java - SSLv3 连接不起作用

Question

我在尝试连接到服务器时遇到问题。我做了很多例子，但没有得到连接。网址是https://sikuani.udea.edu.co:4443它有一个证书(根据 Chrome，它是版本 3)。

我有一个基本程序可以执行此操作，但它总是因以下 2 个错误而失败:

Exception in thread "main" javax.net.ssl.SSLException: Received fatal alert: unexpected_message

或

Exception in thread "main" javax.net.ssl.SSLException: Received fatal alert: close_notify

这是我的代码:

import java.net.URL;
import java.io.*;
import javax.net.ssl.HttpsURLConnection;

public class Test
{
    public static void main(String[] args) {   
        System.setProperty("https.protocols", "SSLv3");
        System.setProperty("javax.net.debug", "all");

        String httpsURL = "https://sikuani.udea.edu.co:4443";
        URL myurl = new URL(httpsURL);
        HttpsURLConnection con = (HttpsURLConnection)myurl.openConnection();
        InputStream ins = con.getInputStream();
        InputStreamReader isr = new InputStreamReader(ins);
        BufferedReader in = new BufferedReader(isr);

        String inputLine;

        while ((inputLine = in.readLine()) != null) {   
            System.out.println(inputLine);
        }   

        in.close();
    }   
}

我在 google 上搜索过，这里是 java 的 foros，但我还没有找到解决方案(一些 foros 说这是 Java 错误，其他的使用 SSLv3 参数就足够了，其他的创建 trusStore 就可以了) .

我认为接近的解决方案是使用 trustStore 和证书，但我不知道如何设置正确的参数来完成这项工作。

感谢您的帮助。

编辑:

这是我使用 System.setProperty("javax.net.debug", "ssl,handshake"); 的输出:

// A lot of certificates are loaded...
trigger seeding of SecureRandom
done seeding SecureRandom
Ignoring unavailable cipher suite: TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
Ignoring unavailable cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Ignoring unavailable cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256
Ignoring unavailable cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
Ignoring unavailable cipher suite: TLS_RSA_WITH_AES_256_GCM_SHA384
Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
Ignoring unavailable cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
Ignoring unavailable cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
Allow unsafe renegotiation: false
Allow legacy hello messages: true
Is initial handshake: true
Is secure renegotiation: false
main, setSoTimeout(0) called
Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 for SSLv3
Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_128_GCM_SHA256
Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
%% No cached client session
*** ClientHello, SSLv3
RandomCookie:  GMT: 1413064824 bytes = { 174, 241, 202, 226, 44, 117, 251, 126, 253, 137, 159, 14, 36, 19, 204, 203, 101, 47, 192, 51, 106, 143, 205, 111, 4, 139, 102, 89 }
Session ID:  {}
Cipher Suites: [TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA, SSL_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_MD5, TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
Compression Methods:  { 0 }
Extension elliptic_curves, curve names: {secp256r1, sect163k1, sect163r2, secp192r1, secp224r1, sect233k1, sect233r1, sect283k1, sect283r1, secp384r1, sect409k1, sect409r1, secp521r1, sect571k1, sect571r1, secp160k1, secp160r1, secp160r2, sect163r1, secp192k1, sect193r1, sect193r2, secp224k1, sect239k1, secp256k1}
Extension ec_point_formats, formats: [uncompressed]
Extension server_name, server_name: [type=host_name (0), value=sikuani.udea.edu.co]
***
main, WRITE: SSLv3 Handshake, length = 177
main, READ: SSLv3 Alert, length = 2
main, RECV TLSv1.2 ALERT:  fatal, close_notify
main, called closeSocket()
main, handling exception: javax.net.ssl.SSLException: Received fatal alert: close_notify
Exception in thread "main" javax.net.ssl.SSLException: Received fatal alert: close_notify
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
    at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1991)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1104)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
    at Test.main(Test.java:44)

如果我删除将协议(protocol)设置为 SSLv3 的行，我将得到:

main, WRITE: TLSv1.2 Handshake, length = 235
main, READ: TLSv1 Alert, length = 2
main, RECV TLSv1.2 ALERT: fatal, unexpected_message main, called closeSocket()
main, handling exception: javax.net.ssl.SSLException: Received fatal alert: unexpected_message
Exception in thread "main" javax.net.ssl.SSLException: Received fatal alert: unexpected_message – 

Answer 1

这是您应该使用的代码:

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class Test {
    public static void main(String[] args) {   
        System.setProperty("https.protocols", "TLSv1,SSLv3,SSLv2Hello");
        System.setProperty("javax.net.debug", "all");

        try{
            String httpsURL = "https://sikuani.udea.edu.co:4443";
            URL myurl = new URL(httpsURL);
            HttpURLConnection con = (HttpURLConnection)myurl.openConnection();
            InputStream ins = con.getInputStream();
            InputStreamReader isr = new InputStreamReader(ins);
            BufferedReader in = new BufferedReader(isr);

            String inputLine;

            while ((inputLine = in.readLine()) != null) {   
                System.out.println(inputLine);
            }   

            in.close();
        }
        catch(Exception ex){

        }
    } 
}

让调试保持打开状态，这样您就可以看到发生了什么。我根据收到的评论更改了代码。不需要添加我添加的行。此外，您可以使用 HttpURLConnection 而不是 HttpsURLConnection 因为它扩展了它。添加“SSLv2Hello”可解决问题。

我认为这应该可行 - 现在就试试吧。