io.getlime.security.powerauth.lib.util

Class AESEncryptionUtils

java.lang.Object

io.getlime.security.powerauth.lib.util.AESEncryptionUtils

public class AESEncryptionUtils
extends Object

A utility class for AES encryption.

Author:

Petr Dvorak

Constructor Summary

Constructors

Constructor and Description
AESEncryptionUtils()

Method Summary

Modifier and Type	Method and Description
byte[]	decrypt(byte[] bytes, byte[] iv, SecretKey secret) Decrypt given data using AES/CBC/PKCS7Padding with given initialization vector and secret key.
byte[]	decrypt(byte[] bytes, byte[] iv, SecretKey secret, String padding) Decrypt given data using give padding with given initialization vector and secret key.
byte[]	encrypt(byte[] bytes, byte[] iv, SecretKey secret) Encrypt given data using AES/CBC/PKCS7Padding with given initialization vector and secret key.
byte[]	encrypt(byte[] bytes, byte[] iv, SecretKey secret, String padding) Encrypt given data using given padding with given initialization vector and secret key.

Methods inherited from class java.lang.Object

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

Constructor Detail

AESEncryptionUtils

public AESEncryptionUtils()

Method Detail

encrypt

public byte[] encrypt(byte[] bytes,
                      byte[] iv,
                      SecretKey secret,
                      String padding)
               throws InvalidKeyException,
                      IllegalBlockSizeException,
                      BadPaddingException

Encrypt given data using given padding with given initialization vector and secret key.

Parameters:

bytes - Bytes to be encrypted.

iv - Initialization vector.

secret - Secret signature key.

padding - Padding to be used, for example "AES/CBC/PKCS7Padding".

Returns:

Encrypted bytes.

Throws:

InvalidKeyException - In case an invalid key is provided.

IllegalBlockSizeException - In case invalid key size is provided.

BadPaddingException - In case invalid padding is provided.

encrypt

public byte[] encrypt(byte[] bytes,
                      byte[] iv,
                      SecretKey secret)
               throws InvalidKeyException,
                      IllegalBlockSizeException,
                      BadPaddingException

Encrypt given data using AES/CBC/PKCS7Padding with given initialization vector and secret key.

Parameters:

bytes - Bytes to be encrypted.

iv - Initialization vector.

secret - Secret signature key.

Returns:

Encrypted bytes.

Throws:

InvalidKeyException - In case an invalid key is provided.

IllegalBlockSizeException - In case invalid key size is provided.

BadPaddingException - In case invalid padding is provided.

decrypt

public byte[] decrypt(byte[] bytes,
                      byte[] iv,
                      SecretKey secret,
                      String padding)
               throws InvalidKeyException,
                      IllegalBlockSizeException,
                      BadPaddingException

Decrypt given data using give padding with given initialization vector and secret key.

Parameters:

bytes - Encrypted bytes to be decrypted.

iv - Initialization vector.

secret - Secret signature key.

padding - Padding to be used, for example "AES/CBC/PKCS7Padding".

Returns:

Original decrypted bytes.

Throws:

InvalidKeyException - In case an invalid key is provided.

IllegalBlockSizeException - In case invalid key size is provided.

BadPaddingException - In case invalid padding is provided.

decrypt

public byte[] decrypt(byte[] bytes,
                      byte[] iv,
                      SecretKey secret)
               throws InvalidKeyException,
                      IllegalBlockSizeException,
                      BadPaddingException

Decrypt given data using AES/CBC/PKCS7Padding with given initialization vector and secret key.

Parameters:

bytes - Encrypted bytes to be decrypted.

iv - Initialization vector.

secret - Secret signature key.

Returns:

Original decrypted bytes.

Throws:

InvalidKeyException - In case an invalid key is provided.

IllegalBlockSizeException - In case invalid key size is provided.

BadPaddingException - In case invalid padding is provided.