IPWorks S/MIME 2020 .NET Edition

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VerifySignature Method

Verifies the signature of the current message.

Syntax

public void VerifySignature();
Public Sub VerifySignature()

Remarks

This method attempts to verify the signature of the input message. If the message does not have a certificate attached, the component will attempt to verify the signature using the certificate supplied in SignerCert (if any). If no certificate is found, the component throws an exception.

If this method is successful, the SignerCert property will contain the certificate information of the message signer.

NOTE: This function does not attempt to check the validity of the signing certificate itself.

Input and Output Properties

The component will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

When using streams you may need to additionally set CloseInputStreamAfterProcessing or CloseOutputStreamAfterProcessing.

The headers of the input message (if any) will be read from InputMessageHeaders or InputMessageHeadersString.

The headers of the resulting message will be available in the OutputMessageHeaders and OutputMessageHeadersString properties.

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IPWorks S/MIME 2020 .NET Edition - Version 20.0 [Build 8161]