Package org.smallmind.nutsnbolts.security

Class EncryptionUtility

java.lang.Object

org.smallmind.nutsnbolts.security.EncryptionUtility

public class EncryptionUtility
extends Object

Constructor Summary

Constructors

Constructor	Description
EncryptionUtility()

Method Summary

Modifier and Type	Method	Description
static byte[]	decrypt(Key key, byte[] toBeDecrypted)
static byte[]	decrypt(Key key, byte[] toBeDecrypted, AlgorithmParameterSpec algorithmParameterSpec)
static byte[]	decrypt(Key key, String specificAlgorithm, byte[] toBeDecrypted)
static byte[]	decrypt(Key key, String specificAlgorithm, byte[] toBeDecrypted, AlgorithmParameterSpec algorithmParameterSpec)
static Key	deserializeKey(byte[] keyBytes)
static byte[]	encrypt(Key key, byte[] toBeEncrypted)
static byte[]	encrypt(Key key, byte[] toBeEncrypted, AlgorithmParameterSpec algorithmParameterSpec)
static byte[]	encrypt(Key key, String specificAlgorithm, byte[] toBeEncrypted)
static byte[]	encrypt(Key key, String specificAlgorithm, byte[] toBeEncrypted, AlgorithmParameterSpec algorithmParameterSpec)
static Key	generateKey(SymmetricAlgorithm algorithm)
static KeyPair	generateKeyPair(AsymmetricAlgorithm algorithm)
static byte[]	hash(HashAlgorithm algorithm, byte[] toBeHashed)
static byte[]	hexDecode(byte[] toBeDecoded)
static byte[]	hexDecode(String toBeDecoded)
static String	hexEncode(byte[] bytes)
static String	hexEncode(byte[] bytes, int offset, int length)
static byte[]	serializeKey(Key key)
static byte[]	sign(HMACSigningAlgorithm algorithm, Key secretKey, byte[] data)
static byte[]	sign(RSASigningAlgorithm algorithm, PrivateKey privateKey, byte[] data)
static boolean	verify(RSASigningAlgorithm algorithm, PublicKey publicKey, byte[] data, byte[] signedData)

Methods inherited from class java.lang.Object

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

Constructor Detail

EncryptionUtility

public EncryptionUtility()

Method Detail

hexEncode

public static String hexEncode(byte[] bytes)

hexEncode

public static String hexEncode(byte[] bytes,
                               int offset,
                               int length)

hexDecode

public static byte[] hexDecode(String toBeDecoded)
                        throws UnsupportedEncodingException

Throws:

UnsupportedEncodingException

hexDecode

public static byte[] hexDecode(byte[] toBeDecoded)
                        throws UnsupportedEncodingException

Throws:

UnsupportedEncodingException

hash

public static byte[] hash(HashAlgorithm algorithm,
                          byte[] toBeHashed)
                   throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

sign

public static byte[] sign(HMACSigningAlgorithm algorithm,
                          Key secretKey,
                          byte[] data)
                   throws NoSuchAlgorithmException,
                          InvalidKeyException

Throws:

NoSuchAlgorithmException

InvalidKeyException

sign

public static byte[] sign(RSASigningAlgorithm algorithm,
                          PrivateKey privateKey,
                          byte[] data)
                   throws NoSuchProviderException,
                          NoSuchAlgorithmException,
                          InvalidKeyException,
                          SignatureException

Throws:

NoSuchProviderException

NoSuchAlgorithmException

InvalidKeyException

SignatureException

verify

public static boolean verify(RSASigningAlgorithm algorithm,
                             PublicKey publicKey,
                             byte[] data,
                             byte[] signedData)
                      throws NoSuchProviderException,
                             NoSuchAlgorithmException,
                             InvalidKeyException,
                             SignatureException

Throws:

NoSuchProviderException

NoSuchAlgorithmException

InvalidKeyException

SignatureException

generateKey

public static Key generateKey(SymmetricAlgorithm algorithm)
                       throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

generateKeyPair

public static KeyPair generateKeyPair(AsymmetricAlgorithm algorithm)
                               throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

serializeKey

public static byte[] serializeKey(Key key)
                           throws IOException

Throws:

IOException

deserializeKey

public static Key deserializeKey(byte[] keyBytes)
                          throws IOException,
                                 ClassNotFoundException

Throws:

IOException

ClassNotFoundException

encrypt

public static byte[] encrypt(Key key,
                             byte[] toBeEncrypted)
                      throws NoSuchAlgorithmException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

encrypt

public static byte[] encrypt(Key key,
                             String specificAlgorithm,
                             byte[] toBeEncrypted)
                      throws NoSuchAlgorithmException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

encrypt

public static byte[] encrypt(Key key,
                             byte[] toBeEncrypted,
                             AlgorithmParameterSpec algorithmParameterSpec)
                      throws NoSuchAlgorithmException,
                             InvalidAlgorithmParameterException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

InvalidAlgorithmParameterException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

encrypt

public static byte[] encrypt(Key key,
                             String specificAlgorithm,
                             byte[] toBeEncrypted,
                             AlgorithmParameterSpec algorithmParameterSpec)
                      throws NoSuchAlgorithmException,
                             InvalidAlgorithmParameterException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

InvalidAlgorithmParameterException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

decrypt

public static byte[] decrypt(Key key,
                             byte[] toBeDecrypted)
                      throws NoSuchAlgorithmException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

decrypt

public static byte[] decrypt(Key key,
                             String specificAlgorithm,
                             byte[] toBeDecrypted)
                      throws NoSuchAlgorithmException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

decrypt

public static byte[] decrypt(Key key,
                             byte[] toBeDecrypted,
                             AlgorithmParameterSpec algorithmParameterSpec)
                      throws NoSuchAlgorithmException,
                             InvalidAlgorithmParameterException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

InvalidAlgorithmParameterException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

decrypt

public static byte[] decrypt(Key key,
                             String specificAlgorithm,
                             byte[] toBeDecrypted,
                             AlgorithmParameterSpec algorithmParameterSpec)
                      throws NoSuchAlgorithmException,
                             InvalidAlgorithmParameterException,
                             NoSuchPaddingException,
                             InvalidKeyException,
                             IllegalBlockSizeException,
                             BadPaddingException

Throws:

NoSuchAlgorithmException

InvalidAlgorithmParameterException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException