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/*
 * $Id: DigestMethod.java,v 1.6 2005/05/10 16:03:46 mullan Exp $
 */
package javax.xml.crypto.dsig;

import javax.xml.crypto.AlgorithmMethod;
import javax.xml.crypto.XMLStructure;
import javax.xml.crypto.dsig.spec.DigestMethodParameterSpec;
import java.security.spec.AlgorithmParameterSpec;

A representation of the XML DigestMethod element as defined in the W3C Recommendation for XML-Signature Syntax and Processing. The XML Schema Definition is defined as:
  <element name="DigestMethod" type="ds:DigestMethodType"/>
    <complexType name="DigestMethodType" mixed="true">
      <sequence>
        <any namespace="##any" minOccurs="0" maxOccurs="unbounded"/>
          <!-- (0,unbounded) elements from (1,1) namespace -->
      </sequence>
      <attribute name="Algorithm" type="anyURI" use="required"/>
    </complexType>
A DigestMethod instance may be created by invoking the newDigestMethod method of the XMLSignatureFactory class.
Author:Sean Mullan, JSR 105 Expert Group
See Also:
Since:1.6
/** * A representation of the XML <code>DigestMethod</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> * &lt;element name="DigestMethod" type="ds:DigestMethodType"/&gt; * &lt;complexType name="DigestMethodType" mixed="true"&gt; * &lt;sequence&gt; * &lt;any namespace="##any" minOccurs="0" maxOccurs="unbounded"/&gt; * &lt;!-- (0,unbounded) elements from (1,1) namespace --&gt; * &lt;/sequence&gt; * &lt;attribute name="Algorithm" type="anyURI" use="required"/&gt; * &lt;/complexType&gt; * </pre> * * A <code>DigestMethod</code> instance may be created by invoking the * {@link XMLSignatureFactory#newDigestMethod newDigestMethod} method * of the {@link XMLSignatureFactory} class. * * @author Sean Mullan * @author JSR 105 Expert Group * @since 1.6 * @see XMLSignatureFactory#newDigestMethod(String, DigestMethodParameterSpec) */
public interface DigestMethod extends XMLStructure, AlgorithmMethod {
The SHA1 digest method algorithm URI.
/** * The <a href="http://www.w3.org/2000/09/xmldsig#sha1"> * SHA1</a> digest method algorithm URI. */
static final String SHA1 = "http://www.w3.org/2000/09/xmldsig#sha1";
The SHA256 digest method algorithm URI.
/** * The <a href="http://www.w3.org/2001/04/xmlenc#sha256"> * SHA256</a> digest method algorithm URI. */
static final String SHA256 = "http://www.w3.org/2001/04/xmlenc#sha256";
The SHA512 digest method algorithm URI.
/** * The <a href="http://www.w3.org/2001/04/xmlenc#sha512"> * SHA512</a> digest method algorithm URI. */
static final String SHA512 = "http://www.w3.org/2001/04/xmlenc#sha512";
The RIPEMD-160 digest method algorithm URI.
/** * The <a href="http://www.w3.org/2001/04/xmlenc#ripemd160"> * RIPEMD-160</a> digest method algorithm URI. */
static final String RIPEMD160 = "http://www.w3.org/2001/04/xmlenc#ripemd160";
Returns the algorithm-specific input parameters associated with this DigestMethod.

The returned parameters can be typecast to a DigestMethodParameterSpec object.

Returns:the algorithm-specific parameters (may be null if not specified)
/** * Returns the algorithm-specific input parameters associated with this * <code>DigestMethod</code>. * * <p>The returned parameters can be typecast to a {@link * DigestMethodParameterSpec} object. * * @return the algorithm-specific parameters (may be <code>null</code> if * not specified) */
AlgorithmParameterSpec getParameterSpec(); }