(Visual Basic 6.0) Create .p7s Compliant with ICP-Brazil Digital Signature Standard

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.

Important: This example requires Chilkat v9.5.0.92 or later.

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

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

Dim crypt As New ChilkatCrypt2

' Any type of file can be signed.  It doesn't have to be a PDF.
Dim inFile As String
inFile = "qa_data/pdf/helloWorld.pdf"

Dim bd As New ChilkatBinData
Dim success As Long
success = bd.LoadFile(inFile)
If (success = 0) Then
    Debug.Print "Failed to load " & inFile
    Exit Sub
End If

' Get the certificate we'll be using to sign.
Dim cert As New ChilkatCert

success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
If (success = 0) Then
    Debug.Print cert.LastErrorText
    Exit Sub
End If

success = crypt.SetSigningCert(cert)
If (success = 0) Then
    Debug.Print crypt.LastErrorText
    Exit Sub
End If

' Set properties for signing...
crypt.HashAlgorithm = "sha256"

Dim jsonSigningAttrs As New ChilkatJsonObject
success = jsonSigningAttrs.UpdateInt("contentType",1)
success = jsonSigningAttrs.UpdateInt("signingTime",1)
success = jsonSigningAttrs.UpdateInt("messageDigest",1)
success = jsonSigningAttrs.UpdateInt("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
success = jsonSigningAttrs.UpdateString("policyId.id","2.16.76.1.7.1.1.2.3")
success = jsonSigningAttrs.UpdateString("policyId.profile","PA_AD_RB_v2_3")

crypt.SigningAttributes = jsonSigningAttrs.Emit()

' Sign. 
success = crypt.OpaqueSignBd(bd)
If (success = 0) Then
    Debug.Print crypt.LastErrorText
    Exit Sub
End If

' Save to a .p7s
success = bd.WriteFile("qa_output/helloWorld.pdf.p7s")

Debug.Print "Success"