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(Swift 3,4,5...) XML-DSig Add Reference with Transforms Specified ExplicitlyDemonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment.
func chilkatTest() { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. var success: Bool = true // Create the following XML to be signed: // <doc> // <s id="s1">Some text...</s> // <p>Some text...</p> // <p class="note">A note...</p> // </doc> // Use this online tool to generate code from sample XML: // Generate Code to Create XML let xmlToSign = CkoXml()! xmlToSign.tag = "doc" xmlToSign.updateAttr(at: "s", autoCreate: true, attrName: "id", attrValue: "s1") xmlToSign.updateChildContent("s", value: "Some text...") xmlToSign.updateChildContent("p", value: "Some text...") xmlToSign.updateAttr(at: "p[1]", autoCreate: true, attrName: "class", attrValue: "note") xmlToSign.updateChildContent("p[1]", value: "A note...") print("\(xmlToSign.getXml()!)") let gen = CkoXmlDSigGen()! gen.sigLocation = "doc" gen.sigLocationMod = 0 gen.sigId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature" gen.sigNamespacePrefix = "ds" gen.sigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#" gen.sigValueId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-SignatureValue" gen.signedInfoCanonAlg = "C14N" gen.signedInfoDigestMethod = "sha1" // Set the KeyInfoId before adding references.. gen.keyInfoId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo" // The following XML to be added as an Object to the Signature // Use this online tool to generate code from sample XML: // Generate Code to Create XML // <xades:QualifyingProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties" Target="#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#"> // <xades:SignedProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties"> // <xades:SignedSignatureProperties> // <xades:SigningTime>TO BE GENERATED BY CHILKAT</xades:SigningTime> // <xades:SigningCertificate> // <xades:Cert> // <xades:CertDigest> // <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/> // <ds:DigestValue>TO BE GENERATED BY CHILKAT</ds:DigestValue> // </xades:CertDigest> // <xades:IssuerSerial> // <ds:X509IssuerName>TO BE GENERATED BY CHILKAT</ds:X509IssuerName> // <ds:X509SerialNumber>TO BE GENERATED BY CHILKAT</ds:X509SerialNumber> // </xades:IssuerSerial> // </xades:Cert> // </xades:SigningCertificate> // </xades:SignedSignatureProperties> // <xades:SignedDataObjectProperties> // <xades:DataObjectFormat ObjectReference="#Reference-24eb6003-d41c-442c-a731-d4c58f94790b"> // <xades:Description/> // <xades:ObjectIdentifier> // <xades:Identifier Qualifier="OIDAsURN">urn:oid:1.2.840.10003.5.109.10</xades:Identifier> // <xades:Description/> // </xades:ObjectIdentifier> // <xades:MimeType>text/xml</xades:MimeType> // <xades:Encoding/> // </xades:DataObjectFormat> // </xades:SignedDataObjectProperties> // </xades:SignedProperties> // </xades:QualifyingProperties> let object1 = CkoXml()! object1.tag = "xades:QualifyingProperties" object1.addAttribute("Id", value: "Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties") object1.addAttribute("Target", value: "#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature") object1.addAttribute("xmlns:ds", value: "http://www.w3.org/2000/09/xmldsig#") object1.addAttribute("xmlns:xades", value: "http://uri.etsi.org/01903/v1.3.2#") object1.updateAttr(at: "xades:SignedProperties", autoCreate: true, attrName: "Id", attrValue: "Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties") object1.updateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime", value: "TO BE GENERATED BY CHILKAT") // Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1 object1.updateAttr(at: "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod", autoCreate: true, attrName: "Algorithm", attrValue: "http://www.w3.org/2000/09/xmldsig#sha1") object1.updateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue", value: "TO BE GENERATED BY CHILKAT") object1.updateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2", value: "TO BE GENERATED BY CHILKAT") object1.updateAttr(at: "xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat", autoCreate: true, attrName: "ObjectReference", attrValue: "#Reference-24eb6003-d41c-442c-a731-d4c58f94790b") object1.updateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description", value: "") object1.updateAttr(at: "xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier", autoCreate: true, attrName: "Qualifier", attrValue: "OIDAsURN") object1.updateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier", value: "urn:oid:1.2.840.10003.5.109.10") object1.updateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description", value: "") object1.updateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType", value: "text/xml") object1.updateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding", value: "") print("\(object1.getXml()!)") gen.addObject("", content: object1.getXml(), mimeType: "", encoding: "") // -------- Reference 1 -------- // Create the following Transforms fragment: // Use this online tool to generate code from sample XML: // Generate Code to Create XML // <ds:Transforms> // <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/> // <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/> // <ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116"> // <ds:XPath xmlns:ds="http://www.w3.org/2000/09/xmldsig#">not(ancestor-or-self::ds:Signature)</ds:XPath> // </ds:Transform> // </ds:Transforms> let xml1 = CkoXml()! xml1.tag = "ds:Transforms" xml1.updateAttr(at: "ds:Transform", autoCreate: true, attrName: "Algorithm", attrValue: "http://www.w3.org/TR/2001/REC-xml-c14n-20010315") xml1.updateAttr(at: "ds:Transform[1]", autoCreate: true, attrName: "Algorithm", attrValue: "http://www.w3.org/2000/09/xmldsig#enveloped-signature") xml1.updateAttr(at: "ds:Transform[2]", autoCreate: true, attrName: "Algorithm", attrValue: "http://www.w3.org/TR/1999/REC-xpath-19991116") xml1.updateAttr(at: "ds:Transform[2]|ds:XPath", autoCreate: true, attrName: "xmlns:ds", attrValue: "http://www.w3.org/2000/09/xmldsig#") xml1.updateChildContent("ds:Transform[2]|ds:XPath", value: "not(ancestor-or-self::ds:Signature)") // This is the "Transforms" XML fragment passed to AddSameDocRef2. print("\(xml1.getXml()!)") gen.addSameDocRef2("", digestMethod: "sha1", transforms: xml1, refType: "") gen.setRefIdAttr("", value: "Reference-24eb6003-d41c-442c-a731-d4c58f94790b") // -------- Reference 2 -------- gen.addObjectRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties", digestMethod: "sha1", canonMethod: "", prefixList: "", refType: "http://uri.etsi.org/01903#SignedProperties") // -------- Reference 3 -------- gen.addSameDocRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo", digestMethod: "sha1", canonMethod: "", prefixList: "", refType: "") // Provide a certificate + private key. (PFX password is test123) let cert = CkoCert()! success = cert.loadPfxFile("qa_data/pfx/cert_test123.pfx", password: "test123") if success != true { print("\(cert.lastErrorText!)") return } gen.setX509Cert(cert, usePrivateKey: true) gen.keyInfoType = "X509Data+KeyValue" gen.x509Type = "CertChain" // Load XML to be signed... let sbXml = CkoStringBuilder()! xmlToSign.getSb(sbXml) gen.behaviors = "IndentedSignature" // Sign the XML... success = gen.createXmlDSigSb(sbXml) if success != true { print("\(gen.lastErrorText!)") return } // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.writeFile("qa_output/signedXml.xml", charset: "utf-8", emitBom: false) print("\(sbXml.getAsString()!)") // ---------------------------------------- // Verify the signatures we just produced... let verifier = CkoXmlDSig()! success = verifier.loadSignatureSb(sbXml) if success != true { print("\(verifier.lastErrorText!)") return } var numSigs: Int = verifier.numSignatures.intValue var verifyIdx: Int = 0 while verifyIdx < numSigs { verifier.selector = verifyIdx var verified: Bool = verifier.verifySignature(true) if verified != true { print("\(verifier.lastErrorText!)") return } verifyIdx = verifyIdx + 1 } print("All signatures were successfully verified.") } |
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