GetSignerCertInfo Method

Gets the signature information for an signed message.

Syntax

smime.getSignerCertInfo([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 retrieves information about the certificate used to sign the message. This may be called prior to calling VerifySignature to determine which certificate should be loaded for verification.

When this method is called the SignerCertInfo event fires once for each signer of the message. Use the parameters of the SignerCertInfo to determine which certificate to specify before calling VerifySignature.

Note: Use of this method is optional. If no certificate is specified before calling VerifySignature the class will fire the SignerCertInfo and a certificate may be loaded from within the event at that time (if necessary).