net.named_data.jndn.encrypt.algo

Class AesAlgorithm

java.lang.Object

net.named_data.jndn.encrypt.algo.AesAlgorithm

public class AesAlgorithm
extends Object

The AesAlgorithm class provides static methods to manipulate keys, encrypt and decrypt using the AES symmetric key cipher.

Note:

This class is an experimental feature. The API may change.

Field Summary

Fields

Modifier and Type	Field and Description
static int	BLOCK_SIZE

Constructor Summary

Constructors

Constructor and Description
AesAlgorithm()

Method Summary

Methods

Modifier and Type	Method and Description
static Blob	decrypt(Blob keyBits, Blob encryptedData, EncryptParams params) Decrypt the encryptedData using the keyBits according the encrypt params.
static EncryptKey	deriveEncryptKey(Blob keyBits) Derive a new encrypt key from the given decrypt key value.
static Blob	encrypt(Blob keyBits, Blob plainData, EncryptParams params) Encrypt the plainData using the keyBits according the encrypt params.
static DecryptKey	generateKey(AesKeyParams params) Generate a new random decrypt key for AES based on the given params.

Methods inherited from class java.lang.Object

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

Field Detail

BLOCK_SIZE

public static final int BLOCK_SIZE

See Also:

Constant Field Values

Constructor Detail

AesAlgorithm

public AesAlgorithm()

Method Detail

generateKey

public static DecryptKey generateKey(AesKeyParams params)

Generate a new random decrypt key for AES based on the given params.

Parameters:

params - The key params with the key size (in bits).

Returns:

The new decrypt key.

deriveEncryptKey

public static EncryptKey deriveEncryptKey(Blob keyBits)

Derive a new encrypt key from the given decrypt key value.

Parameters:

keyBits - The key value of the decrypt key.

Returns:

The new encrypt key.

decrypt

public static Blob decrypt(Blob keyBits,
           Blob encryptedData,
           EncryptParams params)
                    throws NoSuchAlgorithmException,
                           NoSuchPaddingException,
                           InvalidKeyException,
                           IllegalBlockSizeException,
                           BadPaddingException,
                           InvalidAlgorithmParameterException

Decrypt the encryptedData using the keyBits according the encrypt params.

Parameters:

keyBits - The key value.

encryptedData - The data to decrypt.

params - This decrypts according to params.getAlgorithmType() and other params as needed such as params.getInitialVector().

Returns:

The decrypted data.

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

InvalidAlgorithmParameterException

encrypt

public static Blob encrypt(Blob keyBits,
           Blob plainData,
           EncryptParams params)
                    throws NoSuchAlgorithmException,
                           NoSuchPaddingException,
                           InvalidKeyException,
                           IllegalBlockSizeException,
                           BadPaddingException,
                           InvalidAlgorithmParameterException

Encrypt the plainData using the keyBits according the encrypt params.

Parameters:

keyBits - The key value.

plainData - The data to encrypt.

params - This encrypts according to params.getAlgorithmType() and other params as needed such as params.getInitialVector().

Returns:

The encrypted data.

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

InvalidAlgorithmParameterException