XMLEncryptor Module

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The XMLEncryptor module encrypts XML documents.

Syntax

SecureBlackbox.XMLEncryptor

Remarks

XMLEncryptor encrypts XML documents with certificates or generic keys.

Property List

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

Method List

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

Event List

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

Config Settings

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

Encoding Property (XMLEncryptor Module)

Specifies XML encoding.

Syntax

• Swift
• Objective-C

public var encoding: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=encoding,setter=setEncoding:) NSString* encoding;

- (NSString*)encoding;
- (void)setEncoding :(NSString*)newEncoding;

Default Value

""

Remarks

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

EncryptedDataType Property (XMLEncryptor Module)

Specifies the type of the data being encrypted.

Syntax

• Swift
• Objective-C

public var encryptedDataType: XMLEncryptorEncryptedDataTypes {
  get {...}
  set {...}
}

public enum XMLEncryptorEncryptedDataTypes: Int32 {
  case cxedtElement = 0
  case cxedtContent = 1
  case cxedtExternal = 2
}

@property (nonatomic,readwrite,assign,getter=encryptedDataType,setter=setEncryptedDataType:) int encryptedDataType;

- (int)encryptedDataType;
- (void)setEncryptedDataType :(int)newEncryptedDataType;

Default Value

0

Remarks

This property specifies the data type to be encrypted.

Supported values:

EncryptionKey Property (XMLEncryptor Module)

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

Syntax

• Swift
• Objective-C

public var encryptionKey: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=encryptionKey,setter=setEncryptionKey:) NSData* encryptionKey;

- (NSData*)encryptionKey;
- (void)setEncryptionKey :(NSData*)newEncryptionKey;

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).

EncryptionMethod Property (XMLEncryptor Module)

The encryption method used to encrypt the document.

Syntax

• Swift
• Objective-C

public var encryptionMethod: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=encryptionMethod,setter=setEncryptionMethod:) NSString* encryptionMethod;

- (NSString*)encryptionMethod;
- (void)setEncryptionMethod :(NSString*)newEncryptionMethod;

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 Module)

Specifies if the encryption key is encrypted.

Syntax

• Swift
• Objective-C

public var encryptKey: Bool {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=encryptKey,setter=setEncryptKey:) BOOL encryptKey;

- (BOOL)encryptKey;
- (void)setEncryptKey :(BOOL)newEncryptKey;

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 Module)

The data that should be encrypted.

Syntax

• Swift
• Objective-C

public var externalData: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=externalData,setter=setExternalData:) NSData* externalData;

- (NSData*)externalData;
- (void)setExternalData :(NSData*)newExternalData;

Remarks

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

FIPSMode Property (XMLEncryptor Module)

Reserved.

Syntax

• Swift
• Objective-C

public var fipsMode: Bool {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=FIPSMode,setter=setFIPSMode:) BOOL FIPSMode;

- (BOOL)FIPSMode;
- (void)setFIPSMode :(BOOL)newFIPSMode;

Default Value

False

Remarks

This property is reserved for future use.

InputBytes Property (XMLEncryptor Module)

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

Syntax

• Swift
• Objective-C

public var inputBytes: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=inputBytes,setter=setInputBytes:) NSData* inputBytes;

- (NSData*)inputBytes;
- (void)setInputBytes :(NSData*)newInputBytes;

Remarks

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

InputFile Property (XMLEncryptor Module)

The XML document to be encrypted.

Syntax

• Swift
• Objective-C

public var inputFile: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=inputFile,setter=setInputFile:) NSString* inputFile;

- (NSString*)inputFile;
- (void)setInputFile :(NSString*)newInputFile;

Default Value

""

Remarks

Provide the path to the XML document to be encrypted.

KeyEncryptionCertificate Property (XMLEncryptor Module)

The certificate used to encrypt a session key.

Syntax

• Swift
• Objective-C

public var keyEncryptionCertificate: Certificate {
  get {...}
  set {...}
}

@property (nonatomic,readonly,assign,getter=keyEncryptionCertBytes) NSData* keyEncryptionCertBytes;

- (NSData*)keyEncryptionCertBytes;

@property (nonatomic,readwrite,assign,getter=keyEncryptionCertHandle,setter=setKeyEncryptionCertHandle:) long long keyEncryptionCertHandle;

- (long long)keyEncryptionCertHandle;
- (void)setKeyEncryptionCertHandle :(long long)newKeyEncryptionCertHandle;

 

Default Value

""

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.

KeyEncryptionKey Property (XMLEncryptor Module)

The symmetric key used to encrypt a session key.

Syntax

• Swift
• Objective-C

public var keyEncryptionKey: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=keyEncryptionKey,setter=setKeyEncryptionKey:) NSData* keyEncryptionKey;

- (NSData*)keyEncryptionKey;
- (void)setKeyEncryptionKey :(NSData*)newKeyEncryptionKey;

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.

KeyEncryptionType Property (XMLEncryptor Module)

Specifies how the session key is encrypted.

Syntax

• Swift
• Objective-C

public var keyEncryptionType: XMLEncryptorKeyEncryptionTypes {
  get {...}
  set {...}
}

public enum XMLEncryptorKeyEncryptionTypes: Int32 {
  case cxetKeyTransport = 0
  case cxetKeyWrap = 1
}

@property (nonatomic,readwrite,assign,getter=keyEncryptionType,setter=setKeyEncryptionType:) int keyEncryptionType;

- (int)keyEncryptionType;
- (void)setKeyEncryptionType :(int)newKeyEncryptionType;

Default Value

0

Remarks

This property specifies how the session key is encrypted.

Supported values:

KeyTransportMethod Property (XMLEncryptor Module)

Specifies how the session key is encrypted.

Syntax

• Swift
• Objective-C

public var keyTransportMethod: XMLEncryptorKeyTransportMethods {
  get {...}
  set {...}
}

public enum XMLEncryptorKeyTransportMethods: Int32 {
  case cxktRSA15 = 0
  case cxktRSAOAEP = 1
}

@property (nonatomic,readwrite,assign,getter=keyTransportMethod,setter=setKeyTransportMethod:) int keyTransportMethod;

- (int)keyTransportMethod;
- (void)setKeyTransportMethod :(int)newKeyTransportMethod;

Default Value

0

Remarks

This property specifies how the session key is encrypted.

Supported values:

KeyWrapMethod Property (XMLEncryptor Module)

The key wrap method used to encrypt the session key.

Syntax

• Swift
• Objective-C

public var keyWrapMethod: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=keyWrapMethod,setter=setKeyWrapMethod:) NSString* keyWrapMethod;

- (NSString*)keyWrapMethod;
- (void)setKeyWrapMethod :(NSString*)newKeyWrapMethod;

Default Value

"Camellia256"

Remarks

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

Supported values:

OutputBytes Property (XMLEncryptor Module)

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

Syntax

• Swift
• Objective-C

public var outputBytes: Data {
  get {...}
}

@property (nonatomic,readonly,assign,getter=outputBytes) NSData* outputBytes;

- (NSData*)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.

OutputFile Property (XMLEncryptor Module)

Defines where to save the encrypted XML document.

Syntax

• Swift
• Objective-C

public var outputFile: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=outputFile,setter=setOutputFile:) NSString* outputFile;

- (NSString*)outputFile;
- (void)setOutputFile :(NSString*)newOutputFile;

Default Value

""

Remarks

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

UseGCM Property (XMLEncryptor Module)

Specifies if GCM mode is enabled.

Syntax

• Swift
• Objective-C

public var useGCM: Bool {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=useGCM,setter=setUseGCM:) BOOL useGCM;

- (BOOL)useGCM;
- (void)setUseGCM :(BOOL)newUseGCM;

Default Value

False

Remarks

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

XMLNode Property (XMLEncryptor Module)

Defines the XML element to encrypt.

Syntax

• Swift
• Objective-C

public var xmlNode: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=XMLNode,setter=setXMLNode:) NSString* XMLNode;

- (NSString*)XMLNode;
- (void)setXMLNode :(NSString*)newXMLNode;

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 Module)

Adds known prefix and correspondent namespace URI.

Syntax

• Swift
• Objective-C

public func addKnownNamespace(prefix: String, uri: String) throws -> Void

- (void)addKnownNamespace:(NSString*)prefix :(NSString*)URI;

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 Module)

Sets or retrieves a configuration setting.

Syntax

• Swift
• Objective-C

public func config(configurationString: String) throws -> String

- (NSString*)config:(NSString*)configurationString;

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, 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 Module)

Performs an additional action.

Syntax

• Swift
• Objective-C

public func doAction(actionID: String, actionParams: String) throws -> String

- (NSString*)doAction:(NSString*)actionID :(NSString*)actionParams;

Remarks

DoAction is a generic method available in every class. 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;....

Encrypt Method (XMLEncryptor Module)

Encrypts an XML document.

Syntax

• Swift
• Objective-C

public func encrypt() throws -> Void

- (void)encrypt;

Remarks

Call this method to encrypt an XML document.

The class 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>

<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>

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>

<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>

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 Module)

Resets the component settings.

Syntax

• Swift
• Objective-C

public func reset() throws -> Void

- (void)reset;

Remarks

Reset is a generic method available in every class.

Error Event (XMLEncryptor Module)

Information about errors during signing.

Syntax

• Swift
• Objective-C

func onError(errorCode: Int32, description: String)

- (void)onError:(int)errorCode :(NSString*)description;

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 Module)

Reports the XML element that is currently being processed.

Syntax

• Swift
• Objective-C

func onFormatElement(startTagWhitespace: inout String, endTagWhitespace: inout String, level: Int32, path: String, hasChildElements: Bool)

- (void)onFormatElement:(NSString**)startTagWhitespace :(NSString**)endTagWhitespace :(int)level :(NSString*)path :(BOOL)hasChildElements;

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 Module)

Reports XML text that is currently being processed.

Syntax

• Swift
• Objective-C

func onFormatText(text: inout String, textType: Int32, level: Int32, path: String)

- (void)onFormatText:(NSString**)text :(int)textType :(int)level :(NSString*)path;

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 Module)

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

Syntax

• Swift
• Objective-C

func onNotification(eventID: String, eventParam: String)

- (void)onNotification:(NSString*)eventID :(NSString*)eventParam;

Remarks

The class fires this event to let the application know about some event, occurrence, or milestone in the class. 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 class, 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

public init(stream: )

public init()

Config Settings (XMLEncryptor Module)

XMLEncryptor Config Settings

Base Config Settings

Trappable Errors (XMLEncryptor Module)

XMLEncryptor Errors