Investigative Data Mining for Security and Criminal Detection

A symbol or sequence of symbols (or electrical or mechanical correlates of symbols) applied to text in order to encrypt or decrypt.

The system of giving a piece of a key to each of a certain number of trustees such that the key can be recovered with the collaboration of all the trustees.

A specialized form of audit-trail software, or a specially designed device, that records every key struck by a user and every character of the response that the AIS returns to the user.