javax.xml.crypto.dsig

Interface XMLSignature.SignatureValue

Contents
  • 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 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

Document created the 11/06/2005, last modified the 04/03/2020
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