21–30 of 356 posts
Wow, this will certainly give Coin ( https://onlycoin.com/ ) a run for their money.
They say this supports chip-and-PIN, but I don't believe them until they explain how. If I have a chip-and-PIN card from my bank, the chip has an unreadable secret used to generate one-time cryptograms to verify the authenticity of the card. There's no way to get that secret onto my Plastc card. You'd need partnerships with banks to get a new secret the way Apple Pay does. Without those, this sounds like it'll be use…
The only way I could imagine it would work is if you have the support of the bank that issued the card. However, I doubt any bank would agree to a scheme to allow a 3rd party to generate a clone of an EMV card.
Product description describes remotely wiping from your mobile phone ... How do they propose doing that ?
They say this supports chip-and-PIN, but I don't believe them until they explain how. If I have a chip-and-PIN card from my bank, the chip has an unreadable secret used to generate one-time cryptograms to verify the authenticity of the card. There's no way to get that secret onto my Plastc card. You'd need partnerships with banks to get a new secret the way Apple Pay does. Without those, this sounds like it'll be use…
On the bottom of their wallet tab [1], they list several participating banks, so it sounds like they might have those partnerships you mention. [1] https://www.plastc.com/wallet
Banks generally hate anything that takes away their branding. Less sleek of this -- i.e. reprogrammable Visa cards -- have been around for a few years but banks never supported them, again because of branding.
It's easy to throw up a list of tech specs on a website, it's a lot harder to actually ship those features. I'm highly skeptical of their support for chip-and-pin. In my (uneducated on this matter) mind it seems like the ability to do this undermines a large security consideration with chip-and-pin. What's to stop a crook from swiping my card on his reader? Does this not just make it all the easier to clone cards?
Also the battery life is an annoyance. Not one that I couldn't live with (I look at my Pebble and Pulse battery levels every few days to determine if I need to plug it up at night) but Coin's approach to this problem seems cleaner. Coin was a reach for me, this is way out of what I would spend to "fix" this problem. Also as other's have said with Apple Pay entering the fray Coin is rapidly losing its appeal as neither Coin nor this card offer the consumer protection that Apple Pay does (like not giving them your real CC number).
Earlier quoted context omitted.
Important difference: Plastic supports Chip & Pin, Coin does not. Plastic: https://www.plastc.com/card#tech-specs Coin: https://onlycoin.com/support/faq/#security
Plastc also supports NFC
Here are my reasons:
NFC + EMV secure elements are issued by banks and can't be reprogrammed. You can't switch between them on the fly. You can only house "multiple" EMVs if you can by some grace of god magic convince the different banks, and Amex to take your card to their facility and program it with their secure info and then give it back to you.
E-ink displays are WAY thicker than they can fit in there. They are also made on GLASS substrate, much more fragile than something you want to put in your pocket. If you looks closely at the video the e-ink screen is faked by CGI. It doesn't perfectly register in the same location on every frame. There is a shake.
Driving an e-ink display requires high bias voltage, ~+/-20V. Often done via charge pumps with chips such as TI's TPS65180 (http://www.ti.com/product/tps65180). The chip alone (minus PCB) is thicker than a credit card and therefore a credit card slot. The switching capacitors you'd need to generate the voltage would also be too big to fit within that footprint.