问题描述
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
解决方法
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