List of usage examples for java.security SecureRandom SecureRandom
public SecureRandom()
From source file:com.jsonstore.util.JSONStoreUtil.java
public static byte[] generateLocalKey(int numBytes) { byte[] randBytes = new byte[numBytes]; (new SecureRandom()).nextBytes(randBytes); return randBytes; }
From source file:com.vmware.admiral.auth.lightwave.pc.X509CertificateHelper.java
public X509Certificate generateX509Certificate(String keyPairAlg, String sigAlg) throws NoSuchAlgorithmException, CertificateException, OperatorCreationException { KeyPairGenerator keyGen = KeyPairGenerator.getInstance(keyPairAlg); keyGen.initialize(1024, new SecureRandom()); KeyPair clientKeyPair = keyGen.generateKeyPair(); String solutionUser = "oidc.client" + UUID.randomUUID().toString(); return generateCertificate(clientKeyPair, solutionUser, sigAlg); }
From source file:net.firejack.platform.web.security.x509.KeyUtils.java
public static KeyPair generate(File keystore) { if (keystore == null) { throw new IllegalArgumentException("Key Store file should not be null."); }/*w w w . j a va 2s. c o m*/ try { KeyStore ks = KeyStore.getInstance("JKS", "SUN"); if (keystore.exists()) { FileInputStream stream = new FileInputStream(keystore); ks.load(stream, SECRET); IOUtils.closeQuietly(stream); } else { ks.load(null, SECRET); } if (ks.containsAlias(ALIAS)) { PrivateKey privateKey = (PrivateKey) ks.getKey(ALIAS, SECRET); PublicKey publicKey = ks.getCertificate(ALIAS).getPublicKey(); return new KeyPair(publicKey, privateKey); } else { KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA"); generator.initialize(KEYSIZE, new SecureRandom()); return generator.generateKeyPair(); } } catch (Throwable th) { logger.error("Failed to initialize key store"); throw new OpenFlameRuntimeException(th.getMessage(), th); } }
From source file:com.blackcrowsys.sinscrypto.AesKeyGenerator.java
@Override public String generateIV() { SecureRandom random = new SecureRandom(); byte[] bytes = new byte[IVSIZE]; random.nextBytes(bytes);/*from w w w. j a va 2 s.c o m*/ return Hex.encodeHexString(bytes); }
From source file:io.kodokojo.service.redis.AbstractRedisStore.java
public AbstractRedisStore(Key key, String host, int port) { if (key == null) { throw new IllegalArgumentException("key must be defined."); }/*from w ww . j av a2s . co m*/ if (isBlank(host)) { throw new IllegalArgumentException("host must be defined."); } this.key = key; pool = createJedisPool(host, port); try { messageDigest = MessageDigest.getInstance("SHA-1"); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("Unable to get instance of SHA-1 digest"); } SecureRandom secureRandom = new SecureRandom(); saltKey = new BigInteger(128, secureRandom).toString(10); }
From source file:club.jmint.crossing.specs.Security.java
public static String desEncrypt(String data, String key) throws CrossException { String ret = null;/*w w w . j a v a 2s . co m*/ try { DESKeySpec desKey = new DESKeySpec(key.getBytes("UTF-8")); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(desKey); Cipher cipher = Cipher.getInstance(CIPHER_DES_ALGORITHM); SecureRandom random = new SecureRandom(); cipher.init(Cipher.ENCRYPT_MODE, securekey, random); byte[] results = cipher.doFinal(data.getBytes("UTF-8")); ret = Base64.encodeBase64String(results); } catch (Exception e) { CrossLog.printStackTrace(e); throw new CrossException(ErrorCode.COMMON_ERR_ENCRYPTION.getCode(), ErrorCode.COMMON_ERR_ENCRYPTION.getInfo()); } return ret; }
From source file:com.mastfrog.scamper.ProtocolModule.java
public ProtocolModule(int bossThreads, int workerThreads, DataEncoding useBson) { this.bossThreads = bossThreads; this.workerThreads = workerThreads; this.encoding = useBson; secureRandom = new SecureRandom(); rand = new Random(secureRandom.nextLong()); }
From source file:com.cyberninjas.xerobillableexpenses.util.Settings.java
public Settings() { try {/*from w w w . j a v a 2 s.co m*/ String parentClass = new Exception().getStackTrace()[1].getClassName(); this.prefs = Preferences.userNodeForPackage(Class.forName(parentClass)); Random r = new SecureRandom(); //Set IV this.iv = prefs.getByteArray("DRUGS", null); //Pick Random PWD byte[] b = new byte[128]; r.nextBytes(b); MessageDigest sha = MessageDigest.getInstance("SHA-1"); sha.update(b); String sHash = new String(Base64.encodeBase64(sha.digest())); String password = prefs.get("LAYOUT", sHash); if (password.equals(sHash)) prefs.put("LAYOUT", sHash); //Keep 'em Guessing r.nextBytes(b); sha.update(b); prefs.put("PASSWORD", new String(Base64.encodeBase64(sha.digest()))); //Set Random Salt byte[] tSalt = new byte[8]; r.nextBytes(tSalt); byte[] salt = prefs.getByteArray("HIMALAYAN", tSalt); if (Arrays.equals(salt, tSalt)) prefs.putByteArray("HIMALAYAN", salt); /* Derive the key, given password and salt. */ SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1"); KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 65536, 128); SecretKey tmp = factory.generateSecret(spec); this.secret = new SecretKeySpec(tmp.getEncoded(), "AES"); cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(RSAx509CertGen.class.getName()).log(Level.SEVERE, null, ex); } catch (InvalidKeySpecException ex) { Logger.getLogger(RSAx509CertGen.class.getName()).log(Level.SEVERE, null, ex); } catch (Exception ex) { Logger.getLogger(RSAx509CertGen.class.getName()).log(Level.SEVERE, null, ex); } }
From source file:com.znsx.util.licence.LicenceUtil.java
/** * ?DSA??p,q,g,j,x,y/*ww w .j av a2 s. com*/ * * @param seed * ?? * @throws Exception * @author huangbuji * <p /> * Create at 2014-2-8 ?4:45:26 */ @SuppressWarnings("restriction") public static void genKey(String seed) throws Exception { KeyPairGenerator keygen = KeyPairGenerator.getInstance("DSA"); SecureRandom random = new SecureRandom(); random.setSeed(seed.getBytes("utf8")); keygen.initialize(1024, random); KeyPair keyPair = keygen.generateKeyPair(); DSAPublicKeyImpl publicKey = (DSAPublicKeyImpl) keyPair.getPublic(); DSAPrivateKey privateKey = (DSAPrivateKey) keyPair.getPrivate(); DSAParams dsaParams = privateKey.getParams(); Base64 base64 = new Base64(); String p = new String(base64.encode(dsaParams.getP().toByteArray()), "utf8"); String q = new String(base64.encode(dsaParams.getQ().toByteArray()), "utf8"); String g = new String(base64.encode(dsaParams.getG().toByteArray()), "utf8"); String x = new String(base64.encode(privateKey.getX().toByteArray()), "utf8"); String y = new String(base64.encode(publicKey.getY().toByteArray()), "utf8"); System.out.println("P: " + p); System.out.println("Q: " + q); System.out.println("G: " + g); System.out.println("X: " + x); System.out.println("Y: " + y); String publicKeyString = new String(base64.encode(publicKey.getEncoded()), "utf8"); String privateKeyString = new String(base64.encode(privateKey.getEncoded()), "utf8"); System.err.println("public: " + publicKeyString); System.err.println("private: " + privateKeyString); File publicFile = new File("D:/binPublic.ky"); File privateFile = new File("D:/binPrivate.ky"); FileOutputStream out = new FileOutputStream(publicFile); out.write(publicKey.getEncoded()); out.flush(); out.close(); out = new FileOutputStream(privateFile); out.write(privateKey.getEncoded()); out.flush(); out.close(); }
From source file:org.cloudfoundry.identity.uaa.login.feature.ChangePasswordIT.java
@Before public void setUp() throws Exception { int randomInt = new SecureRandom().nextInt(); String adminAccessToken = testClient.getOAuthAccessToken("admin", "adminsecret", "client_credentials", "clients.read clients.write clients.secret"); String scimClientId = "scim" + randomInt; testClient.createScimClient(adminAccessToken, scimClientId); String scimAccessToken = testClient.getOAuthAccessToken(scimClientId, "scimsecret", "client_credentials", "scim.read scim.write password.write"); userEmail = "user" + randomInt + "@example.com"; testClient.createUser(scimAccessToken, userEmail, userEmail, "secret", true); }