java.security
Class MessageDigest

java.lang.Object
  java.security.MessageDigestSpi
      java.security.MessageDigest

public abstract class MessageDigest

extends MessageDigestSpi

Nested Class Summary
(package private) static class	MessageDigest.Delegate

 

Model Field Summary

 

Model fields inherited from class java.lang.Object

_getClass, objectState, theString

 

Ghost Field Summary

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary
private  String	algorithm
private static int	IN_PROGRESS
private static int	INITIAL
private  Provider	provider
private  int	state

 

Constructor Summary
protected	MessageDigest(String)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
Object	clone()
byte[]	digest()
byte[]	digest(byte[])
int	digest(byte[], int, int)
String	getAlgorithm()
int	getDigestLength()
static MessageDigest	getInstance(String)
static MessageDigest	getInstance(String, String)
static MessageDigest	getInstance(String, Provider)
Provider	getProvider()
static boolean	isEqual(byte[], byte[])
void	reset()
String	toString()
void	update(byte)
void	update(byte[])
void	update(byte[], int, int)

 

Methods inherited from class java.security.MessageDigestSpi

engineDigest, engineDigest, engineGetDigestLength, engineReset, engineUpdate, engineUpdate

 

Methods inherited from class java.lang.Object

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

 

Field Detail

INITIAL

private static final int INITIAL

algorithm

private String algorithm

state

private int state

provider

private Provider provider

IN_PROGRESS

private static final int IN_PROGRESS

MessageDigest

protected MessageDigest(String)

getDigestLength

public final int getDigestLength()

reset

public void reset()

digest

public byte[] digest()

update

public void update(byte)

update

public void update(byte[])

digest

public byte[] digest(byte[])

digest

public int digest(byte[],
                  int,
                  int)
           throws DigestException

Throws:

DigestException

update

public void update(byte[],
                   int,
                   int)

isEqual

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

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class MessageDigestSpi

Throws:

CloneNotSupportedException

getAlgorithm

public final String getAlgorithm()

toString

public String toString()

Overrides:

toString in class Object

getProvider

public final Provider getProvider()

getInstance

public static MessageDigest getInstance(String)
                                 throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

getInstance

public static MessageDigest getInstance(String,
                                        String)
                                 throws NoSuchAlgorithmException,
                                        NoSuchProviderException

Throws:

NoSuchAlgorithmException

NoSuchProviderException

getInstance

public static MessageDigest getInstance(String,
                                        Provider)
                                 throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException