org.snmp4j.security

Class PrivacyGeneric

java.lang.Object

org.snmp4j.security.PrivacyGeneric

All Implemented Interfaces:

Serializable, PrivacyProtocol, SecurityProtocol

Direct Known Subclasses:

Priv3DES, PrivAES, PrivDES

public abstract class PrivacyGeneric
extends Object
implements PrivacyProtocol

The PrivacyGeneric abstract class implements common functionality of privacy protocols.

Since:

2.5.0

Author:

Frank Fock

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected CipherPool	cipherPool
protected int	initVectorLength
protected int	keyBytes
protected String	protocolClass
protected String	protocolId
protected org.snmp4j.security.Salt	salt

Constructor Summary

Constructors

Constructor and Description
PrivacyGeneric()

Method Summary

Modifier and Type	Method and Description
protected byte[]	doDecrypt(byte[] cryptedData, int offset, int length, byte[] decryptionKey, byte[] iv)
protected byte[]	doFinal(byte[] unencryptedData, int offset, int length, Cipher alg)
protected byte[]	doFinalWithPadding(byte[] unencryptedData, int offset, int length, Cipher alg)
protected Cipher	doInit(byte[] encryptionKey, byte[] initVect)
boolean	isSupported() Checks whether this security protocol is actually supported by this Java runtime environment.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.snmp4j.security.PrivacyProtocol

decrypt, encrypt, extendShortKey, getDecryptParamsLength, getEncryptedLength, getID, getMaxKeyLength, getMinKeyLength

Field Detail

protocolId

protected String protocolId

protocolClass

protected String protocolClass

keyBytes

protected int keyBytes

salt

protected org.snmp4j.security.Salt salt

cipherPool

protected CipherPool cipherPool

initVectorLength

protected int initVectorLength

Constructor Detail

PrivacyGeneric

public PrivacyGeneric()

Method Detail

doInit

protected Cipher doInit(byte[] encryptionKey,
                        byte[] initVect)
                 throws NoSuchPaddingException,
                        NoSuchAlgorithmException,
                        InvalidKeyException,
                        InvalidAlgorithmParameterException

Throws:

NoSuchPaddingException

NoSuchAlgorithmException

InvalidKeyException

InvalidAlgorithmParameterException

doFinal

protected byte[] doFinal(byte[] unencryptedData,
                         int offset,
                         int length,
                         Cipher alg)
                  throws BadPaddingException,
                         IllegalBlockSizeException,
                         ShortBufferException

Throws:

BadPaddingException

IllegalBlockSizeException

ShortBufferException

doFinalWithPadding

protected byte[] doFinalWithPadding(byte[] unencryptedData,
                                    int offset,
                                    int length,
                                    Cipher alg)
                             throws IllegalBlockSizeException,
                                    BadPaddingException,
                                    ShortBufferException

Throws:

IllegalBlockSizeException

BadPaddingException

ShortBufferException

doDecrypt

protected byte[] doDecrypt(byte[] cryptedData,
                           int offset,
                           int length,
                           byte[] decryptionKey,
                           byte[] iv)

isSupported

public boolean isSupported()

Description copied from interface: SecurityProtocol

Checks whether this security protocol is actually supported by this Java runtime environment.

Specified by:

isSupported in interface SecurityProtocol

Returns:

true if this security protocol is supported, false otherwise.