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如何在 C# 中對(duì)沒有 BOM 前導(dǎo)碼的簽名 xml 文件進(jìn)行 UTF8 編碼

C#

米脂 2023-07-23 13:58:35

我有一個(gè)對(duì)我的 xml 文件進(jìn)行簽名的函數(shù)，該文件采用 utf-8 編碼，但是當(dāng)我應(yīng)用該符號(hào)時(shí)，它顯示“utf-8 with Boom”（錯(cuò)誤版本），我如何正確保存文件private static void FirmarDocumentoComplemento(string pathXmlDocument, string pathCert, string passCert, string pathXmlSignet, string ruta, string rut, string fecha, string tipo){ XmlDocument documentXml = new XmlDocument(); documentXml.Load(pathXmlDocument); SignedXml firmado = new SignedXml(documentXml); var cert = RSA_helper.GetX509Certificate(pathCert, passCert); firmado.SigningKey = (RSA)cert.PrivateKey; firmado.SignedInfo.SignatureMethod = "http://www.w3.org/2000/09/xmldsig#rsa-sha1"; //digest info Reference reference = new Reference(); reference.Uri = ""; reference.DigestMethod = "http://www.w3.org/2000/09/xmldsig#sha1"; firmado.AddReference(reference); // with the public key will be added in the signature part. KeyInfo keyInfo = new KeyInfo(); keyInfo.AddClause(new RSAKeyValue((RSA)cert.PrivateKey)); keyInfo.AddClause(new KeyInfoX509Data(cert)); firmado.KeyInfo = keyInfo; firmado.ComputeSignature(); XmlElement xmlDigitalSignature = firmado.GetXml(); // buscamos el ultimo elemento del documento para agregarle la firma XmlElement elemento = (XmlElement)documentXml.SelectSingleNode(@"//datos_complementarios_declaracion_ingreso/representantes[last()]"); XmlNode parent = elemento.ParentNode; parent.InsertAfter(xmlDigitalSignature, elemento); string ruta_completa = ruta + rut + " - " + tipo + " - " + fecha + " - N - " + "Complemento Firmado.xml"; documentXml.Save(ruta_completa);}

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TA貢獻(xiàn)1829條經(jīng)驗(yàn) 獲得超9個(gè)贊

XmlWriterSettings?settings?=?new?XmlWriterSettings();
settings.Indent?=?true;
settings.Encoding?=?new?UTF8Encoding(false);string?ruta_completa?=?$"{ruta}{rut}?-?{tipo}?-?{fecha}?-?N?-?Complemento?Firmado.xml";

XmlWriter?writer?=?XmlWriter.Create(ruta_completa,?settings);
doc.Save(writer);

您應(yīng)該使用XmlTextWriter的實(shí)例編寫文檔，并在其構(gòu)造函數(shù)中傳遞一個(gè)XmlWriterSettings實(shí)例，其中您將Encoding屬性顯式設(shè)置為不帶 BOM 前導(dǎo)碼的UTF8Encoding實(shí)例

反對(duì) 回復(fù) 2023-07-23