Module java.xml.crypto
Package javax.xml.crypto.dsig

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

    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 Details

    • 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