189 8069 5689

java中怎么DH非对称加密算法-创新互联

java中怎么DH非对称加密算法,针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。

十余年的滨海网站建设经验,针对设计、前端、开发、售后、文案、推广等六对一服务,响应快,48小时及时工作处理。成都全网营销推广的优势是能够根据用户设备显示端的尺寸不同,自动调整滨海建站的显示方式,使网站能够适用不同显示终端,在浏览器中调整网站的宽度,无论在任何一种浏览器上浏览网站,都能展现优雅布局与设计,从而大程度地提升浏览体验。创新互联从事“滨海网站设计”,“滨海网站推广”以来,每个客户项目都认真落实执行。

初始化发送方密钥:


KeyPairGenerator sendKeyPairGenerator = KeyPairGenerator.getInstance("DH");      sendKeyPairGenerator.initialize(512);      KeyPair sendKeyPair = sendKeyPairGenerator.generateKeyPair();      byte[] sendPublicKeyEnc = sendKeyPair.getPublic().getEncoded();//生成发送方公钥,发送给接收方(网络、文件...)

初始化接收方密钥:

KeyFactory receiverKeyFactory = KeyFactory.getInstance("DH");      X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(sendPublicKeyEnc);      PublicKey receivePublicKey = receiverKeyFactory.generatePublic(x509EncodedKeySpec);      DHParameterSpec dhParameterSpec = ((DHPublicKey)receivePublicKey).getParams();      KeyPairGenerator receiverKeyPairGenerator = KeyPairGenerator.getInstance("DH");      receiverKeyPairGenerator.initialize(dhParameterSpec);      KeyPair receiverKeyPair = receiverKeyPairGenerator.generateKeyPair();      PrivateKey receiverPrivateKey = receiverKeyPair.getPrivate();      byte[] receiverPublicKeyEnc = receiverKeyPair.getPublic().getEncoded();

构建接收方密钥:

KeyAgreement receiverKeyAgreement = KeyAgreement.getInstance("DH");      receiverKeyAgreement.init(receiverPrivateKey);      receiverKeyAgreement.doPhase(receivePublicKey, true);            SecretKey receiverDESKey = receiverKeyAgreement.generateSecret("DES");//接收方Key

构建发送方密钥:

KeyFactory sendKeyFactory = KeyFactory.getInstance("DH");      x509EncodedKeySpec = new X509EncodedKeySpec(receiverPublicKeyEnc);      PublicKey sendPublicKey = sendKeyFactory.generatePublic(x509EncodedKeySpec);            KeyAgreement sendKeyAgreement = KeyAgreement.getInstance("DH");      sendKeyAgreement.init(sendKeyPair.getPrivate());      sendKeyAgreement.doPhase(sendPublicKey, true);            SecretKey sendDESKey = sendKeyAgreement.generateSecret("DES");//发送方Key

发送方加密:

Cipher sendCipher = Cipher.getInstance("DES");      sendCipher.init(Cipher.ENCRYPT_MODE, sendDESKey);      byte[] sendResult = sendCipher.doFinal(src.getBytes());      System.out.println("sendResult :"+Hex.encodeHexString(sendResult));

接收方解密:

Cipher receiverCipher = Cipher.getInstance("DES");      receiverCipher.init(Cipher.DECRYPT_MODE, receiverDESKey);      byte[] receiverResult = receiverCipher.doFinal(sendResult);      System.out.println("receiverResult : "+new String (receiverResult));

关于java中怎么DH非对称加密算法问题的解答就分享到这里了,希望以上内容可以对大家有一定的帮助,如果你还有很多疑惑没有解开,可以关注创新互联行业资讯频道了解更多相关知识。


网站名称:java中怎么DH非对称加密算法-创新互联
本文地址:http://cdxtjz.cn/article/dsjsgj.html

其他资讯