(SQL Server) Sign Italian SPID Metadata XML

Demonstrates how to create an XML digital signature for Italian SPID Metadata.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- 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)
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @success int
    SELECT @success = 1

    -- Load the XML to be signed.
    DECLARE @sbXml int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbXml OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @sbXml, 'LoadFile', @success OUT, 'qa_data/xml_dsig/spid_metadata.xml', 'utf-8'
    IF @success = 0
      BEGIN

        PRINT 'Failed to load the input file.'
        EXEC @hr = sp_OADestroy @sbXml
        RETURN
      END

    -- The XML to sign contains XML such as this:

    -- <?xml version="1.0" encoding="utf-8"?>
    -- <md:EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" entityID="https://***.it" ID="_AE17AFFF-A600-49D5-B81D-76EEA55B50FF">
    --     <md:SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol" AuthnRequestsSigned="true" WantAssertionsSigned="true">
    --         <md:KeyDescriptor use="signing">
    --             <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    --                 <ds:X509Data>
    --                     <ds:X509Certificate>MIIF5...</ds:X509Certificate>
    --                 </ds:X509Data>
    --             </ds:KeyInfo>
    --         </md:KeyDescriptor>
    --         <md:KeyDescriptor use="encryption">
    --             <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    --                 <ds:X509Data>
    --                     <ds:X509Certificate>MIIF5...</ds:X509Certificate>
    --                 </ds:X509Data>
    --             </ds:KeyInfo>
    --         </md:KeyDescriptor>
    --         <md:SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://***.it/it-it/spid/logout"/>
    --         <md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat>
    --         <md:AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://***.it/it-it/spid/loginresp" index="0" isDefault="true"/>
    --         <md:AttributeConsumingService index="1">
    --             <md:ServiceName xml:lang="it">Servizi Online</md:ServiceName>
    --             <md:ServiceDescription xml:lang="it">Accesso ai Servizi Online</md:ServiceDescription>
    --             <md:RequestedAttribute Name="spidCode" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    --             <md:RequestedAttribute Name="name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    --             <md:RequestedAttribute Name="familyName" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    --             <md:RequestedAttribute Name="fiscalNumber" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    --         </md:AttributeConsumingService>
    --     </md:SPSSODescriptor>
    --     <md:Organization>
    --         <md:OrganizationName xml:lang="it">SomeCompany s.r.l.</md:OrganizationName>
    --         <md:OrganizationDisplayName xml:lang="it">SomeCompany s.r.l.</md:OrganizationDisplayName>
    --         <md:OrganizationURL xml:lang="it">https://***.it</md:OrganizationURL>
    --     </md:Organization>
    -- </md:EntityDescriptor>

    DECLARE @gen int
    -- Use "Chilkat_9_5_0.XmlDSigGen" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.XmlDSigGen', @gen OUT

    EXEC sp_OASetProperty @gen, 'SigLocation', 'md:EntityDescriptor|md:SPSSODescriptor'
    EXEC sp_OASetProperty @gen, 'SigLocationMod', 2
    EXEC sp_OASetProperty @gen, 'SignedInfoCanonAlg', 'EXCL_C14N'
    EXEC sp_OASetProperty @gen, 'SignedInfoDigestMethod', 'sha256'

    -- -------- Reference 1 --------
    EXEC sp_OAMethod @gen, 'AddSameDocRef', @success OUT, '_AE17AFFF-A600-49D5-B81D-76EEA55B50FF', 'sha256', 'EXCL_C14N', '', ''

    -- Provide a certificate + private key. (PFX password is test123)
    DECLARE @cert int
    -- Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0
    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 @sbXml
        EXEC @hr = sp_OADestroy @gen
        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'

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

    -- 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 @sbXml
        EXEC @hr = sp_OADestroy @gen
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END
    -- -----------------------------------------------

    -- Save the signed XML to a file.
    EXEC sp_OAMethod @sbXml, 'WriteFile', @success OUT, '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
    -- Use "Chilkat_9_5_0.XmlDSig" for versions of Chilkat < 10.0.0
    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 @sbXml
        EXEC @hr = sp_OADestroy @gen
        EXEC @hr = sp_OADestroy @cert
        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 @sbXml
            EXEC @hr = sp_OADestroy @gen
            EXEC @hr = sp_OADestroy @cert
            EXEC @hr = sp_OADestroy @verifier
            RETURN
          END
        SELECT @verifyIdx = @verifyIdx + 1
      END

    PRINT 'All signatures were successfully verified.'

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


END
GO