如何配置本地 Jetty ssl 以避免弱 phermeral DH 密钥错误？

Question

我正在使用 keytool 生成密钥库以将本地开发码头配置为运行 ssl

keytool.exe -keystore jetty.keystore -alias jetty -genkey -keyalg RSA -sigalg SHA256withRSA

码头配置：

<Call name="addConnector">
    <Arg>
        <New class="org.eclipse.jetty.server.ssl.SslSelectChannelConnector">
            <Arg>
                <New class="org.eclipse.jetty.http.ssl.SslContextFactory">
                    <Set name="keyStore">jetty/jetty.keystore</Set>
                    <Set name="keyStorePassword">jetty6</Set>
                    <Set name="keyManagerPassword">jetty6</Set>
                    <Set name="trustStore">jetty/jetty.keystore</Set>
                    <Set name="trustStorePassword">jetty6</Set>
                </New>
            </Arg>
            <Set name="port">8443</Set>
            <Set name="maxIdleTime">30000</Set>
        </New>
    </Arg>
</Call>

直到最近它在 Firefox Aurora 和 Chrome Canary 等新浏览器中工作正常，它拒绝（在 Firefox 的情况下）：

An error occurred during a connection to localhost:8443. SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key)

无法手动接受。那么，我应该重新生成一个更强的密钥吗？或者是jetty中的配置？

Answer 1

对jetty了解不多，但看来你找错人了。

firefox 抱怨的不是服务器密钥，而是用于建立连接的（临时）临时 DH 密钥。您需要配置码头可能使用的 SSL/TLS 加密。查看选择不同的密码套件。

Answer 2

这适用于 OpenJDK 7，因为上面调用 setIncludeCipherSuites () 的代码不允许任何连接

sslContextFactory.setExcludeCipherSuites("TLS_DHE.*", "TLS_EDH.*");
sslContextFactory.setExcludeProtocols("SSLv3");
sslContextFactory.setRenegotiationAllowed(false);

Answer 3

接受的答案并没有为我解决这个问题（Jetty 9.2，Java 7），但是这个解决了：

<Set name="ExcludeCipherSuites">
  <Array type="String">
    <Item>SSL_RSA_WITH_DES_CBC_SHA</Item>
    <Item>SSL_DHE_RSA_WITH_DES_CBC_SHA</Item>
    <Item>SSL_DHE_DSS_WITH_DES_CBC_SHA</Item>
    <Item>SSL_RSA_EXPORT_WITH_RC4_40_MD5</Item>
    <Item>SSL_RSA_EXPORT_WITH_DES40_CBC_SHA</Item>
    <Item>SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA</Item>
    <!-- Disable cipher suites with Diffie-Hellman key exchange to prevent Logjam attack 
    and avoid the ssl_error_weak_server_ephemeral_dh_key error in recent browsers -->
    <Item>SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA</Item>
    <Item>SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA</Item>
    <Item>TLS_DHE_RSA_WITH_AES_256_CBC_SHA256</Item>
    <Item>TLS_DHE_DSS_WITH_AES_256_CBC_SHA256</Item>
    <Item>TLS_DHE_RSA_WITH_AES_256_CBC_SHA</Item>
    <Item>TLS_DHE_DSS_WITH_AES_256_CBC_SHA</Item>
    <Item>TLS_DHE_RSA_WITH_AES_128_CBC_SHA256</Item>
    <Item>TLS_DHE_DSS_WITH_AES_128_CBC_SHA256</Item>
    <Item>TLS_DHE_RSA_WITH_AES_128_CBC_SHA</Item>
    <Item>TLS_DHE_DSS_WITH_AES_128_CBC_SHA</Item>
  </Array>
</Set>
<!-- setting required for preventing Poodle attack, see  -->
<Set name="ExcludeProtocols">
<Array type="java.lang.String">
   <Item>SSLv3</Item>
</Array>
</Set>

Answer 4

UnSandpiper 解决方案的嵌入式 Jetty 代码：

    sslContextFactory.setExcludeCipherSuites(
            "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",
            // Disable cipher suites with Diffie-Hellman key exchange to prevent Logjam attack
            //and avoid the ssl_error_weak_server_ephemeral_dh_key error in recent browsers
            "SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA",
            "SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA",
            "SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA",
            "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256",
            "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256",
            "TLS_DHE_RSA_WITH_AES_256_CBC_SHA",
            "TLS_DHE_DSS_WITH_AES_256_CBC_SHA",
            "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256",
            "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256",
            "TLS_DHE_RSA_WITH_AES_128_CBC_SHA",
            "TLS_DHE_DSS_WITH_AES_128_CBC_SHA");

    // Setting required for preventing Poodle attack,
    // see 
    sslContextFactory.setExcludeProtocols("SSLv3");

如何配置本地 Jetty ssl 以避免弱 phermeral DH 密钥错误？

How to config local Jetty ssl to avoid weak phermeral DH key error?

java

ssl

jetty