The <ReplayCache> element configures the plugin used for the caching of message identifiers to prevent replay attacks. The only supplied cache implementation is a wrapper around a <StorageService> plugin.

On Version 2.4 and above, can be omitted, and a default/arbitrary StorageService will be used.

<ReplayCache StorageService="db"/>


  • StorageService (XML IDREF)
    • Reference to the id attribute of a previously defined <StorageService> element.