Package rocks.xmpp.core.sasl.scram

Class ScramBase

java.lang.Object

rocks.xmpp.core.sasl.scram.ScramBase

Direct Known Subclasses:

ScramClient

public abstract class ScramBase
extends Object

A base SCRAM implementation.

Method Summary

Modifier and Type	Method	Description
byte[]	computeClientKey(byte[] saltedPassword)	Computes the client key.
byte[]	computeSaltedPassword(char[] password, byte[] salt, int iterationCount)	Computes the salted password.
byte[]	computeServerKey(byte[] saltedPassword)	Computes the server key.
byte[]	computeStoredKey(byte[] clientKey)	Computes the stored key.
void	dispose()
String	getMechanismName()	Gets the mechanism name, i.e "SCRAM-" + the hash algorithm name.
Object	getNegotiatedProperty(String propName)
boolean	isComplete()
String	toString()
byte[]	unwrap(byte[] incoming, int offset, int len)
byte[]	wrap(byte[] outgoing, int offset, int len)

Methods inherited from class java.lang.Object

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

Method Detail

computeSaltedPassword

public final byte[] computeSaltedPassword(char[] password,
                                          byte[] salt,
                                          int iterationCount)
                                   throws InvalidKeyException,
                                          NoSuchAlgorithmException

Computes the salted password.

Parameters:

password - The password.

salt - The salt.

iterationCount - The iteration count.

Returns:

The salted password.

Throws:

InvalidKeyException - If the key is invalid.

NoSuchAlgorithmException - If the hash algorithm does not exist.

computeClientKey

public final byte[] computeClientKey(byte[] saltedPassword)
                              throws InvalidKeyException,
                                     NoSuchAlgorithmException

Computes the client key.

Parameters:

saltedPassword - The salted password.

Returns:

The client key.

Throws:

InvalidKeyException - If the key is invalid.

NoSuchAlgorithmException - If the mac algorithm does not exist.

computeStoredKey

public final byte[] computeStoredKey(byte[] clientKey)
                              throws NoSuchAlgorithmException

Computes the stored key.

Parameters:

clientKey - The client key.

Returns:

The stored key.

Throws:

NoSuchAlgorithmException - If the hash algorithm does not exist.

computeServerKey

public final byte[] computeServerKey(byte[] saltedPassword)
                              throws InvalidKeyException,
                                     NoSuchAlgorithmException

Computes the server key.

Parameters:

saltedPassword - The salted password.

Returns:

The stored key.

Throws:

InvalidKeyException - If the provided password is invalid.

NoSuchAlgorithmException - If the hash algorithm does not exist.

getMechanismName

public final String getMechanismName()

Gets the mechanism name, i.e "SCRAM-" + the hash algorithm name.

Returns:

The mechanism name.

isComplete

public final boolean isComplete()

unwrap

public final byte[] unwrap(byte[] incoming,
                           int offset,
                           int len)
                    throws SaslException

Throws:

SaslException

wrap

public final byte[] wrap(byte[] outgoing,
                         int offset,
                         int len)
                  throws SaslException

Throws:

SaslException

getNegotiatedProperty

public final Object getNegotiatedProperty(String propName)

dispose

public final void dispose()

toString

public final String toString()

Overrides:

toString in class Object