Package org.apache.parquet.crypto

Class AesCipher

java.lang.Object

org.apache.parquet.crypto.AesCipher

Direct Known Subclasses:

AesCtrDecryptor, AesCtrEncryptor, AesGcmDecryptor, AesGcmEncryptor

public class AesCipher
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected SecretKeySpec	aesKey
protected static int	CHUNK_LENGTH
protected Cipher	cipher
protected static int	CTR_IV_LENGTH
static int	GCM_TAG_LENGTH
protected static int	GCM_TAG_LENGTH_BITS
protected byte[]	localNonce
static int	NONCE_LENGTH
protected SecureRandom	randomGenerator
protected static int	SIZE_LENGTH

Method Summary

Modifier and Type	Method	Description
static byte[]	createFooterAAD(byte[] aadPrefixBytes)
static byte[]	createModuleAAD(byte[] fileAAD, ModuleCipherFactory.ModuleType moduleType, int rowGroupOrdinal, int columnOrdinal, int pageOrdinal)
static void	quickUpdatePageAAD(byte[] pageAAD, int newPageOrdinal)

Methods inherited from class java.lang.Object

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

Field Detail

NONCE_LENGTH

public static final int NONCE_LENGTH

See Also:

Constant Field Values

GCM_TAG_LENGTH

public static final int GCM_TAG_LENGTH

See Also:

Constant Field Values

CTR_IV_LENGTH

protected static final int CTR_IV_LENGTH

See Also:

Constant Field Values

GCM_TAG_LENGTH_BITS

protected static final int GCM_TAG_LENGTH_BITS

See Also:

Constant Field Values

CHUNK_LENGTH

protected static final int CHUNK_LENGTH

See Also:

Constant Field Values

SIZE_LENGTH

protected static final int SIZE_LENGTH

See Also:

Constant Field Values

aesKey

protected SecretKeySpec aesKey

randomGenerator

protected final SecureRandom randomGenerator

cipher

protected Cipher cipher

localNonce

protected final byte[] localNonce

Method Detail

createModuleAAD

public static byte[] createModuleAAD(byte[] fileAAD,
                                     ModuleCipherFactory.ModuleType moduleType,
                                     int rowGroupOrdinal,
                                     int columnOrdinal,
                                     int pageOrdinal)

createFooterAAD

public static byte[] createFooterAAD(byte[] aadPrefixBytes)

quickUpdatePageAAD

public static void quickUpdatePageAAD(byte[] pageAAD,
                                      int newPageOrdinal)