apache oltu:
accessToken=md5(UUID.randomUUID().toString())
refreshToken=md5(UUID.randomUUID().toString())
tomcat:
sessinid : SecureRandom SHA1PRNG
java:
private static String genKEY(String algorithm) throws NoSuchAlgorithmException{ KeyGenerator kg = KeyGenerator.getInstance(algorithm);//HmacMD5,HmacSHA1,AES kg.init(128);// How many bits to generate, just modify here to 128, 192 or 256 SecretKey sk = kg.generateKey(); byte[] data = sk.getEncoded(); return new HexBinaryAdapter().marshal(data); }