提问人：Faisal Shahab 提问时间：11/1/2023 最后编辑：Faisal Shahab 更新时间：11/4/2023 访问量：153
如何对 xml 进行数字签名和签名
How to digital signature and sign xml
问：
我正在使用 asp.net 核心 2.2 处理 zatca 简化发票，现在我在签名 xml 中遇到了问题。 私钥是使用以下命令（fatoora -csr -csrconfig csr-config-example.properties）从 Zatca SDK 生成的。
我已经从发票和私钥的哈希值中生成了签名值，并使用 xpath <ds：SignatureValue> 将其分配给其必填字段， 在此之后，从 xml 的 SignedProperties 生成符号哈希并将其传递给 <ds：DigestValue><ds：SignedInfo> 的第二个引用，但是当发票生成并在此处检查验证时 （https://sandbox.zatca.gov.sa/TestXML） 它会抛出错误（错误的 xadesSignedPropertiesDigestValue 和错误的签名值）
// this code if use to generate the signature value
public static string SignDataWithECPrivateKey(byte[] data, byte[] privateKey)
{
ECPrivateKeyParameters keyParams = GetECPrivateKeyParameters(privateKey);
ISigner signer = SignerUtilities.GetSigner("SHA256withECDSA");
signer.Init(true, keyParams);
// Initialize for signing
signer.BlockUpdate(data, 0, data.Length);
byte[] signature = signer.GenerateSignature();
return Convert.ToBase64String(signature);
}
private static ECPrivateKeyParameters GetECPrivateKeyParameters(byte[] privateKey)
{
try
{
var privateKeyInfo = PrivateKeyFactory.CreateKey(privateKey);
if (privateKeyInfo is ECPrivateKeyParameters ecPrivateKeyParameters)
{
return ecPrivateKeyParameters;
}
else
{
throw new Exception("Invalid EC private key format.");
}
}
catch (Exception ex)
{
throw new Exception("Error parsing EC private key: " + ex.Message);
}
}
public static string DigitalSignature(string invoiceHash)
{
byte[] privateKeyBytes = Convert.FromBase64String("MIGNAgEAMBAGByqGSM49AgEGBSuBBAAKBHYwdAIBAQQgH1/NUMqrSQLPiraQBpnHiNMjUOkSy/Re2qJpCHaPwfigBwYFK4EEAAqhRANCAAROmIO4u1eYiWqnVRwHzeKBDe4IOEiYsx8Gviqy1YGPuAMlpjWBEPncU/uFuFaNuNMErtTn8me8MI52QQN9uKoS");
byte[] _invoiceData = Convert.FromBase64String(invoiceHash);
return SignDataWithECPrivateKey(_invoiceData, privateKeyBytes);
}
// end
<---- 此代码将生成发票签名属性 （#xadesSignedProperties） 的哈希值--->
public static string DigestMethod(string inputString)
{
// Create an instance of the SHA-256 hash algorithm
using (SHA256 sha256 = SHA256.Create())
{
byte[] inputBytes = Encoding.UTF8.GetBytes(inputString);
// Calculate the hash (digest) of the input
byte[] hashBytes = sha256.ComputeHash(inputBytes);
string hashHex = BitConverter.ToString(hashBytes).Replace("-", "").ToLower();
return Convert.ToBase64String(Encoding.UTF8.GetBytes(hashHex));
}
}
public static MemoryStream CanonicalizeXml(string transformedXml)
{
using (var memoryStream = new MemoryStream(Encoding.UTF8.GetBytes(transformedXml)))
{
//converting xml to standard format
//https://learn.microsoft.com/en-us/dotnet/api/system.security.cryptography.xml.xmldsigc14ntransform?view=dotnet-plat-ext-6.0
var canonicalizer = new XmlDsigC14NTransform(false);
canonicalizer.LoadInput(memoryStream);
var canonicalizedXml = canonicalizer.GetOutput() as MemoryStream;
return canonicalizedXml;
}
}
public static string GenerateSignHash(string inputXml)
{
var canonicalizedXml = InvoiceHashHelper.CanonicalizeXml(inputXml);
return ECDSASigner.DigestMethod(Encoding.UTF8.GetString(canonicalizedXml.ToArray()));
}
using xpath i fetch following xml
/*<xades:SignedProperties Id="xadesSignedProperties">
<xades:SignedSignatureProperties>
<xades:SigningTime>2023-10-25T15:28:31</xades:SigningTime>
<xades:SigningCertificate>
<xades:Cert>
<xades:CertDigest>
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<ds:DigestValue>Y2U5MzY5MTFiOTA4NTc0YmI2NjExNDFlMzBkNmM2YTljZWMxYjRlZDFmYWE3NjE1NjVlNDQzNjA3ODdkYzZjZQ==</ds:DigestValue>
</xades:CertDigest>
<xades:IssuerSerial>
<ds:X509IssuerName>CN=TSZEINVOICE-SubCA-1, DC=extgazt, DC=gov, DC=local</ds:X509IssuerName>
<ds:X509SerialNumber>2475382889481219846080454947234981286678397371</ds:X509SerialNumber>
</xades:IssuerSerial>
</xades:Cert>
</xades:SigningCertificate>
</xades:SignedSignatureProperties>
</xades:SignedProperties>*/
and pass it **GenerateSignHash** Method
//xmlDoc is complete xml template of simplified invoice in which i do changes using xpath
// x509certificate pem fromat = "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";
private static void SigninHash(XmlDocument xmlDoc)
{
byte[] cert = Convert.FromBase64String(GlobalXmlSetting.Cert);
var x509 = new X509Certificate2(cert);
var certInfo = new ECDSASigner().GetCertificateInfo(x509);
//setnodevalue is custom
xmlDoc.SetNodeValue(SigningTimeXpath, certInfo.SignTime);
xmlDoc.SetNodeValue(CertHashXpath, certInfo.CertHash);
xmlDoc.SetNodeValue(CertIssuerXpath, certInfo.CertificateIssuer);
xmlDoc.SetNodeValue(CertSerialNumberXpath, certInfo.CertificateSerialNumber);
var _xml = xmlDoc.SelectSingleNode(SignedPropXpath).OuterXml;
var signHash = ECDSASigner.GenerateSignHash(_xml);
var signatureValue = ECDSASigner.DigitalSignature(_currentHash);
xmlDoc.SetNodeValue(DigitalSignatureXpath, signatureValue);
xmlDoc.SetNodeValue(SignInPropertiesHashXpath, signHash);
_qrCode = new TlvConverter().TestTlv(_currentHash, signatureValue);
PopulateQRCode(xmlDoc, _qrCode);
}
示例 XML ：-
<?xml version="1.0" encoding="UTF-8"?>
<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2">
<ext:UBLExtensions>
<ext:UBLExtension>
<ext:ExtensionURI>urn:oasis:names:specification:ubl:dsig:enveloped:xades</ext:ExtensionURI>
<ext:ExtensionContent>
<sig:UBLDocumentSignatures xmlns:sig="urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2" xmlns:sac="urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2" xmlns:sbc="urn:oasis:names:specification:ubl:schema:xsd:SignatureBasicComponents-2">
<sac:SignatureInformation>
<cbc:ID>urn:oasis:names:specification:ubl:signature:1</cbc:ID>
<sbc:ReferencedSignatureID>urn:oasis:names:specification:ubl:signature:Invoice</sbc:ReferencedSignatureID>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="signature">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2006/12/xml-c14n11" />
<ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256" />
<ds:Reference Id="invoiceSignedData" URI="">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<ds:XPath>not(//ancestor-or-self::ext:UBLExtensions)</ds:XPath>
</ds:Transform>
<ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<ds:XPath>not(//ancestor-or-self::cac:Signature)</ds:XPath>
</ds:Transform>
<ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<ds:XPath>not(//ancestor-or-self::cac:AdditionalDocumentReference[cbc:ID='QR'])</ds:XPath>
</ds:Transform>
<ds:Transform Algorithm="http://www.w3.org/2006/12/xml-c14n11" />
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
<ds:DigestValue>sZwHJNRoZHatRyJ31IHiwE8og5xfcCOwewQV/FQz09Y=</ds:DigestValue>
</ds:Reference>
<ds:Reference Type="http://www.w3.org/2000/09/xmldsig#SignatureProperties" URI="#xadesSignedProperties">
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
<ds:DigestValue>ZTE3MjRlYzYxOTI5ZDdjMGNlMGJkMmI2MGJiNTFiNzQzZTgxYTljZmNiZWExMDc0MmVhOTRjZGUwOTAwOTM1NQ==</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>MEUCIBRiUYVKGoAO9LQFuDQUaWZlJbtrZE/yMXLzhWEc02SeAiEAx1DJ/YU8aFyz/+NJTsMPzVB3PQOha9dc4LGxTGIq2gU=</ds:SignatureValue>
<ds:KeyInfo>
<ds:X509Data>
<ds:X509Certificate>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</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
<ds:Object>
<xades:QualifyingProperties xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" Target="signature">
<xades:SignedProperties Id="xadesSignedProperties">
<xades:SignedSignatureProperties>
<xades:SigningTime>2023-11-01T16:16:17</xades:SigningTime>
<xades:SigningCertificate>
<xades:Cert>
<xades:CertDigest>
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
<ds:DigestValue>Y2U5MzY5MTFiOTA4NTc0YmI2NjExNDFlMzBkNmM2YTljZWMxYjRlZDFmYWE3NjE1NjVlNDQzNjA3ODdkYzZjZQ==</ds:DigestValue>
</xades:CertDigest>
<xades:IssuerSerial>
<ds:X509IssuerName>CN=TSZEINVOICE-SubCA-1, DC=extgazt, DC=gov, DC=local</ds:X509IssuerName>
<ds:X509SerialNumber>2475382889481219846080454947234981286678397371</ds:X509SerialNumber>
</xades:IssuerSerial>
</xades:Cert>
</xades:SigningCertificate>
</xades:SignedSignatureProperties>
</xades:SignedProperties>
</xades:QualifyingProperties>
</ds:Object>
</ds:Signature>
</sac:SignatureInformation>
</sig:UBLDocumentSignatures>
</ext:ExtensionContent>
</ext:UBLExtension>
</ext:UBLExtensions>
<cbc:ProfileID>reporting:1.0</cbc:ProfileID>
<cbc:ID>100012</cbc:ID>
<cbc:UUID>a7a3abb8-0f26-43bd-9cf9-b028d62fb223</cbc:UUID>
<cbc:IssueDate>2022-09-13</cbc:IssueDate>
<cbc:IssueTime>14:40:40</cbc:IssueTime>
<cbc:InvoiceTypeCode name="0200000">388</cbc:InvoiceTypeCode>
<cbc:Note languageID="ar">ABC</cbc:Note>
<cbc:DocumentCurrencyCode>SAR</cbc:DocumentCurrencyCode>
<cbc:TaxCurrencyCode>SAR</cbc:TaxCurrencyCode>
<cac:AdditionalDocumentReference>
<cbc:ID>ICV</cbc:ID>
<cbc:UUID>10</cbc:UUID>
</cac:AdditionalDocumentReference>
<cac:AdditionalDocumentReference>
<cbc:ID>PIH</cbc:ID>
<cac:Attachment>
<cbc:EmbeddedDocumentBinaryObject mimeCode="text/plain">NWZlY2ViNjZmZmM4NmYzOGQ5NTI3ODZjNmQ2OTZjNzljMmRiYzIzOWRkNGU5MWI0NjcyOWQ3M2EyN2ZiNTdlOQ==</cbc:EmbeddedDocumentBinaryObject>
</cac:Attachment>
</cac:AdditionalDocumentReference>
<cac:AdditionalDocumentReference>
<cbc:ID>QR</cbc:ID>
<cac:Attachment>
<cbc:EmbeddedDocumentBinaryObject mimeCode="text/plain">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</cbc:EmbeddedDocumentBinaryObject>
</cac:Attachment>
</cac:AdditionalDocumentReference>
<cac:Signature>
<cbc:ID>urn:oasis:names:specification:ubl:signature:Invoice</cbc:ID>
<cbc:SignatureMethod>urn:oasis:names:specification:ubl:dsig:enveloped:xades</cbc:SignatureMethod>
</cac:Signature>
<cac:AccountingSupplierParty>
<cac:Party>
<cac:PartyIdentification>
<cbc:ID schemeID="CRN">324223432432432</cbc:ID>
</cac:PartyIdentification>
<cac:PostalAddress>
<cbc:StreetName>testA</cbc:StreetName>
<cbc:BuildingNumber>3454</cbc:BuildingNumber>
<cbc:PlotIdentification>1234</cbc:PlotIdentification>
<cbc:CitySubdivisionName>fgffA</cbc:CitySubdivisionName>
<cbc:CityName>RiyadhA</cbc:CityName>
<cbc:PostalZone>12345</cbc:PostalZone>
<cac:Country>
<cbc:IdentificationCode>SA</cbc:IdentificationCode>
</cac:Country>
</cac:PostalAddress>
<cac:PartyTaxScheme>
<cbc:CompanyID>311111111101113</cbc:CompanyID>
<cac:TaxScheme>
<cbc:ID>VAT</cbc:ID>
</cac:TaxScheme>
</cac:PartyTaxScheme>
<cac:PartyLegalEntity>
<cbc:RegistrationName>Acme Widget’s LTD</cbc:RegistrationName>
</cac:PartyLegalEntity>
</cac:Party>
</cac:AccountingSupplierParty>
<cac:AccountingCustomerParty>
<cac:Party>
<cac:PostalAddress>
<cbc:StreetName>baaounA</cbc:StreetName>
<cbc:CitySubdivisionName>fgffA</cbc:CitySubdivisionName>
<cac:Country>
<cbc:IdentificationCode>SA</cbc:IdentificationCode>
</cac:Country>
</cac:PostalAddress>
<cac:PartyTaxScheme>
<cac:TaxScheme>
<cbc:ID>VAT</cbc:ID>
</cac:TaxScheme>
</cac:PartyTaxScheme>
<cac:PartyLegalEntity>
<cbc:RegistrationName>testA</cbc:RegistrationName>
</cac:PartyLegalEntity>
</cac:Party>
</cac:AccountingCustomerParty>
<cac:PaymentMeans>
<cbc:PaymentMeansCode>10</cbc:PaymentMeansCode>
</cac:PaymentMeans>
<cac:AllowanceCharge>
<cbc:ChargeIndicator>false</cbc:ChargeIndicator>
<cbc:AllowanceChargeReason>discount</cbc:AllowanceChargeReason>
<cbc:Amount currencyID="SAR">0.00</cbc:Amount>
<cac:TaxCategory>
<cbc:ID schemeID="UN/ECE 5305" schemeAgencyID="6">S</cbc:ID>
<cbc:Percent>15.00</cbc:Percent>
<cac:TaxScheme>
<cbc:ID schemeID="UN/ECE 5153" schemeAgencyID="6">VAT</cbc:ID>
</cac:TaxScheme>
</cac:TaxCategory>
</cac:AllowanceCharge>
<cac:TaxTotal>
<cbc:TaxAmount currencyID="SAR">300.00</cbc:TaxAmount>
</cac:TaxTotal>
<cac:TaxTotal>
<cbc:TaxAmount currencyID="SAR">300.00</cbc:TaxAmount>
<cac:TaxSubtotal>
<cbc:TaxableAmount currencyID="SAR">2000.00</cbc:TaxableAmount>
<cbc:TaxAmount currencyID="SAR">300.00</cbc:TaxAmount>
<cac:TaxCategory>
<cbc:ID schemeID="UN/ECE 5305" schemeAgencyID="6">S</cbc:ID>
<cbc:Percent>15.00</cbc:Percent>
<cac:TaxScheme>
<cbc:ID schemeID="UN/ECE 5153" schemeAgencyID="6">VAT</cbc:ID>
</cac:TaxScheme>
</cac:TaxCategory>
</cac:TaxSubtotal>
</cac:TaxTotal>
<cac:LegalMonetaryTotal>
<cbc:LineExtensionAmount currencyID="SAR">2000.00</cbc:LineExtensionAmount>
<cbc:TaxExclusiveAmount currencyID="SAR">2000.00</cbc:TaxExclusiveAmount>
<cbc:TaxInclusiveAmount currencyID="SAR">2300.00</cbc:TaxInclusiveAmount>
<cbc:AllowanceTotalAmount currencyID="SAR">0.00</cbc:AllowanceTotalAmount>
<cbc:PrepaidAmount currencyID="SAR">0.00</cbc:PrepaidAmount>
<cbc:PayableAmount currencyID="SAR">2300.00</cbc:PayableAmount>
</cac:LegalMonetaryTotal>
<cac:InvoiceLine>
<cbc:ID>2</cbc:ID>
<cbc:InvoicedQuantity unitCode="PCE">100</cbc:InvoicedQuantity>
<cbc:LineExtensionAmount currencyID="SAR">1000.00</cbc:LineExtensionAmount>
<cac:TaxTotal>
<cbc:TaxAmount currencyID="SAR">150.00</cbc:TaxAmount>
<cbc:RoundingAmount currencyID="SAR">1150.00</cbc:RoundingAmount>
</cac:TaxTotal>
<cac:Item>
<cbc:Name>item2</cbc:Name>
<cac:ClassifiedTaxCategory>
<cbc:ID>S</cbc:ID>
<cbc:Percent>15.00</cbc:Percent>
<cac:TaxScheme>
<cbc:ID>VAT</cbc:ID>
</cac:TaxScheme>
</cac:ClassifiedTaxCategory>
</cac:Item>
<cac:Price>
<cbc:PriceAmount currencyID="SAR">10.00</cbc:PriceAmount>
<cac:AllowanceCharge>
<cbc:ChargeIndicator>true</cbc:ChargeIndicator>
<cbc:AllowanceChargeReason>discount</cbc:AllowanceChargeReason>
<cbc:Amount currencyID="SAR">34.00</cbc:Amount>
</cac:AllowanceCharge>
</cac:Price>
</cac:InvoiceLine>
<cac:InvoiceLine>
<cbc:ID>1</cbc:ID>
<cbc:InvoicedQuantity unitCode="PCE">100</cbc:InvoicedQuantity>
<cbc:LineExtensionAmount currencyID="SAR">1000.00</cbc:LineExtensionAmount>
<cac:TaxTotal>
<cbc:TaxAmount currencyID="SAR">150.00</cbc:TaxAmount>
<cbc:RoundingAmount currencyID="SAR">1150.00</cbc:RoundingAmount>
</cac:TaxTotal>
<cac:Item>
<cbc:Name>item1</cbc:Name>
<cac:ClassifiedTaxCategory>
<cbc:ID>S</cbc:ID>
<cbc:Percent>15.00</cbc:Percent>
<cac:TaxScheme>
<cbc:ID>VAT</cbc:ID>
</cac:TaxScheme>
</cac:ClassifiedTaxCategory>
</cac:Item>
<cac:Price>
<cbc:PriceAmount currencyID="SAR">10.00</cbc:PriceAmount>
<cac:AllowanceCharge>
<cbc:ChargeIndicator>true</cbc:ChargeIndicator>
<cbc:AllowanceChargeReason>discount</cbc:AllowanceChargeReason>
<cbc:Amount currencyID="SAR">34.00</cbc:Amount>
</cac:AllowanceCharge>
</cac:Price>
</cac:InvoiceLine></Invoice>
答：
1赞
Tarek Abdel Rahman
12/3/2023
#1
您的 XML 上有错误的数据
<cac:AllowanceCharge>
<cbc:ChargeIndicator>true</cbc:ChargeIndicator>
<cbc:AllowanceChargeReason>discount</cbc:AllowanceChargeReason>
<cbc:Amount currencyID="SAR">34.00</cbc:Amount>
</cac:AllowanceCharge>
<cbc:ChargeIndicator>true</cbc:ChargeIndicator>
必须是
<cbc:ChargeIndicator>false</cbc:ChargeIndicator>
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0赞
Faisal Shahab
12/3/2023
感谢您的折扣问题通知，但我面临的主要问题是数字签名和签名 xml
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