generated by the private key.
If I expose the public key to the network, do I allow people to impersonate me and sign transactions even though they don't have Tr, Ts, or Tw? My understanding is no, that without those values you can't hash the transaction.
Subsequently, this leads me to wonder if the purpose of the address (besides identifying users) to obscure the public key so that the private key is at a less risk of being reversed? Or can the public key of any address be captured?
If the public key of any address can be identified on the network or off network (without actually being the owner of that key), how do you do that? Are there any resources on how to perform this that are computationally easy?2
Anyone in crypto mining?
Have a small question: why the fuck I am payed half of what I was expecting?!
I know the estimation is not accurate, but half of that or less?!?
(Estimation from the H/s)3
Anyone here from Europe????? :D
I just need a good bank here, with benefits, shoot me some best ones, also shoot me reference shits so you and I will have money :)!
If you want me to have some sort of crypto thing only, don't worry to shoot that on me too. I work for crypto company.9
Has anyone here ever went to a tech conference? I've never had a company send me to one. I think I'd like to attend one, even if I have to just fund the trip myself. I think I'd be interested in more than just CES, I'd probably enjoy the RSA crypto event, Google I/O, Android dev conf, etc.
so guys, I am going to ask you about something I am totally new on it.
what do you think about crypto currency mining? cam I do it using just my PC, if I can what is the estimate benefits?
do you advice me to proceed with this thing.15
Not really the place for this, I know. But I am a crypto coin guy. And I work with numerous coins. I was curious if anyone new of an app the could monitor all of your cryto-coin addresses and give you something of a portfolio value. I am capable of doing so manually but the prices flux a decent amount so it changes from day to day.6
Ticket: implement compression algorithm to crypto object x
Details: object to big, we must devise a way to compress it. A deflate algorithm should be added here, yada yada yada we did not have the time Yara yada...
Go see crypto provider's documentation... It has compression options... -_-
You lazy fucking stack overflow copy question dimwits!!! Jesus fucking Christ! This reached production like this shit, I've got clients complaining of the size of the payload because you are a bunch of lazy fucks who can't even read simple documentation!!!
I want to kill someone for wasting my time and patience... Don't call me for this kind of crap... I have better things to do!
I mean, the time it took you to write the ticket should suffice...
Launch braiven.io, been working on it for last few months.. it's honestly everything I have ever learn in my 5 years of coding...I'm ashamed that I don't have a start-up yet and I can't get a decent salaried job since I don't qualify for most of them... But I can get a site up and I'm fullstack . So by week 200 braiven.io should be running like magic1
Why isn't Monero popular than Bitcoin, its practically the BEST crypto currency ever build, Satoshi Nakamoto did a great job, but come on!
Monero is factually EPIC!3
Hey DevRant fam :-) hope everyone is doing very well wherever you may be!, i'm currently on my uni break for roughly 3 or so weeks which is fabulous, now i do not have much experience with finance or crypto-currencies!, but i'd like to do something a bit different.
This is something i'd hope to put onto my portfolio, so my idea is something on the lines of a stock market simulator BUT with Crypto currencies, i've been asking people around uni but no help unfortunately!.
So its very similar to a stock market simulator app if you look at things like "Investopedia Stock market simulator" its very much the same concept. The user has x amount of USD or AUD (as an example) and they can buy BTC or Ripple and it either goes up in price or down :-).
So guys that's something id like to create :D i definitely know its difficult and i'm not so sure on how to start :-). If its possible to get some advice on how to start i'd greatly appreciate it!.
Hope you have a wonderful day/night where-ever you are!
(I apologize for rambling on)
I programmed a "crypographic" tool in python as my first application. It calculated the checksum of the entered password and preformed this cesa-shift-crappy-crypto thing. It was named crypto_mario and as I wasn't able to implement the decryption in the same application, I wrote a second one for that task, called crypto_wario
Fuck you Linux! I thought user password validation would be a piece of cake, like bash one liner. How wrong could I be!
Yeah, it's already ugly to grep hash and salt from /etc/shadow, but I could accept that. But then give me a friggin' tool to generate the hash. And of course the distro I chose has the wrong makepswd, OpenSSL is too old to have the new SHA-512 built in, as it should be a minimal installation I don't want to use perl or python...
And the stupid crypto function that would do me the job is even included in glibc. So it's only one line of C-code to give me all I want, but there is no package that would provide me this dull binary? Instead I will have to compile it myself and then again remove the compiler to keep image small?9
This is neat https://twitter.com/atlasobscura/... take a picture of bunch of lava lamps, make that bit array your entropy for crypto.1
# This isn't THAT bad, but since I never had any collab before this one, this is the worst so far
I'm in a web development school where we need to do a yearly project. At the beginning, we started with the idea of doing an online wallet that would handle crypto-currencied (#blockchains), and other currencies too.
On the paper that sounds good, but the dude decided to create a NodeJS server api, and let's be honest, this was a gas factory. I couldn't help him because he was too fast in his ideas, and the third member was a bit more useful because he was the one creating the mobile app, so all he needed was an url that the dude couln't manage to create.
After a few weeks he started over the project, then over again a few weeks later, before coming to us and saying it was too difficult. We said "yeah, I mean you're own your own since the beginning, no wonders!" "Uh do you guys care if we change the whole project to do something else? Like a CV library"
Went a moment where he tried to over sell some incredible (read "overly common") features that already existed 10 years ago on some famous websites (ie. Monster), and he then eventually told me that this idea came from his new job, and that they needed this library. So we would have to work for his company for free. Nice.
The third guy and me came with a new idea (image recognition with IA and stuff), and we saw the dude maybe 5 times the whole week while we're supposed to work together
Well, how i can start...
[Inspired on CipherSaber]
I wanna disguise arcfour as a game (board or virtual), give it for free to kids, and someday tell them the goverment has banned the game because it's basically undistingable from arcfour, and then i'll try to explain for them the crypto controversy, and i know i did my work well if at least one of them decides to write a letter to the goverment.
I mean, i clearly know this is so frigged up, but i wanna know if it could actually work.
Guys check out IOTA, get a light node wallet and buy some as long as it is still low. It is rising at a rising rate since some hours now.
IOTA is the solution to bitcoins speed and scalability problems. IOTA does not use the blockchain but instead a network called the tangle, which enables decentralized peer-to-peer transactions. There are no miners, no fees and the transaction validation speed depends on how many people are using the currency. One transaction requires your device to validate 2 other transactions through proof of work and therefore the system can never be overloaded by too many transaction requests.
Be warned though, the IOTA foundation is only currently building up the infrastructure, and people are just starting to trade since a few weeks so trasactions still may take a few hours.4
I guess it has to be keybase. Keybase chat is now my go-to web based chat.
Using NaCl keys makes life so much easier but you have the choice of using PGP if you need to for encrypting files/text.1
Is there an encryption/decryption algorithm that's guaranteed to have an output of less than 100 chars? Say to encrypt messages less than 50 chars in length5
Investing in crypto currency has become my new weird obsession.
I'm now drunk and analysing the stats of dogecoin. My child self would be so disappointed.2
Been learning more about crypto and blockchain (i know i know buzzword) but I mean I'm still a noob at pretty much everything so it was hard to find something that explains all that at a really technical level. BUT I then found www.cryptoeconomics.study
and it's been going great 😊
I have to Select my Bachelor thesis/topic in the next few days. I would like to do something with Crypto Currencies especially with the Blockchain System. There is a wide range of usage for that and i Think it could be very interesting.
The Problem is that am Not Really Sure what Topic or challenge my Project could contain. There is much to say about it but i dont Think it would be enough to just describe it.
There should be a Problem or anything like that I can solve..
Or Is it possible to just Analyse the blockchain and the affect it have These Days and the Future?
I would appreciate a few ideas or suggestions :)
all this talk of australian crypto laws got me thinking. here's a hypothetical (this might get a little complicated):
for the sake of the security facade, the government decides to not ban encryption outright. BUT they decide that all crypto will use the same key. therefore you can not directly read encrypted things, but it's not really encrypted anymore is it?
part two: there's a concept called chicken sexing, named after people who determine the sex of baby chicks. male chicks are pretty useless and expensive to keep alive, so they are eaten. female chicks go on to lay eggs, so ideally, from a financial standpoint, you only raise hens to maturity. this is nearly impossible to discern early on so at first you're just straight up guessing. is this one female? sure? that one? no? really 50/50. BUT if you have a skilled chicken sexer looking over your shoulder, saying right or wrong, then eventually you get better. why? nobody knows. they can't explain it. nobody can. you just sort of "know" when it's female or not. some people can do 1000s of chicks/hr with success up to 98% but nobody can explain how to tell them apart.
part three. final part:
after years, even decades of using this encryption with only one key, I wonder if people (even if only people who are regularly exposed to crypto like NSA analysts or cryptographers) can ever learn to understand it. in the same way as above. you don't know exactly what it says. or how you know it. you didn't run an algorithm in your head or decrypt it. but somehow you get the gist.
28464e294af01d1845bcd21 roughly translates to "just bought a PS5! WOOT!" or even just pick out details. PS5. excited. bought.
but how do you know that? idk. just do.
oh what a creepy future it has become.8
any open source web platform, for building a crypto community
built with nodejs+react will be very useful
Everyone's stressing and regretting not buying/investing in Bitcoin when it was hella cheap way back when and now it's even harder to join in with the whole bubble view.
Don't mind me and my Forex though. I'm sticking with the other traders of actual currencies.1
For the people investing in crypto: http://imgur.com/a/C32Taqt
A small reminder I made in IT class of course using the best programming language of all times about the best coin of all times.
Figured I'd share this in case anyones interested.
For those that are interested in investing the old fashion way (not getting rich quick off of crypto) Acorns is the first investing app I ever got into, used it for almost 3 years noe. Rounds up your change on digital purchases and invests it for you. Nice UI, makes it easy.
I'll drop an invite code down below if anyone is into investing since who doesn't like a free 5 bucks for using a specific link to sign up for something they're interested in? Just wish it wasn't US only.
I'm planning to do an app with some personal data for a small community (Verein). I want to save the data somehow encrypted so not all people can just access them. There will be just 4 persons who need to access this data. I'm think about PGP/GPG, with encrypting the data for these 4 people with their different keys, but I am not sure about that. So every person would have its own keypair. This is just the first idea. So if you have any hints/links on some ideas/blog posts how to do this or do it another way, I'd be glad about a comment. Thanks ;)
Tech stack: I'm planning to create a Webapp, using Python and Flask...
Ok this is either my code, socket.io or China. So I wrote DApp for my crypto project but for some reason our Chinese users have problems using it... So i dig through our code for HOURS! and finally resort to making an AJAX call from the client to a hideous PHP script for logging and what do i find?
For some reason the WebSocket cannot connect. I haven't mapped this so it's only conjecture but I think the GFW is blocking my users connections? (Also using a VPN seems to fix it)
Anyone else had this issue?1
Hi, guys check out this crypto converter app i created using ionic 3.
contribute and stars 😏