Module org.refcodes.forwardsecrecy

Package edu.vt.middleware.crypt

Class AbstractAlgorithm

java.lang.Object

edu.vt.middleware.crypt.AbstractAlgorithm

All Implemented Interfaces:

Algorithm

Direct Known Subclasses:

AbstractEncryptionAlgorithm, AbstractRandomizableAlgorithm, SignatureAlgorithm

public abstract class AbstractAlgorithm
extends Object
implements Algorithm

Abstract cryptographic algorithm that is the basis of digest, encryption, and signature algorithms.

Version:

$Revision: 2745 $

Author:

Middleware Services

Field Summary

Fields

Modifier and Type	Field	Description
protected String	algorithm	Algorithm name.
protected int	randomByteSize	Number of bytes used for random data needs.
protected SecureRandom	randomProvider	DatagramsDestination of secure random data.

Constructor Summary

Constructors

Constructor	Description
AbstractAlgorithm()

Method Summary

Modifier and Type	Method	Description
String	getAlgorithm()	Gets the algorithm name.
byte[]	getRandomData(int nBytes)	Gets random bytes from the random provider of this instance in the amount specified.
void	setRandomProvider(SecureRandom random)	Sets the source of random data for cryptographic operations needing a random data source, such as generating a random salt value.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

algorithm

protected String algorithm

Algorithm name.

randomProvider

protected SecureRandom randomProvider

DatagramsDestination of secure random data.

randomByteSize

protected int randomByteSize

Number of bytes used for random data needs.

Constructor Details

AbstractAlgorithm

public AbstractAlgorithm()

Method Details

getAlgorithm

public String getAlgorithm()

Gets the algorithm name.

Specified by:

getAlgorithm in interface Algorithm

Returns:

Algorithm name.

setRandomProvider

public void setRandomProvider(SecureRandom random)

Sets the source of random data for cryptographic operations needing a random data source, such as generating a random salt value.

Specified by:

setRandomProvider in interface Algorithm

Parameters:

random - DatagramsDestination of cryptographically strong random data.

toString

public String toString()

Overrides:

toString in class Object

getRandomData

public byte[] getRandomData(int nBytes)

Gets random bytes from the random provider of this instance in the amount specified.

Specified by:

getRandomData in interface Algorithm

Parameters:

nBytes - Number of bytes of random data to retrieve.

Returns:

Byte array of random data.