org.apache.xml.security.algorithms
Class MessageDigestAlgorithm

java.lang.Object
  org.apache.xml.security.utils.ElementProxy
      org.apache.xml.security.utils.SignatureElementProxy
          org.apache.xml.security.algorithms.Algorithm
              org.apache.xml.security.algorithms.MessageDigestAlgorithm

public class MessageDigestAlgorithm
extends Algorithm

Digest Message wrapper & selector class.

 MessageDigestAlgorithm.getInstance()
 

Field Summary

static String	ALGO_ID_DIGEST_NOT_RECOMMENDED_MD5 Message Digest - NOT RECOMMENDED MD5
static String	ALGO_ID_DIGEST_RIPEMD160 Message Digest - OPTIONAL RIPEMD-160
static String	ALGO_ID_DIGEST_SHA1 Digest - Required SHA1
static String	ALGO_ID_DIGEST_SHA256 Message Digest - RECOMMENDED SHA256
static String	ALGO_ID_DIGEST_SHA384 Message Digest - OPTIONAL SHA384
static String	ALGO_ID_DIGEST_SHA512 Message Digest - OPTIONAL SHA512

Fields inherited from class org.apache.xml.security.utils.ElementProxy

baseURI, log

Method Summary

byte[]	digest() Proxy method for MessageDigest.digest() which is executed on the internal MessageDigest object.
byte[]	digest(byte[] input) Proxy method for MessageDigest.digest(byte[]) which is executed on the internal MessageDigest object.
int	digest(byte[] buf, int offset, int len) Proxy method for MessageDigest.digest(byte[], int, int) which is executed on the internal MessageDigest object.
MessageDigest	getAlgorithm() Returns the actual MessageDigest algorithm object
String	getBaseLocalName() Returns the localname of the Elements of the sub-class.
String	getBaseNamespace() Returns the namespace of the Elements of the sub-class.
int	getDigestLength() Proxy method for MessageDigest.getDigestLength() which is executed on the internal MessageDigest object.
static MessageDigestAlgorithm	getInstance(Document doc, String algorithmURI) Factory method for constructing a message digest algorithm by name.
String	getJCEAlgorithmString() Proxy method for MessageDigest.getAlgorithm() which is executed on the internal MessageDigest object.
Provider	getJCEProvider() Proxy method for MessageDigest.getProvider() which is executed on the internal MessageDigest object.
static boolean	isEqual(byte[] digesta, byte[] digestb) Proxy method for MessageDigest.isEqual(byte[], byte[]) which is executed on the internal MessageDigest object.
void	reset() Proxy method for MessageDigest.reset() which is executed on the internal MessageDigest object.
void	update(byte input) Proxy method for MessageDigest.update(byte) which is executed on the internal MessageDigest object.
void	update(byte[] input) Proxy method for MessageDigest.update(byte[]) which is executed on the internal MessageDigest object.
void	update(byte[] buf, int offset, int len) Proxy method for MessageDigest.update(byte[], int, int) which is executed on the internal MessageDigest object.

Methods inherited from class org.apache.xml.security.algorithms.Algorithm

getAlgorithmURI, setAlgorithmURI

Methods inherited from class org.apache.xml.security.utils.ElementProxy

addBase64Element, addBase64Text, addBigIntegerElement, addReturnToSelf, addText, addTextElement, appendOther, appendSelf, appendSelf, createElementForFamily, createElementForFamilyLocal, createText, getBaseURI, getBigIntegerFromChildElement, getBytesFromTextChild, getDefaultPrefix, getDocument, getElement, getElementPlusReturns, getFirstChild, getLocalAttribute, getTextFromChildElement, getTextFromTextChild, length, registerDefaultPrefixes, setDefaultPrefix, setDocument, setElement, setElement, setLocalAttribute, setLocalIdAttribute, setXPathNamespaceContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ALGO_ID_DIGEST_NOT_RECOMMENDED_MD5

public static final String ALGO_ID_DIGEST_NOT_RECOMMENDED_MD5

Message Digest - NOT RECOMMENDED MD5

See Also:

Constant Field Values

ALGO_ID_DIGEST_SHA1

public static final String ALGO_ID_DIGEST_SHA1

Digest - Required SHA1

See Also:

Constant Field Values

ALGO_ID_DIGEST_SHA256

public static final String ALGO_ID_DIGEST_SHA256

Message Digest - RECOMMENDED SHA256

See Also:

Constant Field Values

ALGO_ID_DIGEST_SHA384

public static final String ALGO_ID_DIGEST_SHA384

Message Digest - OPTIONAL SHA384

See Also:

Constant Field Values

ALGO_ID_DIGEST_SHA512

public static final String ALGO_ID_DIGEST_SHA512

Message Digest - OPTIONAL SHA512

See Also:

Constant Field Values

ALGO_ID_DIGEST_RIPEMD160

public static final String ALGO_ID_DIGEST_RIPEMD160

Message Digest - OPTIONAL RIPEMD-160

See Also:

Constant Field Values

Method Detail

getInstance

public static MessageDigestAlgorithm getInstance(Document doc,
                                                 String algorithmURI)
                                          throws XMLSignatureException

Factory method for constructing a message digest algorithm by name.

Parameters:

doc -

algorithmURI -

Returns:

The MessageDigestAlgorithm element to attach in document and to digest

Throws:

XMLSignatureException

getAlgorithm

public MessageDigest getAlgorithm()

Returns the actual MessageDigest algorithm object

Returns:

the actual MessageDigest algorithm object

isEqual

public static boolean isEqual(byte[] digesta,
                              byte[] digestb)

Proxy method for MessageDigest.isEqual(byte[], byte[]) which is executed on the internal MessageDigest object.

Parameters:

digesta -

digestb -

Returns:

the result of the MessageDigest.isEqual(byte[], byte[]) method

digest

public byte[] digest()

Proxy method for MessageDigest.digest() which is executed on the internal MessageDigest object.

Returns:

the result of the MessageDigest.digest() method

digest

public byte[] digest(byte[] input)

Proxy method for MessageDigest.digest(byte[]) which is executed on the internal MessageDigest object.

Parameters:

input -

Returns:

the result of the MessageDigest.digest(byte[]) method

digest

public int digest(byte[] buf,
                  int offset,
                  int len)
           throws DigestException

Proxy method for MessageDigest.digest(byte[], int, int) which is executed on the internal MessageDigest object.

Parameters:

buf -

offset -

len -

Returns:

the result of the MessageDigest.digest(byte[], int, int) method

Throws:

DigestException

getJCEAlgorithmString

public String getJCEAlgorithmString()

Proxy method for MessageDigest.getAlgorithm() which is executed on the internal MessageDigest object.

Returns:

the result of the MessageDigest.getAlgorithm() method

getJCEProvider

public Provider getJCEProvider()

Proxy method for MessageDigest.getProvider() which is executed on the internal MessageDigest object.

Returns:

the result of the MessageDigest.getProvider() method

getDigestLength

public int getDigestLength()

Proxy method for MessageDigest.getDigestLength() which is executed on the internal MessageDigest object.

Returns:

the result of the MessageDigest.getDigestLength() method

reset

public void reset()

Proxy method for MessageDigest.reset() which is executed on the internal MessageDigest object.

update

public void update(byte[] input)

Proxy method for MessageDigest.update(byte[]) which is executed on the internal MessageDigest object.

Parameters:

input -

update

public void update(byte input)

Proxy method for MessageDigest.update(byte) which is executed on the internal MessageDigest object.

Parameters:

input -

update

public void update(byte[] buf,
                   int offset,
                   int len)

Proxy method for MessageDigest.update(byte[], int, int) which is executed on the internal MessageDigest object.

Parameters:

buf -

offset -

len -

getBaseNamespace

public String getBaseNamespace()

Description copied from class: ElementProxy

Returns the namespace of the Elements of the sub-class.

Overrides:

getBaseNamespace in class SignatureElementProxy

Returns:

the namespace of the Elements of the sub-class.

getBaseLocalName

public String getBaseLocalName()

Description copied from class: ElementProxy

Returns the localname of the Elements of the sub-class.

Specified by:

getBaseLocalName in class ElementProxy

Returns:

the localname of the Elements of the sub-class.