com.sshtools.ssh.components.jce

Class AbstractDigest

java.lang.Object

com.sshtools.ssh.components.jce.AbstractDigest

All Implemented Interfaces:

Digest

Direct Known Subclasses:

MD5Digest, SHA1Digest, SHA256Digest

public class AbstractDigest
extends Object
implements Digest

An abstract class that implements the Digest interface to provide support for JCE based digests.

Author:

Lee David Painter

Constructor Summary

Constructors

Constructor and Description
AbstractDigest(String jceAlgorithm)

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	doFinal() Do the final processing and return the hash.
String	getProvider()
void	putBigInteger(BigInteger bi) Update the digest with a BigInteger value.
void	putByte(byte b) Put a single byte into the digest.
void	putBytes(byte[] data) Put a byte array into the digest.
void	putBytes(byte[] data, int offset, int len) Put a byte array into the digest
void	putInt(int i) Put an integer into the digest.
void	putString(String str) Put a String into the digest.
void	reset() Reset the underlying digest.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDigest

public AbstractDigest(String jceAlgorithm)
               throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

Method Detail

doFinal

public byte[] doFinal()

Description copied from interface: Digest

Do the final processing and return the hash.

Specified by:

doFinal in interface Digest

Returns:

the hash

putBigInteger

public void putBigInteger(BigInteger bi)

Description copied from interface: Digest

Update the digest with a BigInteger value. This puts both the integer length of the BigInteger data and the binary data.

Specified by:

putBigInteger in interface Digest

putByte

public void putByte(byte b)

Description copied from interface: Digest

Put a single byte into the digest.

Specified by:

putByte in interface Digest

putBytes

public void putBytes(byte[] data)

Description copied from interface: Digest

Put a byte array into the digest.

Specified by:

putBytes in interface Digest

putBytes

public void putBytes(byte[] data,
            int offset,
            int len)

Description copied from interface: Digest

Put a byte array into the digest

Specified by:

putBytes in interface Digest

putInt

public void putInt(int i)

Description copied from interface: Digest

Put an integer into the digest.

Specified by:

putInt in interface Digest

putString

public void putString(String str)

Description copied from interface: Digest

Put a String into the digest.

Specified by:

putString in interface Digest

reset

public void reset()

Description copied from interface: Digest

Reset the underlying digest.

Specified by:

reset in interface Digest

getProvider

public String getProvider()