Security Server is the entry point to X-Road, and it is required for both producing and consuming services via X-Road. The Security Server mediates service calls and service responses between Information Systems. The Security Server encapsulates the security aspects of the X-Road infrastructure: managing keys for signing and authentication, sending messages over a secure channel, creating the proof value for messages with digital signatures, time-stamping and logging. For a service consumer and a service provider Information System, the Security Server offers a REST-based and a SOAP-based message protocol. The protocol is the same for both the client and the service provider, making the Security Server transparent to the applications. This app is only available in English and Spanish.