![]() So we actually determine on the server side if it's there, and if it's already there, we don't have to upload it again. ![]() : No, we do de-duplication on the server side. : So if I upload a file and Marissa uploads the same file, do you store two different copies of that or one? : So it's encrypted all on the client side and you can't look at it on the server side? We use AES-256 hash, SHA-256 hashing for all the data. : We encrypt everything on the client side. : What do you do in terms of encryption or security? Here's the transcript of the relevant portion of the conversation. But his main explanation is that Bitcasa takes advantage of a technique called convergent encryption, which he explains towards the end before being cut off. To see how Bitcasa CEO Tony Gauda answered those questions, scroll to minute 11:48 of the videoĪt the bottom of the post. ![]() Like you, he wanted to know how Bitcasa's encryption worked. As an angel investor and startup advisor, Hadi's portfolio includes Facebook Hadi Partovi was on the founding teams of Tellme For those of you with interest in deeper technical details, here they are (well, it's a start, at least…).Īs a finalist, Bitcasa got drilled by knowledgeable judges including Ron Conway, Hadi Partovi, Marissa Mayer, Roelof Botha, Matthew Cohler and Arrington. While we raised a few general questions (does it slow you down?, will it scale?), it's hard to review something without going hands-on. For that matter, describing the way the technology works was perhaps overly simplified. Of the startup was generally positive because, by all descriptions, it's doing something innovative and new. VC firm Andreessen Horowitz, along with First Round Capital, Pelion Venture Partners, and TechCrunch founder Michael Arrington's CrunchFund have invested $1.3 million in the technology, which seems to suggest there's valuable IP behind the startup's overly broad promises of cheap, infinite and secure storage. When it claimed to be able to provide "infinite storage." How does it do that? It can't do what it promises! That's not how encryption works! And so on. , a new cloud storage provider, was met with a healthy dose of skepticism last week
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