Question

我正在使用keytool生成一个密钥库来配置本地开发码头来运行ssl

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

Jetty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>

直到最近在Firefox Aurora和Chrome Canary这样的新浏览器中才能正常工作，它拒绝（在Firefox的情况下）：

连接到localhost期间发生错误：8443。已收到SSL 服务器密钥交换握手中的一个弱短暂的Diffie-Hellman密钥信息。（错误代码：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？或者它是码头的配置？

Answer 1

接受的答案并没有为我解决（Jetty 9.2，Java 7），但是这样做了：

<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 http://stackoverflow.com/questions/26382540/how-to-disable-the-sslv3-protocol-in-jetty-to-prevent-poodle-attack/26388531#26388531 -->
<Set name="ExcludeProtocols">
<Array type="java.lang.String">
   <Item>SSLv3</Item>
</Array>
</Set>

Answer 2

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 http://stackoverflow.com/questions/26382540/how-to-disable-the-sslv3-protocol-in-jetty-to-prevent-poodle-attack/26388531#26388531
    sslContextFactory.setExcludeProtocols("SSLv3");

Answer 3

对码头不太了解，但似乎你正在咆哮错误的树。

这不是firefox抱怨的服务器密钥，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。看看选择不同的密码套件。

Answer 4

This works with OpenJDK 7 as the code above to call setIncludeCipherSuites () fails to allow any connections

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

如何配置本地Jetty ssl以避免弱的phermeral DH密钥错误？

4 个答案: