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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* published by the Free Software Foundation. Oracle designates this
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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/*
* ===========================================================================
*
* (C) Copyright IBM Corp. 2003 All Rights Reserved.
*
* ===========================================================================
*/
/*
* $Id: XMLSignature.java,v 1.10 2005/05/10 16:03:48 mullan Exp $
*/
package javax.xml.crypto.dsig;
import javax.xml.crypto.KeySelector;
import javax.xml.crypto.KeySelectorResult;
import javax.xml.crypto.MarshalException;
import javax.xml.crypto.XMLStructure;
import javax.xml.crypto.dsig.keyinfo.KeyInfo;
import java.security.Signature;
import java.util.List;
A representation of the XML Signature element as
defined in the
W3C Recommendation for XML-Signature Syntax and Processing.
This class contains methods for signing and validating XML signatures
with behavior as defined by the W3C specification. The XML Schema Definition
is defined as:
<element name="Signature" type="ds:SignatureType"/>
<complexType name="SignatureType">
<sequence>
<element ref="ds:SignedInfo"/>
<element ref="ds:SignatureValue"/>
<element ref="ds:KeyInfo" minOccurs="0"/>
<element ref="ds:Object" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
<attribute name="Id" type="ID" use="optional"/>
</complexType>
An XMLSignature instance may be created by invoking one of the newXMLSignature methods of the XMLSignatureFactory class.
If the contents of the underlying document containing the
XMLSignature are subsequently modified, the behavior is
undefined.
Note that this class is named XMLSignature rather than
Signature to avoid naming clashes with the existing java.security.Signature class.
Author: Joyce L. Leung, Sean Mullan, Erwin van der Koogh, JSR 105 Expert Group See Also: Since: 1.6
/**
* A representation of the XML <code>Signature</code> element as
* defined in the <a href="http://www.w3.org/TR/xmldsig-core/">
* W3C Recommendation for XML-Signature Syntax and Processing</a>.
* This class contains methods for signing and validating XML signatures
* with behavior as defined by the W3C specification. The XML Schema Definition
* is defined as:
* <pre><code>
* <element name="Signature" type="ds:SignatureType"/>
* <complexType name="SignatureType">
* <sequence>
* <element ref="ds:SignedInfo"/>
* <element ref="ds:SignatureValue"/>
* <element ref="ds:KeyInfo" minOccurs="0"/>
* <element ref="ds:Object" minOccurs="0" maxOccurs="unbounded"/>
* </sequence>
* <attribute name="Id" type="ID" use="optional"/>
* </complexType>
* </code></pre>
* <p>
* An <code>XMLSignature</code> instance may be created by invoking one of the
* {@link XMLSignatureFactory#newXMLSignature newXMLSignature} methods of the
* {@link XMLSignatureFactory} class.
*
* <p>If the contents of the underlying document containing the
* <code>XMLSignature</code> are subsequently modified, the behavior is
* undefined.
*
* <p>Note that this class is named <code>XMLSignature</code> rather than
* <code>Signature</code> to avoid naming clashes with the existing
* {@link Signature java.security.Signature} class.
*
* @see XMLSignatureFactory#newXMLSignature(SignedInfo, KeyInfo)
* @see XMLSignatureFactory#newXMLSignature(SignedInfo, KeyInfo, List, String, String)
* @author Joyce L. Leung
* @author Sean Mullan
* @author Erwin van der Koogh
* @author JSR 105 Expert Group
* @since 1.6
*/
public interface XMLSignature extends XMLStructure {
The XML Namespace URI of the W3C Recommendation for XML-Signature
Syntax and Processing.
/**
* The XML Namespace URI of the W3C Recommendation for XML-Signature
* Syntax and Processing.
*/
final static String XMLNS = "http://www.w3.org/2000/09/xmldsig#";
Validates the signature according to the
core validation processing rules. This method validates the
signature using the existing state, it does not unmarshal and
reinitialize the contents of the XMLSignature using the
location information specified in the context.
This method only validates the signature the first time it is
invoked. On subsequent invocations, it returns a cached result.
Params: - validateContext – the validating context
Throws: - ClassCastException – if the type of
validateContext
is not compatible with this XMLSignature - NullPointerException – if
validateContext is
null - XMLSignatureException – if an unexpected error occurs during
validation that prevented the validation operation from completing
Returns: true if the signature passed core validation,
otherwise false
/**
* Validates the signature according to the
* <a href="http://www.w3.org/TR/xmldsig-core/#sec-CoreValidation">
* core validation processing rules</a>. This method validates the
* signature using the existing state, it does not unmarshal and
* reinitialize the contents of the <code>XMLSignature</code> using the
* location information specified in the context.
*
* <p>This method only validates the signature the first time it is
* invoked. On subsequent invocations, it returns a cached result.
*
* @param validateContext the validating context
* @return <code>true</code> if the signature passed core validation,
* otherwise <code>false</code>
* @throws ClassCastException if the type of <code>validateContext</code>
* is not compatible with this <code>XMLSignature</code>
* @throws NullPointerException if <code>validateContext</code> is
* <code>null</code>
* @throws XMLSignatureException if an unexpected error occurs during
* validation that prevented the validation operation from completing
*/
boolean validate(XMLValidateContext validateContext)
throws XMLSignatureException;
Returns the key info of this XMLSignature.
Returns: the key info (may be null if not specified)
/**
* Returns the key info of this <code>XMLSignature</code>.
*
* @return the key info (may be <code>null</code> if not specified)
*/
KeyInfo getKeyInfo();
Returns the signed info of this XMLSignature.
Returns: the signed info (never null)
/**
* Returns the signed info of this <code>XMLSignature</code>.
*
* @return the signed info (never <code>null</code>)
*/
SignedInfo getSignedInfo();
Returns: an unmodifiable list of XMLObjects (may be empty
but never null)
/**
* Returns an {@link java.util.Collections#unmodifiableList unmodifiable
* list} of {@link XMLObject}s contained in this <code>XMLSignature</code>.
*
* @return an unmodifiable list of <code>XMLObject</code>s (may be empty
* but never <code>null</code>)
*/
List<XMLObject> getObjects();
Returns the optional Id of this XMLSignature.
Returns: the Id (may be null if not specified)
/**
* Returns the optional Id of this <code>XMLSignature</code>.
*
* @return the Id (may be <code>null</code> if not specified)
*/
String getId();
Returns the signature value of this XMLSignature.
Returns: the signature value
/**
* Returns the signature value of this <code>XMLSignature</code>.
*
* @return the signature value
*/
SignatureValue getSignatureValue();
Signs this XMLSignature.
If this method throws an exception, this XMLSignature and
the signContext parameter will be left in the state that
it was in prior to the invocation.
Params: - signContext – the signing context
Throws: - ClassCastException – if the type of
signContext is
not compatible with this XMLSignature - NullPointerException – if
signContext is
null - MarshalException – if an exception occurs while marshalling
- XMLSignatureException – if an unexpected exception occurs while
generating the signature
/**
* Signs this <code>XMLSignature</code>.
*
* <p>If this method throws an exception, this <code>XMLSignature</code> and
* the <code>signContext</code> parameter will be left in the state that
* it was in prior to the invocation.
*
* @param signContext the signing context
* @throws ClassCastException if the type of <code>signContext</code> is
* not compatible with this <code>XMLSignature</code>
* @throws NullPointerException if <code>signContext</code> is
* <code>null</code>
* @throws MarshalException if an exception occurs while marshalling
* @throws XMLSignatureException if an unexpected exception occurs while
* generating the signature
*/
void sign(XMLSignContext signContext) throws MarshalException,
XMLSignatureException;
Returns the result of the KeySelector, if specified, after this XMLSignature has been signed or validated.
Returns: the key selector result, or null if a key
selector has not been specified or this XMLSignature
has not been signed or validated
/**
* Returns the result of the {@link KeySelector}, if specified, after
* this <code>XMLSignature</code> has been signed or validated.
*
* @return the key selector result, or <code>null</code> if a key
* selector has not been specified or this <code>XMLSignature</code>
* has not been signed or validated
*/
KeySelectorResult getKeySelectorResult();
A representation of the XML SignatureValue element as
defined in the
W3C Recommendation for XML-Signature Syntax and Processing.
The XML Schema Definition is defined as:
<element name="SignatureValue" type="ds:SignatureValueType"/>
<complexType name="SignatureValueType">
<simpleContent>
<extension base="base64Binary">
<attribute name="Id" type="ID" use="optional"/>
</extension>
</simpleContent>
</complexType>
Author: Sean Mullan, JSR 105 Expert Group
/**
* A representation of the XML <code>SignatureValue</code> element as
* defined in the <a href="http://www.w3.org/TR/xmldsig-core/">
* W3C Recommendation for XML-Signature Syntax and Processing</a>.
* The XML Schema Definition is defined as:
* <pre>
* <element name="SignatureValue" type="ds:SignatureValueType"/>
* <complexType name="SignatureValueType">
* <simpleContent>
* <extension base="base64Binary">
* <attribute name="Id" type="ID" use="optional"/>
* </extension>
* </simpleContent>
* </complexType>
* </pre>
*
* @author Sean Mullan
* @author JSR 105 Expert Group
*/
public interface SignatureValue extends XMLStructure {
Returns the optional Id attribute of this
SignatureValue, which permits this element to be
referenced from elsewhere.
Returns: the Id attribute (may be null if
not specified)
/**
* Returns the optional <code>Id</code> attribute of this
* <code>SignatureValue</code>, which permits this element to be
* referenced from elsewhere.
*
* @return the <code>Id</code> attribute (may be <code>null</code> if
* not specified)
*/
String getId();
Returns the signature value of this SignatureValue.
Returns: the signature value (may be null if the
XMLSignature has not been signed yet). Each
invocation of this method returns a new clone of the array to
prevent subsequent modification.
/**
* Returns the signature value of this <code>SignatureValue</code>.
*
* @return the signature value (may be <code>null</code> if the
* <code>XMLSignature</code> has not been signed yet). Each
* invocation of this method returns a new clone of the array to
* prevent subsequent modification.
*/
byte[] getValue();
Validates the signature value. This method performs a
cryptographic validation of the signature calculated over the
SignedInfo of the XMLSignature.
This method only validates the signature the first
time it is invoked. On subsequent invocations, it returns a cached
result.
Params: - validateContext – the validating context
Throws: - NullPointerException – if
validateContext is
null - XMLSignatureException – if an unexpected exception occurs while
validating the signature
Returns: true if the signature was
validated successfully; false otherwise
/**
* Validates the signature value. This method performs a
* cryptographic validation of the signature calculated over the
* <code>SignedInfo</code> of the <code>XMLSignature</code>.
*
* <p>This method only validates the signature the first
* time it is invoked. On subsequent invocations, it returns a cached
* result.
*
* @return <code>true</code> if the signature was
* validated successfully; <code>false</code> otherwise
* @param validateContext the validating context
* @throws NullPointerException if <code>validateContext</code> is
* <code>null</code>
* @throws XMLSignatureException if an unexpected exception occurs while
* validating the signature
*/
boolean validate(XMLValidateContext validateContext)
throws XMLSignatureException;
}
}