Xbase++

Extract a File from a .p7m (PKCS7 Signed-Data)

See more Encryption 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. It can be verified and restored by calling VerifyP7M. 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")

//  What is a .p7m file?

cOutputFile := "/Users/chilkat/testData/pdf/sample.pdf"
cInFile := "/Users/chilkat/testData/p7m/sample.pdf.p7m"

//  Verify and restore the original file:
nSuccess := oCrypt:VerifyP7M(cInFile, cOutputFile)
IF (nSuccess == 0)
    ? oCrypt:LastErrorText
    oCrypt:destroy()
    RETURN
ENDIF

? "Success!"

oCrypt:destroy()