UnknownKeyReceived Event

Signals that the server has introduced itself with an unknown key.

Syntax

sftpclient.on('UnknownKeyReceived', [callback])

Callback

The 'callback' is called when the 'UnknownKeyReceived' event is emited.

function(e){ }

The argument 'e' has the following properties:

e.algorithm
e.bits
e.fingerprintSHA256
e.action

Remarks

The class fires this event to tell the application that the server has introduced itself with a key not present in TrustedKeysFile. The details of the key are provided. In this event handler, you need to make a decision whether to proceed with the connection.

Use ServerKey to access more key details.

Use Action to tell the class what it should do with the key, supported values: catAcceptOnce = 1, catAcceptPermanently = 2, catReject = 3. Note that accepting an unknown and unchecked key may be risky.