HP UX Internet Express Software manual See also Https

Network News	See NNTP.
Transfer Protocol
newsgroup	A hierarchical subject category into which InterNetNews articles are organized.
NNTP	Network News Transfer Protocol. A protocol for the distribution, inquiry, retrieval, and posting
	of Usenet news articles over the Internet. NNTP is an ASCII text protocol that lets you connect to
	the server using telnet if you do not have a news reader program.
POP	Post Office Protocol. A protocol that allows single-user hosts to read electronic mail from a server.
port	A logical channel in a communications system.
private key	The part of the key in a public key system that is kept secret and is used only by its owner. This
	is the key used for decrypting messages and for making digital signatures. Compare with public
	key.
public key	The part of the key in a public key system that is distributed widely and is not kept secure. This
	is the key used for encryption (as opposed to decryption) or for verifying signatures. Compare
	with private key.
public key	Public key cryptography uses a key for encryption and a different key for decryption. Although
cryptography	the keys are related, it is not possible to calculate the decryption key from only the encryption
	key in any reasonable amount of computation time. In most practical systems, the public key
	system is used for encoding a session key which is used with a symmetric system to encode the
	actual data. RSA is an example of a public key algorithm.
RDN	See relative distinguished name.
relative	One or more attribute/value pairs stored on an LDAP server that uniquely identify an entry from
distinguished	its sibling in an object tree.
name
Resolver library	A BIND library that sends queries to one or more name servers and interprets the responses. See
	BIND.
secret key	Part of a symmetric cipher in which the same key is used for encryption and decryption. A secure
	method by which the sender and recipient can agree on the key, SSL encryption uses a secret-key
	nested within a public key and authenticated through certificates. Secret-key encryption provides
	faster access than public-key encryption alone. See also public key cryptology.
Secure Socket	See SSL.
Layer
Sendmail Mail	The BSD Mail Transport Agent supporting e-mail transport by means of TCP/IP using SMTP. See
Transport Agent	also BSD, SMTP.
session key	A key used for one message or set of messages. In a typical system, a random session key is
	generated for use with a symmetric algorithm to encode the bulk of the data. Only the session
	key is communicated using public key encryption. See also public key cryptology.
SHTTP	Secure Hypertext Transfer Protocol. Provides security at the document level rather than the
	connection level as provided by SSL. This protocol is not widely used.
	See also HTTPS.
SMTP	Simple Mail Transport Protocol. A protocol used to transfer electronic mail between computers,
	usually over the Internet. SMTP is a server-to-server protocol; other protocols are used to access
	messages.
SSL	Secure Socket Layer. A protocol developed by Netscape for encrypted transmission over TCP/IP
	networks. SSL sets up a secure end-to-end link over which HTTP or any other application protocol
	can operate. The most common application of SSL isHTTPS for SSL-encrypted HTTP.
TCP/IP	Transmission Control Protocol/Internet Protocol. Ethernet protocols incorporated into 4.2 BSD
	UNIX. While TCP and IP specify two protocols, the combined term is used to refer to the entire
	Department of Defense protocol suite, including telnet and FTP. See also FTP, LDAP, TELNET
	protocol.
TELNET Protocol	The Internet standard protocol for remote logins. UNIX BSD includes the telnet program, which
	uses the protocol, and acts as a terminal emulator for remote login sessions.

274 Glossary