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ISP
Short for Internet Service Provider. A company that provides connection and services on the Internet, such as remote dial-in
access, DSL connections and Web hosting services.
OSI
Short for Open System Interconnection, an ISO standard for worldwide communications that defines a networking framework
for implementing protocols in seven layers. Control is passed from one layer to the next, starting at the application layer in one
station, and proceeding to the bottom layer, over the channel to the next station and back up the hierarchy.
PIN
Short for Personal Identification Number. Typically PINs are assigned by financial institutes to validate the identity of a person
during a transaction.
RSA
A public-key encryption technology developed by RSA Data Security, Inc The acronym stands for Rivest, Shamir, and Adelman,
the inventors of the technique. The RSA algorithm is based on the fact that there is no efficient way to factor very large
numbers. Deducing an RSA key, therefore, requires an extraordinary amount of computer processing power and time.
SSL
Short for Secure Sockets Layer, a protocol developed by Netscape for transmitting private documents via the Internet. SSL
works by using a private key to encrypt data that’s transferred over the SSL connection.
SSL Handshake
SSL performs a negotiation between the two parties who are exchanging information, the negotiation process involves
understanding the key pairs, the protocols, and the type of data request.
TCP
Abbreviation of Transmission Control Protocol, and pronounced as separate letters. TCP is one of the main protocols in TCP/
IP networks. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange
streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which
they were sent.
UDP
Short for User Datagram Protocol, a connectionless protocol that, like TCP, runs on top of IP networks. Unlike TCP/IP, UDP/IP
provides very few error recovery services, offering instead a direct way to send and receive datagrams over an IP network. It’s
used primarily for broadcasting messages over a network.
Web
A system of Internet servers that support specially formatted documents. The documents are formatted in with HTML
(Hypertext Markup Language) that supports links to other documents, as well as graphics, audio, and video files.
Technology Primer: Secure Sockets Layer (SSL)
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