org.apache.hadoop.hbase.io.crypto.aes

Class CryptoAES

java.lang.Object

org.apache.hadoop.hbase.io.crypto.aes.CryptoAES

@InterfaceAudience.Private
 @InterfaceStability.Evolving
public class CryptoAES
extends Object

AES encryption and decryption.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	CryptoAES.Integrity Helper class for providing integrity protection.

Field Summary

Fields

Modifier and Type	Field and Description
private org.apache.commons.crypto.cipher.CryptoCipher	decryptor
private org.apache.commons.crypto.cipher.CryptoCipher	encryptor
private CryptoAES.Integrity	integrity

Constructor Summary

Constructors

Constructor and Description
CryptoAES(String transformation, Properties properties, byte[] inKey, byte[] outKey, byte[] inIv, byte[] outIv)

Method Summary

Modifier and Type	Method and Description
private void	checkTransformation(String transformation)
byte[]	unwrap(byte[] data, int offset, int len) Decrypts input data.
byte[]	wrap(byte[] data, int offset, int len) Encrypts input data.

Methods inherited from class java.lang.Object

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

Field Detail

encryptor

private final org.apache.commons.crypto.cipher.CryptoCipher encryptor

decryptor

private final org.apache.commons.crypto.cipher.CryptoCipher decryptor

integrity

private final CryptoAES.Integrity integrity

Constructor Detail

CryptoAES

public CryptoAES(String transformation,
                 Properties properties,
                 byte[] inKey,
                 byte[] outKey,
                 byte[] inIv,
                 byte[] outIv)
          throws IOException

Throws:

IOException

Method Detail

wrap

public byte[] wrap(byte[] data,
                   int offset,
                   int len)
            throws SaslException

Encrypts input data. The result composes of (msg, padding if needed, mac) and sequence num.

Parameters:

data - the input byte array

offset - the offset in input where the input starts

len - the input length

Returns:

the new encrypted byte array.

Throws:

SaslException - if error happens

unwrap

public byte[] unwrap(byte[] data,
                     int offset,
                     int len)
              throws SaslException

Decrypts input data. The input composes of (msg, padding if needed, mac) and sequence num. The result is msg.

Parameters:

data - the input byte array

offset - the offset in input where the input starts

len - the input length

Returns:

the new decrypted byte array.

Throws:

SaslException - if error happens

checkTransformation

private void checkTransformation(String transformation)
                          throws IOException

Throws:

IOException