我以为我遇到了和其他人一样的问题，我一直在经历无数类似的问题和潜在的解决方案，但没有运气。

我使用的信任库是 cacerts，位于 Java 1.6.0 JRE 的 lib/security 中(build 1.6.0_20-b02...这可能是问题的根源吗？)。我也尝试过 jssecacerts。

使用 InstallCert(根据发布的其他类似问题)，我可以看到我的证书实际上已安装且有效(并且我已将其删除、重新导入等以确保我看到正确的数据):

java InstallCert <my host name>
Loading KeyStore jssecacerts...
Opening connection to <my host name>:443...
Starting SSL handshake...
No errors, certificate is already trusted

checkin keytool 和 Portecle，重新导入证书(我尝试使用 -showcert 从 openssl 生成，从浏览器导出并通过 scp 处理它，等等)给我“这已经存在于这里的另一个别名下"类型的消息。因此，证书进入工具的方式似乎没有任何问题。

在代码中强制使用明确的 trustStore 路径没有任何区别，在所有情况下，当我打开调试(通过 javax.net.debug 的 setProperty 到“全部”)时，我最终看到的是:

main, SEND TLSv1 ALERT:  fatal, description = certificate_unknown
main, WRITE: TLSv1 Alert, length = 2 [Raw write]: length = 7 0000: 15
03 01 00 02 02 2E                               ....... main, called
closeSocket() main, handling exception:
javax.net.ssl.SSLHandshakeException:
sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to
find valid certification path to requested target

不幸的是，我不能允许通过实现我自己的 TrustManager 来覆盖检查 - 它必须实际检查。

我从主机获得的证书有许多扩展名(确切地说是 9 个)，这让我想知道它们是否与此问题有关。

我还能检查/尝试什么？切换到不同的 JRE 版本？

最佳答案

您仍然可以通过实现自己的信任管理器来检查证书。我遇到了类似的问题 here .我还尝试将证书添加到 cacerts 但无济于事。

在您的信任管理器中，您需要显式加载证书。基本上我必须做的是这样的:

首先，我创建了一个使用实际证书文件的信任管理器:

public class ValicertX509TrustManager implements X509TrustManager {

    X509TrustManager pkixTrustManager;

    ValicertX509TrustManager() throws Exception {

        String valicertFile = "/certificates/ValicertRSAPublicRootCAv1.cer";
        String commwebDRFile = "/certificates/DR_10570.migs.mastercard.com.au.crt";
        String commwebPRODFile = "/certificates/PROD_10549.migs.mastercard.com.au.new.crt";

        Certificate valicert = CertificateFactory.getInstance("X509").generateCertificate(this.getClass().getResourceAsStream(valicertFile));
        Certificate commwebDR = CertificateFactory.getInstance("X509").generateCertificate(this.getClass().getResourceAsStream(commwebDRFile));
        Certificate commwebPROD = CertificateFactory.getInstance("X509").generateCertificate(this.getClass().getResourceAsStream(commwebPRODFile));

        KeyStore keyStore = KeyStore.getInstance("JKS");
        keyStore.load(null, "".toCharArray());
        keyStore.setCertificateEntry("valicert", valicert);
        keyStore.setCertificateEntry("commwebDR", commwebDR);
        keyStore.setCertificateEntry("commwebPROD", commwebPROD);

        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance("PKIX");
        trustManagerFactory.init(keyStore);

        TrustManager trustManagers[] = trustManagerFactory.getTrustManagers();

        for(TrustManager trustManager : trustManagers) {
            if(trustManager instanceof X509TrustManager) {
                pkixTrustManager = (X509TrustManager) trustManager;
                return;
            }
        }

        throw new Exception("Couldn't initialize");
    }

    public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        pkixTrustManager.checkServerTrusted(chain, authType);
    }

    public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        pkixTrustManager.checkServerTrusted(chain, authType);
    }

    public X509Certificate[] getAcceptedIssuers() {
        return pkixTrustManager.getAcceptedIssuers();
    }
}

现在，使用这个信任管理器，我必须创建一个套接字工厂:

public class ValicertSSLProtocolSocketFactory implements ProtocolSocketFactory {

    private SSLContext sslContext = null;

    public ValicertSSLProtocolSocketFactory() {
        super();
    }

    private static SSLContext createValicertSSLContext() {
        try {
            ValicertX509TrustManager valicertX509TrustManager = new ValicertX509TrustManager();
            SSLContext context = SSLContext.getInstance("TLS");
            context.init(null, new ValicertX509TrustManager[] { valicertX509TrustManager}, null);
            return context;
        }

        catch(Exception e) {
            Log.error(Log.Context.Net, e);
            return null;
        }
    }

    private SSLContext getSSLContext() {
        if(this.sslContext == null) {
            this.sslContext = createValicertSSLContext();
        }

        return this.sslContext;
    }

    public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort) throws IOException {
        return getSSLContext().getSocketFactory().createSocket(host, port, clientHost, clientPort);
    }

    public Socket createSocket(final String host, final int port, final InetAddress localAddress, final int localPort, final HttpConnectionParams params) throws IOException {
        if(params == null) {
            throw new IllegalArgumentException("Parameters may not be null");
        }

        int timeout = params.getConnectionTimeout();
        SocketFactory socketFactory = getSSLContext().getSocketFactory();

        if(timeout == 0) {
            return socketFactory.createSocket(host, port, localAddress, localPort);
        }

        else {
            Socket socket = socketFactory.createSocket();
            SocketAddress localAddr = new InetSocketAddress(localAddress, localPort);
            SocketAddress remoteAddr = new InetSocketAddress(host, port);
            socket.bind(localAddr);
            socket.connect(remoteAddr, timeout);
            return socket;
        }
    }

    public Socket createSocket(String host, int port) throws IOException {
        return getSSLContext().getSocketFactory().createSocket(host, port);
    }

    public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException {
        return getSSLContext().getSocketFactory().createSocket(socket, host, port, autoClose);
    }

    public boolean equals(Object obj) {
        return ((obj != null) && obj.getClass().equals(ValicertSSLProtocolSocketFactory.class));
    }

    public int hashCode() {
        return ValicertSSLProtocolSocketFactory.class.hashCode();
    }
}

然后我就注册了一个新的协议(protocol):

Protocol.registerProtocol("vhttps", new Protocol("vhttps", new ValicertSSLProtocolSocketFactory(), 443));
PostMethod postMethod = new PostMethod(url);
for (Map.Entry<String, String> entry : params.entrySet()) {
    postMethod.addParameter(entry.getKey(), StringUtils.Nz(entry.getValue()));
}

HttpClient client = new HttpClient();
int status = client.executeMethod(postMethod);
if (status == 200) {
    StringBuilder resultBuffer = new StringBuilder();
    resultBuffer.append(postMethod.getResponseBodyAsString());
    return new HttpResponse(resultBuffer.toString(), "");
} else {
    throw new IOException("Invalid response code: " + status);
}

唯一的缺点是我必须为这个特定的证书创建一个特定的协议(protocol) (vhttps)。

关于ssl - Java SSL - InstallCert 识别证书，但仍然出现 "unable to find valid certification path"错误？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11087121/