Interface XMLSignature.SignatureValue

All Superinterfaces:: XMLStructure

Enclosing interface:: XMLSignature

public static interface XMLSignature.SignatureValue
extends XMLStructure

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>

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getId()`	Returns the optional `Id` attribute of this `SignatureValue`, which permits this element to be referenced from elsewhere.
`byte[]`	`getValue()`	Returns the signature value of this `SignatureValue`.
`boolean`	`validate(XMLValidateContext validateContext)`	Validates the signature value.

Methods declared in interface javax.xml.crypto.XMLStructure

isFeatureSupported

Method Detail

getId

String getId()

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)

getValue

byte[] getValue()

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.

validate

boolean validate(XMLValidateContext validateContext)
          throws XMLSignatureException

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.

Parameters:: validateContext - the validating context
Returns:: true if the signature was validated successfully; false otherwise
Throws:: NullPointerException - if validateContext is null; XMLSignatureException - if an unexpected exception occurs while validating the signature