iaik.security.cipher
Class PBEKeyBMP

java.lang.Object
  |
  +--iaik.security.cipher.PBEKeyBMP

All Implemented Interfaces:

Key, SecretKey, Serializable

public class PBEKeyBMP

extends Object

implements SecretKey

A secret key for PBE (Password Based Encryption).

PKCS#12 breaks with the recommendation of PKCS#5 suggesting passwords to consist of printable ASCII characters. PKCS #12 creates passwords from BMPStrings with a NULL terminator by encoding every character of the original BMPString in 2 bytes in big-endian format (most-significant byte first).

This class returns the password as a byte array of the default ASCII encoding. But in contrast to PBEKey here the password is created from a BMPstring with a NULL terminator.

E.g.: User-password "Beavis" would lead to the following string of 14 bytes:

0x00 0x42 0x00 0x65 0x00 0x61 0x00 0x76 0x00 0x69 0x00 0x73 0x00 0x00

Version:

File Revision 18

See Also:

Serialized Form

Fields inherited from interface java.security.Key

serialVersionUID

Constructor Summary

PBEKeyBMP(char[] password)
Creates a new PBEKeyBMP from a char array.

PBEKeyBMP(PBEKeySpec keySpec)
Creates a new PBEKey from a PBEKeySpec.

PBEKeyBMP(String password)
Creates a new PBEKeyBMP from a String.

Method Summary

String	getAlgorithm() Returns the algorithm name.
byte[]	getEncoded() Returns the password as byte array.
static byte[]	getEncoded(char[] password) Converts the ASCII passwort to a 2 bytes big-endian format BMPString.
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

PBEKeyBMP

public PBEKeyBMP(String password)

Creates a new PBEKeyBMP from a String.

Parameters:

password - the password as a string

PBEKeyBMP

public PBEKeyBMP(char[] password)

Creates a new PBEKeyBMP from a char array.

Parameters:

password - the password as a char array

PBEKeyBMP

public PBEKeyBMP(PBEKeySpec keySpec)

Creates a new PBEKey from a PBEKeySpec.

Parameters:

keySpec - the password as KeySpec

Method Detail

getEncoded

public final byte[] getEncoded()

Returns the password as byte array.

Specified by:

getEncoded in interface Key

Returns:

the password as byte array

getEncoded

public static final byte[] getEncoded(char[] password)

Converts the ASCII passwort to a 2 bytes big-endian format BMPString.

Returns:

the password as byte array

getKey

public char[] getKey()

Returns the password as char array.

Returns:

the password as char array

getAlgorithm

public String getAlgorithm()

Returns the algorithm name.

Specified by:

getAlgorithm in interface Key

Returns:

"PBE"

getFormat

public String getFormat()

Returns the format name.

Specified by:

getFormat in interface Key

Returns:

"RAW_BMP"