What crypto mumbo jumbo is this? From: http://www.porticor.com/2012/02/thewhir-q-and-a/
---------------------- Lets’ define the challenge, first. Customers want to both have their cake and eat it: they want security and they want to enjoy the flexibility offered by modern clouds. Let’s demystify the terms “split key” and “homomorphic”. To understand “split key”, think about a bank safe that has two keys, one is held by the customer (call it the “master key”) and another is held by the banker. The advantage is that, if the master key is stolen, the banker will still protect your secrets; and yet the banker is unable to view the secrets in the safe since he does not have the master key. Bankers have been doing that for hundreds of years, only now we bring such an approach to the cloud with some cool technology. In business terms, this means that neither Porticor nor the cloud provider know the customer keys, leaving control in customer hands. “Homomorphic” capabilities will make this split-key approach even stronger. Homomorphic encryption allows keys themselves to be encrypted, and to be used and managed without ever having to decrypt them. This is attractive for cloud users – it guarantees their keys remain private in the cloud, unknown to cloud providers, security vendors and hackers. This patented approach is available for the first time as the Porticor Virtual Private Data system. ---------------------- Can somebody explain me how this so-called Homomorphic split-key encryption works? _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
