Cryptographic File Storage

Here's a bit of information on cryptographic storage.

This article at Security Focus has a nice intro and covers file encryption.

Here are some examples of so-called “volume encryptors”.

• PGPDisk
• Secure File System (SFS)
• Linux CryptoAPI
• ScramDisk

According to the above article, “Volume encryptors use the device driver layer to encrypt and decrypt information to and from a physical disk.”