verify_signature Method

Verifies the signature of the current message.

Syntax

def verify_signature() -> None: ...

Remarks

This method attempts to verify the signature of the input message. If the message does not have a certificate attached, the class will attempt to verify the signature using the certificate supplied in signer_cert (if any). If no certificate is found, the class fails with an error.

If this method is successful, the signer_cert 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 class 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:

• input_file
• input_message

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

• output_file
• output_message: The output data is written to this property if no other destination is specified.

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

The headers of the resulting message will be available in the output_message_headers and output_message_headers_string properties.