com.iotize.android.device.device.impl.scram

Class ScramAuth

java.lang.Object

com.iotize.android.device.device.impl.scram.ScramAuth

public class ScramAuth
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ScramAuth.Credentials
static interface	ScramAuth.NonceGenerator
static class	ScramAuth.RandomNonceGenerator
class	ScramAuth.SessionData

Field Summary

Fields

Modifier and Type	Field and Description
static int	CLIENT_NONCE_SIZE
static int	CRC_LENGTH
static int	ITERATION_NUMBER_SIZE
ScramAuth.NonceGenerator	nonceGenerator
static int	PASSWORD_LENGTH
static int	SERVER_NONCE_SIZE
ScramAuth.SessionData	sessionData

Constructor Summary

Constructors

Constructor and Description
ScramAuth(IoTizeDevice device)

Method Summary

Modifier and Type	Method and Description
static byte[]	clientProof(byte[] storedKey, int clientNonce, int serverNonce)
static com.iotize.android.device.device.impl.scram.ScramAuth.Keys	computeKeys(ScramAuth.Credentials credentials, ScramLoginResponseBody loginBody, int clientNonce)
static byte[]	computeProof(byte[] key, int nonce1, int nonce2)
static byte[]	computeSessionKey(int clientNonce, int serverNonce, byte[] userSalt, byte[] serverKey, byte[] storedKey)
int	generateNonce()
byte[]	getSessionKey()
static byte[]	HASH(byte[] input, byte[] salt, int iteration)
void	login(ScramAuth.Credentials params) Perform login
void	logout()
static byte[]	serverProof(byte[] serverKey, int clientNonce, int serverNonce)

Methods inherited from class java.lang.Object

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

Field Detail

CRC_LENGTH

public static final int CRC_LENGTH

See Also:

Constant Field Values

CLIENT_NONCE_SIZE

public static final int CLIENT_NONCE_SIZE

See Also:

Constant Field Values

SERVER_NONCE_SIZE

public static final int SERVER_NONCE_SIZE

See Also:

Constant Field Values

PASSWORD_LENGTH

public static final int PASSWORD_LENGTH

See Also:

Constant Field Values

ITERATION_NUMBER_SIZE

public static final int ITERATION_NUMBER_SIZE

See Also:

Constant Field Values

sessionData

public ScramAuth.SessionData sessionData

nonceGenerator

public ScramAuth.NonceGenerator nonceGenerator

Constructor Detail

ScramAuth

public ScramAuth(IoTizeDevice device)

Method Detail

login

public void login(ScramAuth.Credentials params)
           throws java.lang.Exception

Perform login

Parameters:

params -

Throws:

java.lang.Error - if scram is not activated

java.lang.Exception

logout

public void logout()
            throws java.lang.Exception

Throws:

java.lang.Exception

computeKeys

public static com.iotize.android.device.device.impl.scram.ScramAuth.Keys computeKeys(ScramAuth.Credentials credentials,
                                                                                     ScramLoginResponseBody loginBody,
                                                                                     int clientNonce)

clientProof

public static byte[] clientProof(byte[] storedKey,
                                 int clientNonce,
                                 int serverNonce)

serverProof

public static byte[] serverProof(byte[] serverKey,
                                 int clientNonce,
                                 int serverNonce)

getSessionKey

public byte[] getSessionKey()

generateNonce

public int generateNonce()

HASH

public static byte[] HASH(byte[] input,
                          byte[] salt,
                          int iteration)

Parameters:

input -

computeProof

public static byte[] computeProof(byte[] key,
                                  int nonce1,
                                  int nonce2)

computeSessionKey

public static byte[] computeSessionKey(int clientNonce,
                                       int serverNonce,
                                       byte[] userSalt,
                                       byte[] serverKey,
                                       byte[] storedKey)