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/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */
/* * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved. */ /* * $Id$ */ package org.jcp.xml.dsig.internal.dom; import java.math.BigInteger; import javax.xml.crypto.*; import javax.xml.crypto.dom.DOMCryptoContext; import com.sun.org.apache.xml.internal.security.utils.XMLUtils; import org.w3c.dom.Node; import org.w3c.dom.Text;
A DOM-based representation of the XML CryptoBinary simple type as defined in the W3C specification for XML-Signature Syntax and Processing. The XML Schema Definition is defined as:

<simpleType name="CryptoBinary">
  <restriction base = "base64Binary">
  </restriction>
</simpleType>
Author:Sean Mullan
/** * A DOM-based representation of the XML {@code CryptoBinary} simple type * as defined in the W3C specification for XML-Signature Syntax and Processing. * The XML Schema Definition is defined as: * * <pre>{@code * <simpleType name="CryptoBinary"> * <restriction base = "base64Binary"> * </restriction> * </simpleType> * }</pre> * * @author Sean Mullan */
public final class DOMCryptoBinary extends DOMStructure { private final BigInteger bigNum; private final String value;
Create a DOMCryptoBinary instance from the specified BigInteger
Params:
  • bigNum – the arbitrary-length integer
Throws:
/** * Create a {@code DOMCryptoBinary} instance from the specified * {@code BigInteger} * * @param bigNum the arbitrary-length integer * @throws NullPointerException if {@code bigNum} is {@code null} */
public DOMCryptoBinary(BigInteger bigNum) { if (bigNum == null) { throw new NullPointerException("bigNum is null"); } this.bigNum = bigNum; // convert to bitstring byte[] bytes = XMLUtils.getBytes(bigNum, bigNum.bitLength()); value = XMLUtils.encodeToString(bytes); }
Creates a DOMCryptoBinary from a node.
Params:
  • cbNode – a CryptoBinary text node
Throws:
/** * Creates a {@code DOMCryptoBinary} from a node. * * @param cbNode a CryptoBinary text node * @throws MarshalException if value cannot be decoded (invalid format) */
public DOMCryptoBinary(Node cbNode) throws MarshalException { value = cbNode.getNodeValue(); try { bigNum = new BigInteger(1, XMLUtils.decode(((Text) cbNode).getData())); } catch (Exception ex) { throw new MarshalException(ex); } }
Returns the BigInteger that this object contains.
Returns:the BigInteger that this object contains
/** * Returns the {@code BigInteger} that this object contains. * * @return the {@code BigInteger} that this object contains */
public BigInteger getBigNum() { return bigNum; } @Override public void marshal(Node parent, String prefix, DOMCryptoContext context) throws MarshalException { parent.appendChild (DOMUtils.getOwnerDocument(parent).createTextNode(value)); } }