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

Class CommonsCryptoAES

java.lang.Object

org.apache.hadoop.hbase.io.crypto.Cipher

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

@Private
@Evolving
public class CommonsCryptoAES
extends Cipher

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CIPHER_CLASSES_KEY
static final String	CIPHER_JCE_PROVIDER_KEY
static final String	CIPHER_MODE_KEY
private final String	cipherMode
static final String	CRYPTOSTREAM_BUFFERSIZE_KEY
private static final org.slf4j.Logger	LOG
private Properties	props
private SecureRandom	rng
private final String	rngAlgorithm

Fields inherited from class org.apache.hadoop.hbase.io.crypto.Cipher

BLOCK_SIZE, IV_LENGTH, KEY_LENGTH, KEY_LENGTH_BITS, RNG_ALGORITHM_KEY, RNG_PROVIDER_KEY

Constructor Summary

Constructors

Constructor	Description
CommonsCryptoAES(CipherProvider provider)

Method Summary

Modifier and Type	Method	Description
InputStream	createDecryptionStream(InputStream in, Context context, byte[] iv)	Create a decrypting input stream given a context and IV
InputStream	createDecryptionStream(InputStream in, Decryptor decryptor)	Create a decrypting output stream given an initialized decryptor
OutputStream	createEncryptionStream(OutputStream out, Context context, byte[] iv)	Create an encrypting output stream given a context and IV
OutputStream	createEncryptionStream(OutputStream out, Encryptor encryptor)	Create an encrypting output stream given an initialized encryptor
Decryptor	getDecryptor()	Return a decryptor for decrypting data.
Encryptor	getEncryptor()	Get an encryptor for encrypting data.
int	getIvLength()	Return the expected initialization vector length, in bytes, or 0 if not applicable
int	getKeyLength()	Return the key length required by this cipher, in bytes
String	getName()	Return this Cipher's name
Key	getRandomKey()	Create a random symmetric key
(package private) SecureRandom	getRNG()
private static Properties	readCryptoProps(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class org.apache.hadoop.hbase.io.crypto.Cipher

getProvider

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

CIPHER_MODE_KEY

public static final String CIPHER_MODE_KEY

See Also:

• Constant Field Values

CIPHER_CLASSES_KEY

public static final String CIPHER_CLASSES_KEY

See Also:

• Constant Field Values

CIPHER_JCE_PROVIDER_KEY

public static final String CIPHER_JCE_PROVIDER_KEY

See Also:

• Constant Field Values

CRYPTOSTREAM_BUFFERSIZE_KEY

public static final String CRYPTOSTREAM_BUFFERSIZE_KEY

See Also:

• Constant Field Values

cipherMode

private final String cipherMode

props

private Properties props

rngAlgorithm

private final String rngAlgorithm

rng

private SecureRandom rng

Constructor Details

CommonsCryptoAES

public CommonsCryptoAES(CipherProvider provider)

Method Details

readCryptoProps

private static Properties readCryptoProps(org.apache.hadoop.conf.Configuration conf)

getName

public String getName()

Description copied from class: Cipher

Return this Cipher's name

Specified by:

getName in class Cipher

getKeyLength

public int getKeyLength()

Description copied from class: Cipher

Return the key length required by this cipher, in bytes

Specified by:

getKeyLength in class Cipher

getIvLength

public int getIvLength()

Description copied from class: Cipher

Return the expected initialization vector length, in bytes, or 0 if not applicable

Specified by:

getIvLength in class Cipher

getRandomKey

public Key getRandomKey()

Description copied from class: Cipher

Create a random symmetric key

Specified by:

getRandomKey in class Cipher

Returns:

the random symmetric key

getEncryptor

public Encryptor getEncryptor()

Description copied from class: Cipher

Get an encryptor for encrypting data.

Specified by:

getEncryptor in class Cipher

getDecryptor

public Decryptor getDecryptor()

Description copied from class: Cipher

Return a decryptor for decrypting data.

Specified by:

getDecryptor in class Cipher

createEncryptionStream

public OutputStream createEncryptionStream(OutputStream out,
 Context context,
 byte[] iv)
                                    throws IOException

Description copied from class: Cipher

Create an encrypting output stream given a context and IV

Specified by:

createEncryptionStream in class Cipher

Parameters:

out - the output stream to wrap

context - the encryption context

iv - initialization vector

Returns:

the encrypting wrapper

Throws:

IOException

createEncryptionStream

public OutputStream createEncryptionStream(OutputStream out,
 Encryptor encryptor)
                                    throws IOException

Description copied from class: Cipher

Create an encrypting output stream given an initialized encryptor

Specified by:

createEncryptionStream in class Cipher

Parameters:

out - the output stream to wrap

encryptor - the encryptor

Returns:

the encrypting wrapper

Throws:

IOException

createDecryptionStream

public InputStream createDecryptionStream(InputStream in,
 Context context,
 byte[] iv)
                                   throws IOException

Description copied from class: Cipher

Create a decrypting input stream given a context and IV

Specified by:

createDecryptionStream in class Cipher

Parameters:

in - the input stream to wrap

context - the encryption context

iv - initialization vector

Returns:

the decrypting wrapper

Throws:

IOException

createDecryptionStream

public InputStream createDecryptionStream(InputStream in,
 Decryptor decryptor)
                                   throws IOException

Description copied from class: Cipher

Create a decrypting output stream given an initialized decryptor

Specified by:

createDecryptionStream in class Cipher

Parameters:

in - the input stream to wrap

decryptor - the decryptor

Returns:

the decrypting wrapper

Throws:

IOException

getRNG

SecureRandom getRNG()