Package io.getlime.security.powerauth.crypto.lib.util

Class AESEncryptionUtils

java.lang.Object

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

public class AESEncryptionUtils
extends Object

A utility class for AES encryption.

Author:

Petr Dvorak

Constructor Summary

Constructors

Constructor	Description
AESEncryptionUtils()

Method Summary

Modifier and Type	Method	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 transformation)	Decrypt given data using given transformation 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 transformation)	Encrypt given data using given transformation 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 Details

AESEncryptionUtils

public AESEncryptionUtils()

Method Details

encrypt

public byte[] encrypt(byte[] bytes,
 byte[] iv,
 SecretKey secret,
 String transformation)
               throws InvalidKeyException,
GenericCryptoException,
CryptoProviderException

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

Parameters:

bytes - Bytes to be encrypted.

iv - Initialization vector.

secret - Secret signature key.

transformation - Cipher transformation to be used, for example "AES/CBC/PKCS7Padding".

Returns:

Encrypted bytes.

Throws:

InvalidKeyException - In case an invalid key is provided.

GenericCryptoException - In case encryption fails.

CryptoProviderException - In case cryptography provider is incorrectly initialized.

encrypt

public byte[] encrypt(byte[] bytes,
 byte[] iv,
 SecretKey secret)
               throws InvalidKeyException,
GenericCryptoException,
CryptoProviderException

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.

GenericCryptoException - In case encryption fails.

CryptoProviderException - In case cryptography provider is incorrectly initialized.

decrypt

public byte[] decrypt(byte[] bytes,
 byte[] iv,
 SecretKey secret,
 String transformation)
               throws InvalidKeyException,
GenericCryptoException,
CryptoProviderException

Decrypt given data using given transformation with given initialization vector and secret key.

Parameters:

bytes - Encrypted bytes to be decrypted.

iv - Initialization vector.

secret - Secret signature key.

transformation - Cipher transformation to be used, for example "AES/CBC/PKCS7Padding".

Returns:

Original decrypted bytes.

Throws:

InvalidKeyException - In case an invalid key is provided.

GenericCryptoException - In case decryption fails.

CryptoProviderException - In case cryptography provider is incorrectly initialized.

decrypt

public byte[] decrypt(byte[] bytes,
 byte[] iv,
 SecretKey secret)
               throws InvalidKeyException,
GenericCryptoException,
CryptoProviderException

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.

GenericCryptoException - In case decryption fails.

CryptoProviderException - In case cryptography provider is incorrectly initialized.