如何创建 SSL Socket 连接?
我真的需要创建一个 keystore 吗?这个 keystore 应该与我的所有客户端应用程序共享?
我已经使用以下代码创建了一个服务器:
SSLServerSocketFactory sslserversocketfactory = (SSLServerSocketFactory) SSLServerSocketFactory
.getDefault();
SSLServerSocket sslserversocket = (SSLServerSocket) sslserversocketfactory
.createServerSocket(ServerProperties.getInstance()
.getVSSPAuthenticationPort());
我已经使用以下代码在 android 上创建了一个客户端:
SSLSocketFactory sslsocketfactory = (SSLSocketFactory) SSLSocketFactory
.getDefault();
SSLSocket sslsocket = (SSLSocket) sslsocketfactory.createSocket(
host, authPort);
sslsocket.startHandshake();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(
sslsocket.getOutputStream()));
BufferedReader reader = new BufferedReader(new InputStreamReader(
sslsocket.getInputStream()));
但是当我尝试连接时,抛出以下错误:
javax.net.ssl.SSLHandshakeException: no cipher suites in common
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1886)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:266)
at sun.security.ssl.ServerHandshaker.chooseCipherSuite(ServerHandshaker.java:894)
at sun.security.ssl.ServerHandshaker.clientHello(ServerHandshaker.java:622)
at sun.security.ssl.ServerHandshaker.processMessage(ServerHandshaker.java:167)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
最佳答案
您需要证书来建立 ssl 连接,您可以在 keystore 中加载证书,也可以加载证书本身。我将展示一些关于 keystore 选项的示例。
您的代码需要一些参数才能运行:
java -Djavax.net.ssl.keyStore=keyStoreFile -Djavax.net.ssl.keyStorePassword=keystorePassword Server
您也可以使用 java 代码加载 keystore ,最简单的解决方案是设置系统属性:
System.setProperty("javax.net.ssl.keyStore", 'keystoreFile');
System.setProperty("javax.net.ssl.keyStorePassword", 'keystorePassword ');
你也可以用不同的方式加载 keystore ,它更复杂,但你有能力做更复杂的事情:
KeyStore ks = KeyStore.getInstance("JKS");
ks.load(new FileInputStream("keystoreFile"), "keystorePassword".toCharArray());
KeyManagerFactory kmf = KeyManagerFactory.getInstance("X509");
kmf.init(ks, "keystorePassword".toCharArray());
TrustManagerFactory tmf = TrustManagerFactory.getInstance("X509");
tmf.init(ks);
SSLContext sc = SSLContext.getInstance("TLS");
TrustManager[] trustManagers = tmf.getTrustManagers();
sc.init(kmf.getKeyManagers(), trustManagers, null);
SSLServerSocketFactory ssf = sc.getServerSocketFactory();
SSLServerSocket s = (SSLServerSocket) ssf.createServerSocket(serverport);
SSLSocket c = (SSLSocket) s.accept();
对于客户端,代码最后几行有一些更改,最后 3 行将替换为:
SSLSocketFactory ssf = sc.getSocketFactory();
SSLSocket s = (SSLSocket) ssf.createSocket(serverip, serverport);
s.startHandshake();
如果您想为 android 加载 keystore ,则类型必须是“BKS”而不是“JKS”。您可以轻松找到用于创建 keystore 的资源。
关于java - SSL 套接字连接,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18787419/