Subject: Wireless Technology

Topic: Security Issues in Wireless System

Difficulty: Low

The security issues can be categorized as:

Authentication: Authentication of messages is fundamental for the different applications, preventing an attacker from cloning a node or extracting password information to send malware to the network.

Integrity: This is the property that aims to keep the data free from unauthorized modifications. Integrity consists in keeping the accuracy of the information exactly as it was generated, without it being manipulated or altered by unauthorized persons or processes. Data Authentication can also provide Data Integrity.

Confidentiality: Data confidentiality refers to protection of the data as well as of the information exchanged between an emitting node and one or more addresses from third parties. Guaranteeing it requires a mechanism for communication enciphering and occultation.

Availability: It encompasses the access to the information and to the systems by authorized persons at the time when they need it.

Data Refreshing: Data refreshing implies that the data are up-to-date therefore it is important to ensure that an adversary node has not replaced the current message by an old one.

Nonrepudiation: This service sends an acknowledgement to the sender after the recipient receives the message sent. It confirms that the message is not received by any unauthorized user who denies about sending/receiving the message.

Access Control: This service indicates that only the authorized users can access the network system making the access control intelligent and accurate for doing so. Authorized users should not be denied for access.