【正文】 ents ? WSAddressing ? WSReferral ? WSPolicy, WSSecurityPolicy ? Future: “Indigo” Microsoft Architects Forum 74 Summary ? There is no need for WSLinkedList ? You don’t have to understand the details ? Only the plumbers have to ? No vendor will implement all specs ? Sometimes it’s quite political WSI_M_REALLY_CONFUSED Microsoft Architects Forum 75 169。 URI=39。ws:AlgCanonicalization39。 xmlns:ws=39。10039。 server use token to encrypt messages Asymmetric Encryption Symmetric Encryption Microsoft Architects Forum 52 WSSecurityPolicy WSSecurity WSSecure Conversation WSTrust WSSecurity Policy WSFederation Microsoft Architects Forum 53 Motivation ? Specified set for mon security policies ? Policy assertions for the security domain Microsoft Architects Forum 54 WSSecurityPolicy ? WSSec* specs based policy assertions ? Allows participants to specify ? Token types ? Whether integrity/confidentiality are required ? Algorithms ? Which message parts need signing/encrypting Microsoft Architects Forum 55 Security Assertion Examples wsp:ExactlyOne wsp:Usage=39。wsp:Required39。 / wsp:SpecVersion wsp:Usage=39。 wsp:All wsp:Preference=‘1’ jeff:MainCourseBurger/jeff:MainCourse jeff:SideFries/jeff:Side /wsp:All wsp:All wsp:Preference=‘2’ jeff:MainCoursePizza/jeff:MainCourse jeff:SideYogurt/jeff:Side /wsp:All /wsp:ExactlyOne Domainspecific assertions Operators Usage Preference Microsoft Architects Forum 31 Metadata WSDL WSPolicy WSPolicy Attachment WSPolicy Assertions WSMetadata Exchange Microsoft Architects Forum 32 WSPolicyAttachment ? Defines what a policy applies to ? Associates domain expression with policy ? Domain expression indicates scope ? Policy makes statements about that scope wsp:PolicyAttachment wsp:AppliesTo wsa:EndpointReference wsa:Address /wsa:EndpointReference /wsp:AppliesTo wsp:Policy ... /wsp:Policy /wsp:PolicyAttachment Domain expression Microsoft Architects Forum 33 Metadata WSDL WSPolicy WSPolicy Attachment WSPolicy Assertions WSMetadata Exchange Microsoft Architects Forum 34 General WSPolicyAssertions ? TextEncoding: Character encoding ? Language: Natural (human) language ? SpecVersion: URI asserting pliance with spec ? MessagePredicate: Statement about message wsp:TextEncoding Encoding=39。 xmlns:m=39。Microsoft Architects Forum 1 Update on the Web Services Platform Update: [39。 xmlns:p=39。utf839。wsp:Required39。 count(wsp:GetHeader(.)/wsse:Security) = 1 /wsp:MessagePredicate Microsoft Architects Forum 35 Metadata WSDL WSPolicy WSPolicy Attachment WSPolicy Assertions WSMetadata Exchange Microsoft Architects Forum 36 Motivation ? How to get metadata for another endpoint? ? Extract from WSDL ? Query from discovery FIND (., UDDI) Microsoft Architects Forum 37 WSMetadataExchange ? Retrieving by a GET ? Applies to ? Policy ? WSDL ? Schema s:Envelope s:Header wsa:Action /wsa:Action /s:Header s:Body / /s:Envelope Microsoft Architects Forum 38 Metadata WSD