Glossary of Terms 䡲 473
For these reasons some criminal and civil defense lawyers have challenged the expertise of
computer forensics practitioners in U.S. courts and have sought to exclude computer related
evidence claiming that computer forensics is a “Junk Science” and therefore cannot be relied
upon to produce accurate and reliable results.
Sometimes the junk science argument is referred to as the Daubert–Frye argument.
Key Drive: A small removable data storage device that uses fl ash memory and connects via a USB
port. Keydrives are also known as keychain drive, thumb drive, jump drive, USB fl ash drive. Can
be imaged and may contain residual data.
Key Expansion: Routine used to generate a series of Round Keys from the Cipher Key.
Keyst