Question

论坛充满了这个问题，但我无法找到解决方案。我尝试连接WS但没有任何成功。我试图更新cacerts文件没有任何效果。

日志是：

Allow unsafe renegotiation: false
Allow legacy hello messages: true
Is initial handshake: true
Is secure renegotiation: false
%% No cached client session
*** ClientHello, TLSv1
RandomCookie:  GMT: 1507108654 bytes = { 133, 135, 81, 148, 186, 186, 146, 23, 28, 240, 158, 152, 139, 167, 209, 225, 54, 253, 112, 118, 61, 112, 140, 214, 149, 198, 197, 219 }
Session ID:  {}
Cipher Suites: [SSL_RSA_WITH_RC4_128_MD5, SSL_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, SSL_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_DES_CBC_SHA, SSL_DHE_RSA_WITH_DES_CBC_SHA, SSL_DHE_DSS_WITH_DES_CBC_SHA, SSL_RSA_EXPORT_WITH_RC4_40_MD5, SSL_RSA_EXPORT_WITH_DES40_CBC_SHA, SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
Compression Methods:  { 0 }
***
[write] MD5 and SHA1 hashes:  len = 75
0000: 01 00 00 47 03 01 5A D5   A7 2E 85 87 51 94 BA BA  ...G..Z.....Q...
0010: 92 17 1C F0 9E 98 8B A7   D1 E1 36 FD 70 76 3D 70  ..........6.pv=p
0020: 8C D6 95 C6 C5 DB 00 00   20 00 04 00 05 00 2F 00  ........ ...../.
0030: 33 00 32 00 0A 00 16 00   13 00 09 00 15 00 12 00  3.2.............
0040: 03 00 08 00 14 00 11 00   FF 01 00                 ...........
http-8080-1, WRITE: TLSv1 Handshake, length = 75
[Raw write]: length = 80
0000: 16 03 01 00 4B 01 00 00   47 03 01 5A D5 A7 2E 85  ....K...G..Z....
0010: 87 51 94 BA BA 92 17 1C   F0 9E 98 8B A7 D1 E1 36  .Q.............6
0020: FD 70 76 3D 70 8C D6 95   C6 C5 DB 00 00 20 00 04  .pv=p........ ..
0030: 00 05 00 2F 00 33 00 32   00 0A 00 16 00 13 00 09  .../.3.2........
0040: 00 15 00 12 00 03 00 08   00 14 00 11 00 FF 01 00  ................
http-8080-1, received EOFException: error
http-8080-1, handling exception: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
http-8080-1, SEND TLSv1 ALERT:  fatal, description = handshake_failure
http-8080-1, WRITE: TLSv1 Alert, length = 2
[Raw write]: length = 7
0000: 15 03 01 00 02 02 28                               ......(
http-8080-1, called closeSocket()
http-8080-1, called close()
http-8080-1, called closeInternal(true)

谢谢你的帮助

Answer 1

很可能服务器已经禁用了TLS 1.0（您正在谈论TLS 1.0，如序列字节 47 03 01 5A 中所示），或者它是等待没有的SNI扩展。

关于Java 6，只有6u111允许比TLS 1.0更好（TLS 1.1），6u121将允许TLS 1.2。看看Reference。由于 TLS版本不容忍问题，它仍然没有效率，只有系统属性才能实现它，如Release Notes中所述：

TLS v1.2现在是此版本的TLS协议选项。默认情况下， TLSv1.0仍将是客户端套接字上的默认启用协议。

出于这个原因，需要尝试几个系统属性：

-Djdk.tls.client.protocols="TLSv1.2"（先决条件：6u121 / 7u95）
-Dhttps.protocols="TLSv1.2"如果您的代码使用的是HttpsURLConnection

您的 ClientHello 格式正确，但它不包含任何扩展名（特别是SNI）。这就是为什么它看起来很短（ bytes = 80 ）。默认情况下启用SNI，从6u121开始（如果我右边）。我看到的两个原因都应该用适当的Java版本来解决。

SSLHandshakeException：握手期间远程主机关闭连接

1 个答案: