Diffie-Hellman密钥交换，不同的共享机密

如何解决Diffie-Hellman密钥交换，不同的共享机密

我为爱丽丝实现了以下代码，鲍勃（Bob）有一个类，除了一些变量名更改外，它是相同的：

public class Alice {

private PublicKey publickey;
private KeyAgreement keyAgreement;
private SecretKey diffieSecretKey;
private SecretKey aesSecretKey;
private byte[] sharedsecret;
private byte[] aesKey;
private byte[] bobAesKey;
private byte[] aesEncryptedHello;
private byte[] encryptedaliceAesKey;


public PublicKey generateDiffieKeys() {
    try {
        KeyPairGenerator aliceKpairGen = KeyPairGenerator.getInstance("EC");
        aliceKpairGen.initialize(128);
        KeyPair kp = aliceKpairGen.generateKeyPair();
        publickey = kp.getPublic();
        keyAgreement = KeyAgreement.getInstance("ECDH");
        keyAgreement.init(kp.getPrivate());

    } catch (NoSuchAlgorithmException | InvalidKeyException e) {
        e.printstacktrace();
    }
    return publickey;
}

public void recievePubKeyAndGenSharedKey(PublicKey aKey) {
    try {
        keyAgreement.doPhase(aKey,true);
        sharedsecret = keyAgreement.generateSecret();
        System.out.println(sharedsecret.toString());
    } catch (InvalidKeyException e) {
        e.printstacktrace();
    }

}

这是我传递公钥的主要途径：

public class CoreCryptography {
public static void main(String[] args) throws Exception {
    Bob bob = new Bob();
    Alice alice = new Alice();

    PublicKey alicePubKey = alice.generateDiffieKeys();
    PublicKey bobPubKey = bob.generateDiffieKeys();

    alice.recievePubKeyAndGenSharedKey(bobPubKey);
    bob.recievePubKeyAndGenSharedKey(alicePubKey);

在通过时，公钥是正确的，并且在Bob中实现了完全相同的代码，有人知道为什么共享密钥不匹配吗？

[B @ 57baeedf

[B @ 343f4d3d