Question

我想创建SSL连接。我创建了密钥库。并尝试使用x509。

 final KeyManagerFactory kmf = KeyManagerFactory.getInstance("X509");

但运行后我在控制台上遇到异常。

java.security.NoSuchAlgorithmException：X509 KeyManagerFactory不可用 at sun.security.jca.GetInstance.getInstance（Unknown Source） at javax.net.ssl.KeyManagerFactory.getInstance（Unknown Source）SSLContext sc = SSLContext.getInstance（connectionType）; final char [] keyPassPhrase =＆＃34; changeit＆＃34; .toCharArray（）; // String [] array = Security.getProviders（）; final KeyStore ks = KeyStore.getInstance（＆＃34; jks＆＃34;）;

        ks.load(new FileInputStream("ClientKeyStore"), keyPassPhrase);
        provider();
        final KeyManagerFactory kmf = KeyManagerFactory.getInstance("X509"); // this line is problem

        // SunX509 : supporting only: [TLSv1, TLSv1.1, TLSv1.2]
        kmf.init(ks, keyPassPhrase);

        sc.init(kmf.getKeyManagers(), new TrustManager[] {
                new X509TrustManager(){
                    public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                        return null;
                    }
                    @Override
                    public void checkClientTrusted(X509Certificate[] arg0, String arg1)
                            throws CertificateException {

                    }
                    public void checkServerTrusted(X509Certificate[] arg0, String arg1)
                            throws CertificateException {
                    }
                }
        },new SecureRandom());
        SSLSocketFactory factory = sc.getSocketFactory();
        SSLSocket socket=null;
        try{
            //socket = (SSLSocket) factory.createSocket("XXXX",xxxx);/
            socket = (SSLSocket) factory.createSocket(ipAddress, Integer.parseInt(ports[portIndex]));

            //convert to array
            String[] cipherSelectedArray;
            if(isSupported == 1 ) {
                cipherSelectedArray = new String[] {msupportedcipherList.get(cipherIndex).trim()};
            }
            else {
                cipherSelectedArray = new String[] {mnotSupportedcipherList.get(cipherIndex).trim()};
            }

            String []mselectedSSLOrTLSVersionArrray = new String[] {mselectedSSLOrTLSVersion};   // if passing these --> getting connection timeout

            socket.setEnabledProtocols(mselectedSSLOrTLSVersionArrray);
            socket.setEnabledCipherSuites(cipherSelectedArray);
            for(int i = 0; i<cipherSelectedArray.length ; i++) {
                //System.out.println("ciphers are :" +  cipherSelectedArray[i]);
            }


            socket.setSoTimeout(15000);

            socket.addHandshakeCompletedListener(new HandshakeCompletedListener() {

                @Override
                public void handshakeCompleted(HandshakeCompletedEvent event) {
                    ////System.out.println("completed");

                }
            });



            socket.startHandshake(); //handshake                                            as "SunX509" does not support SSL. I need to create above one. Can someone help.   And also with "SunX509" i am getting                                              java.lang.IllegalArgumentException: Cannot support TLS_RSA_WITH_AES_256_CBC_SHA with currently installed providers problem with some ciphers. please help

Answer 1

算法提供程序无法识别您使用的参数X509。

正如getInstance(String algorithm)所述，原因很清楚。

NoSuchAlgorithmException - 如果没有Provider支持指定算法的KeyManagerFactorySpi实现。

标准算法描述为here

我猜他们在PKIX, SunX509

中支持KeyManagerFactory这两个算法

因此，您必须使用SunX509代替X509。

See the table here

Answer 2

阅读堆栈跟踪告诉您的内容：

java.security.NoSuchAlgorithmException：X509 KeyManagerFactory不可用

您正在使用的安全提供程序无法使用X509算法。但是，以下代码应该适合您：

final KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");

请查看此Code Ranch article，其中讨论了您的问题，并说明了如何找出提供商提供的安全算法。

Answer 3

使用“ SunX509”的问题是它特定于Oracle JRE，在IBM JRE（默认值为“ IbmX509”）中不起作用。一个与供应商无关的更好的解决方案是：

KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());

默认算法由<JRE_HOME>/lib/security/java.security中的安全属性“ ssl.keyManagerFactory.algorithm”定义，默认情况下在Oracle中为“ SunX509”，在IBM JRE中为“ IbmX509”（至少对于Java 8）。

java.security.NoSuchAlgorithmException：X509 KeyManagerFactory不可用

3 个答案: