org.bouncycastle.jcajce.PBKDF2Key Maven / Gradle / Ivy
package org.bouncycastle.jcajce;
import org.bouncycastle.crypto.CharToByteConverter;
import org.bouncycastle.util.Arrays;
/**
* A password based key for use with PBKDF2 as defined in PKCS#5.
*/
public class PBKDF2Key
implements PBKDFKey
{
private final char[] password;
private final CharToByteConverter converter;
/**
* Basic constructor for a password based key using PBKDF - secret key generation parameters will be passed separately..
*
* @param password password to use.
*/
public PBKDF2Key(char[] password, CharToByteConverter converter)
{
this.password = Arrays.clone(password);
this.converter = converter;
}
/**
* Return a reference to the char[] array holding the password.
*
* @return a reference to the password array.
*/
public char[] getPassword()
{
return password;
}
/**
* Return the password based key derivation function this key is for,
*
* @return the string "PBKDF2"
*/
public String getAlgorithm()
{
return "PBKDF2";
}
/**
* Return the format encoding.
*
* @return the type name representing a char[] to byte[] conversion.
*/
public String getFormat()
{
return converter.getType();
}
/**
* Return the password converted to bytes.
*
* @return the password converted to a byte array.
*/
public byte[] getEncoded()
{
return converter.convert(password);
}
}