带压缩的 WCF 消息安全性

Question

压缩启用了消息安全性的 WCF 服务的通信的最佳实践是什么（该服务未托管在 IIS 上并使用 HTTP 作为传输协议）？

在我的搜索中，我发现在通道级别进行的实现在消息受到保护后应用压缩（因此压缩不是最佳的）。

你能指出我正确的方向吗？ 或者甚至更好：您是否知道在安全协议运行之前应用的任何 WCF 压缩实现（与消息安全一起使用）？

Answer 1

您可以使用 Microsoft 示例压缩 (Microsoft WCF Samples\WCF\Extensibility\MessageEncoder\Compression)，并且可以使用 Message Security 作为 TripleDesSha256 算法作为此配置。

<customBinding>
    <binding name="customNetTcpBinding">
      <transactionFlow transactionProtocol="OleTransactions" />
      <reliableSession ordered="true"/>
      <Compression innerMessageEncoding="binaryMessageEncoding"
          compressionAlgorithm="GZip" />
      <security defaultAlgorithmSuite="TripleDesSha256" authenticationMode="SecureConversation" requireDerivedKeys="true" securityHeaderLayout="Strict" includeTimestamp="true" keyEntropyMode="CombinedEntropy" messageProtectionOrder="SignBeforeEncryptAndEncryptSignature" messageSecurityVersion="Default" requireSecurityContextCancellation="true" requireSignatureConfirmation="false">
        <localClientSettings cacheCookies="true" detectReplays="true" replayCacheSize="900000" maxClockSkew="00:05:00" maxCookieCachingTime="Infinite" replayWindow="00:05:00" sessionKeyRenewalInterval="10:00:00" sessionKeyRolloverInterval="00:05:00" reconnectTransportOnFailure="false" timestampValidityDuration="00:05:00" cookieRenewalThresholdPercentage="60" />
        <localServiceSettings detectReplays="true" issuedCookieLifetime="10:00:00" maxStatefulNegotiations="128" replayCacheSize="900000" maxClockSkew="00:05:00" negotiationTimeout="00:01:00" replayWindow="00:05:00" inactivityTimeout="00:02:00" sessionKeyRenewalInterval="15:00:00" sessionKeyRolloverInterval="00:05:00" reconnectTransportOnFailure="false" maxPendingSessions="128" maxCachedCookies="1000" timestampValidityDuration="00:05:00" />
        <secureConversationBootstrap defaultAlgorithmSuite="TripleDesSha256" authenticationMode="SspiNegotiated" requireDerivedKeys="true" securityHeaderLayout="Strict" includeTimestamp="true" keyEntropyMode="CombinedEntropy" messageProtectionOrder="SignBeforeEncryptAndEncryptSignature" messageSecurityVersion="Default" requireSecurityContextCancellation="true" requireSignatureConfirmation="false">
          <localClientSettings cacheCookies="true" detectReplays="true" replayCacheSize="900000" maxClockSkew="00:05:00" maxCookieCachingTime="Infinite" replayWindow="00:05:00" sessionKeyRenewalInterval="10:00:00" sessionKeyRolloverInterval="00:05:00" reconnectTransportOnFailure="true" timestampValidityDuration="00:05:00" cookieRenewalThresholdPercentage="60" />
          <localServiceSettings detectReplays="true" issuedCookieLifetime="00:15:00" maxStatefulNegotiations="128" replayCacheSize="900000" maxClockSkew="00:05:00" negotiationTimeout="00:01:00" replayWindow="00:05:00" inactivityTimeout="00:02:00" sessionKeyRenewalInterval="15:00:00" sessionKeyRolloverInterval="00:05:00" reconnectTransportOnFailure="true" maxPendingSessions="128" maxCachedCookies="1000" timestampValidityDuration="00:05:00" />
        </secureConversationBootstrap>
      </security>
      <tcpTransport manualAddressing="false" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" connectionBufferSize="8192" hostNameComparisonMode="StrongWildcard" channelInitializationTimeout="00:00:05" maxBufferSize="65536" maxPendingConnections="10" maxOutputDelay="00:00:00.2000000" maxPendingAccepts="1" transferMode="Buffered" listenBacklog="10" portSharingEnabled="false" teredoEnabled="false">
        <connectionPoolSettings groupName="default" leaseTimeout="00:05:00" idleTimeout="00:02:00" maxOutboundConnectionsPerEndpoint="10" />
      </tcpTransport>          
    </binding>      
  </customBinding>