Download - Svetlin Nakov

}
"Unable to access the local file system.\n" +
"This applet should be started with full security permissions.\n" +
"Please accept to trust this applet when the Java Plug-In ask you.");
}
catch (JSException jse) {
jse.printStackTrace();
JOptionPane.showMessageDialog(this,
"Unable to access some of the fields in the\n" +
"HTML form. Please check applet parameters.");
}
catch (Exception e) {
e.printStackTrace();
JOptionPane.showMessageDialog(this, "Unexpected error: "+e.getMessage());
}
/**
* Signs given local file. The certification chain and private key to be used for
* signing are specified by the local user who choose a PFX file and password for
* accessing it.
* @param aFileName the name of the file to be signed.
* @return the digital signature of the given file and the certification chain of
* the certificate used for signing the file, both Base64-encoded or null if the
* signing process is canceled by the user.
* @throws DocumentSignException when a problem arise during the singing process
* (e.g. invalid file format, invalid certificate, invalid password, etc.)
*/
private CertificationChainAndSignatureInBase64 signFile(String aFileName)
throws DocumentSignException {
// Load the file for signing
byte[] documentToSign = null;
try {
documentToSign = readFileInByteArray(aFileName);
} catch (IOException ioex) {
String errorMsg = "Can not read the file for signing " + aFileName + ".";
throw new DocumentSignException(errorMsg, ioex);
}
// Show a dialog for selecting PFX file and password
CertificateFileAndPasswordDialog certFileAndPasswdDlg =
new CertificateFileAndPasswordDialog();
if (certFileAndPasswdDlg.run()) {
// Load the keystore from specified file using the specified password
String keyStoreFileName = certFileAndPasswdDlg.getCertificateFileName();
if (keyStoreFileName.length() == 0) {
String errorMessage = "It is mandatory to select a certificate " +
"keystore (.PFX or .P12 file)!";
throw new DocumentSignException(errorMessage);
}
String password = certFileAndPasswdDlg.getCertificatePassword();
KeyStore userKeyStore = null;
try {
userKeyStore = loadKeyStoreFromPFXFile(keyStoreFileName, password);
} catch (Exception ex) {
String errorMessage = "Can not read certificate keystore file (" +
keyStoreFileName + ").\nThe file is either not in PKCS#12 format"
+ " (.P12 or .PFX) or is corrupted or the password is invalid.";
throw new DocumentSignException(errorMessage, ex);
}
// Get the private key and its certification chain from the keystore
PrivateKeyAndCertChain privateKeyAndCertChain = null;
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