Package org.sentrysoftware.ipmi.core.coding.security

Class ConfidentialityAlgorithm

java.lang.Object

org.sentrysoftware.ipmi.core.coding.security.ConfidentialityAlgorithm

Direct Known Subclasses:

ConfidentialityAesCbc128, ConfidentialityNone

public abstract class ConfidentialityAlgorithm
extends Object

Interface for Confidentiality Algorithms. All classes extending this one must implement constructor(byte[]).

Constructor Summary

Constructors

Constructor	Description
ConfidentialityAlgorithm()

Method Summary

Modifier and Type	Method	Description
abstract byte[]	decrypt(byte[] data)	Decrypts the data.
abstract byte[]	encrypt(byte[] data)	Encrypts the data.
abstract byte	getCode()	Returns the algorithm's ID.
abstract int	getConfidentialityOverheadSize(int payloadSize)	Calculates size of the confidentiality header and trailer specific for the algorithm.
void	initialize(byte[] sik)	Initializes Confidentiality Algorithm

Methods inherited from class java.lang.Object

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

Constructor Details

ConfidentialityAlgorithm

public ConfidentialityAlgorithm()

Method Details

initialize

public void initialize(byte[] sik)
                throws InvalidKeyException,
NoSuchAlgorithmException,
NoSuchPaddingException

Initializes Confidentiality Algorithm

Parameters:

sik - - Session Integrity Key calculated during the opening of the session or user password if 'one-key' logins are enabled.

Throws:

InvalidKeyException - - when initiation of the algorithm fails

NoSuchAlgorithmException - - when initiation of the algorithm fails

NoSuchPaddingException - - when initiation of the algorithm fails

getCode

public abstract byte getCode()

Returns the algorithm's ID.

encrypt

public abstract byte[] encrypt(byte[] data)
                        throws InvalidKeyException

Encrypts the data.

Parameters:

data - - payload to be encrypted

Returns:

encrypted data encapsulated in COnfidentiality Header and Trailer.

Throws:

InvalidKeyException - - when initiation of the algorithm fails

decrypt

public abstract byte[] decrypt(byte[] data)

Decrypts the data.

Parameters:

data - - encrypted data encapsulated in COnfidentiality Header and Trailer.

Returns:

decrypted data.

Throws:

IllegalArgumentException - - when initiation of the algorithm fails

getConfidentialityOverheadSize

public abstract int getConfidentialityOverheadSize(int payloadSize)

Calculates size of the confidentiality header and trailer specific for the algorithm.

Parameters:

payloadSize - - size of the data that will be encrypted