Xbase++

Extract XML File from a .p7m (e.g. FATTURA ELETTRONICA, ITALY)

See more Digital Signatures Examples

_LANGUAGE_ example to extract the original file from a .p7m (Signed-Data PKCS7 Format) The .p7m contains the signed contents of the original file.

One use for this example is to extract the XML file from a Fattura Elettronica .p7m signature.

Xbase++

LOCAL nSuccess
LOCAL oCrypt
LOCAL cOutputFile
LOCAL cInFile

nSuccess := 0

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

oCrypt := CreateObject("Chilkat.Crypt2")

cOutputFile := "testData/xml/original.xml"
cInFile := "testData/p7m/fattura_signature.p7m"

//  Verify the signature and extract the XML file.
nSuccess := oCrypt:VerifyP7M(cInFile, cOutputFile)
IF (nSuccess == 0)
    ? oCrypt:LastErrorText
    oCrypt:destroy()
    RETURN
ENDIF

? "Success!"

oCrypt:destroy()