List of usage examples for java.security MessageDigest getInstance
public static MessageDigest getInstance(String algorithm) throws NoSuchAlgorithmException
From source file:com.l2jfree.loginserver.tools.L2AccountManager.java
/** * Launches the interactive account manager. * //from www . j a va2s . c om * @param args ignored */ public static void main(String[] args) { // LOW rework this crap Util.printSection("Account Management"); _log.info("Please choose:"); //_log.info("list - list registered accounts"); _log.info("reg - register a new account"); _log.info("rem - remove a registered account"); _log.info("prom - promote a registered account"); _log.info("dem - demote a registered account"); _log.info("ban - ban a registered account"); _log.info("unban - unban a registered account"); _log.info("quit - exit this application"); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); L2AccountManager acm = new L2AccountManager(); String line; try { while ((line = br.readLine()) != null) { line = line.trim(); Connection con = null; switch (acm.getState()) { case USER_NAME: line = line.toLowerCase(); try { con = L2Database.getConnection(); PreparedStatement ps = con .prepareStatement("SELECT superuser FROM account WHERE username LIKE ?"); ps.setString(1, line); ResultSet rs = ps.executeQuery(); if (!rs.next()) { acm.setUser(line); _log.info("Desired password:"); acm.setState(ManagerState.PASSWORD); } else { _log.info("User name already in use."); acm.setState(ManagerState.INITIAL_CHOICE); } rs.close(); ps.close(); } catch (SQLException e) { _log.error("Could not access database!", e); acm.setState(ManagerState.INITIAL_CHOICE); } finally { L2Database.close(con); } break; case PASSWORD: try { MessageDigest sha = MessageDigest.getInstance("SHA"); byte[] pass = sha.digest(line.getBytes("US-ASCII")); acm.setPass(HexUtil.bytesToHexString(pass)); } catch (NoSuchAlgorithmException e) { _log.fatal("SHA1 is not available!", e); Shutdown.exit(TerminationStatus.ENVIRONMENT_MISSING_COMPONENT_OR_SERVICE); } catch (UnsupportedEncodingException e) { _log.fatal("ASCII is not available!", e); Shutdown.exit(TerminationStatus.ENVIRONMENT_MISSING_COMPONENT_OR_SERVICE); } _log.info("Super user: [y/n]"); acm.setState(ManagerState.SUPERUSER); break; case SUPERUSER: try { if (line.length() != 1) throw new IllegalArgumentException("One char required."); else if (line.charAt(0) == 'y') acm.setSuper(true); else if (line.charAt(0) == 'n') acm.setSuper(false); else throw new IllegalArgumentException("Invalid choice."); _log.info("Date of birth: [yyyy-mm-dd]"); acm.setState(ManagerState.DOB); } catch (IllegalArgumentException e) { _log.info("[y/n]?"); } break; case DOB: try { Date d = Date.valueOf(line); if (d.after(new Date(System.currentTimeMillis()))) throw new IllegalArgumentException("Future date specified."); acm.setDob(d); _log.info("Ban reason ID or nothing:"); acm.setState(ManagerState.SUSPENDED); } catch (IllegalArgumentException e) { _log.info("[yyyy-mm-dd] in the past:"); } break; case SUSPENDED: try { if (line.length() > 0) { int id = Integer.parseInt(line); acm.setBan(L2BanReason.getById(id)); } else acm.setBan(null); try { con = L2Database.getConnection(); PreparedStatement ps = con.prepareStatement( "INSERT INTO account (username, password, superuser, birthDate, banReason) VALUES (?, ?, ?, ?, ?)"); ps.setString(1, acm.getUser()); ps.setString(2, acm.getPass()); ps.setBoolean(3, acm.isSuper()); ps.setDate(4, acm.getDob()); L2BanReason lbr = acm.getBan(); if (lbr == null) ps.setNull(5, Types.INTEGER); else ps.setInt(5, lbr.getId()); ps.executeUpdate(); _log.info("Account " + acm.getUser() + " has been registered."); ps.close(); } catch (SQLException e) { _log.error("Could not register an account!", e); } finally { L2Database.close(con); } acm.setState(ManagerState.INITIAL_CHOICE); } catch (NumberFormatException e) { _log.info("Ban reason ID or nothing:"); } break; case REMOVE: acm.setUser(line.toLowerCase()); try { con = L2Database.getConnection(); PreparedStatement ps = con.prepareStatement("DELETE FROM account WHERE username LIKE ?"); ps.setString(1, acm.getUser()); int cnt = ps.executeUpdate(); if (cnt > 0) _log.info("Account " + acm.getUser() + " has been removed."); else _log.info("Account " + acm.getUser() + " does not exist!"); ps.close(); } catch (SQLException e) { _log.error("Could not remove an account!", e); } finally { L2Database.close(con); } acm.setState(ManagerState.INITIAL_CHOICE); break; case PROMOTE: acm.setUser(line.toLowerCase()); try { con = L2Database.getConnection(); PreparedStatement ps = con .prepareStatement("UPDATE account SET superuser = ? WHERE username LIKE ?"); ps.setBoolean(1, true); ps.setString(2, acm.getUser()); int cnt = ps.executeUpdate(); if (cnt > 0) _log.info("Account " + acm.getUser() + " has been promoted."); else _log.info("Account " + acm.getUser() + " does not exist!"); ps.close(); } catch (SQLException e) { _log.error("Could not promote an account!", e); } finally { L2Database.close(con); } acm.setState(ManagerState.INITIAL_CHOICE); break; case DEMOTE: acm.setUser(line.toLowerCase()); try { con = L2Database.getConnection(); PreparedStatement ps = con .prepareStatement("UPDATE account SET superuser = ? WHERE username LIKE ?"); ps.setBoolean(1, false); ps.setString(2, acm.getUser()); int cnt = ps.executeUpdate(); if (cnt > 0) _log.info("Account " + acm.getUser() + " has been demoted."); else _log.info("Account " + acm.getUser() + " does not exist!"); ps.close(); } catch (SQLException e) { _log.error("Could not demote an account!", e); } finally { L2Database.close(con); } acm.setState(ManagerState.INITIAL_CHOICE); break; case UNBAN: acm.setUser(line.toLowerCase()); try { con = L2Database.getConnection(); PreparedStatement ps = con .prepareStatement("UPDATE account SET banReason = ? WHERE username LIKE ?"); ps.setNull(1, Types.INTEGER); ps.setString(2, acm.getUser()); int cnt = ps.executeUpdate(); if (cnt > 0) _log.info("Account " + acm.getUser() + " has been unbanned."); else _log.info("Account " + acm.getUser() + " does not exist!"); ps.close(); } catch (SQLException e) { _log.error("Could not demote an account!", e); } finally { L2Database.close(con); } acm.setState(ManagerState.INITIAL_CHOICE); break; case BAN: line = line.toLowerCase(); try { con = L2Database.getConnection(); PreparedStatement ps = con .prepareStatement("SELECT superuser FROM account WHERE username LIKE ?"); ps.setString(1, line); ResultSet rs = ps.executeQuery(); if (rs.next()) { acm.setUser(line); _log.info("Ban reason ID:"); acm.setState(ManagerState.REASON); } else { _log.info("Account does not exist."); acm.setState(ManagerState.INITIAL_CHOICE); } rs.close(); ps.close(); } catch (SQLException e) { _log.error("Could not access database!", e); acm.setState(ManagerState.INITIAL_CHOICE); } finally { L2Database.close(con); } break; case REASON: try { int ban = Integer.parseInt(line); con = L2Database.getConnection(); PreparedStatement ps = con .prepareStatement("UPDATE account SET banReason = ? WHERE username LIKE ?"); ps.setInt(1, ban); ps.setString(2, acm.getUser()); ps.executeUpdate(); _log.info("Account " + acm.getUser() + " has been banned."); ps.close(); } catch (NumberFormatException e) { _log.info("Ban reason ID:"); } catch (SQLException e) { _log.error("Could not ban an account!", e); } finally { L2Database.close(con); } acm.setState(ManagerState.INITIAL_CHOICE); break; default: line = line.toLowerCase(); if (line.equals("reg")) { _log.info("Desired user name:"); acm.setState(ManagerState.USER_NAME); } else if (line.equals("rem")) { _log.info("User name:"); acm.setState(ManagerState.REMOVE); } else if (line.equals("prom")) { _log.info("User name:"); acm.setState(ManagerState.PROMOTE); } else if (line.equals("dem")) { _log.info("User name:"); acm.setState(ManagerState.DEMOTE); } else if (line.equals("unban")) { _log.info("User name:"); acm.setState(ManagerState.UNBAN); } else if (line.equals("ban")) { _log.info("User name:"); acm.setState(ManagerState.BAN); } else if (line.equals("quit")) Shutdown.exit(TerminationStatus.MANUAL_SHUTDOWN); else _log.info("Incorrect command."); break; } } } catch (IOException e) { _log.fatal("Could not process input!", e); } finally { IOUtils.closeQuietly(br); } }
From source file:ch.bfh.evoting.verifier.Verifier.java
/** * This program is a verifier for MobiVote application with HKRS12 protocol * You have to indicate the XML file exported from the application as argument for this program. * You can also indicate the files of different participants. In this case, there will be checked if all files contain the same values. * @param args the file(s) containing the values of the protocol *///from ww w. j a v a 2 s .co m public static void main(String[] args) { /* * Reading files given as parameters */ if (args.length < 1) { //Not enough arguments System.out.println( "You must indicate the location of the XML file containing the data to verify! You can also indicate the files of different participants."); return; } else if (args.length > 1) { //Make a digest of all files and compare them List<byte[]> digests = new ArrayList<byte[]>(); for (String s : args) { try { MessageDigest md = MessageDigest.getInstance("SHA-256"); InputStream is = Files.newInputStream(Paths.get(s)); DigestInputStream dis = new DigestInputStream(is, md); @SuppressWarnings("unused") int numBytes = -1; while ((numBytes = dis.read()) != -1) { dis.read(); } byte[] digest = md.digest(); digests.add(digest); } catch (IOException e) { System.out.println("One of the given files does not exists!"); return; } catch (NoSuchAlgorithmException e1) { System.out.println("Unable to compute the digest of the file!"); return; } } System.out.print("Checking the similarity of the files..."); for (byte[] b : digests) { for (byte[] b2 : digests) { if (!Arrays.equals(b, b2)) { System.out.print("\t\t\t\t\t\t\t\t\t\tWRONG\n"); System.out.println( "The given files are not all identical! This means the content received by the participants was not the same."); return; } } } System.out.print("\t\t\t\t\t\t\t\t\t\tOK\n\n"); } else if (args.length == 1) { //Print a warning System.out.println( "BE CAREFUL: checking only one file ensure that the cryptographic values of the protocol are correct.\n" + "But, it does NOT ensure that all users have the same result. This could happen when a participant missed some messages.\n" + "This case is only covered by this verifier by giving multiple files as argument.\n"); } Serializer serializer = new Persister(); File source = new File(args[0]); poll = null; System.out.print("Reading file..."); try { poll = serializer.read(XMLPoll.class, source); System.out.print("\t\t\t\t\t\t\t\t\t\t\t\t\tOK\n"); } catch (Exception e) { System.out.print("\t\t\t\t\t\t\t\t\t\t\t\t\tFAILED\n"); e.printStackTrace(); return; } /* * Create the initializations needed by the protocol */ G_q = GStarModSafePrime.getInstance(new BigInteger(poll.getP())); Z_q = G_q.getZModOrder(); Zgroup = Z.getInstance(); generator = poll.getGenerator().getValue(G_q); representations = new Element[poll.getOptions().size()]; int i = 0; for (XMLOption op : poll.getOptions()) { representations[i] = op.getRepresentation().getValue(Z_q); i++; } System.out.println(); System.out.println("Verifying vote: \"" + poll.getQuestion() + "\""); /* * Verify the dependence between cryptographic values and the vote properties */ //Not used anymore, implicitly done with otherInputs of proofs //verifyDependencyTextCrypto(); /* * Verify the proofs for the user */ System.out.println(); System.out.println("Verifying the proof for the participants..."); a = new Element[poll.getParticipants().size()]; b = new Element[poll.getParticipants().size()]; h = new Element[poll.getParticipants().size()]; hHat = new Element[poll.getParticipants().size()]; hHatPowX = new Element[poll.getParticipants().size()]; proofForX = new Element[poll.getParticipants().size()]; validityProof = new Element[poll.getParticipants().size()]; equalityProof = new Element[poll.getParticipants().size()]; Tuple pollTuple = preparePollOtherInput(poll, representations, generator); int k = 0; for (XMLParticipant p : poll.getParticipants()) { System.out.println("\tParticipant " + p.getIdentification() + " (" + p.getUniqueId() + ")"); if (p.getAi() != null) { a[k] = p.getAi().getValue(G_q); if (DEBUG) System.out.println("Value a: " + a[k]); } if (p.getHi() != null) { h[k] = p.getHi().getValue(G_q); if (DEBUG) System.out.println("Value h: " + h[k]); } if (p.getBi() != null) { b[k] = p.getBi().getValue(G_q); if (DEBUG) System.out.println("Value b: " + b[k]); } if (p.getHiHat() != null) { hHat[k] = p.getHiHat().getValue(G_q); if (DEBUG) System.out.println("Value h hat: " + hHat[k]); } if (p.getHiHatPowXi() != null) { hHatPowX[k] = p.getHiHatPowXi().getValue(G_q); if (DEBUG) System.out.println("Value h hat ^ x: " + hHatPowX[k]); } if (p.getProofForXi() != null) { ProductGroup group = ProductGroup.getInstance(G_q, Zgroup, Z_q); proofForX[k] = p.getProofForXi().getValue(group); } if (p.getProofValidVote() != null) { Group[] tripleElement1Groups = new Group[poll.getOptions().size()]; Group[] tripleElement2Groups = new Group[poll.getOptions().size()]; Group[] tripleElement3Groups = new Group[poll.getOptions().size()]; for (i = 0; i < poll.getOptions().size(); i++) { tripleElement1Groups[i] = ProductGroup.getInstance(G_q, G_q); tripleElement2Groups[i] = Zgroup; tripleElement3Groups[i] = Z_q; } ProductGroup tripleElement1 = ProductGroup.getInstance(tripleElement1Groups); ProductGroup tripleElement2 = ProductGroup.getInstance(tripleElement2Groups); ProductGroup tripleElement3 = ProductGroup.getInstance(tripleElement3Groups); ProductGroup group = ProductGroup.getInstance(tripleElement1, tripleElement2, tripleElement3); validityProof[k] = p.getProofValidVote().getValue(group); if (DEBUG) System.out.println("Proof of validity: " + validityProof[k]); } if (p.getProofForHiHat() != null) { recoveryNeeded = true; ProductGroup group = ProductGroup.getInstance(ProductGroup.getInstance(G_q, G_q), Zgroup, Z_q); equalityProof[k] = p.getProofForHiHat().getValue(group); } Tuple participantTuple = prepareParticipantOtherInput(p); otherInput = Tuple.getInstance(participantTuple, pollTuple); /* * Verify proof of knowledge */ System.out.print("\t\tVerifying proof of knowledge of x value..."); verifyProofOfKnowledgeOfX(k); /* * Verify proof of validity */ if (validityProof[k] != null) { System.out.print("\t\tVerifying proof of valid vote..."); verifyValidityProof(k); } /* * Verify proof of equality */ if (equalityProof[k] != null) { System.out.print("\t\tVerifying proof of equality between discrete logarithm g^x and h_hat^x..."); verifyEqualityProof(k); } k++; } /** * Computing the result */ System.out.println(); System.out.print("Computing the result..."); computeResult(); }
From source file:MD5.java
public static void main(String[] args) { //String password = args[0]; String password = "test"; MessageDigest digest = null;//from ww w . j a v a 2 s . c om try { digest = MessageDigest.getInstance("MD5"); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } try { digest.update(password.getBytes("UTF-8")); } catch (UnsupportedEncodingException ex) { ex.printStackTrace(); } byte[] rawData = digest.digest(); StringBuffer printable = new StringBuffer(); for (int i = 0; i < rawData.length; i++) { printable.append(carr[((rawData[i] & 0xF0) >> 4)]); printable.append(carr[(rawData[i] & 0x0F)]); } String phpbbPassword = printable.toString(); System.out.println("PHPBB : " + phpbbPassword); System.out.println("MVNFORUM : " + getMD5_Base64(password)); System.out.println("PHPBB->MVNFORUM : " + getBase64FromHEX(phpbbPassword)); }
From source file:net.sf.jsignpdf.InstallCert.java
/** * The main - whole logic of Install Cert Tool. * /*w w w . j a v a2s . c o m*/ * @param args * @throws Exception */ public static void main(String[] args) { String host; int port; char[] passphrase; System.out.println("InstallCert - Install CA certificate to Java Keystore"); System.out.println("====================================================="); final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); try { if ((args.length == 1) || (args.length == 2)) { String[] c = args[0].split(":"); host = c[0]; port = (c.length == 1) ? 443 : Integer.parseInt(c[1]); String p = (args.length == 1) ? "changeit" : args[1]; passphrase = p.toCharArray(); } else { String tmpStr; do { System.out.print("Enter hostname or IP address: "); tmpStr = StringUtils.defaultIfEmpty(reader.readLine(), null); } while (tmpStr == null); host = tmpStr; System.out.print("Enter port number [443]: "); tmpStr = StringUtils.defaultIfEmpty(reader.readLine(), null); port = tmpStr == null ? 443 : Integer.parseInt(tmpStr); System.out.print("Enter keystore password [changeit]: "); tmpStr = reader.readLine(); String p = "".equals(tmpStr) ? "changeit" : tmpStr; passphrase = p.toCharArray(); } char SEP = File.separatorChar; final File dir = new File(System.getProperty("java.home") + SEP + "lib" + SEP + "security"); final File file = new File(dir, "cacerts"); System.out.println("Loading KeyStore " + file + "..."); InputStream in = new FileInputStream(file); KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType()); ks.load(in, passphrase); in.close(); SSLContext context = SSLContext.getInstance("TLS"); TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); tmf.init(ks); X509TrustManager defaultTrustManager = (X509TrustManager) tmf.getTrustManagers()[0]; SavingTrustManager tm = new SavingTrustManager(defaultTrustManager); context.init(null, new TrustManager[] { tm }, null); SSLSocketFactory factory = context.getSocketFactory(); System.out.println("Opening connection to " + host + ":" + port + "..."); SSLSocket socket = (SSLSocket) factory.createSocket(host, port); socket.setSoTimeout(10000); try { System.out.println("Starting SSL handshake..."); socket.startHandshake(); socket.close(); System.out.println(); System.out.println("No errors, certificate is already trusted"); } catch (SSLException e) { System.out.println(); System.out.println("Certificate is not yet trusted."); // e.printStackTrace(System.out); } X509Certificate[] chain = tm.chain; if (chain == null) { System.out.println("Could not obtain server certificate chain"); return; } System.out.println(); System.out.println("Server sent " + chain.length + " certificate(s):"); System.out.println(); MessageDigest sha1 = MessageDigest.getInstance("SHA1"); MessageDigest md5 = MessageDigest.getInstance("MD5"); for (int i = 0; i < chain.length; i++) { X509Certificate cert = chain[i]; System.out.println(" " + (i + 1) + " Subject " + cert.getSubjectDN()); System.out.println(" Issuer " + cert.getIssuerDN()); sha1.update(cert.getEncoded()); System.out.println(" sha1 " + toHexString(sha1.digest())); md5.update(cert.getEncoded()); System.out.println(" md5 " + toHexString(md5.digest())); System.out.println(); } System.out.print("Enter certificate to add to trusted keystore or 'q' to quit [1]: "); String line = reader.readLine().trim(); int k = -1; try { k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1; } catch (NumberFormatException e) { } if (k < 0 || k >= chain.length) { System.out.println("KeyStore not changed"); } else { try { System.out.println("Creating keystore backup"); final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss"); final File backupFile = new File(dir, CACERTS_KEYSTORE + "." + dateFormat.format(new java.util.Date())); final FileInputStream fis = new FileInputStream(file); final FileOutputStream fos = new FileOutputStream(backupFile); IOUtils.copy(fis, fos); fis.close(); fos.close(); } catch (Exception e) { e.printStackTrace(); } System.out.println("Installing certificate..."); X509Certificate cert = chain[k]; String alias = host + "-" + (k + 1); ks.setCertificateEntry(alias, cert); OutputStream out = new FileOutputStream(file); ks.store(out, passphrase); out.close(); System.out.println(); System.out.println(cert); System.out.println(); System.out.println("Added certificate to keystore '" + file + "' using alias '" + alias + "'"); } } catch (Exception e) { System.out.println(); System.out.println("----------------------------------------------"); System.out.println("Problem occured during installing certificate:"); e.printStackTrace(); System.out.println("----------------------------------------------"); } System.out.println("Press Enter to finish..."); try { reader.readLine(); } catch (IOException e) { e.printStackTrace(); } }
From source file:Main.java
public static byte[] md5Byte(String encryptStr) throws Exception { MessageDigest md = MessageDigest.getInstance("MD5"); md.update(encryptStr.getBytes("UTF-8")); return md.digest(); }
From source file:Main.java
public static String md5(String str) throws Exception { MessageDigest md = MessageDigest.getInstance("MD5"); md.update(str.getBytes());//from w ww . j a va 2 s . c o m byte byteData[] = md.digest(); StringBuffer sb = new StringBuffer(); for (int i = 0; i < byteData.length; i++) { sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1)); } return sb.toString(); }
From source file:Main.java
public static String generateMd5Hash(String str) { try {//from w ww.j a va 2 s .c om MessageDigest m = MessageDigest.getInstance("MD5"); m.update(str.getBytes("UTF8")); byte s[] = m.digest(); String result = ""; for (int i = 0; i < s.length; i++) { result += Integer.toHexString((0x000000ff & s[i]) | 0xffffff00).substring(6); } return result; } catch (Exception e) { e.printStackTrace(); } return null; }
From source file:Main.java
public static String md5(String str) { try {/*from ww w .ja va2 s . c o m*/ MessageDigest md = MessageDigest.getInstance("MD5"); md.update(str.getBytes()); byte[] b = md.digest(); StringBuffer sb = new StringBuffer(); for (int i = 0; i < b.length; i++) { int v = (int) b[i]; v = v < 0 ? 0x100 + v : v; String cc = Integer.toHexString(v); if (cc.length() == 1) sb.append('0'); sb.append(cc); } return sb.toString(); } catch (Exception e) { } return ""; }
From source file:Main.java
public static byte[] md5Digest(byte[] password) throws Exception { try {// w w w . j av a 2 s .com MessageDigest alg = MessageDigest.getInstance("MD5"); alg.update(password); byte[] digest = alg.digest(); return digest; } catch (Exception e) { throw new Exception(e); } }
From source file:Main.java
static public String digest(String input) { try {/*w w w . ja v a 2 s. c o m*/ MessageDigest md = MessageDigest.getInstance("MD5"); return new BigInteger(1, md.digest(input.getBytes())).toString(16).toUpperCase(); } catch (Exception e) { return null; } }