Glossary of Terms
Glossary of Terms
401
A
ADSL Modem
A device connecting a computer to the
Internet via an existing phone line.
ADSL (Asymmetric Digital Subscriber
Line) modems offer a high-speed
'always-on' connection.
C
CA
The Certificate Authority (CA) issues
certificates to entities such as gateways,
users, or computers. The entity later
uses the certificate to identify itself and
provide verifiable information. For
instance, the certificate includes the
Distinguished Name (DN) (identifying
information) of the entity, as well as the
public key (information about itself),
and possibly the IP address.
After two entities exchange and validate
each other's certificates, they can begin
encrypting information between
themselves using the public keys in the
certificates.
Cable Modem
A device connecting a computer to the
Internet via the cable television
network. Cable modems offer a high-
speed 'always-on' connection.
Certificate Authority
The Certificate Authority (CA) issues
certificates to entities such as gateways,
users, or computers. The entity later
uses the certificate to identify itself and
provide verifiable information. For
instance, the certificate includes the
Distinguished Name (DN) (identifying
information) of the entity, as well as the
public key (information about itself),
and possibly the IP address.
After two entities exchange and validate
each other's certificates, they can begin
encrypting information between
themselves using the public keys in the
certificates.
Cracking
An activity in which someone breaks
into someone else's computer system,
bypasses passwords or licenses in
computer programs; or in other ways
intentionally breaches computer
security. The end result is that whatever
resides on the computer can be viewed
and sensitive data can be stolen without
anyone knowing about it. Sometimes,
tiny programs are 'planted' on the
computer that are designed to watch out
for, seize and then transmit to another
computer, specific types of data.
Glossary of Terms
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