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ActiveX control

compiled computer program that can be refereded from within an HTML document

e-commerce

Businesss over a computer network

digital certificate

electronic attachment to a file that verifies the identity of its source

certificate authority

info to verify identities

B2C

Business-to-consumer

C2C

consumer-to-comsumer

B2b

Business-to-Business

B2G

Business-to-Government

Banner ad

Ad at the top of a web page

pop-up ad

ad in a separate window

click-through rate

number of times that site visitors click the ad

ad-blocking software

prevents ads from appearing

Spyware

gathers info

Mid

Ad-serving cokkie

created by clicking ads

clear GIF

1x1 pixel graphic on a web page

secure connection

encrypts the data transmitted between your computer and a web site

SSL

secure sockets layer

S-HTTP

Extenstion of HTTP that encypts text befor sent

Electronic wallet

Digital wallet

Person to person payment

P2P payment

Plaintext

cleartext

encryption

Plaintext into ciphertext

decryption

ciphertext to plaintext

cryptographic algorithm

procedure for encrypting or decrypting a message

cryptographic key

word, number, or phrase that must be known to encrypt or decrypt a message

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