Some common security measures 7.16 The following are examples of some common security measures. One of the most common forms of security is the use of a password, for example, for individual users in a local network to restrict unauthorized use. A major problem is the use of passwords that are easy to guess or that are distributed widely. Encryption is designed to ensure that a message cannot be read by anyone but the authorised receiver and that the message was not modified while being transmitted. The encryption algorithm which is a mathematical function, determines the complexity of the transformation.
Complex encryption involves secret keys to provide long sequences of substitutions.
The secret key is often used to encrypt and decrypt the information. The OECD Council has approved a set of cryptographic guidelines which Australia is set to follow. Firewalls are usually separate computers that check information coming into a local network to verify that the communication is from an authorised source. The procedures governing the use of IT within courts and tribunals are normally prescribed in an IT security manual. Each court and tribunal needs mechanisms in place to ensure compliance with such measures.