org.openeuler.com.sun.crypto.provider

类 PBKDF2KeyImpl

java.lang.Object

org.openeuler.com.sun.crypto.provider.PBKDF2KeyImpl

所有已实现的接口:

Serializable, Key, PBEKey, SecretKey, Destroyable

final class PBKDF2KeyImpl
extends Object
implements PBEKey

This class represents a PBE key derived using PBKDF2 defined in PKCS#5 v2.0. meaning that 1) the password must consist of characters which will be converted to bytes using UTF-8 character encoding. 2) salt, iteration count, and to be derived key length are supplied

字段概要

字段

限定符和类型	字段和说明
private int	iterCount
private byte[]	key
private char[]	passwd
private Mac	prf
private byte[]	salt
private static long	serialVersionUID

构造器概要

构造器

构造器和说明
PBKDF2KeyImpl(PBEKeySpec keySpec, String prfAlgo) Creates a PBE key from a given PBE key specification.

方法概要

限定符和类型	方法和说明
private static byte[]	deriveKey(Mac prf, byte[] password, byte[] salt, int iterCount, int keyLengthInBit)
boolean	equals(Object obj)
protected void	finalize() Ensures that the password bytes of this key are erased when there are no more references to it.
String	getAlgorithm()
byte[]	getEncoded()
String	getFormat()
int	getIterationCount()
char[]	getPassword()
private static byte[]	getPasswordBytes(char[] passwd)
byte[]	getSalt()
int	hashCode() Calculates a hash code value for the object.
private void	readObject(ObjectInputStream stream) Restores the state of this object from the stream.
private Object	writeReplace() Replace the PBE key to be serialized.

从类继承的方法 java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 javax.security.auth.Destroyable

destroy, isDestroyed

字段详细资料

serialVersionUID

private static final long serialVersionUID

另请参阅:

常量字段值

passwd

private char[] passwd

salt

private final byte[] salt

iterCount

private final int iterCount

key

private byte[] key

prf

private final Mac prf

构造器详细资料

PBKDF2KeyImpl

PBKDF2KeyImpl(PBEKeySpec keySpec,
              String prfAlgo)
       throws InvalidKeySpecException

Creates a PBE key from a given PBE key specification.

参数:

key - the given PBE key specification

抛出:

InvalidKeySpecException

方法详细资料

getPasswordBytes

private static byte[] getPasswordBytes(char[] passwd)

deriveKey

private static byte[] deriveKey(Mac prf,
                                byte[] password,
                                byte[] salt,
                                int iterCount,
                                int keyLengthInBit)

getEncoded

public byte[] getEncoded()

指定者:

getEncoded 在接口中 Key

getAlgorithm

public String getAlgorithm()

指定者:

getAlgorithm 在接口中 Key

getIterationCount

public int getIterationCount()

指定者:

getIterationCount 在接口中 PBEKey

getPassword

public char[] getPassword()

指定者:

getPassword 在接口中 PBEKey

getSalt

public byte[] getSalt()

指定者:

getSalt 在接口中 PBEKey

getFormat

public String getFormat()

指定者:

getFormat 在接口中 Key

hashCode

public int hashCode()

Calculates a hash code value for the object. Objects that are equal will also have the same hashcode.

覆盖:

hashCode 在类中 Object

equals

public boolean equals(Object obj)

覆盖:

equals 在类中 Object

writeReplace

private Object writeReplace()
                     throws ObjectStreamException

Replace the PBE key to be serialized.

返回:

the standard KeyRep object to be serialized

抛出:

ObjectStreamException - if a new object representing this PBE key could not be created

finalize

protected void finalize()
                 throws Throwable

Ensures that the password bytes of this key are erased when there are no more references to it.

覆盖:

finalize 在类中 Object

抛出:

Throwable

readObject

private void readObject(ObjectInputStream stream)
                 throws IOException,
                        ClassNotFoundException

Restores the state of this object from the stream.

Deserialization of this class is not supported.

参数:

stream - the ObjectInputStream from which data is read

抛出:

IOException - if an I/O error occurs

ClassNotFoundException - if a serialized class cannot be loaded