name: ORB
full_form: Object Request Broker (OMG)
context: Figure 4.2.2 shows several inter connected ORBs which can communicate with each other. IPSec provides a protected point to point transport connection. However should any unprotected transport allow an alien ORB onto the CORBA bus, the "protected " communications links will guard against an alien ORB, as it will share any inter-ORB communications via the IIOP protocol from any ORB which somehow gains access to the CORBA bus. Once access to the CORBA bus has been obtained, normal inter ORB communications will permit access to any connected ORB, even if there is a point to point IPSec connection to the "protected" ORB. Figure 4.2.2: TLS and ORB to ORB communication Risks For example ORB 3 uses an unprotected IP transport connection. Since ORB 3 can communicate to ORB 2, it can also use any of the "protected" ORBs 1,2, 4, 5 or 6. i.e. TLS needs to be used cautiously. In Summary, IPSEC is a cheap, and efficient manner of protecting point to point communications links. Care has to be taken
description: The Object Request Broker (ORB) is a protocol that enables communication between objects in a distributed system, specifically within the Common Object Request Broker Architecture (CORBA). It facilitates interactions between objects residing on different machines or networks.
explanation: The context describes ORB as a protocol enabling inter-object communication within CORBA. This definition aligns with the characteristics of a protocol, which governs the format and rules for data exchange.
section_title: 4.2.2Limitations of IP transport layer security
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