4. Specialized Decodes

4 Specialized Decodes

When performance is of highest priority and you are interested in a limited part of the ASN.1 encoded message before deciding what to do with the rest of it, an option is to decode only this small part. The situation can be a server that has to decide the addressee of a message. The addressee can be interested in the entire message, but the server can be a bottleneck that you want to spare any unnecessary load.

Instead of making two complete decodes (the normal case of decode), one in the server and one in the addressee, it is only necessary to make one specialized decode(in the server) and another complete decode(in the addressee). This section describes the following two specialized decodes, which support to solve this and similar problems:

• Exclusive decode
• Selected decode

This functionality is only p