net.named_data.jndn.encrypt.algo

Class RsaAlgorithm

java.lang.Object

net.named_data.jndn.encrypt.algo.RsaAlgorithm

public class RsaAlgorithm
extends Object

The RsaAlgorithm class provides static methods to manipulate keys, encrypt and decrypt using RSA.

Note:

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

Constructor Summary

Constructors

Constructor and Description
RsaAlgorithm()

Method Summary

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(RsaKeyParams params) Generate a new random decrypt key for RSA based on the given params.

Methods inherited from class java.lang.Object

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

Constructor Detail

RsaAlgorithm

public RsaAlgorithm()

Method Detail

generateKey

public static DecryptKey generateKey(RsaKeyParams params)
                              throws SecurityException

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

Parameters:

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

Returns:

The new decrypt key (PKCS8-encoded private key).

Throws:

SecurityException

deriveEncryptKey

public static EncryptKey deriveEncryptKey(Blob keyBits)
                                   throws SecurityException

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

Parameters:

keyBits - The key value of the decrypt key (PKCS8-encoded private key).

Returns:

The new encrypt key (DER-encoded public key).

Throws:

SecurityException

decrypt

public static Blob decrypt(Blob keyBits,
                           Blob encryptedData,
                           EncryptParams params)
                    throws SecurityException

Decrypt the encryptedData using the keyBits according the encrypt params.

Parameters:

keyBits - The key value (PKCS8-encoded private key).

encryptedData - The data to decrypt.

params - This decrypts according to params.getAlgorithmType().

Returns:

The decrypted data.

Throws:

SecurityException

encrypt

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

Encrypt the plainData using the keyBits according the encrypt params.

Parameters:

keyBits - The key value (DER-encoded public key).

plainData - The data to encrypt.

params - This encrypts according to params.getAlgorithmType().

Returns:

The encrypted data.

Throws:

InvalidKeySpecException

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException