protected boolean testKey() {
String data = UID.random(24);
byte[] bb = RSA.encode(data.getBytes(), TConn.pub_key);
if (bb != null) {
bb = RSA.decode(bb, TConn.pri_key);
if (bb != null && data.equals(new String(bb))) {
return true;
}
}
return false;
}
/** Inits the. */
public static synchronized void init() {
if (inited) {
return;
}
_conf = Config.getConfig();
/** initialize app command */
Command.init();
/** initialize the RSA key, hardcode 2048 bits */
TConn.pub_key = SystemConfig.s("pub_key", null);
if (TConn.pub_key == null) {
Key k = RSA.generate(2048);
TConn.pri_key = k.pri_key;
TConn.pub_key = k.pub_key;
/** set back in database */
SystemConfig.setConfig("pri_key", TConn.pri_key);
SystemConfig.setConfig("pub_key", TConn.pub_key);
} else {
/** get from the database */
TConn.pri_key = SystemConfig.s("pri_key", null);
}
inited = true;
}
public String getEncryptedSharedSecret(String sharedSecret) {
byte[] bytes = sharedSecret.getBytes();
int i = 0;
String encSecret = "";
BigInteger givenMessage, p1, q1, e1;
p1 = new BigInteger("13");
q1 = new BigInteger("19");
e1 = new BigInteger("5");
RSA rsa = new RSA(p1, q1, e1);
while (i < bytes.length) {
givenMessage = BigInteger.valueOf(bytes[i]);
BigInteger encryptMessage =
rsa.rsaEncrypt(givenMessage, new BigInteger("5"), new BigInteger("247"));
encSecret = encSecret + new String(encryptMessage.toByteArray());
i++;
}
return encSecret;
}
/**
* Instantiates a new MDC server.
*
* @param host the host
* @param port the port
*/
protected MDCServer(String host, int port) {
_conf = Config.getConfig();
address = (host == null) ? new InetSocketAddress(port) : new InetSocketAddress(host, port);
/** initialize app command */
Command.init();
/** initialize the connection center */
TConnCenter.init(_conf, port);
synchronized (_conf) {
/** load public key from database */
TConn.pub_key = SystemConfig.s("pub_key", null);
TConn.pri_key = SystemConfig.s("pri_key", null);
/** initialize the RSA key, hardcode 2048 bits */
if (TConn.pub_key == null
|| TConn.pri_key == null
|| "".equals(TConn.pub_key)
|| "".equals(TConn.pri_key)) {
/** print out the old state */
log.warn(
"the pub_key or pri_key missed, the old state are pub_key:["
+ TConn.pub_key
+ "], pri_key:["
+ TConn.pri_key
+ "]");
Key k = RSA.generate(2048);
TConn.pri_key = k.pri_key;
TConn.pub_key = k.pub_key;
/** print out the new public key */
log.warn("create new RSA key pair, pub_key:[" + TConn.pub_key + ']');
/** set back in database */
SystemConfig.setConfig("pri_key", TConn.pri_key);
SystemConfig.setConfig("pub_key", TConn.pub_key);
}
MAX_SIZE = SystemConfig.i("mdc.max_size", MAX_SIZE);
}
}
public static void main(String[] args) {
RSA myRSA = new RSA();
String text = "Ὅσον ζῇς φαίνου";
System.out.println(text);
System.out.println(myRSA.decrypt(myRSA.encrypt(text, myRSA.getPublicKey())));
}