I C I C T 2004

Everyone has heard stories of laptops or PCs being lost or stolen and wonders whether it was the machine or the information that was lost. In larger computer systems, there are new vulnerabilities of sniffing, tampering or other active attacks to storage devices that have not been possible before. This tutorial provides background on the emerging area of "Encrypted Storage". It also addresses Existing Encryption Algorithms and their Modes, File Encryption (e.g. PGP, GPG, etc.), Volume Encryption, Existing Software Products, Open Source and OS Issues, Existing Hardware Products, PC Encryption, Laptop Encryption, Server Encryption, and Tape Encryption. We also highlight some of the subtle mistakes that are/have been made. The tutorial concludes with a summary of standards and future expectations.