Visual FoxPro

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.

Visual FoxPro

LOCAL lnSuccess
LOCAL loCrypt
LOCAL lcPfxPath
LOCAL lcPfxPassword
LOCAL loCert
LOCAL loJsonSignedAttrs
LOCAL lcInFile
LOCAL lcSigFile

lnSuccess = 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.

loCrypt = CreateObject('Chilkat.Crypt2')

* Use a digital certificate and private key from a PFX file (.pfx or .p12).
lcPfxPath = "qa_data/pfx/cert_test123.pfx"
lcPfxPassword = "test123"

loCert = CreateObject('Chilkat.Cert')
lnSuccess = loCert.LoadPfxFile(lcPfxPath,lcPfxPassword)
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loCrypt
    RELEASE loCert
    CANCEL
ENDIF

* Provide the signing cert (with associated private key).
lnSuccess = loCrypt.SetSigningCert(loCert)
IF (lnSuccess <> 1) THEN
    ? loCrypt.LastErrorText
    RELEASE loCrypt
    RELEASE loCert
    CANCEL
ENDIF

* Indicate that SHA-256 should be used.
loCrypt.HashAlgorithm = "sha256"

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

lcInFile = "qa_data/xml/IT01234567890_11002.xml"
lcSigFile = "qa_output/IT01234567890_11002.xml.p7m"

* Create the CAdES-BES signature, which contains the original data.
lnSuccess = loCrypt.CreateP7M(lcInFile,lcSigFile)
IF (lnSuccess = 0) THEN
    ? loCrypt.LastErrorText
    RELEASE loCrypt
    RELEASE loCert
    RELEASE loJsonSignedAttrs
    CANCEL
ENDIF

? "Success."

RELEASE loCrypt
RELEASE loCert
RELEASE loJsonSignedAttrs