Netgear FVS114 User Manual download pdf (Page 202)

Reference Manual for the ProSafe VPN Firewall FVS114

2 Glossary

202-10098-01, April 2005

AES

AES stands for Advanced Encryption Standard. AES is a symmetric key encryption technique that will

replace the commonly used Data Encryption Standard (DES). Not only does AES provide more security

than DES and 3DES, it also has better performance, making AES highly attractive for use in constrained

environments.

It was the result of a worldwide call for submissions of encryption algorithms issued by the US

Government's National Institute of Standards and Technology (NIST) in 1997 and completed in 2000.

AES provides strong encryption and has been selected by NIST as a Federal Information Processing

Standard in November 2001 (FIPS-197). The U.S. Government (NSA) announced that AES is secure

enough to protect classified information up to the top secret level, which is the highest security level and

defined as information which would cause "exceptionally grave damage" to national security if disclosed to

the public.

The AES algorithm uses one of three cipher key strengths: a 128-, 192-, or 256-bit encryption key

(password). Each encryption key size causes the algorithm to behave slightly differently, so the increasing

key sizes not only offer a larger number of bits with which you can scramble the data, but also increase the

complexity of the cipher algorithm.

ARP

Address Resolution Protocol, a TCP/IP protocol used to convert an IP address into a physical address (called

a DLC address), such as an Ethernet address. A host wishing to obtain a physical address broadcasts an ARP

request onto the TCP/IP network. The host on the network that has the IP address in the request then replies

with its physical hardware address. There is also Reverse ARP (RARP) which can be used by a host to

discover its IP address. In this case, the host broadcasts its physical address and a RARP server replies with

the host's IP address.

Auto Uplink

technology (also called MDI/MDIX) eliminates the need to worry about crossover vs.

straight-through Ethernet cables. Auto Uplink

will accommodate either type of cable to make the right

connection.

Bandwidth

The information capacity, measured in bits per second, that a channel could transmit. Bandwidth examples

include 10 Mbps for Ethernet, 100 Mbps for Fast Ethernet, and 1000 Mbps (I Gbps) for Gigabit Ethernet.

Baud

The signaling rate of a line, that is, the number of transitions (voltage or frequency changes) made per

second. Also known as line speed.

1 2 ... 197 198 199 200 201 202 203 204 205 206 207 ... 211 212

No comments

Netgear FVS114 User Manual Page 202