Swift

Create CAdES-T Signature using Aruba TSA Server (servizi.arubapec.it)

See more CAdES Examples

Demonstrates how to create a signature with an external timestamp (using the Aruba TSA Server) that certifies the time of signing.

Note: This example requires Chilkat v9.5.0.79 or greater.

Swift

func chilkatTest() {
    var success: Bool = false

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

    let crypt = CkoCrypt2()!

    // This example will use a certificate + private key from a .pfx/.p12 file.
    // On Windows systems, it is also possible to use certs on smartcards/usb tokens or certs pre-installed in the Windows registry.
    let cert = CkoCert()!

    var pfxPath: String? = "qa_data/pfx/myCertAndKey.p12"
    var pfxPassword: String? = "test123"

    success = cert.loadPfxFile(path: pfxPath, password: pfxPassword)
    if success != true {
        print("\(cert.lastErrorText!)")
        return
    }

    success = crypt.setSigningCert(cert: cert)

    // Use SHA-256 rather than the default of SHA-1
    crypt.hashAlgorithm = "sha256"

    // Create JSON that tells Chilkat what signing attributes to include:
    let attrs = CkoJsonObject()!
    attrs.updateBool(jsonPath: "contentType", value: true)
    attrs.updateBool(jsonPath: "signingTime", value: true)
    attrs.updateBool(jsonPath: "messageDigest", value: true)
    attrs.updateBool(jsonPath: "signingCertificateV2", value: true)

    // A CAdES-T signature is one that includes a timestampToken created by an online TSA (time stamping authority).
    // We must include the TSA's URL, as well as a few options to indicate what is desired.
    // This example uses the Aruba TSA server, which requires a login/password for the HTTPS request.
    attrs.updateBool(jsonPath: "timestampToken.enabled", value: true)
    attrs.updateString(jsonPath: "timestampToken.tsaUrl", value: "https://servizi.arubapec.it/tsa/ngrequest.php")

    // The tsaUsername/tsaPassword feature was added in Chilkat v9.5.0.79.
    // Make sure you are using a version of Chilkat that is no older than v9.5.0.79
    attrs.updateString(jsonPath: "timestampToken.tsaUsername", value: "arubaTsaUsername")
    attrs.updateString(jsonPath: "timestampToken.tsaPassword", value: "arubaTsaPassword")

    attrs.updateBool(jsonPath: "timestampToken.addNonce", value: false)
    attrs.updateBool(jsonPath: "timestampToken.requestTsaCert", value: true)
    attrs.updateString(jsonPath: "timestampToken.hashAlg", value: "sha256")

    crypt.signingAttributes = attrs.emit()

    var inFile: String? = "qa_data/json/sample.json"
    var outFile: String? = "qa_output/sample_cades_t.p7m"

    // This creates the CAdES-T signature.  During the signature creation, it
    // communicates with the TSA to get a timestampToken.
    success = crypt.createP7M(inPath: inFile, p7mPath: outFile)
    if success != true {
        print("\(crypt.lastErrorText!)")
        return
    }

    print("Success.")

}