| Platform SDK: Logon Authentication |
SSPI message support functions enable an application to transmit and receive tamper-resistant messages and to encrypt and decrypt messages. These functions work with one or more buffers containing a message and with a security context created by the context management functions. The functions' behavior differs based on whether a connection, datagram, or stream context is in use. For a description of these differences, see Context Semantics.
The following functions provide security support for messages.
| Function | Description |
|---|---|
| DecryptMessage | Decrypts an encrypted message using the session key from a security context. |
| EncryptMessage | Encrypts a message using the session key from a security context. |
| MakeSignature | Generates a secure signature based on a message and a security context. |
| VerifySignature | Verifies that a signature matches a received message. |