我正在使用HttpURLConnection连接到SSL站点。有时这些使用自签名证书/其他表现不佳的SSL，所以我有一个访问这些证书的模式。我正在使用在线推荐的许多地方的典型代码：
// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {}
public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {}
}
};
// Install the all-trusting trust manager
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
// Don't verify host names
HostnameVerifier hv = new HostnameVerifier() {
public boolean verify(String urlHostName, SSLSession session) {
return true;
}
};
HttpsURLConnection.setDefaultHostnameVerifier(hv);
问题在于这会导致许多网站出现SSL错误，例如：
javax.net.ssl.SSLException: Received fatal alert: internal_error
javax.net.debug = all enabled时的输出：
[java] Thread-8, READ: TLSv1.2 Alert, length = 2
[java] Thread-8, RECV TLSv1.2 ALERT: fatal, internal_error
[java] Thread-8, called closeSocket()
https://www.territrespicio.com 原因：
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
javax.net.debug = all enabled时的输出：
[java] Thread-13, READ: TLSv1.2 Alert, length = 2
[java] Thread-13, RECV TLSv1.2 ALERT: fatal, handshake_failure
[java] Thread-13, called closeSocket()
这些问题都与TrustManager无关，注释掉HostnameVerifier部分始终允许连接正常工作。
注意：
答案 0 :(得分：5)
您的问题是由JDK Custom HostnameVerifier disables SNI extension中的错误引起的。您还可以在此帖子中查看Extended server_name (SNI Extension) not sent with jdk1.8.0 but send with jdk1.7.0
从jdk 8u66开始，使用自定义HostnameVerifier在握手期间不会发送Extended server_name扩展名。此错误将在版本8u152中修复。
这是使用您的代码调用https://www.territrespicio.com的握手跟踪
*** ClientHello, TLSv1.2
RandomCookie: GMT: 1467981635 bytes = { 253, 197, 8, 192, 170, 180, 230, 6, 212, 233, 219, 201, 182, 39, 204, 176, 49, 215, 43, 41, 112, 204, 188, 29, 115, 235, 191, 74 }
Session ID: {}
Cipher Suites: [TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLS_DHE_DSS_WITH_AES_256_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_DSS_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_DSS_WITH_AES_128_CBC_SHA256, 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_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_DSS_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, 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, 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 signature_algorithms, signature_algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA256withDSA, SHA1withECDSA, SHA1withRSA, SHA1withDSA
***
main, WRITE: TLSv1.2 Handshake, length = 233
main, READ: TLSv1.2 Alert, length = 2
main, RECV TLSv1.2 ALERT: fatal, handshake_failure
main, called closeSocket()
main, handling exception: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
Exception in thread "main" javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
这是追踪（工作）删除
HttpsURLConnection.setDefaultHostnameVerifier(hv);
*** ClientHello, TLSv1.2
RandomCookie: GMT: 1467981305 bytes = { 187, 36, 131, 239, 148, 148, 198, 107, 89, 74, 67, 33, 127, 76, 24, 17, 108, 254, 79, 104, 242, 239, 51, 36, 180, 244, 181, 45 }
Session ID: {}
Cipher Suites: [TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLS_DHE_DSS_WITH_AES_256_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_DSS_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_DSS_WITH_AES_128_CBC_SHA256, 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_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_DSS_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, 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, 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 signature_algorithms, signature_algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA256withDSA, SHA1withECDSA, SHA1withRSA, SHA1withDSA
Extension server_name, server_name: [type=host_name (0), value=www.territrespicio.com]
***
main, WRITE: TLSv1.2 Handshake, length = 264
main, READ: TLSv1.2 Handshake, length = 89
*** ServerHello, TLSv1.2
RandomCookie: GMT: -2137263708 bytes = { 105, 47, 249, 171, 64, 55, 195, 235, 198, 159, 46, 193, 42, 65, 156, 243, 134, 177, 35, 221, 75, 16, 222, 103, 42, 55, 103, 231 }
Session ID: {42, 151, 108, 66, 43, 195, 53, 201, 234, 24, 245, 14, 183, 242, 185, 128, 66, 115, 60, 35, 167, 159, 178, 238, 93, 155, 20, 195, 95, 155, 11, 79}
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
Compression Method: 0
Extension renegotiation_info, renegotiated_connection: <empty>
Extension ec_point_formats, formats: [uncompressed, ansiX962_compressed_prime, ansiX962_compressed_char2]
***
您可以看到在ClientHello中添加了所需的扩展名
Extension server_name, server_name: [type=host_name (0), value=www.territrespicio.com]
没有记录的解决方法。 因此，请考虑使用JDK版本＆lt; 8u66或＆gt; = 8u152
在SNI client-side mystery using Java8
中查看@Dawuid的答案如果使用自定义SSLSocketFactory而不覆盖createSocket（）（没有参数的方法），则使用完全参数化的createSocket，并且所有都按预期工作（使用客户端sni扩展）。
您可以找到类似的解决方法here。我尝试过只使用一个包装器就可以了。
HttpsURLConnection.setDefaultSSLSocketFactory(
new SSLSocketFactoryWrapper(sc.getSocketFactory()));
SSLSocketFactoryWrapper（完整代码）
package test;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.net.ssl.SSLSocketFactory;
public class SSLSocketFactoryWrapper extends SSLSocketFactory {
private SSLSocketFactory factory;
public SSLSocketFactoryWrapper(SSLSocketFactory factory){
this.factory = factory;
}
/*
@Override
public Socket createSocket() throws IOException {
return factory.createSocket();
}
*/
@Override
public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
return factory.createSocket(s, host, port, autoClose);
}
@Override
public String[] getDefaultCipherSuites() {
return factory.getDefaultCipherSuites();
}
@Override
public String[] getSupportedCipherSuites() {
return factory.getSupportedCipherSuites();
}
@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
return factory.createSocket(host, port);
}
@Override
public Socket createSocket(InetAddress host, int port) throws IOException {
return factory.createSocket(host, port);
}
@Override
public Socket createSocket(String host, int port, InetAddress localHost, int localPort)
throws IOException, UnknownHostException {
return factory.createSocket(host, port, localHost, localPort);
}
@Override
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
return factory.createSocket(address, port, localAddress, localPort);
}
}