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

I

IAPP

Inter-Access Point Protocol. Protocol used by APs to communicate with one another.

IEEE

Institute for Electrical and Electronics Engineers. A professional organization that sets standards for telecommunications and computers.

impedance

The opposition to the flow of alternating current.

initialization vector

A value used with WEP security (or other stream-cipher implementation) to "initialize" or alter the RC4 key stream to ensure uniqueness. The IV is 24 bits in length in standard 802.11 WEP and 48 bits in WPA.

in-line

Power or signal passage through a device that is in series with the line.

ISA card

Industry Standard Architecture card. This card was the original form for PC expansion circuits such as modems, network adaptors, and other peripherals attached directly to the PC motherboard. It was based on a slow 8-bit architecture and migrated to a 16-bit architecture over time. The ISA card architecture has been replaced by the faster PCI bus architecture.

insertion loss

The loss in signal strength due to the insertion of a device in series with a signal path. Typically measured over the intended operating frequency range of the device.

interference

Unwanted communication noise that decreases the performance of a link or prevents a link from occurring.

intermodulation (intermod)

The distortion product of an amplifier caused by the interaction of different signal products within the amplifier.

IP address

Internet Protocol address. A 32-bit address assigned to host on an IP Internet. The IP address has a host component and a network component.

IPSec

Internet Protocol Security. A protocol defined by the Internet Engineering Task Force (IETF) that provides security via authentication and encryption over the Internet.

isotropic

A theoretical "isotrope" is a single point in free space that radiates energy equally in every direction.

isotropic antenna

A hypothetical antenna that radiates or receives energy equally in all directions. Used as a 0-dB gain reference in directivity calculation (gain). The isotropic antenna provides a convenient reference for expressing the directive properties of actual antennas. This is the standard by which gain from other antennas are measured against.