[英]Directly signing an Office Word document using XML
我正在尝试使用直接XML格式的C#签署Microsoft Office Word文件。
有一些问题,这里出现了模棱两可的问题:
SignatureValue
? 最后一个问题是我正确地这样做了吗? 也许这里有问题,我错过了一个软件包,否则它本身会与openxml文件交互并签名。
但请记住,我实际上是尝试使用外部令牌签署数据,该外部令牌具有可用的pkcs11接口(但没有CSP),所以我使用了PKCS11 Interop库将其迁移到c#,但我在这里仍然有点困惑。
只是为了抬头任何执行openXML交互的库也应该允许我使用pkcs11命令对文档进行签名(即,它给我字节流来签名和消化但是其他部分本身,pkcs11实际上不应该被视为重要性在这里(你可以用我的自定义算法替换它))
BTW中的签名构建器如下所示:
<?xml version="1.0" encoding="UTF-8"?>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#" Id="idPackageSignature">
<SignedInfo>
<CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
<SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
<Reference Type="http://www.w3.org/2000/09/xmldsig#Object" URI="#idPackageObject">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference Type="http://www.w3.org/2000/09/xmldsig#Object" URI="#idOfficeObject">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference Type="http://uri.etsi.org/01903#SignedProperties" URI="#idSignedProperties">
<Transforms>
<Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
</SignedInfo>
<SignatureValue/>
<KeyInfo>
<X509Data>
<X509Certificate/>
</X509Data>
</KeyInfo>
<Object Id="idPackageObject">
<Manifest>
<Reference URI="/_rels/.rels?ContentType=application/vnd.openxmlformats-package.relationships+xml">
<Transforms>
<Transform Algorithm="http://schemas.openxmlformats.org/package/2006/RelationshipTransform">
<mdssi:RelationshipReference xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" SourceId="rId1"/>
</Transform>
<Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/_rels/document.xml.rels?ContentType=application/vnd.openxmlformats-package.relationships+xml">
<Transforms>
<Transform Algorithm="http://schemas.openxmlformats.org/package/2006/RelationshipTransform">
<mdssi:RelationshipReference xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" SourceId="rId5"/>
<mdssi:RelationshipReference xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" SourceId="rId4"/>
<mdssi:RelationshipReference xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" SourceId="rId3"/>
<mdssi:RelationshipReference xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" SourceId="rId2"/>
<mdssi:RelationshipReference xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" SourceId="rId1"/>
</Transform>
<Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/document.xml?ContentType=application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/fontTable.xml?ContentType=application/vnd.openxmlformats-officedocument.wordprocessingml.fontTable+xml">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/settings.xml?ContentType=application/vnd.openxmlformats-officedocument.wordprocessingml.settings+xml">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/styles.xml?ContentType=application/vnd.openxmlformats-officedocument.wordprocessingml.styles+xml">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/theme/theme1.xml?ContentType=application/vnd.openxmlformats-officedocument.theme+xml">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
<Reference URI="/word/webSettings.xml?ContentType=application/vnd.openxmlformats-officedocument.wordprocessingml.webSettings+xml">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</Reference>
</Manifest>
<SignatureProperties>
<SignatureProperty Id="idSignatureTime" Target="#idPackageSignature">
<mdssi:SignatureTime xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature">
<mdssi:Format>YYYY-MM-DDThh:mm:ssTZD</mdssi:Format>
<mdssi:Value>2015-11-22T17:21:28Z</mdssi:Value>
</mdssi:SignatureTime>
</SignatureProperty>
</SignatureProperties>
</Object>
<Object Id="idOfficeObject">
<SignatureProperties>
<SignatureProperty Id="idOfficeV1Details" Target="#idPackageSignature">
<SignatureInfoV1 xmlns="http://schemas.microsoft.com/office/2006/digsig">
<SetupID/>
<SignatureText/>
<SignatureImage/>
<SignatureComments>TEST SIGNING</SignatureComments>
<WindowsVersion>10.0</WindowsVersion>
<OfficeVersion>15.0</OfficeVersion>
<ApplicationVersion>15.0</ApplicationVersion>
<Monitors>1</Monitors>
<HorizontalResolution>1920</HorizontalResolution>
<VerticalResolution>1080</VerticalResolution>
<ColorDepth>32</ColorDepth>
<SignatureProviderId>{00000000-0000-0000-0000-000000000000}</SignatureProviderId>
<SignatureProviderUrl/>
<SignatureProviderDetails>9</SignatureProviderDetails>
<SignatureType>1</SignatureType>
</SignatureInfoV1>
</SignatureProperty>
</SignatureProperties>
</Object>
<Object>
<xd:QualifyingProperties xmlns:xd="http://uri.etsi.org/01903/v1.3.2#" Target="#idPackageSignature">
<xd:SignedProperties Id="idSignedProperties">
<xd:SignedSignatureProperties>
<xd:SigningTime>2015-11-22T17:21:28Z</xd:SigningTime>
<xd:SigningCertificate>
<xd:Cert>
<xd:CertDigest>
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<DigestValue/>
</xd:CertDigest>
<xd:IssuerSerial>
<X509IssuerName>E=ali@ali.com, CN=ALI-PC, OU=ALI-PC, O=ALI-PC, L=ALI-PC, S=ALI-PC, C=98</X509IssuerName>
<X509SerialNumber>1</X509SerialNumber>
</xd:IssuerSerial>
</xd:Cert>
</xd:SigningCertificate>
<xd:SignaturePolicyIdentifier>
<xd:SignaturePolicyImplied/>
</xd:SignaturePolicyIdentifier>
</xd:SignedSignatureProperties>
<xd:SignedDataObjectProperties>
<xd:CommitmentTypeIndication>
<xd:CommitmentTypeId>
<xd:Identifier>http://uri.etsi.org/01903/v1.2.2#ProofOfOrigin</xd:Identifier>
<xd:Description>Created and approved this document</xd:Description>
</xd:CommitmentTypeId>
<xd:AllSignedDataObjects/>
<xd:CommitmentTypeQualifiers>
<xd:CommitmentTypeQualifier>TEST SIGNING</xd:CommitmentTypeQualifier>
</xd:CommitmentTypeQualifiers>
</xd:CommitmentTypeIndication>
</xd:SignedDataObjectProperties>
</xd:SignedProperties>
</xd:QualifyingProperties>
</Object>
</Signature>
您可以查看该项目的源代码,它涵盖了MS Office文档的基本数字签名。 请注意,代码有点过时,但原则是相同的
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