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HTTPS in Java Add Code-128 in Java HTTPS

7.2 HTTPS using barcode printer for servlet control to generate, create code 128 image in servlet applications. ISSN HTTPS is not Code 128 Code Set B for Java a single protocol, rather it is the combination of HTTP over an SSL transport. Therefore, the properties of both HTTP and SSL are embodied in HTTPS. By including SSL, you gain the following three benefits: encryption, identification of parties, and session state.

SSL provides encryption using any one of a number of protocols. When SSL establishes a connection, it first negotiates which protocol to use. The result should be the strongest encryption algorithm that both ends support.

Of course, if one end supports only a weak encryption algorithm, then the resulting connection will be relatively insecure. For systems where the strength of encryption is important, you should validate that the algorithm chosen is acceptable. You can do this either programatically or by asking the user, but consider whether the users will all be capable of making an informed determination.

If a party involved in setting up an SSL connection has a certificate, then SSL can send this to the other party. This allows the other party to validate the identity of the other first party. This validation is not 100 percent certain, although the mathematical process of the validation is close.

The weaknesses arise mainly from human issues, such as a malicious third party having copied the private key of the certificate"s legitimate owner. Such issues are discussed in 5, Security. SSL connections are stateful, and because of this, HTTPS can support sessions without the security risks of URL rewriting or cookies.

However, because HTTPS arises directly from SSL, the connection startup is substantially slower. This is a direct result of the negotiation of protocols and cannot be avoided..

7.3 IIOP The Internet barcode standards 128 for Java Inter-ORB Protocol (IIOP), is the protocol used by CORBA systems to call methods and pass the argument and returned data for those methods over the network. CORBA APIs, and with them IIOP, are available for many platforms and programming languages, including the Java programming language. This platform and language independence can be a significant benefit to using IIOP when connecting to legacy systems; however, if you have to install the IIOP support code onto the host of the legacy system, don"t overlook the possibility of using RMI directly by installing a JVM on that host and using JNI, after all, the JVM is free and you"re probably using it already in other parts of your system.

A substantial body of standard services are defined for CORBA systems, covering a variety of both vertical and horizontal markets. Horizontal services for CORBA include,. but are not limited to, naming, security and transaction management. CORBA services are not usually free software though they might be included in a CORBA package. However, if any CORBA services are installed on the local network, the ability to access these might be a significant benefit to using IIOP in your systems.

Java technology systems usually use IIOP in one of two ways, either by using the Java IDL APIs or by running RMI over IIOP. The Java IDL APIs are the most direct way to use CORBA in a Java technology application. Running RMI over IIOP allows most of the coding simplicity of RMI while using IIOP as the underlying transport, and therefore allowing access to any available CORBA services.

Running RMI over IIOP also admits the possibility of using both IIOP and JRMP, the native RMI protocols, concurrently on the same network. Sometimes you might need to run a thin-client program on a system that is not in your own network, for example running an applet on a customer"s system. In this situation, it is likely that the alien network has a firewall that does not allow unrestricted outbound traffic.

Such a firewall is typically bypassed by tunneling the required messages over another port or protocol that is permitted. Usually, this is port 80 and the protocol is HTTP. IIOP is aware of these issues, and can tunnel through port 80/HTTP.

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