Recent content by roland

I get your point. On the other hand, I have invested much time and effort into this proposal and the prototypes of this product. I believe the proposal would create a very valuable output for the Dash community for a development cost of $300k (your quote of $1M+ is incorrect here, because you...

Yes, that's right. And the second USB sticks gets plugged into the "unsafe, Internet-connected PC" every now and then (to save the unsigned transaction on it). So if you have malware on your Internet-connected PC, guess how "safe" your second USB stick still is. But I think we have gotten a...

Well, what you describe as "happen as a mistake" is the official and supposed way to use bitkey. I suppose you might wan t ot use bitkey in "high security" mode (let's forget about "medium security" mode here, because this mode means to run a full online browser within bitkey, which is not much...

NXP (formerly Freescale) KW41Z Bluetooth LE SoC series.

TroyDASH, thanks for your open words. I'd be somewhat disappointed if this is the majority opinion. Today, Dash is #6 in market cap. Don't we have the ambition to get to #1? Just waiting for the "big name companies" won't do the job. If big name companies will join this space, guess what crypto...

Yes we have done some research on this one. Probably you could make it slimmer by using different batteries, make other trade-offs in the go (less battery lifetime, frequent re-charging), ... But it'd still amount to "size of a second phone". Solutions that are credit card sized won't have the...

Yep, I know the coolwallet, and I know people like it for being thin. I don't like to say negative things about other products, and you won't hear anything bad about Trezor, Keepkey and the like because I really think they're good products. However with coolwallet, this is a seriously flawed...

I get the point. However I have to disappoint you - I still think it is impossible to formally verify a whole system like a hardware wallet. That's the reason why Trezor doesn't have it, Keepkey doesn't have it, and we also won't have it. Take a look at the paper you sent me, they claim it's a...

tungfa, thanks for your valuable input during the pre-proposal phase. Because of that, I created the "why do we need another hardware wallet? there are products ont the market already!" section in the proposal. Probably I can't change your mind, which is OK for me. Yes you are perfectly right...

For details on the status of the prototype, the planned features and also the open source plans, please have a look at the detailed proposal here: https://www.haenel.me/files/dash-wallet/proposal-the-dash-hardware-wallet.pdf In essence: the prototype that we have built is "just a piece of...

Hello demo, To the best of my knowledge, there is no way to "formally verify" a hardware design (i.e., schematic, layout/Gerber) as we have presented it here. Formal verification is something that you might apply on some abstraction layer to chip design (VHDL, Verilog). Hardware vendors use...

Dear all! Some of you might remember discussing on the pre-proposal of a Dash Hardware Wallet with me some time ago. I have taken all the feedback, seriously refined the proposal, split it into several phases, created a working hardware prototype, and now I'm happy that we have a budget...

Keep calm. As you might know, demos and prototypes require time and effort to make. I consider it good product design practice to get some opinion beforehand, and then take the chance to create a prototype that at least tries respect some of the feedback I got. Remember you were the first to...

1. Yes, this device can do both. For a first use case, I see the "just verify and sign a transaction" use case, just like any hardware wallet does today (only using Bluetooth here). This means the device works together with a wallet application on a smartphone, tablet or PC. But I have the clear...

Good point. So, we agree that the products currently in the market (Trezor, ...) are both too expensive and at the same time don't have the technical features (e.g. Bluetooth) to be really useful for at least one important use case. My proposal is: this situation means that there is the...