ExchangeKeys Method

Causes the class to exchange a new set of session keys on the specified connection.


ANSI (Cross Platform)
int ExchangeKeys(int iConnectionId);

Unicode (Windows)
INT ExchangeKeys(INT iConnectionId);
- (void)exchangeKeys:(int)connectionId;

IPWORKSSFTP_EXTERNAL int IPWORKSSFTP_CALL IPWorksSFTP_SFTPServer_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);


SSH key renegotiation can be initiated by either end of an established SSH connection. ExchangeKeys allows the server to start such a renegotiation with the client. During this process, SSHStatus events will fire containing updates regarding the key negotiation process.

The SSH 2.0 specification recommends that key renegotiation be done once for 2 gigabytes (GB) of data processed by the connection, or once every day. This makes it more difficult to break the security of data-intensive or long-lived connections.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

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IPWorks SFTP 2020 C++ Edition - Version 20.0 [Build 8162]