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(Swift 3,4,5...) Sign PDF in the Cloud using AWS CloudHSMSee more Signing in the Cloud ExamplesDemonstrates how to sign a PDF using AWS CloudHSM. The signing of the hash happens on a hardware token in AWS CloudHSM. Everything else involving the updating the PDF to add the signature happens locally within Chilkat. Note: This example requires Chilkat v9.5.0.96 or greater.
func chilkatTest() { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems. let pkcs11 = CkoPkcs11()! // Provide the path to the AWS CloudHSM PKCS11 driver. // This example runs on Windows, so we'll provide the CloudHSM DLL. // If your code runs on Linux, the CloudHSM driver might be at /opt/cloudhsm/lib/libcloudhsm_pkcs11.so pkcs11.sharedLibPath = "C:\\Program Files\\Amazon\\CloudHSM\\lib\\cloudhsm_pkcs11.dll" // Your PIN should be a string containing your crypto user's login and password, with a colon char delimiting. // See https://docs.aws.amazon.com/cloudhsm/latest/userguide/pkcs11-pin.html var pin: String? = "user:password" var userType: Int = 1 // Establish a PKCS logged-on session using the driver (.so, .dylib, or .dll) as specified in the SharedLibPath above. var success: Bool = pkcs11.quickSession(userType, pin: pin) if success == false { print("\(pkcs11.lastErrorText!)") return } let cert = CkoCert()! success = cert.load(fromFile: "qa_data/certs/myCert.cer") if success == false { print("\(cert.lastErrorText!)") return } // Tell the certificate to link with the PKCS11 session. // The cert's private key should be installed on the CloudHSM. // If there are multiple private keys on the CloudHSM, then Chilkat will automatically // locate and use the private key corresponding to the certificate. success = cert.link(pkcs11) if success == false { print("\(cert.lastErrorText!)") return } // -------------------------------------------------------------------------- // At this point, we have the cert to be used for signing. // Our PDF signing code is the same as for a cert obtained from any other source.. let pdf = CkoPdf()! // Load a PDF to be signed. success = pdf.loadFile("qa_data/pdf/hello.pdf") if success == false { print("\(pdf.lastErrorText!)") success = pkcs11.closeSession() return } let json = CkoJsonObject()! json.updateInt("page", value: 1) json.update("appearance.y", value: "top") json.update("appearance.x", value: "left") json.update("appearance.fontScale", value: "10.0") json.update("signingAlgorithm", value: "pss") json.update("hashAlgorithm", value: "sha256") var i: Int = 0 json.i = i json.update("appearance.text[i]", value: "Digitaly signed by: Xyz Widgets, Inc.") i = i + 1 json.i = i json.update("appearance.text[i]", value: "current_dt") i = i + 1 json.i = i json.update("appearance.text[i]", value: "blah blah blah") // The certificate is internally linked to the Pkcs11 object, which is currently in an authenticated session. success = pdf.setSigning(cert) success = pdf.sign(json, outFilePath: "qa_output/out.pdf") if success == false { print("\(pdf.lastErrorText!)") success = pkcs11.closeSession() return } // -------------------------------------------------------------------------- // Revert to an unauthenticated session by calling Logout. success = pkcs11.logout() if success == false { print("\(pkcs11.lastErrorText!)") success = pkcs11.closeSession() return } // When finished, close the session. // It is important to close the session (memory leaks will occur if the session is not properly closed). success = pkcs11.closeSession() if success == false { print("\(pkcs11.lastErrorText!)") return } print("Success.") } |
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