iaik.security.cipher

Class PBEKey

java.lang.Object

iaik.security.cipher.PBEKey

All Implemented Interfaces:

java.io.Serializable, java.security.Key, javax.crypto.SecretKey

public class PBEKey
extends java.lang.Object
implements javax.crypto.SecretKey

A secret key for PBE (Password Based Encryption).

Password based encryption as defined in PKCS #5: Password-Based Cryptography Specification Version 2.0 (RFC 2898) encrypts the given message with the DES algorithm in CBC mode using a secret key which is derived from a password with the MD2 or MD5 message digest algorithm. PKCS#5 recommends, that the password should consist of printable ASCII characters.

This class returns the password as a byte array of the default ASCII encoding.

E.g.: "Beavis" gives the following string of 6 bytes:

0x42 0x65 0x61 0x76 0x69 0x73

You can also use the "PKCS#5" SecretKeyFactory for converting a password to a PBEKeyBMP.

See Also:

SecretKey, SecretKey, PBEKeyBMP, PbeWithMD5AndDES_CBC, Serialized Form

Field Summary

Fields inherited from interface javax.crypto.SecretKey

serialVersionUID

Constructor Summary

Constructors

Constructor and Description
PBEKey(char[] password) Creates a new PBEKey from a char array.
PBEKey(javax.crypto.spec.PBEKeySpec keySpec) Creates a new PBEKey from a PBEKeySpec.
PBEKey(SecureStringBuffer password)
PBEKey(java.lang.String password) Creates a new PBEKey from a String.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getAlgorithm() Returns the algorithm name.
byte[]	getEncoded() Returns the password as byte array.
java.lang.String	getFormat() Returns the format name.
char[]	getKey() Returns the password as char array.

Methods inherited from class java.lang.Object

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

Constructor Detail

PBEKey

public PBEKey(java.lang.String password)

Creates a new PBEKey from a String.

Parameters:

password - the password as a String

PBEKey

public PBEKey(javax.crypto.spec.PBEKeySpec keySpec)

Creates a new PBEKey from a PBEKeySpec.

Parameters:

keySpec - the password as KeySpec

PBEKey

public PBEKey(char[] password)

Creates a new PBEKey from a char array.

Parameters:

password - the password as a char array

PBEKey

public PBEKey(SecureStringBuffer password)

Method Detail

getEncoded

public byte[] getEncoded()

Returns the password as byte array.

Specified by:

getEncoded in interface java.security.Key

Returns:

the password as byte array

getKey

public char[] getKey()

Returns the password as char array.

Returns:

the password as char array

getAlgorithm

public java.lang.String getAlgorithm()

Returns the algorithm name.

Specified by:

getAlgorithm in interface java.security.Key

Returns:

"PBE"

getFormat

public java.lang.String getFormat()

Returns the format name.

Specified by:

getFormat in interface java.security.Key

Returns:

"RAW"