Xbase++

Create CAdES-BES .p7m using Smart Card or USB Token

See more Digital Signatures Examples

Demonstrates how to create a CAdES BES invoice.xml.p7m using a certificate stored on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.77 and at the time of this writing is restricted to the Windows operating system.

Xbase++

LOCAL nSuccess
LOCAL oCrypt
LOCAL oCert
LOCAL oJsonSignedAttrs
LOCAL cInFile
LOCAL cSigFile

nSuccess := 0

//  Note: Requires Chilkat v9.5.0.77 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 certificate on a smartcard or USB token.
oCert := CreateObject("Chilkat.Cert")
//  Load the certificate on the smartcard currently in the reader (or on the USB token).
//  Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
//  See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
nSuccess := oCert:LoadFromSmartcard("")
IF (nSuccess != 1)
    ? oCert:LastErrorText
    oCrypt:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Provide the smartcard PIN.
//  If the PIN is not explicitly provided here, the Windows OS should
//  display a dialog for the PIN.
oCert:SmartCardPin := "000000"

//  Provide the certificate for signing.
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()