WiFoo..The.Secrets.of.Wireless.Hacking [Electronic resources] نسخه متنی

E

EAP

Extensible Authentication Protocol. A mechanism for encapsulation of authentication credentials within a PPP-formatted frame. 802.1x uses a special format of EAP (EAPOL, or EAP over LAN) to send EAP authentication messages within Ethernet-type frames between an authenticator (for example, an AP) and a RADIUS server.

EAP-TLS

An EAP type defined by IETF (RFC 2284) that uses client and server digital certificates to authenticate users.

EIRP

Effective Isotropic Radiated Power. A term for expression of the performance of an antenna in a given direction (main lobe of the transmitter antenna) relative to the performance of a theoretical (isotropic) antenna; it is expressed in dBm. EIRP is calculated by adding the sum of the antenna gain (in dBi) plus the power (in dBm) into that antenna minus any loss (attenuation) caused by antenna cable, connectors, and so on.

electromagnetic spectrum

The full range of electromagnetic (same as magnetic) frequencies, a subset of which is used in commercial RF systems.

down tilt.

EMI/RFI

electromagnetic interference/radio frequency interference. Broad spectrum noise or interfering signals.

encryption

Modification of a bit stream so that it appears random. Encryption is used for security purposes. The sender and receiver must both use the same encryption method.

ERP

Effective Radiated Power. The product of the transmitter peak envelope power, expressed in watts, delivered to the antenna, and the relative gain of the antenna over that of a half-wave dipole antenna.

Ethernet

Ethernet is a type of wired network that supports high-speed communications among devices over a specified cable.

ETSI

European Telecommunications Standards Institute. The standards body responsible for regulating telecommunications. The role of ETSI is develop technical standards aimed at achieving a large unified European telecommunications market.