Package fr.dyade.aaa.common.crypto

Class CryptoTool

java.lang.Object

fr.dyade.aaa.common.crypto.CryptoTool

All Implemented Interfaces:

Crypto

Direct Known Subclasses:

AESGCMTools, AESTool

public abstract class CryptoTool
extends Object
implements Crypto

Field Summary

Fields

Modifier and Type	Field	Description
protected SecretKey	key

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CryptoTool(String password, String salt, int iterationCount, int keyLength)	Derive the key from given password and salt.

Method Summary

Modifier and Type	Method	Description
byte[]	decrypt(byte[] cipherText)
byte[]	decrypt(byte[] cipherText, byte[] nonce)
byte[]	decrypt(byte[] cipherText, int offset, int length)
byte[]	decrypt(byte[] cipherText, int offset, int length, byte[] nonce)
byte[]	encrypt(byte[] clearText)
byte[]	encrypt(byte[] clearText, byte[] nonce)
byte[]	encrypt(byte[] clearText, int offset, int length)
byte[]	encrypt(byte[] clearText, int offset, int length, byte[] nonce)
(package private) abstract Cipher	getCipher(int mode)
(package private) abstract Cipher	getCipher(int mode, byte[] nonce)

Methods inherited from class java.lang.Object

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

Field Detail

key

protected SecretKey key

Constructor Detail

CryptoTool

protected CryptoTool(String password,
                     String salt,
                     int iterationCount,
                     int keyLength)
              throws NoSuchAlgorithmException,
                     InvalidKeySpecException

Derive the key from given password and salt.

Parameters:

password -

salt -

iterationCount -

keyLength -

Throws:

NoSuchAlgorithmException

InvalidKeySpecException

Method Detail

getCipher

abstract Cipher getCipher(int mode)
                   throws GeneralSecurityException

Throws:

GeneralSecurityException

getCipher

abstract Cipher getCipher(int mode,
                          byte[] nonce)
                   throws GeneralSecurityException

Throws:

GeneralSecurityException

encrypt

public byte[] encrypt(byte[] clearText)
               throws GeneralSecurityException

Specified by:

encrypt in interface Crypto

Throws:

GeneralSecurityException

encrypt

public byte[] encrypt(byte[] clearText,
                      int offset,
                      int length)
               throws GeneralSecurityException

Specified by:

encrypt in interface Crypto

Throws:

GeneralSecurityException

encrypt

public byte[] encrypt(byte[] clearText,
                      byte[] nonce)
               throws GeneralSecurityException

Specified by:

encrypt in interface Crypto

Throws:

GeneralSecurityException

encrypt

public byte[] encrypt(byte[] clearText,
                      int offset,
                      int length,
                      byte[] nonce)
               throws GeneralSecurityException

Specified by:

encrypt in interface Crypto

Throws:

GeneralSecurityException

decrypt

public byte[] decrypt(byte[] cipherText)
               throws GeneralSecurityException

Specified by:

decrypt in interface Crypto

Throws:

GeneralSecurityException

decrypt

public byte[] decrypt(byte[] cipherText,
                      int offset,
                      int length)
               throws GeneralSecurityException

Specified by:

decrypt in interface Crypto

Throws:

GeneralSecurityException

decrypt

public byte[] decrypt(byte[] cipherText,
                      byte[] nonce)
               throws GeneralSecurityException

Specified by:

decrypt in interface Crypto

Throws:

GeneralSecurityException

decrypt

public byte[] decrypt(byte[] cipherText,
                      int offset,
                      int length,
                      byte[] nonce)
               throws GeneralSecurityException

Specified by:

decrypt in interface Crypto

Throws:

GeneralSecurityException