Abstract: A Web service of a network entity can be invoked using reduced messages. A redundancy agreement message is sent to the network entity. The redundancy agreement message describes a redundancy agreement for invoking the Web service using reduced messages. A reduced message is formed based on the redundancy agreement and a non-redundant portion of a Web service message that may be used for invoking the Web service. The reduced message is sent to the network entity and the Web service is invoked at the network entity based on the reduced message and the redundancy agreement.

Abstract: A system for invoking a service includes an invoking entity and a network entity such as a service provider. The invoking entity can send a service invocation request to effectuate invocation of a service. The service invocation request is formatted and sent in accordance with a given messaging architecture (e.g., SOAP). The network entity is capable of receiving the service invocation request, such as to invoke the requested service. The network entity can also send a response to the service invocation request, although the response is sent across a SIP architecture. Similar to the service invocation request, the response includes a payload formatted in accordance with the given messaging architecture. Thus, although the network entity can send a response across a SIP architecture, the invoking entity sends the service invocation request independent of the SIP architecture.

Abstract: A system for invoking a service includes an invoking entity and a network entity such as a service provider. The invoking entity can send a service invocation request to effectuate invocation of a service. The service invocation request is formatted and sent in accordance with a given messaging architecture (e.g., SOAP). The network entity is capable of receiving the service invocation request, such as to invoke the requested service. The network entity can also send a response to the service invocation request, although the response is sent across a SIP architecture. Similar to the service invocation request, the response includes a payload formatted in accordance with the given messaging architecture. Thus, although the network entity can send a response across a SIP architecture, the invoking entity sends the service invocation request independent of the SIP architecture.

Abstract: A Web service of a network entity can be invoked using reduced messages. A redundancy agreement message is sent to the network entity. The redundancy agreement message describes a redundancy agreement for invoking the Web service using reduced messages. A reduced message is formed based on the redundancy agreement and a non-redundant portion of a Web service message that may be used for invoking the Web service. The reduced message is sent to the network entity and the Web service is invoked at the network entity based on the reduced message and the redundancy agreement.

Abstract: A digital signature system is provided on a server for use by remote clients, such as by using a browser. The server generates and maintains all of the users' keys used for producing a digital signature. A user sends a data object to the server, and the server generates a digital signature for the data object using the private key stored at the server. The server then sends the digital signature to the client. A client can, at a later time, send the signature back to the server for verification.