Xbase++

Create CAdES-BES .p7m for FatturaPA XML Invoice

See more Digital Signatures Examples

Demonstrates how to create a CAdES BES invoice.xml.p7m for the Italian FatturaPA exchange system.

Note: This example requires Chilkat v9.5.0.75.

Xbase++

LOCAL nSuccess
LOCAL oCrypt
LOCAL cPfxPath
LOCAL cPfxPassword
LOCAL oCert
LOCAL oJsonSignedAttrs
LOCAL cInFile
LOCAL cSigFile

nSuccess := 0

//  Note: Requires Chilkat v9.5.0.75 or greater.

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

oCrypt := CreateObject("Chilkat.Crypt2")

//  Use a digital certificate and private key from a PFX file (.pfx or .p12).
cPfxPath := "qa_data/pfx/cert_test123.pfx"
cPfxPassword := "test123"

oCert := CreateObject("Chilkat.Cert")
nSuccess := oCert:LoadPfxFile(cPfxPath, cPfxPassword)
IF (nSuccess != 1)
    ? oCert:LastErrorText
    oCrypt:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Provide the signing cert (with associated private key).
nSuccess := oCrypt:SetSigningCert(oCert)
IF (nSuccess != 1)
    ? oCrypt:LastErrorText
    oCrypt:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Indicate that SHA-256 should be used.
oCrypt:HashAlgorithm := "sha256"

//  Specify the signed attributes to be included.
//  (This is what makes it CAdES-BES compliant.)
oJsonSignedAttrs := CreateObject("Chilkat.JsonObject")
oJsonSignedAttrs:UpdateInt("contentType", 1)
oJsonSignedAttrs:UpdateInt("signingTime", 1)
oJsonSignedAttrs:UpdateInt("messageDigest", 1)
oJsonSignedAttrs:UpdateInt("signingCertificateV2", 1)
oCrypt:SigningAttributes := oJsonSignedAttrs:Emit()

cInFile := "qa_data/xml/IT01234567890_11002.xml"
cSigFile := "qa_output/IT01234567890_11002.xml.p7m"

//  Create the CAdES-BES signature, which contains the original data.
nSuccess := oCrypt:CreateP7M(cInFile, cSigFile)
IF (nSuccess == 0)
    ? oCrypt:LastErrorText
    oCrypt:destroy()
    oCert:destroy()
    oJsonSignedAttrs:destroy()
    RETURN
ENDIF

? "Success."

oCrypt:destroy()
oCert:destroy()
oJsonSignedAttrs:destroy()