ESYAE-imza Kütüphaneleri

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<h2>SIGNATURE ON ANDROID</h2> <div class="level2"> <p> Basic Electroinc Signature (BES) can be created on Android platform. Current version only supports AKIS smartcards. </p> <p> While creating signature on Android, APDU commands are used in order to communicate with the smartcard. The class <code>APDUSmartCard</code> is constructed with proper parameters and the <code>BaseSigner</code> object taken with the method <code>getSigner()</code> is used in signature creation. When <code>APDUSmartCard</code> is being constructed, a proper <code>TerminalHandler</code> must be created and used. Current version has the class <code>ACSTerminalHandler</code>. For the operations requiring smartcard, the system wants confirmation from the user that he or she allows the application for usb access. For proper display of this confirmation dialog in the android system, an object of <code>PendingIntent</code> must be given to <code>ACSTerminalHandler</code>. Due to similer work flows in android systems card operations must not be performed in the main GUI class. They must be performed in a class derived from <code>AsyncTask</code>. </p> <p> An example application (as an eclipse project) listing the certificates in a smart card and signing a selected file, is included in the package. The required jar files can be seen by examining this eclipse project. When using API with the test licence, only the test certificates can be used and a slight delay of 5 seconds will be suffered during each operation. </p> <p> The work flow mentioned above is demonstrated in the function below which is explained by comments </p> <p> <em><</em>sxh java> public void signWithFirstCertificate() </p> <pre class="code"> { try { //Embedded licence file is loaded here Resources res = getResources(); InputStream lisansStream = res.openRawResource(R.raw.lisans); LicenseUtil.setLicenseXml(lisansStream); lisansStream.close(); Activity callerActivity = this; //The calling Activity must be given as a parameter when constructing ACSTerminalHandler ACSTerminalHandler acsTerminalHandler = new ACSTerminalHandler((Activity)this); //APDUSmartCard must be called with a proper TerminalHandler object APDUSmartCard apduSmartCard = new APDUSmartCard(acsTerminalHandler); // PendingIntent object created for usb access confirmation must be given to TerminalHandler. PendingIntent permissionIntent = PendingIntent.getBroadcast(callerActivity, 0, new Intent("tr.gov.tubitak.bilgem.esya.android.signexample.USB_PERMISSION"), 0); acsTerminalHandler.setPermissionIntent(permissionIntent); //SecureMessaging must be disabled. apduSmartCard.setDisableSecureMessaging(true); //Getting connected card readers. CardTerminal[] terminalList = apduSmartCard.getTerminalList(); if(terminalList == null || terminalList.length == 0) { throw new Exception("Bağlı kart okuyucu sayısı 0"); } CardTerminal cardTerminal = terminalList[0]; apduSmartCard.openSession(cardTerminal); //The certificate list is collected from the first card reader List&lt;byte[]&gt; signCertValueList = mApduSmartCard.getSignatureCertificates(); if(signCertValueList == null || signCertValueList.size() == 0) { throw new Exception("Kart içerisinde sertifika sayısı 0"); } //The first certficate will be used ECertificate signingCert = new ECertificate(signCertValueList.get(0)); String cardPin = "511661"; apduSmartCard.login(cardPin); // BaseSigner object is retrieved from APDUSmartCard BaseSigner signer = apduSmartCard.getSigner(signingCert.asX509Certificate(), Algorithms.SIGNATURE_RSA_SHA1); BaseSignedData bsd = new BaseSignedData(); //The path of the file to be signed String sourceFilePath = "/tmp/TextForSign.txt"; ISignable content = new SignableFile(new File(sourceFilePath)); bsd.addContent(content); //Since SigningTime attribute is optional,add it to optional attributes list List&lt;IAttribute&gt; optionalAttributes = new ArrayList&lt;IAttribute&gt;(); optionalAttributes.add(new SigningTimeAttr(Calendar.getInstance())); HashMap&lt;String, Object&gt; params = new HashMap&lt;String, Object&gt;(); //On Android, certificate validation must be disabled when signing //The current version does not support certificate validation params.put(EParameters.P_VALIDATE_CERTIFICATE_BEFORE_SIGNING,false); bsd.addSigner(ESignatureType.TYPE_BES, signingCert, signer, optionalAttributes, params); byte [] signedDocument = bsd.getEncoded(); String destFilePath = sourceFilePath+ ".imz"; //Signed document is being written to the target file. AsnIO.dosyayaz(signedDocument, destFilePath); apduSmartCard.logout(); apduSmartCard.closeSession(); } catch (Exception e) { e.printStackTrace(); } } </pre><p> </p> <p> <em><</em>/sxh> </p> </div>