drazvan

6 ms·

1.
The Future of Digital Cash Is Not on the Blockchain(wired.com)
10 points by drazvan 4y ago|2 comments
2.
by drazvan 5y ago
It's actually quite simple - an offline solution is technically incapable of reporting your spending patterns because ... well ... it doesn't connect to any network. It's the same as physical cash really, your banknote cannot
3.
by drazvan 5y ago
The fact that it's technically possible doesn't mean the banks will enforce it. The reverse is also true, if we do not offer the flexibility, someone else will (since it is technically feasible). However, most of the central banks
4.
by drazvan 5y ago
We do - https://www.whisper.cash/whispercash.pdf . WhisperCash is completely P2P and offline and bank policies are enforced by an on-card component (the "policy enforcer") that can require certain transactions to
5.
by drazvan 5y ago
Ah, those were the days... few people really cared about web security back then and Perl allowed you to get really creative :). https://seclists.org/bugtraq/1997/Jun/67 or my favorite https://insec
6.
by drazvan 6y ago
Applications for S20 ended on March 16th, haven't they? I wanted to apply but definitely could not travel, this change makes it interesting/possible again but I'm not sure it's not already too late to apply.
7.
by drazvan 7y ago
http://geola.com/ in Lithuania have a "hologram printing as a service" that works quite well, check them out.
8.
by drazvan 9y ago
What secure element chipset are you using? This could be very interesting for a project I am working on. Does it run JavaCard / GlobalPlatform and are the access keys available?
9.
by drazvan 9y ago
An old KickStarter-backed project that does the same thing is currently available at http://www.soundlazer.com/ . The physics behind it are explained at http://www.soundlazer.com/what-is-a-parametric-speaker
10.
by drazvan 9y ago
Sent an email, no reply yet, I guess you're flooded with applications.
11.
by drazvan 10y ago
http://www.leia3d.com for instance. I have one of their early dev kit displays and it's quite impressive (but very small).
12.
by drazvan 10y ago
On my wife's iPhone, it asked her to enter her password again and the weird thing is that it now shows as a new device, called "iPhone" instead of "Cristina's iPhone" as it was before. A few hours later it happ
13.
by drazvan 10y ago
I'm actually working on something based on this idea - I've created a SIM card for the Internet of Things - basically a smartcard (microSD form factor) that offers a persistent crypto-secure identity for Internet-connected objects
14.
by drazvan 10y ago
I've actually used the "attack" in the article to design a P2P Bitcoin exchange based on the idea of using someone else's contactless card (with permission) in exchange for Bitcoin. This would solve one of the big issues
15.
by drazvan 10y ago
I'm also in Romania, making about $95k/year. I'm running it through my company, an LLC (SRL in Romanian). Starting in 2016, you can classify yourself as a micro-enterprise if you make less than EUR 100k ($112k) and you pay 3%
16.
by drazvan 10y ago
BTW, the two major manufacturers they're talking about are NXP ( http://www.nxp.com/ ) and Infineon ( http://www.infineon.com/ ). STMicroelectonics ( http://www.st.com/ ) is also a player he
17.
by drazvan 10y ago
Feitian has a similar product with known keys and running JavaCard in the form of an USB token - http://www.ftsafe.com/product/epass/eJavaToken . Also much cheaper than the Yubikey, see http://javacardo
18.
by drazvan 11y ago
How is this different from let's say Swissbit ( http://www.swissbit.com/index.php?option=com_content&view=ar... ) or DeviceFidelity ( http://www.credense.com/ ) or GoTrust ( http://www.go-
19.
by drazvan 11y ago
What if they actually planned this and fine tuned their ASICs so that they would never be able to actually generate enough satoshis to go above the dust limit? They could tell their users: you've generated 1 satoshi this month, just 54
20.
by drazvan 12y ago
Well, the Opgal device has a resolution of 384 x 288 while the E4 lists 80x60. It's probably worth the asking price.
21.
by drazvan 12y ago
Like this? http://therm-app.com/
22.
by drazvan 12y ago
How about non-exit nodes. I'm actually working on an app (Bitcoin-related) that receives commands from satellite-connected devices (very low bandwidth) and then relays those over the Tor network to a processing server hosted by the use
23.
by drazvan 13y ago
Current price at $600 means people are speculating like crazy - it's not a measure of trust by any means, people are in it to make a quick (and easy) buck.
24.
Show HN: VisualBTC - Android-based offline wallet using animated QR codes(bitcointalk.org)
1 points by drazvan 13y ago|0 comments
25.
Show HN: A phone-based login system in just a few lines of JS
2 points by drazvan 13y ago|0 comments
26.
Show HN: VeriFi - A web service for asking questions(veri.fi)
1 points by drazvan 13y ago|0 comments
27.
by drazvan 13y ago
Yes, I'm sure. Your ID (not necessarily a passport) is still checked at the border of the Schengen space (at the entry point) but you don't need a passport or a visa of any kind. You just show your Romanian ID to the customs officer and the
28.
by drazvan 13y ago
Or maybe just add a "report an error" option. I've tested the countries I've visited recently and others have probably done the same, so if you see that your official information is contradicted by all (or many) of your users, you can raise
29.
by drazvan 13y ago
That is correct, work visas are restricted, tourist visas however are not required and I am not aware of any such requirement between any two EU member states. I haven't used my passport in years, I use my Romanian ID card whenever I travel
30.
by drazvan 13y ago
A quick rule of thumb for European Union member states: no visas are needed for any EU citizen to go any other EU country (as a tourist). It shows that I need a visa to go from Romania to the UK or Sweden (that is false, Romania, the UK and

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