(Swift) Create CAdES-BES .p7m for FatturaPA XML Invoice

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.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    //  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.

    let crypt = CkoCrypt2()

    //  Use a digital certificate and private key from a PFX file (.pfx or .p12).
    var pfxPath: String? = "qa_data/pfx/cert_test123.pfx"
    var pfxPassword: String? = "test123"

    let cert = CkoCert()
    var success: Bool = cert.LoadPfxFile(pfxPath, password: pfxPassword)
    if success != true {
        print("\(cert.LastErrorText)")
        return
    }

    //  Provide the signing cert (with associated private key).
    success = crypt.SetSigningCert(cert)
    if success != true {
        print("\(crypt.LastErrorText)")
        return
    }

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

    //  Specify the signed attributes to be included.
    //  (This is what makes it CAdES-BES compliant.)
    let jsonSignedAttrs = CkoJsonObject()
    jsonSignedAttrs.UpdateInt("contentType", value: 1)
    jsonSignedAttrs.UpdateInt("signingTime", value: 1)
    jsonSignedAttrs.UpdateInt("messageDigest", value: 1)
    jsonSignedAttrs.UpdateInt("signingCertificateV2", value: 1)
    crypt.SigningAttributes = jsonSignedAttrs.Emit()

    var inFile: String? = "qa_data/xml/IT01234567890_11002.xml"
    var sigFile: String? = "qa_output/IT01234567890_11002.xml.p7m"

    //  Create the CAdES-BES signature, which contains the original data.
    success = crypt.CreateP7M(inFile, p7mPath: sigFile)
    if success == false {
        print("\(crypt.LastErrorText)")
        return
    }

    print("Success.")

}