XMLEncryptor Component

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The XMLEncryptor component encrypts XML documents.

Syntax

TsbxXMLEncryptor

Remarks

XMLEncryptor encrypts XML documents with certificates or generic keys.

Property List

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The following is the full list of the properties of the component with short descriptions. Click on the links for further details.

Method List

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The following is the full list of the methods of the component with short descriptions. Click on the links for further details.

Event List

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The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.

Config Settings

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The following is a list of config settings for the component with short descriptions. Click on the links for further details.

Encoding Property (XMLEncryptor Component)

Specifies XML encoding.

Syntax

property Encoding: String read get_Encoding write set_Encoding;

Default Value

''

Remarks

Use this property to specify the encoding to apply to the XML documents.

EncryptedDataType Property (XMLEncryptor Component)

Specifies the type of the data being encrypted.

Syntax

property EncryptedDataType: TsbxXMLEncryptedDataTypes read get_EncryptedDataType write set_EncryptedDataType;

TsbxXMLEncryptedDataTypes = (
  cxedtElement,
  cxedtContent,
  cxedtExternal
);

Default Value

cxedtElement

Remarks

This property specifies the data type to be encrypted.

Supported values:

If the XMLNode property is set to the empty string, and the InputStream and InputFile properties are not provided, then a new XML document will be created with the xenc:EncryptedData element as a document element.

EncryptionKey Property (XMLEncryptor Component)

The symmetric (session) key used to encrypt the data.

Syntax

property EncryptionKey: TBytes read get_EncryptionKey write set_EncryptionKey;

Remarks

Use this property to provide the encryption symmetric (session) key that will be used to encrypt a data.

It is required when the EncryptKey property is disabled. If the EncryptKey property is enabled, and no value is set, the component will generate a random session key (recommended).

This property is not available at design time.

EncryptionMethod Property (XMLEncryptor Component)

The encryption method used to encrypt the document.

Syntax

property EncryptionMethod: String read get_EncryptionMethod write set_EncryptionMethod;

Default Value

'AES256'

Remarks

This property contains the encryption algorithm used to encrypt the XML document.

Supported values:

If UseGCM property is enabled, then supported values are:

EncryptKey Property (XMLEncryptor Component)

Specifies if the encryption key is encrypted.

Syntax

property EncryptKey: Boolean read get_EncryptKey write set_EncryptKey;

Default Value

false

Remarks

Use this property to specify if encryption (session) key should be encrypted and also added to the encrypted data.

ExternalData Property (XMLEncryptor Component)

The data that should be encrypted.

Syntax

property ExternalData: TBytes read get_ExternalData write set_ExternalData;

Remarks

Use this property to provide the data that should be encrypted if EncryptedDataType property is set to cxedtExternal value.

This property is not available at design time.

FIPSMode Property (XMLEncryptor Component)

Reserved.

Syntax

property FIPSMode: Boolean read get_FIPSMode write set_FIPSMode;

Default Value

false

Remarks

This property is reserved for future use.

InputBytes Property (XMLEncryptor Component)

Use this property to pass the input to component in byte array form.

Syntax

property InputBytes: TBytes read get_InputBytes write set_InputBytes;

Remarks

Assign a byte array containing the data to be processed to this property.

This property is not available at design time.

InputFile Property (XMLEncryptor Component)

The XML document to be encrypted.

Syntax

property InputFile: String read get_InputFile write set_InputFile;

Default Value

''

Remarks

Provide the path to the XML document to be encrypted.

KeyEncryptionCertificate Property (XMLEncryptor Component)

The certificate used to encrypt a session key.

Syntax

property KeyEncryptionCertificate: TsbxCertificate read get_KeyEncryptionCertificate write set_KeyEncryptionCertificate;

Remarks

Use this property to provide the encryption certificate that will be used to encrypt a session key. It is required when the EncryptKey property is enabled and the KeyEncryptionType is set to cxetKeyTransport value.

This property is not available at design time.

Please refer to the Certificate type for a complete list of fields.

KeyEncryptionKey Property (XMLEncryptor Component)

The symmetric key used to encrypt a session key.

Syntax

property KeyEncryptionKey: TBytes read get_KeyEncryptionKey write set_KeyEncryptionKey;

Remarks

Use this property to provide the encryption symmetric key that will be used to encrypt a session key. It is required when the EncryptKey property is enabled and KeyEncryptionType is set to cxetKeyWrap value.

This property is not available at design time.

KeyEncryptionType Property (XMLEncryptor Component)

Specifies how the session key is encrypted.

Syntax

property KeyEncryptionType: TsbxXMLKeyEncryptionTypes read get_KeyEncryptionType write set_KeyEncryptionType;

TsbxXMLKeyEncryptionTypes = (
  cxetKeyTransport,
  cxetKeyWrap
);

Default Value

cxetKeyTransport

Remarks

This property specifies how the session key is encrypted.

Supported values:

KeyTransportMethod Property (XMLEncryptor Component)

Specifies how the session key is encrypted.

Syntax

property KeyTransportMethod: TsbxXMLKeyTransportMethods read get_KeyTransportMethod write set_KeyTransportMethod;

TsbxXMLKeyTransportMethods = (
  cxktRSA15,
  cxktRSAOAEP
);

Default Value

cxktRSA15

Remarks

This property specifies how the session key is encrypted.

Supported values:

KeyWrapMethod Property (XMLEncryptor Component)

The key wrap method used to encrypt the session key.

Syntax

property KeyWrapMethod: String read get_KeyWrapMethod write set_KeyWrapMethod;

Default Value

'Camellia256'

Remarks

This property specifies the key wrap algorithm used to encrypt the session key.

Supported values:

OutputBytes Property (XMLEncryptor Component)

Use this property to read the output the component object has produced.

Syntax

property OutputBytes: TBytes read get_OutputBytes;

Remarks

Read the contents of this property after the operation has completed to read the produced output. This property will only be set if the OutputFile and OutputStream properties had not been assigned.

This property is read-only and not available at design time.

OutputFile Property (XMLEncryptor Component)

Defines where to save the encrypted XML document.

Syntax

property OutputFile: String read get_OutputFile write set_OutputFile;

Default Value

''

Remarks

Specifies the path where the encrypted XML document should be saved.

UseGCM Property (XMLEncryptor Component)

Specifies if GCM mode is enabled.

Syntax

property UseGCM: Boolean read get_UseGCM write set_UseGCM;

Default Value

false

Remarks

Use this property to enable Galois/Counter Mode (GCM) mode for AES encryption method.

XMLNode Property (XMLEncryptor Component)

Defines the XML element to encrypt.

Syntax

property XMLNode: String read get_XMLNode write set_XMLNode;

Default Value

''

Remarks

Defines the XML element/node to encrypt or in case if cxedtExternal encryption data type is used where to save the encrypted data.

Supported values are:

AddKnownNamespace Method (XMLEncryptor Component)

Adds known prefix and correspondent namespace URI.

Syntax

procedure AddKnownNamespace(Prefix: String; URI: String);

Remarks

Use this method to add a known prefix and namespace URI that are used in XPath expression within XMLElement/XMLNode property, and within TargetXMLElement and XPathPrefixList properties of the references.

Config Method (XMLEncryptor Component)

Sets or retrieves a configuration setting.

Syntax

function Config(ConfigurationString: String): String;

Remarks

Config is a generic method available in every component. It is used to set and retrieve configuration settings for the component.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the component, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

DoAction Method (XMLEncryptor Component)

Performs an additional action.

Syntax

function DoAction(ActionID: String; ActionParams: String): String;

Remarks

DoAction is a generic method available in every component. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time.

The unique identifier (case insensitive) of the action is provided in the ActionID parameter.

ActionParams contains the value of a single parameter, or a list of multiple parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....

Common ActionIDs:

Encrypt Method (XMLEncryptor Component)

Encrypts an XML document.

Syntax

procedure Encrypt();

Remarks

Call this method to encrypt an XML document.

The component could be used to encrypt the SOAP message as well.

Example 1: Encrypting the SOAP message

void EncryptSOAPMessage(string inputFilename, string outputFilename, string cert, string certPassword) { string encKeyId = "EK-" + Guid.NewGuid().ToString(); string encDataId = "ED-" + Guid.NewGuid().ToString(); using (Xmlencryptor encryptor = new Xmlencryptor()) { encryptor.InputFile = inputFilename; encryptor.OutputFile = outputFilename; string certB64; using (Certificatemanager certMgr = new Certificatemanager()) { certMgr.ImportFromFile(cert, certPassword); encryptor.KeyEncryptionCertificate = certMgr.Certificate; using (Utils utils = new Utils()) { var certBytes = certMgr.Certificate.Bytes; certB64 = utils.Base64Encode(certBytes, false); } } encryptor.XMLNode = "/soapv11:Envelope/soapv11:Body"; encryptor.EncryptedDataType = XmlencryptorEncryptedDataTypes.cxedtContent; encryptor.EncryptionMethod = "AES128"; encryptor.EncryptKey = true; encryptor.KeyEncryptionType = XmlencryptorKeyEncryptionTypes.cxetKeyTransport; encryptor.KeyTransportMethod = XmlencryptorKeyTransportMethods.cxktRSA15; encryptor.Config($"EncryptedDataID={encDataId}"); encryptor.Config($"EncryptedKeyID={encKeyId}"); encryptor.Config("EncryptedKeyXMLElement=/soapv11:Envelope/soapv11:Header/wssev10:Security"); encryptor.Config("KeyInfoCustomXML=<wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" " + "xmlns:wsse11=\"http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd\" wsse11:TokenType=\"http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey\">" + $"<wsse:Reference URI=\"#{encKeyId}\"/>" + "</wsse:SecurityTokenReference>"); encryptor.Config("EncryptedKeyInfoCustomXML=<wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\">" + $"<ds:X509Data xmlns:ds=\"http://www.w3.org/2000/09/xmldsig#\">{certB64}</ds:X509Data>" + "</wsse:SecurityTokenReference>"); encryptor.Encrypt(); } } EncryptSOAPMessage(@"soap_test.xml", @"soap_encrypted.xml", @"cert.pfx", "password"); Note: The above code expects that the SOAP message has a WS Security header element.

Sample SOAP message:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" soap:mustUnderstand="1">
    </wsse:Security>
  </soap:Header>
  <soap:Body>
    <ns:Data xmlns:ns="http://test.com">Sample message</ns:Data>
  </soap:Body>
</soap:Envelope>

Sample encrypted SOAP message produced by the above code:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" soap:mustUnderstand="1">
      <xenc:EncryptedKey Id="EK-89565c75-9556-43d3-9de0-35ce6577e798" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
        <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5"/>
        <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
          <wsse:SecurityTokenReference xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
            <ds:X509Data xmlns:ds="http://www.w3.org/2000/09/xmldsig#">...</ds:X509Data>
          </wsse:SecurityTokenReference>
        </ds:KeyInfo>
        <xenc:CipherData>
          <xenc:CipherValue>...</xenc:CipherValue>
        </xenc:CipherData>
      </xenc:EncryptedKey>
    </wsse:Security>
  </soap:Header>
  <soap:Body>
    <xenc:EncryptedData Id="ED-90fe019e-0093-489d-a646-7ae0cee237c2" Type="http://www.w3.org/2001/04/xmlenc#Content" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
      <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes128-cbc"/>
      <ds:KeyInfo>
        <wsse:SecurityTokenReference xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsse11="http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd" wsse11:TokenType="http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey">
          <wsse:Reference URI="#EK-89565c75-9556-43d3-9de0-35ce6577e798"/>
        </wsse:SecurityTokenReference>
      </ds:KeyInfo>
      <xenc:CipherData>
        <xenc:CipherValue>...</xenc:CipherValue>
      </xenc:CipherData>
    </xenc:EncryptedData>
  </soap:Body>
</soap:Envelope>

Example 2: Decrypting the SOAP message

void DecryptSOAPMessage(string inputFilename, string outputFilename, string cert, string certPassword) { using (Xmldecryptor decryptor = new Xmldecryptor()) { decryptor.InputFile = inputFilename; decryptor.OutputFile = outputFilename; using (Certificatemanager certMgr = new Certificatemanager()) { certMgr.ImportFromFile(cert, certPassword); decryptor.KeyDecryptionCertificate = certMgr.Certificate; } decryptor.XMLElement = "/soapv11:Envelope/soapv11:Body/xenc:EncryptedData"; decryptor.Config("EncryptedKeyXMLElement=/soapv11:Envelope/soapv11:Header/wssev10:Security"); decryptor.Decrypt(); } } DecryptSOAPMessage(@"soap_encrypted.xml", @"soap_decrypted.xml", @"cert.pfx", "password"); Example 3: Signing and encrypting the SOAP message

void SignAndEncryptSOAPMessage(string inputFilename, string outputFilename, string signingCert, string signingCertPassword, string encryptionCert, string encryptionCertPassword) { byte[] data; string encKeyId = "EK-" + Guid.NewGuid().ToString(); string encDataId1 = "ED-" + Guid.NewGuid().ToString(); string encDataId2 = "ED-" + Guid.NewGuid().ToString(); // Step 1: Creating Web service security (WSS) signature using (Soapsigner signer = new Soapsigner()) { signer.InputFile = inputFilename; // loading the signing certificate using (Certificatemanager certMgr = new Certificatemanager()) { certMgr.ImportFromFile(encryptionCert, encryptionCertPassword); signer.SigningCertificate = certMgr.Certificate; } signer.NewSignature.SignatureType = SOAPSignatureTypes.sstWSSSignature; signer.NewSignature.HashAlgorithm = "SHA256"; signer.NewSignature.XAdES = false; signer.SecurityHeaderIndex = 0; signer.AddBodyReference("ID-" + Guid.NewGuid().ToString(), false); signer.Sign(); data = signer.OutputBytes; } using (Xmlencryptor encryptor = new Xmlencryptor()) { // Step 2: loading the encryption certificate string certB64; using (Certificatemanager certMgr = new Certificatemanager()) { certMgr.ImportFromFile(encryptionCert, encryptionCertPassword); encryptor.KeyEncryptionCertificate = certMgr.Certificate; using (Utils utils = new Utils()) { var certBytes = certMgr.Certificate.Bytes; certB64 = utils.Base64Encode(certBytes, false); } } // Step 3: generating random key encryption key (128-bit length) // this key will be used for both encryptions byte[] KEK; using (Rnd rnd = new Rnd()) { KEK = rnd.NextBytes(16); } encryptor.KeyEncryptionKey = KEK; // Step 4: encrypting Body element and placing encrypted key to the Security block in the SOAP Message Header encryptor.XMLNode = "/soapv11:Envelope/soapv11:Body"; encryptor.EncryptedDataType = XmlencryptorEncryptedDataTypes.cxedtContent; encryptor.EncryptionMethod = "AES128"; encryptor.EncryptKey = true; encryptor.KeyEncryptionType = XmlencryptorKeyEncryptionTypes.cxetKeyTransport; encryptor.KeyTransportMethod = XmlencryptorKeyTransportMethods.cxktRSA15; encryptor.Config($"EncryptedDataID={encDataId1}"); encryptor.Config($"EncryptedKeyID={encKeyId}"); encryptor.Config("EncryptedKeyXMLElement=/soapv11:Envelope/soapv11:Header/wssev10:Security"); encryptor.Config("KeyInfoCustomXML=<wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" " + "xmlns:wsse11=\"http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd\" wsse11:TokenType=\"http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey\">" + $"<wsse:Reference URI=\"#{encKeyId}\"/>" + "</wsse:SecurityTokenReference>"); encryptor.Config("EncryptedKeyInfoCustomXML=<wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\">" + $"<ds:X509Data xmlns:ds=\"http://www.w3.org/2000/09/xmldsig#\">{certB64}</ds:X509Data>" + "</wsse:SecurityTokenReference>"); encryptor.InputBytes = data; encryptor.Encrypt(); // Step 5: encrypting WSS Signature encryptor.InputBytes = encryptor.OutputBytes; // resetting settings encryptor.Config("EncryptedKeyXMLElement="); encryptor.Config("EncryptedKeyInfoCustomXML="); encryptor.XMLNode = "/soapv11:Envelope/soapv11:Header/wsse:Security/ds:Signature"; encryptor.EncryptedDataType = XmlencryptorEncryptedDataTypes.cxedtElement; encryptor.EncryptKey = false; encryptor.Config($"EncryptedDataID={encDataId2}"); encryptor.Config("KeyInfoCustomXML=<wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" " + "xmlns:wsse11=\"http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd\" wsse11:TokenType=\"http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey\">" + $"<wsse:Reference URI=\"#{encKeyId}\"/>" + "</wsse:SecurityTokenReference>"); encryptor.Encrypt(); data = encryptor.OutputBytes; } // Step 6: miscellaneous XML DOM manipulations, not supported by XMLEncryptor, but may be required by SOAP standard using (Soapsigner signer = new Soapsigner()) { signer.InputBytes = data; signer.OutputFile = outputFilename; signer.Open(); // Adding xenc:ReferenceList element to xenc:EncryptedKey element signer.SetInnerXML("/soapv11:Envelope/soapv11:Header/wssev10:Security/xenc:EncryptedKey", signer.GetInnerXML("/soapv11:Envelope/soapv11:Header/wssev10:Security/xenc:EncryptedKey") + "<xenc:ReferenceList>" + $"<xenc:DataReference URI=\"#{encDataId1}\"/>" + $"<xenc:DataReference URI=\"#{encDataId2}\"/>" + "</xenc:ReferenceList>"); // swapping the order of elements in WSS Security header // SOAP requires that items in the header are placed in the order that they will be processed, not the order they were generated // because the decryption should be performed before veryfing SOAP message, the xenc:EncryptedKey element should be placed first var encKeyContent = signer.GetOuterXML("/soapv11:Envelope/soapv11:Header/wssev10:Security/xenc:EncryptedKey"); var secContent = signer.GetInnerXML("/soapv11:Envelope/soapv11:Header/wssev10:Security"); var k = secContent.IndexOf(encKeyContent, StringComparison.Ordinal); if (k != -1) signer.SetInnerXML("/soapv11:Envelope/soapv11:Header/wssev10:Security", encKeyContent + secContent.Substring(0, k)); signer.Close(true); } } SignAndEncryptSOAPMessage(@"soap_test.xml", @"soap_signed_encrypted.xml", @"cert.pfx", "password", @"cert2.pfx", "password2"); Sample SOAP message:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <ns:Data xmlns:ns="http://test.com">Sample message</ns:Data>
  </soap:Body>
</soap:Envelope>

Sample signed and encrypted SOAP message produced by the above code:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" soap:mustUnderstand="1">
      <xenc:EncryptedKey Id="EK-14e69f03-fc61-48f1-b825-b03ca613f0f8" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
        <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#"/>
        <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
          <wsse:SecurityTokenReference xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
            <ds:X509Data xmlns:ds="http://www.w3.org/2000/09/xmldsig#">...</ds:X509Data>
          </wsse:SecurityTokenReference>
        </ds:KeyInfo>
        <xenc:CipherData xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
          <xenc:CipherValue>...</xenc:CipherValue>
        </xenc:CipherData>
        <xenc:ReferenceList>
          <xenc:DataReference URI="#ED-65385224-0bb5-43f0-b4bf-67a9e9452c10"/>
          <xenc:DataReference URI="#ED-4267b8f3-8662-4441-99ec-32a2e9180288"/>
        </xenc:ReferenceList>
      </xenc:EncryptedKey>
      <wsse:BinarySecurityToken ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3" EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" wsu:Id="id-1135467976" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">...</wsse:BinarySecurityToken>
      <xenc:EncryptedData Id="ED-4267b8f3-8662-4441-99ec-32a2e9180288" Type="http://www.w3.org/2001/04/xmlenc#Element" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
        <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes128-cbc"/>
        <ds:KeyInfo>
          <wsse:SecurityTokenReference xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsse11="http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd" wsse11:TokenType="http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey">
            <wsse:Reference URI="#EK-14e69f03-fc61-48f1-b825-b03ca613f0f8"/>
          </wsse:SecurityTokenReference>
        </ds:KeyInfo>
        <xenc:CipherData>
          <xenc:CipherValue>...</xenc:CipherValue>
        </xenc:CipherData>
      </xenc:EncryptedData>
    </wsse:Security>
  </soap:Header>
  <soap:Body wsu:Id="ID-5bbf3495-d919-416e-96c3-67759aab9cf8" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
    <xenc:EncryptedData Id="ED-65385224-0bb5-43f0-b4bf-67a9e9452c10" Type="http://www.w3.org/2001/04/xmlenc#Content" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
      <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes128-cbc"/>
      <ds:KeyInfo>
        <wsse:SecurityTokenReference xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsse11="http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd" wsse11:TokenType="http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey">
          <wsse:Reference URI="#EK-14e69f03-fc61-48f1-b825-b03ca613f0f8"/>
        </wsse:SecurityTokenReference>
      </ds:KeyInfo>
      <xenc:CipherData>
        <xenc:CipherValue>...</xenc:CipherValue>
      </xenc:CipherData>
    </xenc:EncryptedData>
  </soap:Body>
</soap:Envelope>

Example 4: Decrypting and verifying the SOAP message

void DecryptAndVerifySOAPMessage(string inputFilename, string outputFilename, string decryptionCert, string decryptionCertPassword) { byte[] data; using (Xmldecryptor decryptor = new Xmldecryptor()) { decryptor.InputFile = inputFilename; decryptor.OutputFile = outputFilename; using (Certificatemanager certMgr = new Certificatemanager()) { certMgr.ImportFromFile(decryptionCert, decryptionCertPassword); decryptor.KeyDecryptionCertificate = certMgr.Certificate; } decryptor.Config("EncryptedKeyXMLElement=/soapv11:Envelope/soapv11:Header/wssev10:Security"); decryptor.Decrypt(); } using (Soapverifier verifier = new Soapverifier()) { verifier.InputFile = outputFilename; verifier.Verify(); if ((verifier.Signatures.Count != 1) || (verifier.Signatures[0].SignatureValidationResult != SignatureValidities.svtValid)) throw new Exception("Signature not found or failed to verify a signature"); } } DecryptAndVerifySOAPMessage(@"soap_signed_encrypted.xml", @"soap_signed_decrypted.xml", @"cert2.pfx", "password2");

Reset Method (XMLEncryptor Component)

Resets the component settings.

Syntax

procedure Reset();

Remarks

Reset is a generic method available in every component.

Error Event (XMLEncryptor Component)

Information about errors during signing.

Syntax

type TErrorEvent = procedure (
  Sender: TObject;
  ErrorCode: Integer;
  const Description: String
) of Object;

property OnError: TErrorEvent read FOnError write FOnError;

Remarks

The event is fired in case of exceptional conditions during signing.

ErrorCode contains an error code and Description contains a textual description of the error.

FormatElement Event (XMLEncryptor Component)

Reports the XML element that is currently being processed.

Syntax

type TFormatElementEvent = procedure (
  Sender: TObject;
  var StartTagWhitespace: String;
  var EndTagWhitespace: String;
  Level: Integer;
  const Path: String;
  HasChildElements: Boolean
) of Object;

property OnFormatElement: TFormatElementEvent read FOnFormatElement write FOnFormatElement;

Remarks

Path and Level specify the path to the XML element being processed and its nesting level, respectively.

HasChildElements specify if processed XML element has child elements.

Among other purposes, this event may be used to add whitespace formatting before or after a particular element in the signature.

FormatText Event (XMLEncryptor Component)

Reports XML text that is currently being processed.

Syntax

type TFormatTextEvent = procedure (
  Sender: TObject;
  var Text: String;
  TextType: Integer;
  Level: Integer;
  const Path: String
) of Object;

property OnFormatText: TFormatTextEvent read FOnFormatText write FOnFormatText;

Remarks

TextType parameter specifies the type of the XML text (normal or Base64-encoded) that is stored in the element; Path and Level specify the path to the XML element and its nesting level.

Among other purposes, this event may be used to add whitespace formatting before or after a particular element in the signature.

Notification Event (XMLEncryptor Component)

This event notifies the application about an underlying control flow event.

Syntax

type TNotificationEvent = procedure (
  Sender: TObject;
  const EventID: String;
  const EventParam: String
) of Object;

property OnNotification: TNotificationEvent read FOnNotification write FOnNotification;

Remarks

The component fires this event to let the application know about some event, occurrence, or milestone in the component. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time.

The unique identifier of the event is provided in the EventID parameter. EventParam contains any parameters accompanying the occurrence. Depending on the type of the component, the exact action it is performing, or the document being processed, one or both may be omitted.

Certificate Type

Encapsulates an individual X.509 certificate.

Remarks

This type keeps and provides access to X.509 certificate details.

Fields

Constructors

>

constructor Create();

Config Settings (XMLEncryptor Component)

The component accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the component, access to these internal properties is provided through the Config method.

XMLEncryptor Config Settings

Base Config Settings

Trappable Errors (XMLEncryptor Component)

XMLEncryptor Errors