SEMAPHOR SPIDEROAK SECURITY AUDIT FULL
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If we want to end mass surveillance, the only way this can happen is through viral adoption of end to end encrypted products and services. When I'm speaking with a technologist about how SpiderOak products work, I would typically use the phrase end to end encryption. It's important to recognize that cryptographers already understand encryption and the terminology is intended for everyday folks. in short we know nothing about your data except how much you store.' We started using the phrase Zero Knowledge as a headline to this long explanation. In 2007 we found ourselves frequently explaining 'we don't know the names of your files, the names of your folders, the date they were created or last modified or accessed, their size, their checksums or hashes. Lately there's a new phrase 'customer managed keys' used by cloud providers, which sounds really great, but is typically just elaborate hand waving that ultimately allows the vendor and their staff the same level of data access as if it were not encrypted. Recently Slack made the unbelievable claim on Twitter that their service includes end to end encryption (it doesn't.) Perhaps they mean from your end to their end? SpiderOak customers had benefited from the impossible for years. In response to customer requests on one of their forums, Mozy explained why it would be 'impossible' for a storage service to protect users' privacy by encrypting the file and folder names customers store in a way Mozy could not read.

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The deception had been so effective that leading software engineers were shocked to discover Dropbox had full access to the data they had stored online.

In 2009 when Dropbox launched, they made misleading claims about the encryption of customer files and their internal ability to access customer's data or provide that data to 3rd parties, leading to a well publicized FTC deceptive trade practices complaint. Even the most credible journalists writing for well funded publications with fact checking budgets were fooled and repeated these misleading claims to end users. Each claimed that customer data was fully encrypted. The competitors were companies like Xdrive, Mozy, Carbonite and SugarSync.

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SpiderOak launched a online backup product for Linux, Mac, and Windows in 2007.

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Vendors often exploit the inaccessibility of these topics to make a series of statements that, while often factually correct individually, together create a false sense of privacy.

This vocabulary is foreign to most folks. in motion, and then most importantly evaluate key management and access. Doing so would require discrimination between transport encryption, data encryption, meta data encryption, encryption at rest vs.

Maybe it doesn't mean what we think it means? SpiderOak was one of the first companies to use this phrase commercially and the need has only grown stronger.Īt the heart of the issue is the difficulty for end users to decipher the terms cloud vendors use to describe their security. The encrypted data becomes unverifiable by network nodes.Ī few cryptographers have noticed SpiderOak's marketing term Zero Knowledge is inconsistent with the academic definition. This is because the nodes in the network can’t determine whether the sender really had that money or whether they previously sent it to someone else, or never had it in the first place. A block chain that encrypts transaction data (making it private) and lacks zero-knowledge proofs also lacks the assurance that all the transactions are valid. The property of allowing both verifiability and privacy of data makes for a strong use case in all kinds of transactions, and we’re integrating this concept into a block chain for encrypting the sender address, the recipient address, and the amount. > Zero knowledge proofs are a scientific breakthrough in the field of cryptography: they allow you to prove knowledge of some facts about hidden information without revealing that information. Z.cash is a zero knowledge system and has a good definition of it on its FAQ: > In cryptography, a zero-knowledge proof or zero-knowledge protocol is a method by which one party (the prover) can prove to another party (the verifier) that a given statement is true, without conveying any information apart from the fact that the statement is indeed true. In cryptography, 'zero knowledge' means something very different than 'service providers cannot access cleartext data'.

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