RSA (Rivest-Shamir-Adleman)
Today's most heavily used public-key encryption system.  RSA algorithm is based on three inventors Rivest, Shamir, and Adleman at the beginning of letter naming, although they have invented this algorithm is the second team, but it is the first public access to patent the technology and people.
Public key encryption system is currently the only two parties to make in the safety of a way to share information, users do not have to worry about sending the password would be eavesdroppers to intercept the content of the two sides of the talks. Therefore, the public key encryption systems have become e-commerce and Virtual Private Network <VPN> operational base.
Public key (public-key) encryption system, in particular RSA, in e-commerce transactions are playing an increasingly important role. Many digital consumer products "such as video converter and smart card", now must be passed to receive RSA encrypted message.
Public key encryption systems are faced with a challenge that it requires a lot of processing resources, and even Gigabit-level desktop computers can not effectively addressed. For a variety of uses a slower processor, embedded systems, this problem is more serious. Consumers could not bear to digital video converter to exchange confidential information with the site, it should be interrupted long time. The intelligent access devices "such as smart cards or relevant reader" can not tolerate users who log permissions clearance time is too long. Therefore, RSA encryption and decryption speed of the wide variety of embedded devices, the increasing importance.

RSS Really Simple Syndication
Is a web page can be the latest headlines, content, or update the description that many users of technology. Many users are like some of the sites or community blog content, but because of these sources of content updates from time to time, or users have time to visit every day, while the e-paper has also caused much trouble, then the RSS will become a better choice.
RSS mode of operation is to create a content site on a regular basis to inform the list that contains the latest updated content, known as RSS feed, re-use programs called RSS aggregator to automatically crawl your site RSS feed. Users want to subscribe the content provided by each site need a reader (Reader), which alone RSS aggregator, and the current network can be found in a desktop RSS Reader can be divided into several, one does not require MS,. NET Framework runtime version 1.0, a need, there is a plug-in suite of other programs.

RSVP Resource Reservation Setup Protocol
A method used to set the router (ROUTER) ensure that one service (SERVICE) can obtain a fixed transmission rate (QOS) protocol (PROTOCOL),.

RTP Real-Time Transport Protocol
A kind of Internet (INTERNET) real (REAL-TIME) streaming (STREAMING) Data Control Protocol (PROTOCOL), the contents of the document by the RFC 1889 specification. RTSP using RTP as the underlying protocol.

Runtime Software
That occur during program execution.