Sign Method

Signs the current Message .

Syntax

smime.sign([callback])

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for this method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This method digitally signs the current data included in Message with the the certificate provided. Certificates are provided by specifying the Certificate property. The IncludeCertificate and DetachedSignature properties allow you to specify addition details about what to include when signing the message.

The result of the signed data will be replaced in the Message property and the MessageHeaders property will be filled with the required S/MIME headers.