(SQL Server) Create ICP-Brasil Compliant CMS Signature

Demonstrates how to create a .p7s signature that contains a data file, which in this case is a PDF. The .p7s will be compliant with the ICP-Brazil Digital Signature Standard.

The .p7s file created by this example can be verified at ICP-Brasil Online Verifier

For more information, see http://www.iti.gov.br/images/repositorio/consulta-publica/encerradas/DOC-ICP-15_-_Versao_2.2_VISAO_GERAL_SOBRE_ASSIN_DIG_NA_ICP-BRASIL_xx-xx-2015.pdf

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 requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- ------------------------------------------------------------------------------------------------------
    -- Note: This example creates a CMS signature (.p7s) that contains the PDF.
    -- It is different than signing a PDF.  To sign a PDF where the resulting PDF contains the CMS signature,
    -- see this example:  Sign PDF for ICP-Brasil
    -- ------------------------------------------------------------------------------------------------------
    DECLARE @crypt int
    -- Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Any type of file can be signed.  It doesn't have to be a PDF.
    DECLARE @inFile nvarchar(4000)
    SELECT @inFile = 'qa_data/pdf/helloWorld.pdf'

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

    DECLARE @success int
    EXEC sp_OAMethod @bd, 'LoadFile', @success OUT, @inFile
    IF @success = 0
      BEGIN

        PRINT 'Failed to load ' + @inFile
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @bd
        RETURN
      END

    -- We'll be using a certificate w/ private key stored on a smartcard for signing.
    DECLARE @cert int
    -- Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    -- If the smartcard or token requires a PIN, we can set it here to avoid the dialog...
    EXEC sp_OASetProperty @cert, 'SmartCardPin', '000000'

    EXEC sp_OAMethod @cert, 'LoadFromSmartcard', @success OUT, ''
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @bd
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- Tell the crypt component to use this cert.
    EXEC sp_OAMethod @crypt, 'SetSigningCert', @success OUT, @cert
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @bd
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- Set properties for signing...
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha256'

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

    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'contentType', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'signingTime', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'messageDigest', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateBool', @success OUT, 'signingCertificateV2', 1

    -- Listed here are the currently existing profiles. (Chilkat will add additional ICP Brasil policy profiles in future versions as new ones are created.)
    -- See https://www.gov.br/iti/pt-br/assuntos/repositorio/artefatos-de-assinatura-digital for more information.
    -- 
    -- PA_AD_RA --> 2.16.76.1.7.1.5.1
    -- PA_AD_RA_v1_1 --> 2.16.76.1.7.1.5.1.1
    -- PA_AD_RA_v1_2 --> 2.16.76.1.7.1.5.1.2
    -- PA_AD_RA_v2_0 --> 2.16.76.1.7.1.5.2
    -- PA_AD_RA_v2_1 --> 2.16.76.1.7.1.5.2.1
    -- PA_AD_RA_v2_2 --> 2.16.76.1.7.1.5.2.2
    -- PA_AD_RA_v2_3 --> 2.16.76.1.7.1.5.2.3
    -- PA_AD_RA_v2_4 --> 2.16.76.1.7.1.5.2.4
    -- PA_AD_RB --> 2.16.76.1.7.1.1.1
    -- PA_AD_RB_v1_1 --> 2.16.76.1.7.1.1.1.1
    -- PA_AD_RB_v2_0 --> 2.16.76.1.7.1.1.2
    -- PA_AD_RB_v2_1 --> 2.16.76.1.7.1.1.2.1
    -- PA_AD_RB_v2_2 --> 2.16.76.1.7.1.1.2.2
    -- PA_AD_RB_v2_3 --> 2.16.76.1.7.1.1.2.3
    -- PA_AD_RC --> 2.16.76.1.7.1.4.1
    -- PA_AD_RC_v1_1 --> 2.16.76.1.7.1.4.1.1
    -- PA_AD_RC_v2_0 --> 2.16.76.1.7.1.4.2
    -- PA_AD_RC_v2_1 --> 2.16.76.1.7.1.4.2.1
    -- PA_AD_RC_v2_2 --> 2.16.76.1.7.1.4.2.2
    -- PA_AD_RC_v2_3 --> 2.16.76.1.7.1.4.2.3
    -- PA_AD_RT --> 2.16.76.1.7.1.2.1
    -- PA_AD_RT_v1_1 --> 2.16.76.1.7.1.2.1.1
    -- PA_AD_RT_v2_0 --> 2.16.76.1.7.1.2.2
    -- PA_AD_RT_v2_1 --> 2.16.76.1.7.1.2.2.1
    -- PA_AD_RT_v2_2 --> 2.16.76.1.7.1.2.2.2
    -- PA_AD_RT_v2_3 --> 2.16.76.1.7.1.2.2.3
    -- PA_AD_RV --> 2.16.76.1.7.1.3.1
    -- PA_AD_RV_v1_1 --> 2.16.76.1.7.1.3.1.1
    -- PA_AD_RV_v2_0 --> 2.16.76.1.7.1.3.2
    -- PA_AD_RV_v2_1 --> 2.16.76.1.7.1.3.2.1
    -- PA_AD_RV_v2_2 --> 2.16.76.1.7.1.3.2.2
    -- PA_AD_RV_v2_3 --> 2.16.76.1.7.1.3.2.3

    -- Set the policy OID and the profile name
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateString', @success OUT, 'policyId.id', '2.16.76.1.7.1.1.2.3'
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateString', @success OUT, 'policyId.profile', 'PA_AD_RB_v2_3'

    EXEC sp_OAMethod @jsonSigningAttrs, 'Emit', @sTmp0 OUT
    EXEC sp_OASetProperty @crypt, 'SigningAttributes', @sTmp0

    -- The Brazil government validator requires the ASN.1 data to be in "constructed octets" form..
    EXEC sp_OASetProperty @crypt, 'UncommonOptions', 'UseConstructedOctets,OmitAlgorithmIdNull'
    EXEC sp_OASetProperty @crypt, 'IncludeCertChain', 0

    -- Sign. 
    EXEC sp_OAMethod @crypt, 'OpaqueSignBd', @success OUT, @bd
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @bd
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @jsonSigningAttrs
        RETURN
      END

    -- Save to a .p7s
    EXEC sp_OAMethod @bd, 'WriteFile', @success OUT, 'qa_output/helloWorld.pdf.p7s'


    PRINT 'Success'

    EXEC @hr = sp_OADestroy @crypt
    EXEC @hr = sp_OADestroy @bd
    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @jsonSigningAttrs


END
GO