The message support functions of the Security Support Provider Interface enable an application to transmit messages that cannot be tampered with. The functions work with one or more buffers that contain a message, and an associated security context created by the context management functions. The behavior can differ based on the type of context: connection, datagram, or stream. For a description of the differences, see Context Semantics.
The following functions provide security support for messages.
| Function | Description |
|---|---|
| MakeSignature | Generate a secure signature based on a message and a security context. |
| VerifySignature | Verify that a signature matches a received message. |