Package com.amazonaws.athena.connector.lambda.security

Class AesGcmBlockCrypto

java.lang.Object

com.amazonaws.athena.connector.lambda.security.AesGcmBlockCrypto

All Implemented Interfaces:

BlockCrypto

public class AesGcmBlockCrypto
extends Object
implements BlockCrypto

Implementation of BlockCrypto which uses AES-GCM for encrypting and decrypting blocks.

See Also:

BlockCrypto

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	ALGO
protected static String	ALGO_BC
protected static int	GCM_TAG_LENGTH_BITS
protected static int	KEY_BYTES
protected static String	KEYSPEC
protected static int	NONCE_BYTES

Constructor Summary

Constructors

Constructor	Description
AesGcmBlockCrypto(BlockAllocator allocator)

Method Summary

Modifier and Type	Method	Description
byte[]	decrypt(EncryptionKey key, byte[] bytes)	Used to decrypt a Block's serialzied form.
Block	decrypt(EncryptionKey key, byte[] bytes, org.apache.arrow.vector.types.pojo.Schema schema)	Used to decrypt and deserialize a Block from the provided bytes and schema.
byte[]	encrypt(EncryptionKey key, Block block)	Used to encrypt the provided Block in its serialized form.

Methods inherited from class java.lang.Object

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

Field Detail

GCM_TAG_LENGTH_BITS

protected static final int GCM_TAG_LENGTH_BITS

See Also:

Constant Field Values

NONCE_BYTES

protected static final int NONCE_BYTES

See Also:

Constant Field Values

KEY_BYTES

protected static final int KEY_BYTES

See Also:

Constant Field Values

KEYSPEC

protected static final String KEYSPEC

See Also:

Constant Field Values

ALGO

protected static final String ALGO

See Also:

Constant Field Values

ALGO_BC

protected static final String ALGO_BC

See Also:

Constant Field Values

Constructor Detail

AesGcmBlockCrypto

public AesGcmBlockCrypto(BlockAllocator allocator)

Method Detail

encrypt

public byte[] encrypt(EncryptionKey key,
                      Block block)

Description copied from interface: BlockCrypto

Used to encrypt the provided Block in its serialized form.

Specified by:

encrypt in interface BlockCrypto

Parameters:

key - The EncryptionKey to use when encrypting the Block.

block - The Block to serialize and encrypt.

Returns:

The encrypted byte[] representation of the serialized Block, excluding its Schema.

decrypt

public Block decrypt(EncryptionKey key,
                     byte[] bytes,
                     org.apache.arrow.vector.types.pojo.Schema schema)

Description copied from interface: BlockCrypto

Used to decrypt and deserialize a Block from the provided bytes and schema.

Specified by:

decrypt in interface BlockCrypto

Parameters:

key - The EncryptionKey to use when decrypting the Block.

bytes - The encrypted serialized form of the Block.

schema - The schema of the encrypted block

Returns:

The Block.

decrypt

public byte[] decrypt(EncryptionKey key,
                      byte[] bytes)

Description copied from interface: BlockCrypto

Used to decrypt a Block's serialzied form.

Specified by:

decrypt in interface BlockCrypto

Parameters:

key - The EncryptionKey to use when decrypting the Block.

bytes - The encrypted serialized form of the Block.

Returns:

The serialzied Block.