我有一个使用TransportSecurityBindingElement安全元素的WCF自定义绑定,但是客户端和(第三方)服务器上的时间准确性一直存在问题。
如何删除秒,使时间戳仅精确到分钟(我被告知服务器会接受这个)。
替代方案的想法是我在每次请求之前更新系统时间,但这假定(错误地)服务器时间是准确的。我也试图完全删除时间戳(可能不需要),但我得System.InvalidOperationException
说Signing without primary signature requires timestamp.
.Net代码构建安全元素:
Dim msgSecVer As System.ServiceModel.MessageSecurityVersion = ServiceModel.MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10
Dim tsbe As TransportSecurityBindingElement = SecurityBindingElement.CreateCertificateOverTransportBindingElement(msgSecVer)
tsbe.EnableUnsecuredResponse = True
tsbe.SetKeyDerivation(False)
tsbe.AllowInsecureTransport = True
tsbe.IncludeTimestamp = True
'adding clock skew doesn't seem to make any difference?
Dim clockSkew As TimeSpan = TimeSpan.FromMinutes(1)
tsbe.LocalClientSettings.MaxClockSkew = clockSkew
tsbe.LocalServiceSettings.MaxClockSkew = clockSkew
Return tsbe
邮件标题,注释(可能超出)时间戳的准确性:
POST http://wwwqa.xxxx.com/services/
Content-Type: text/xml; charset=utf-8
VsDebuggerCausalityData: xxxx
SOAPAction: ""
Host: wwwqa.xxxx.com
Content-Length: 2400
Expect: 100-continue
Connection: Keep-Alive
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
<o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<u:Timestamp u:Id="_0">
<u:Created>2013-12-04T10:53:13.568Z</u:Created>
<u:Expires>2013-12-04T10:58:13.568Z</u:Expires>
</u:Timestamp>
<o:BinarySecurityToken u:Id="uuid-bc441202-xxxx-xxxx-a176-02f2a61a6002-1" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3">....xxxx....</o:BinarySecurityToken>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignedInfo>
<CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<Reference URI="#_0">
<Transforms>
<Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<DigestValue>xxxx</DigestValue>
</Reference>
</SignedInfo>
<SignatureValue>xxxx</SignatureValue>
<KeyInfo>
<o:SecurityTokenReference><o:Reference URI="#uuid-bc441202-xxxx-xxxx-a176-02f2a61a6002-1"/></o:SecurityTokenReference>
</KeyInfo>
</Signature>
</o:Security>
</s:Header>
答案 0 :(得分:2)
我看到完成它的唯一方法是转移到客户端中仅传输的安全性,然后在custom encoder中自行添加安全标头。生成安全标头包括:
答案 1 :(得分:-1)
如果您使用IIS运行WCF主机,则可以添加自定义写入模块 - .net DLL - 拦截IIS中的消息,读取,解析并删除秒,然后将消息传递给您WCF服务。
我记得,模块程序选择并读取HTTPContext,允许您以任何方式更改消息,晚上向标题和正文部分添加全新字段。
但是,只有在使用IIS来管理或管理Web服务时,此方法才有效。
以下是指向它的链接:http://www.iis.net/learn/get-started/introduction-to-iis/iis-modules-overview#Querying