SQL Server

SII XML Digital Signature

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Example for SII XML Digital Signature. SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    SELECT @success = 1

    -- Load the XML to be signed.
    DECLARE @xmlToSign int
    EXEC @hr = sp_OACreate 'Chilkat.Xml', @xmlToSign OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @xmlToSign, 'LoadXmlFile', @success OUT, 'c:/aaworkarea/eduardo/sii_unsigned.xml'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @xmlToSign, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmlToSign
        RETURN
      END

    -- The sample XML to be signed looks like this:

    -- <?xml version="1.0" encoding="ISO-8859-1"?>
    -- <EnvioDTE xmlns="http://www.sii.cl/SiiDte" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sii.cl/SiiDte EnvioDTE_v10.xsd" version="1.0">
    -- <SetDTE ID="SetDocF0T33_20240425_170512">
    --  <Caratula version="1.0">
    --   <RutEmisor>99999999-4</RutEmisor>
    --   <RutEnvia>12345678-6</RutEnvia>
    --   <RutReceptor>888888000-K</RutReceptor>
    --   <FchResol>2014-08-22</FchResol>
    --   <NroResol>80</NroResol>
    --   <TmstFirmaEnv>2024-04-25T17:05:13</TmstFirmaEnv>
    --   <SubTotDTE>
    --    <TpoDTE>33</TpoDTE>
    --    <NroDTE>1</NroDTE>
    --   </SubTotDTE>
    --  </Caratula>
    -- <DTE version="1.0">
    -- <Documento ID="F555T55">
    -- ...
    -- </Documento>
    -- </EnvioDTE>

    DECLARE @gen int
    EXEC @hr = sp_OACreate 'Chilkat.XmlDSigGen', @gen OUT

    EXEC sp_OASetProperty @gen, 'SigLocation', 'EnvioDTE|SetDTE|DTE'
    EXEC sp_OASetProperty @gen, 'SigLocationMod', 0
    EXEC sp_OASetProperty @gen, 'SigNamespacePrefix', ''
    EXEC sp_OASetProperty @gen, 'SigNamespaceUri', 'http://www.w3.org/2000/09/xmldsig#'
    EXEC sp_OASetProperty @gen, 'SignedInfoCanonAlg', 'C14N'
    EXEC sp_OASetProperty @gen, 'SignedInfoDigestMethod', 'sha1'

    -- -------- Reference 1 --------
    DECLARE @xml1 int
    EXEC @hr = sp_OACreate 'Chilkat.Xml', @xml1 OUT

    EXEC sp_OASetProperty @xml1, 'Tag', 'Transforms'
    EXEC sp_OAMethod @xml1, 'UpdateAttrAt', @success OUT, 'Transform', 1, 'Algorithm', 'http://www.w3.org/TR/2001/REC-xml-c14n-20010315'

    EXEC sp_OAMethod @gen, 'AddSameDocRef2', @success OUT, 'F511T33', 'sha1', @xml1, ''

    -- Provide a certificate + private key. (PFX password is test123)
    DECLARE @cert int
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    EXEC sp_OAMethod @cert, 'LoadPfxFile', @success OUT, 'qa_data/pfx/cert_test123.pfx', 'test123'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmlToSign
        EXEC @hr = sp_OADestroy @gen
        EXEC @hr = sp_OADestroy @xml1
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END
    EXEC sp_OAMethod @gen, 'SetX509Cert', @success OUT, @cert, 1

    EXEC sp_OASetProperty @gen, 'KeyInfoType', 'X509Data+KeyValue'
    EXEC sp_OASetProperty @gen, 'X509Type', 'Certificate'

    -- Load XML to be signed...
    DECLARE @sbXml int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbXml OUT

    EXEC sp_OAMethod @xmlToSign, 'GetXmlSb', @success OUT, @sbXml

    EXEC sp_OASetProperty @gen, 'Behaviors', 'IndentedSignature'

    -- Sign the XML...
    EXEC sp_OAMethod @gen, 'CreateXmlDSigSb', @success OUT, @sbXml
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @gen, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmlToSign
        EXEC @hr = sp_OADestroy @gen
        EXEC @hr = sp_OADestroy @xml1
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @sbXml
        RETURN
      END

    -- -----------------------------------------------

    -- Save the signed XML to a file.
    EXEC sp_OAMethod @sbXml, 'WriteFile', @success OUT, 'c:/temp/qa_output/signedXml.xml', 'utf-8', 0

    EXEC sp_OAMethod @sbXml, 'GetAsString', @sTmp0 OUT
    PRINT @sTmp0

    -- ----------------------------------------
    -- Verify the signatures we just produced...
    DECLARE @verifier int
    EXEC @hr = sp_OACreate 'Chilkat.XmlDSig', @verifier OUT

    EXEC sp_OAMethod @verifier, 'LoadSignatureSb', @success OUT, @sbXml
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @verifier, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmlToSign
        EXEC @hr = sp_OADestroy @gen
        EXEC @hr = sp_OADestroy @xml1
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @sbXml
        EXEC @hr = sp_OADestroy @verifier
        RETURN
      END

    DECLARE @numSigs int
    EXEC sp_OAGetProperty @verifier, 'NumSignatures', @numSigs OUT
    DECLARE @verifyIdx int
    SELECT @verifyIdx = 0
    WHILE @verifyIdx < @numSigs
      BEGIN
        EXEC sp_OASetProperty @verifier, 'Selector', @verifyIdx
        DECLARE @verified int
        EXEC sp_OAMethod @verifier, 'VerifySignature', @verified OUT, 1
        IF @verified <> 1
          BEGIN
            EXEC sp_OAGetProperty @verifier, 'LastErrorText', @sTmp0 OUT
            PRINT @sTmp0
            EXEC @hr = sp_OADestroy @xmlToSign
            EXEC @hr = sp_OADestroy @gen
            EXEC @hr = sp_OADestroy @xml1
            EXEC @hr = sp_OADestroy @cert
            EXEC @hr = sp_OADestroy @sbXml
            EXEC @hr = sp_OADestroy @verifier
            RETURN
          END
        SELECT @verifyIdx = @verifyIdx + 1
      END

    PRINT 'All signatures were successfully verified.'

    EXEC @hr = sp_OADestroy @xmlToSign
    EXEC @hr = sp_OADestroy @gen
    EXEC @hr = sp_OADestroy @xml1
    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @sbXml
    EXEC @hr = sp_OADestroy @verifier


END
GO