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

Class AuthenticationRakpHmacSha1

java.lang.Object

org.sentrysoftware.ipmi.core.coding.security.AuthenticationAlgorithm

org.sentrysoftware.ipmi.core.coding.security.AuthenticationRakpHmacSha1

public class AuthenticationRakpHmacSha1
extends AuthenticationAlgorithm

RAKP-HMAC-SHA1 authentication algorithm.

Constructor Summary

Constructors

Constructor	Description
AuthenticationRakpHmacSha1()	Initiates RAKP-HMAC-SHA1 authentication algorithm.

Method Summary

Modifier and Type	Method	Description
boolean	checkKeyExchangeAuthenticationCode(byte[] data, byte[] key, String password)	Checks value of the Key Exchange Authentication Code in RAKP messages
boolean	doIntegrityCheck(byte[] data, byte[] reference, byte[] sik)	Validates Integrity Check Value in RAKP Message 4.
byte	getCode()
int	getIntegrityCheckBaseLength()
byte[]	getKeyExchangeAuthenticationCode(byte[] data, String password)	Calculates value of the Key Exchange Authentication Code in RAKP messages
int	getKeyLength()

Methods inherited from class java.lang.Object

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

Constructor Details

AuthenticationRakpHmacSha1

public AuthenticationRakpHmacSha1()
                           throws NoSuchAlgorithmException

Initiates RAKP-HMAC-SHA1 authentication algorithm.

Throws:

NoSuchAlgorithmException - - when initiation of the algorithm fails

Method Details

getCode

public byte getCode()

Specified by:

getCode in class AuthenticationAlgorithm

Returns:

algorithm-specific code

checkKeyExchangeAuthenticationCode

public boolean checkKeyExchangeAuthenticationCode(byte[] data,
 byte[] key,
 String password)
                                           throws NoSuchAlgorithmException,
InvalidKeyException

Description copied from class: AuthenticationAlgorithm

Checks value of the Key Exchange Authentication Code in RAKP messages

Specified by:

checkKeyExchangeAuthenticationCode in class AuthenticationAlgorithm

Parameters:

data - - The base for authentication algorithm. Depends on RAKP Message.

key - - the Key Exchange Authentication Code to check.

password - - password of the user establishing a session

Returns:

True if authentication check was successful, false otherwise.

Throws:

NoSuchAlgorithmException - when initiation of the algorithm fails

InvalidKeyException - when creating of the algorithm key failsS

getKeyExchangeAuthenticationCode

public byte[] getKeyExchangeAuthenticationCode(byte[] data,
 String password)
                                        throws NoSuchAlgorithmException,
InvalidKeyException

Description copied from class: AuthenticationAlgorithm

Calculates value of the Key Exchange Authentication Code in RAKP messages

Specified by:

getKeyExchangeAuthenticationCode in class AuthenticationAlgorithm

Parameters:

data - - The base for authentication algorithm. Depends on RAKP Message.

password - - password of the user establishing a session

Throws:

NoSuchAlgorithmException - when initiation of the algorithm fails

InvalidKeyException - when creating of the algorithm key fails

doIntegrityCheck

public boolean doIntegrityCheck(byte[] data,
 byte[] reference,
 byte[] sik)
                         throws InvalidKeyException,
NoSuchAlgorithmException

Description copied from class: AuthenticationAlgorithm

Validates Integrity Check Value in RAKP Message 4.

Specified by:

doIntegrityCheck in class AuthenticationAlgorithm

Parameters:

data - - The base for authentication algorithm.

reference - - The Integrity Check Value to validate.

sik - - The Session Integrity Key generated on base of RAKP Messages 1 and 2.

Returns:

True if integrity check was successful, false otherwise.

Throws:

InvalidKeyException - when creating of the algorithm key fails

NoSuchAlgorithmException - when initiation of the algorithm fails

See Also:

• Rakp1.calculateSik(org.sentrysoftware.ipmi.core.coding.commands.session.Rakp1ResponseData)

getKeyLength

public int getKeyLength()

Specified by:

getKeyLength in class AuthenticationAlgorithm

Returns:

length of the key for the RAKP2 message

getIntegrityCheckBaseLength

public int getIntegrityCheckBaseLength()

Specified by:

getIntegrityCheckBaseLength in class AuthenticationAlgorithm

Returns:

length of the integrity check base for RAKP4 message