Third-party file/content encryption

[klamerus]

Is anyone aware of any third-party products (open source or commercial) that will encrypt the files at rest managed by an Alfresco systems (any version)?  Even better can anyone recommend one they have seen used?

We're considering maybe Secure Island and recently have come across a product called iFinity.  I'm sure there are many others.  I'm not sure if there are any open source ones however (which we would be particularly interested in).

[klamerus]

Actually, I've just found that with Alfresco 5, there's finally been a recognition that the ability to encrypt repositories is a must for any serious document management product and Alfresco has followed suite to others in having this capability.  Hurray!