Carlton Banks
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October 02, 2015, 09:09:12 PM |
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*ahem* Case comes with free global Internet access for the life of the device so you can use it to execute transactions all over the world. How "free", and how long do the manufacturers expect these things to last? There's some serious missing detail in that part of this particular deal. The company baked lifetime GSM access into the $200 cost. That just doesn't sound plausible to me. Maybe there's a way to make that practical, but it sounds like there's information missing still. It's a lot less bandwidth than the first generation kindles were giving away for free, for life. They use 1g or something like that, and only to sign transactions - I'm sure a good will is all they really need from cell phone companies. Maybe 1GB for the entire life of the device. I'd forgotten about those, but I did hear about that deal when Kindles were more trendy, and remember being skeptical about that too. Maybe it can be done... I just can't shake the feeling that you might end up with an expensive doorstop quicker than you bargained for. Any Kindle users out there that can add anything?
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Vires in numeris
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fryarminer (OP)
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October 02, 2015, 09:15:50 PM |
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*ahem* Case comes with free global Internet access for the life of the device so you can use it to execute transactions all over the world. How "free", and how long do the manufacturers expect these things to last? There's some serious missing detail in that part of this particular deal. The company baked lifetime GSM access into the $200 cost. That just doesn't sound plausible to me. Maybe there's a way to make that practical, but it sounds like there's information missing still. It's a lot less bandwidth than the first generation kindles were giving away for free, for life. They use 1g or something like that, and only to sign transactions - I'm sure a good will is all they really need from cell phone companies. Maybe 1GB for the entire life of the device. I'd forgotten about those, but I did hear about that deal when Kindles were more trendy, and remember being skeptical about that too. Maybe it can be done... I just can't shake the feeling that you might end up with an expensive doorstop quicker than you bargained for. Any Kindle users out there that can add anything? True, but between a Case and a Antminer, I'd say the Antminer will become a doorstop long before a Case will!
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P-Funk
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October 03, 2015, 01:26:24 AM |
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The website is so light on detail. I watched the video and it seems like it might be centralized. Bitcoins are held in a multisig address and they have 2/3 of the keys: their server plus the "vault"? Other doubts I have are the reliability of the print scanner and the security of GSM. I thought GSM has long been sniffable.
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Carlton Banks
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October 03, 2015, 01:30:55 AM |
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The website is so light on detail. I watched the video and it seems like it might be centralized. Bitcoins are held in a multisig address and they have 2/3 of the keys: their server plus the "vault"? Other doubts I have are the reliability of the print scanner and the security of GSM. I thought GSM has long been sniffable.
Nothing to suggest the code is available, or that the device is flash-able. So even those details are questionable; how can we determine whether the Case servers really have access to only 1 private key if the device is a black box?
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Vires in numeris
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BitcoinNewsMagazine
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October 03, 2015, 01:48:54 AM |
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From the FAQ at Case website: 1) The device generates a public-private key pair using a cryptographically secure random number generator during the initial setup. This key will never leave the device, and will never be known by our servers. Case does not ship with pre-generated keys. The hardware RNG is based on an analog circuit which generates continuous analog line noise to produce non-deterministic keys. 2) A second key is stored on our servers and transactions are only signed by the server key if the fingerprint scan is a match so this key is secured by a biometric factor. 3) During first time setup for the device, you can choose where you want your recovery key stored. The default option is to store it in a secure vault operated by Third Key Solutions. If you wish to store your own third key, you will be prompted during the setup flow to scan the public key of your recovery private key. If you do not like Case's design there is always Trezor.
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Q7
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October 03, 2015, 01:52:16 AM |
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Looks good but I just thought instead of only credit card payment they should also make available bitcoin payment option. Although I am currently satisfied with my trezor device but I will sure consider this on my future shopping list. The thing I like here is the shape which looks thin and should be able to fit in to my wallet.
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BitcoinNewsMagazine
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October 03, 2015, 02:06:59 AM |
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Stellaw blog already tore one apart. He mentioned it was about a quarter inch thick not something you slip in a wallet and put in your back pocket.
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JeWay
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October 03, 2015, 07:33:08 AM |
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Lucky you, this thing is awesome. This thing would be very useful for you, right?
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Carlton Banks
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October 03, 2015, 08:26:46 AM |
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From the FAQ at Case website: 1) The device generates a public-private key pair using a cryptographically secure random number generator during the initial setup. This key will never leave the device, and will never be known by our servers. Case does not ship with pre-generated keys. The hardware RNG is based on an analog circuit which generates continuous analog line noise to produce non-deterministic keys. 2) A second key is stored on our servers and transactions are only signed by the server key if the fingerprint scan is a match so this key is secured by a biometric factor. 3) During first time setup for the device, you can choose where you want your recovery key stored. The default option is to store it in a secure vault operated by Third Key Solutions. If you wish to store your own third key, you will be prompted during the setup flow to scan the public key of your recovery private key. If you do not like Case's design there is always Trezor. Yeah, that's essentially a bunch of promises. AFAIK right now, there's no way to prove any of the above without: - Source code
- The ability to compile the source code
- The ability to flash compiled binaries
Trezor (and I think Ledger) have these features, yet this supposedly luxury product (more expensive than the Trezor) does not.
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Vires in numeris
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remotemass
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ASMR El Salvador
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October 03, 2015, 10:05:16 AM |
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Seems good but I have one concern: What if the cloud service that possesses one of the 3 private keys conspires with the bank/vault that possess also one of the 3 private keys? They would then have two of the three required private keys and could decide to steal your coins, no? Maybe I am missing something here... Do we have to rely on the fact that the vault is safe and secure and audited and will not conspire with the case cloud services, being independent/separate from them?
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{ Imagine a sequence of bits generated from the first decimal place of the square roots of whole integers that are irrational numbers. If the decimal falls between 0 and 5, it's considered bit 0, and if it falls between 5 and 10, it's considered bit 1. This sequence from a simple integer count of contiguous irrationals and their logical decimal expansion of the first decimal place is called the 'main irrational stream.' Our goal is to design a physical and optical computing system system that can detect when this stream starts matching a specific pattern of a given size of bits. bitcointalk.org/index.php?topic=166760.0 } Satoshi did use a friend class in C++ and put a comment on the code saying: "This is why people hate C++".
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Possum577
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October 03, 2015, 11:25:14 PM |
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This is the most positive feature for me ---> " Case doesn't rely on your phone or computer for Internet access. It has built-in GSM with free unlimited transactions in over 100 countries!"
Me too! The features seem really good, but the casing itself looks a bit flimsy to me.
How can you tell that it's flimsy by looking at a picture on a computer? You can't. Seems like a great wallet, how long does the internal electronics last? The last thing I'd want to do is use it as a vault, put it away for ten years and come back to a blank screen...then I'd be f*cked!
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BitcoinNewsMagazine
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October 04, 2015, 12:14:02 AM |
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Seems good but I have one concern: What if the cloud service that possesses one of the 3 private keys conspires with the bank/vault that possess also one of the 3 private keys? They would then have two of the three required private keys and could decide to steal your coins, no? Maybe I am missing something here... Do we have to rely on the fact that the vault is safe and secure and audited and will not conspire with the case cloud services, being independent/separate from them?
If you allow the third key (recovery key) to be kept at Third Key Solutions then yes, you have to trust there will be no conspiracy. Your option during first time setup of your Case would be to store the third key yourself.
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