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SatSignXml Method

Sign an XML file

Namespace: FirmaSAT
Assembly: diFirmaSatNet (in diFirmaSatNet.dll) Version: 10.70.0.38178 (10.70.0.0)
Syntax
Copy
public static int SignXml(
	string newFile,
	string baseFile,
	string keyFile,
	string password = "",
	string certFile = "",
	SignOptions signOpts = SignOptions.Default
)

Parameters

newFile  String
Name of new file to be created
baseFile  String
Name of base XML file to be signed (or a string containing XML data)
keyFile  String
Name of private key file
password  String  (Optional)
Password
certFile  String  (Optional)
Name of X.509 certificate file to be included in output XML (optional)
signOpts  SignOptions  (Optional)
Options for output format (optional)

Return Value

Int32
0 if successful or non-zero error code if failed
Remarks
This will create an output XML document copied from the input with the Sello node overwritten by a new signature value. Any existing file called newFile will be overwritten without warning; however, the input and output files can be the same.

If a certificate file szCertFile is specified then the Certificado and NoCertificado nodes will be overwritten in the output file with the values in the certificate file. If a certificate file is not specified then the Certificado value in the XML will be used.

A version 4 CFDi document to be signed must use the "cfdi:" namespace prefix. For CFD v4 the NoCertificado attribute in the input must be set to the correct certificate serial number before signing. In a Retenciones document you must set the CertNum attribute before signing. In a ControlesVolumetricos document you must set both the noCertificado and certificado attributes before signing.
Example
C#
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int n = Sat.SignXml("cfdv40-signed_new.xml", "cfdv40-ejemplo.xml", "emisor.key", "12345678a", "emisor.cer");
See Also