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 encrypts the given message with the DES algorithm in CBC mode using a secret key which is derived from a password with the MD5 message digest algorithm. PKCS#5 recommends, that the password should consist of printable ASCII characters.

This class uses UTF8 for encoding the password. For password consisting of ASCII characters only this will give the default ASCII encoding.

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

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

Version:

File Revision 16

See Also:

Serialized Form

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(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.
void	setAlgorithm(java.lang.String algorithm) Sets the algorithm name.

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

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 representing an UTF8 encoding of the password

getKey

public char[] getKey()

Returns the password as char array.

Returns:

the password as char array

setAlgorithm

public void setAlgorithm(java.lang.String algorithm)

Sets the algorithm name.

Parameters:

algorithm - the algorithm name

getAlgorithm

public java.lang.String getAlgorithm()

Returns the algorithm name.

Specified by:

getAlgorithm in interface java.security.Key

Returns:

the algorithm name

getFormat

public java.lang.String getFormat()

Returns the format name.

Specified by:

getFormat in interface java.security.Key

Returns:

"RAW"